CN215585281U - Emergency oxygen supply device - Google Patents
Emergency oxygen supply device Download PDFInfo
- Publication number
- CN215585281U CN215585281U CN202122210886.0U CN202122210886U CN215585281U CN 215585281 U CN215585281 U CN 215585281U CN 202122210886 U CN202122210886 U CN 202122210886U CN 215585281 U CN215585281 U CN 215585281U
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- CN
- China
- Prior art keywords
- magnetizable
- oxygen supply
- stop member
- assembly
- cover plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 82
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 82
- 239000001301 oxygen Substances 0.000 title claims abstract description 82
- 230000007246 mechanism Effects 0.000 claims abstract description 39
- 239000002184 metal Substances 0.000 claims description 17
- 229910052751 metal Inorganic materials 0.000 claims description 17
- 238000004891 communication Methods 0.000 claims description 4
- 230000007704 transition Effects 0.000 abstract description 2
- 238000009434 installation Methods 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- Respiratory Apparatuses And Protective Means (AREA)
Abstract
An emergency oxygen supply apparatus includes an oxygen source, a housing, an oxygen mask disposed within the housing, an oxygen supply hose connecting the oxygen source to the oxygen mask, and a latch mechanism disposed on the housing and including a removable cover plate having a catch, wherein the latch mechanism further includes a magnetizable component, and wherein the latch mechanism is configured to transition between a closed state in which the catch catches the catch of the removable cover plate of the latch mechanism to prevent movement of the removable cover plate, and an open state in which the magnetizable component is magnetized to generate a magnetic force, the catch being magnetically disengaged from the catch of the removable cover plate to allow movement of the removable cover plate.
Description
Technical Field
The utility model belongs to the field of civil aircraft oxygen systems, and more particularly relates to an emergency oxygen supply device for aircraft passengers.
Background
The passenger emergency oxygen supply device is a device for supplying emergency oxygen to passengers on an airplane in an emergency. The passenger emergency oxygen supply device mainly comprises a container shell, a movable cover plate, a latch mechanism, an oxygen source, an oxygen mask and a connecting hose. Under normal conditions, the movable cover plate is locked by the latch mechanism to be kept in a closed state, the airplane sends a passenger mask throwing signal under emergency conditions, the latch mechanism is connected with current and releases the movable cover plate, the passenger mask is thrown along with the current, and a passenger pulls and wears the mask to activate the oxygen source to generate oxygen.
The existing latch mechanism of the passenger emergency oxygen supply device locks the movable cover plate by applying magnetic attraction force to the magnetizable element through the permanent magnet. When the solenoid inside the latch mechanism is energized, the current generates a magnetic field that cancels a portion of the magnetic field of the permanent magnet, and the magnetic attraction on the magnetizable element is reduced to a level that causes the removable cover to open.
The conventional passenger emergency oxygen supply device has the problems that the positive electrode and the negative electrode of a power supply need to be correctly connected to ensure that the current of a solenoid in a latch mechanism flows in the design direction to offset the magnetic field of a permanent magnet, if the positive electrode and the negative electrode of the power supply are connected reversely, the magnetic field of the permanent magnet cannot be offset, a movable cover plate cannot be opened, an oxygen mask cannot be thrown down in an emergency, and the life safety of passengers is damaged.
Therefore, an emergency oxygen supply device for passengers is desired, which can prevent installation errors occurring in the prior art to guarantee the life safety of passengers.
SUMMERY OF THE UTILITY MODEL
The utility model provides an emergency oxygen supply device. The emergency oxygen supply device generates a magnetic field when in use through the magnetizable element so as to generate magnetic attraction to the magnetizable element and enable the magnetizable element to actuate, loosen the movable cover plate and throw the oxygen mask. The device can enable the oxygen mask to be thrown without distinguishing the anode and the cathode of a power supply, and error-proof installation can be realized.
Specifically, the emergency oxygen supply device comprises an oxygen source, a housing, an oxygen mask placed in the housing, an oxygen supply hose connecting the oxygen source with the oxygen mask, and a latch mechanism disposed on the housing and comprising a removable cover plate having a hook, wherein the latch mechanism further comprises a magnetizable component, and wherein the latch mechanism is configured to be switched between a closed state in which the stop member catches the hook of the removable cover plate of the latch mechanism to prevent movement of the removable cover plate, and an open state in which the magnetizable component is magnetized to generate a magnetic force, the stop member being separated from the hook of the removable cover plate by the magnetic force to allow movement of the removable cover plate.
