CN117048833B - Pressure-releasing oxygen-supplying device for passenger cabin and control method - Google Patents
Pressure-releasing oxygen-supplying device for passenger cabin and control method Download PDFInfo
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- CN117048833B CN117048833B CN202310929335.0A CN202310929335A CN117048833B CN 117048833 B CN117048833 B CN 117048833B CN 202310929335 A CN202310929335 A CN 202310929335A CN 117048833 B CN117048833 B CN 117048833B
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- box cover
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- hollow shaft
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- 238000000034 method Methods 0.000 title claims description 15
- 238000004804 winding Methods 0.000 claims abstract description 89
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 46
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 46
- 239000001301 oxygen Substances 0.000 claims abstract description 46
- 238000011084 recovery Methods 0.000 claims abstract description 7
- 230000009471 action Effects 0.000 claims description 15
- 230000007246 mechanism Effects 0.000 claims description 10
- 230000005484 gravity Effects 0.000 claims description 9
- 230000005540 biological transmission Effects 0.000 claims description 6
- 238000009825 accumulation Methods 0.000 abstract description 2
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 208000002173 dizziness Diseases 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D11/00—Passenger or crew accommodation; Flight-deck installations not otherwise provided for
Landscapes
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
Abstract
The invention relates to the technical field of oxygen supply devices, in particular to a pressure-releasing and oxygen supply device for a passenger cabin, which comprises a control box, a mask box arranged below the control box and a box cover rotatably connected below the mask box; wherein at least one mask is accommodated in the mask box, a first winding assembly which is opposite to the number of the masks is arranged in the control box, and an oxygen supply pipe of the mask is unfolded and folded through the first winding assembly; the invention adopts the composition mode of the winding wheel and the stay wire to realize the recovery and release of the mask and the box cover, after the mask is used, the automatic traction recovery of the mask can be realized, the problem of interference between oxygen supply pipes of the mask caused by mutual accumulation and placement is effectively avoided, and meanwhile, the invention also configures a manual unlocking mode, so that the manual unlocking of the box cover can be realized when circuit components are damaged in emergency, and the safety of passengers is further ensured.
Description
Technical Field
The invention relates to the technical field of oxygen supply devices, in particular to a pressure-releasing oxygen supply device for a passenger cabin and a control method.
Background
The current civil aviation aircraft is provided with an automatic supercharging device, so that the pressure in a cabin of the aircraft is consistent with the ground when the aircraft flies at high altitude, the life health of passengers is guaranteed, once an emergency is met, the pressure in the cabin is lost, the high altitude oxygen is thin, and the passengers can dizziness, lose consciousness and are difficult to breathe in an anoxic environment, so that the life is endangered, and an oxygen mask is needed to maintain the life under the condition.
The current oxygen mask structure adopts a lid that can expand under emergency automatically more, when the lid is opened, oxygen mask is sagged naturally under the action of gravity, and the passenger can use it, after using, put back the face guard