Further, the emergency oxygen supply device further comprises a spring, and the spring exerts elastic force on the stopping component to promote the stopping component to clamp the hook. The spring enables the latch mechanism to transition between a closed state and an open state.
Further, the magnetizable assembly comprises an inner space extending away from the hook and terminating at an end of the magnetizable assembly, and wherein the magnetic force attracts the stop member into the inner space such that the stop member is separated from the hook against the spring force.
In an embodiment of the utility model, the spring is positioned between the stop member and an end of the magnetizable assembly. This positioning structure is simple and makes it easier for the spring to exert a spring force.
In another embodiment of the utility model, the spring is positioned around the stop member outside the magnetizable assembly. This external positioning makes it easier to replace the spring.
Optionally, the stop member is rod-shaped, and the inner space of the magnetizable assembly conforms to the shape of the stop member to allow the stop member to move in the inner space.
The magnetizable assembly includes a magnetizable metal, a solenoid disposed around the magnetizable metal and in communication with the circuit, and a circuit. When the circuit is completed, current is applied to the solenoid to cause the magnetizable member to generate a magnetic force
The movable cover plate is connected with the shell through a hinge, so that the movable cover plate can be hinged. The connection mode can realize convenient resetting of the movable cover plate.
Additional features and advantages of the emergency oxygen supply apparatus described herein will be set forth in the detailed description which follows, and in part will be readily apparent to those skilled in the art from that description or recognized by practicing the embodiments described herein, including the detailed description which follows.
Drawings
With reference to the above objects, the technical features of the present invention are clearly described in the following claims, and its advantages are apparent from the following detailed description with reference to the accompanying drawings, which illustrate by way of example a preferred embodiment of the present invention, without limiting the scope of the inventive concept.
FIG. 1 is a schematic view of an emergency oxygen supply apparatus according to an embodiment of the present invention, wherein the latch mechanism is in a closed position;
FIG. 2 is a schematic view of an emergency oxygen supply apparatus according to an embodiment of the present invention, wherein the latch mechanism is in an open position; and
fig. 3 is a schematic view of an emergency oxygen supply apparatus according to another embodiment of the present invention.
Reference numerals
1 Emergency oxygen supply device
2 removable cover plate
3 hook
4 stop part
5 magnetizable assembly
6 magnetizable metals
7 inner space
8 solenoid
9 end part
10 spring
Detailed Description
The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings in order to more clearly understand the objects, features and advantages of the present invention.
Fig. 1 and 2 show an emergency oxygen supply device according to an embodiment of the utility model. The emergency oxygen supply apparatus comprises an oxygen source, a housing, an oxygen mask placed inside the housing, an oxygen supply hose connecting the oxygen source with the oxygen mask (for simplicity, none of the above components are shown in the figures), and a latch mechanism 1 provided on the housing and comprising a removable cover plate 2 with a hook 3, a stop member 4 and a magnetisable assembly 5. The movable cover plate 2 is connected with the shell through a hinge, so that the movable cover plate can be hinged, and the convenient resetting of the movable cover plate 2 is realized through the connection mode.
As shown, the magnetizable assembly 5 includes a magnetizable metal 6, a solenoid 8, and a circuit (not shown), the solenoid 8 being disposed around the magnetizable metal 6 and in communication with the circuit. When the circuit is closed, the solenoid 8 may be energised and generate a magnetic field via the magnetisable metal 6, thereby generating a magnetic force, i.e. when energised, the magnetisable assembly 5 may act as a magnet. It is noted that the magnetizable metal 6 is made of a material other than a permanent magnet, and the direction in which the solenoid 8 surrounds the magnetizable metal 6 and the direction of the current of the circuit are optional, to avoid failure due to orientation, enabling false mounting.
With continued reference to fig. 1 and 2, fig. 1 shows the latch mechanism 1 of the present embodiment in the closed state, and fig. 2 shows the latch mechanism 1 of the present embodiment in the open state. In the closed state, the flap 2 of the latch mechanism 1 is restricted from movement, and in particular, the catch member 4 catches the catch 3 of the flap 2 of the latch mechanism 1 to prevent the flap 2 from hinging so that the oxygen mask falls out of the housing. In the open state, since the magnetizable member 5 is magnetized to generate a magnetic force, the stopper member 4 is attracted toward the magnetizable member 5 by the magnetic force, whereby the stopper member 4 is separated from the hook 3 of the access panel 2 to allow the access panel 2 to move. The stop member 4 may be made of a magnetizable metal, such as iron, to allow the stop member to be subjected to a magnetic force.
Preferably, the magnetizable assembly 5 comprises an inner space 7, which inner space 7 extends away from the hook 3 and terminates at an end 9 of the magnetizable assembly. The inner space 7 is configured to conform to the stopper member 4 such that the stopper member 4 can freely enter and exit. In this embodiment, the stop member 4 is shaped as a straight bar and the inner space 7 is shaped as a cylindrical recess, whereby in the open state the magnetic attraction generated by the magnetizable assembly 5 attracts the stop member 4 into the inner space 7, so that the stop member 4 is separated from the hook 3. It is to be noted that, although the stopper member 4 is shown as a rod-like in the present embodiment, the stopper member 4 may have
Further, the latch mechanism 1 comprises a spring 10, which spring 10 is positioned in the inner space 7 between the stop member 4 and the end 9 of the magnetizable assembly 5 to apply a spring force to the stop member 4 to urge the stop member 4 to catch the hook 3. The presence of the spring enables the latch mechanism 1 to be switched between the closed state and the open state. Specifically, upon receipt of a release signal, the magnetizable member 5 generates a magnetic force that separates the stop member 4 from the hook 3 against the spring force exerted by the spring to allow the flap 2 to hinge, whereby the latch mechanism 1 is switched from the closed state to the open state to allow the oxygen mask to be released. When the operator pivots the flap 2 back to the closed position, the electrical circuit is open, so that the magnetisable assembly 5 does not generate a magnetic force, and the spring force again pushes the stop member 4 towards the flap 2 and catches the flap 2, whereby the latch mechanism 1 is switched from the open state to the closed state to place the oxygen mask in the housing of the emergency oxygen supply device.
Fig. 3 shows an emergency oxygen supply device according to another embodiment of the utility model. The emergency oxygen supply apparatus similarly comprises an oxygen source, a housing, an oxygen mask placed inside the housing, an oxygen supply hose connecting the oxygen source with the oxygen mask, and a latch mechanism 1 provided on the housing and comprising a removable cover plate 2 with a hook 3, a stop member 4 and a magnetisable assembly 5. The movable cover plate 2 is connected with the shell through a hinge, so that the movable cover plate can be hinged.
As shown, the magnetizable assembly 5 includes a magnetizable metal 6, a solenoid 8, and a circuit (not shown), the solenoid 8 being disposed around the magnetizable metal 6 and in communication with the circuit. When the circuit is closed, the solenoid 8 may be energised and generate a magnetic field via the magnetisable metal 6, thereby generating a magnetic force, i.e. when energised, the magnetisable assembly 5 may act as a magnet. It is noted that the magnetizable metal 6 is made of a material other than a permanent magnet, and the direction in which the solenoid 8 surrounds the magnetizable metal 6 and the direction of the current of the circuit are optional, to avoid failure due to orientation, enabling false mounting.
As in the previous embodiment, the latch mechanism 1 has a closed state and an open state. In the closed state, the flap 2 of the latch mechanism 1 is restricted from movement, and in particular, the catch member 4 catches the catch 3 of the flap 2 of the latch mechanism 1 to prevent the flap 2 from hinging so that the oxygen mask falls out of the housing. In the open state, since the magnetizable member 5 is magnetized to generate a magnetic force, the stopper member 4 is attracted toward the magnetizable member 5 by the magnetic force, whereby the stopper member 4 is separated from the hook 3 of the access panel 2 to allow the access panel 2 to move. The stop member 4 may be made of a magnetizable metal, such as iron, to allow the stop member to be subjected to a magnetic force.
Preferably, magnetizable assembly 5 comprises an inner space (not shown), which inner space 7 is configured to conform to stop member 4, such that stop member 4 can freely enter and exit. In this embodiment, the stop member 4 is shaped as a straight bar and the inner space 7 is shaped as a cylindrical recess, whereby in the open state the magnetic attraction generated by the magnetizable assembly 5 attracts the stop member 4 into the inner space 7, so that the stop member 4 is separated from the hook 3. It is to be noted that, although the stopper member 4 is shown as a rod-like in the present embodiment, the stopper member 4 may have
Further, the latch mechanism 1 comprises a spring 10, which spring 10 is positioned around the stop member 4 outside the magnetizable assembly 5 to apply an elastic force to the stop member 4 to urge the stop member 4 to catch the hook 3. The presence of the spring enables the latch mechanism 1 to be switched between the closed state and the open state. Specifically, upon receipt of a release signal, the magnetizable member 5 generates a magnetic force that separates the stop member 4 from the hook 3 against the spring force exerted by the spring to allow the flap 2 to hinge, whereby the latch mechanism 1 is switched from the closed state to the open state to allow the oxygen mask to be released. When the operator pivots the flap 2 back to the closed position, the electrical circuit is open, so that the magnetisable assembly 5 does not generate a magnetic force, and the spring force again pushes the stop member 4 towards the flap 2 and catches the flap 2, whereby the latch mechanism 1 is switched from the open state to the closed state to place the oxygen mask in the housing of the emergency oxygen supply device. Furthermore, the spring 10 positioned outside the magnetizable assembly 5 is easy to replace.
The passenger emergency oxygen supply device provided by the utility model has the following functions:
in a first aspect, an emergency oxygen supply apparatus may store an oxygen mask during normal flight conditions, may be deployed during emergency conditions, and provide emergency oxygen to passengers. In addition, the movable cover plate which can be conveniently reset after being repaired and replaced is provided.
In a second aspect, the emergency oxygen supply apparatus improves the reliability of oxygen mask deployment. Traditional passenger emergency oxygen supply device need connect to the positive negative pole of power correctly, in case connect conversely, can lead to unable oxygen mask of throwing down under the emergency, endangers passenger life safety. The utility model aims to eliminate the hidden trouble of error installation of the traditional passenger emergency oxygen supply device, and provides an error-proof passenger emergency oxygen supply device without distinguishing the anode and the cathode of a power supply. The utility model is easy to implement, has simple structure, all the components in the device have higher maturity, achieves the aim of error-proof installation by combining the mature components, and improves the safety of the airplane.
While the structure and method of installation of the present invention has been described in connection with the preferred embodiments, it is to be understood by those skilled in the art that the above examples are intended in an illustrative rather than in a limiting sense. Thus, modifications and variations may be made to the present invention which fall within the scope of the claims appended hereto.
Claims (8)
1. An emergency oxygen supply apparatus, comprising:
a source of oxygen;
a housing;
an oxygen mask disposed within the housing;
an oxygen supply hose connecting the oxygen source with the oxygen mask; and
a latch mechanism disposed on the housing and including a removable cover plate having a catch and a stop member,
characterized in that the latching mechanism further comprises a magnetizable assembly and wherein the latching mechanism is configured to be switched between a closed state in which the stop member catches the catch of the flap of the latching mechanism to prevent movement of the flap and an open state in which the magnetizable assembly is magnetized to generate a magnetic force under which the stop member is disengaged from the catch of the flap to allow movement of the flap.
2. The emergency oxygen supply apparatus of claim 1,
the latch mechanism further includes a spring that applies an elastic force to the stopper member to urge the stopper member to catch the hook.
3. The emergency oxygen supply apparatus of claim 2,
the magnetizable assembly comprises an inner space extending away from the hook and terminating at an end of the magnetizable assembly, and wherein the magnetic force attracts the stop member into the inner space such that the stop member is separated from the hook against the spring force.
4. The emergency oxygen supply apparatus of claim 2,
the spring is positioned between the stop member and an end of the magnetizable assembly.
5. An emergency oxygen supply apparatus according to claim 3,
the spring is positioned around the stop member outside of the magnetizable assembly.
6. The emergency oxygen supply apparatus of claim 2,
the stop member is rod-shaped.
7. The emergency oxygen supply apparatus of claim 1,
the magnetizable assembly includes a magnetizable metal, a solenoid disposed around the magnetizable metal and in communication with the circuit, and a circuit.
8. The emergency oxygen supply apparatus of claim 1,
the movable cover plate is connected with the shell through a hinge, so that the movable cover plate can be hinged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122210886.0U CN215585281U (en) | 2021-09-13 | 2021-09-13 | Emergency oxygen supply device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122210886.0U CN215585281U (en) | 2021-09-13 | 2021-09-13 | Emergency oxygen supply device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215585281U true CN215585281U (en) | 2022-01-21 |
Family
ID=79885685
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122210886.0U Active CN215585281U (en) | 2021-09-13 | 2021-09-13 | Emergency oxygen supply device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215585281U (en) |
-
2021
- 2021-09-13 CN CN202122210886.0U patent/CN215585281U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |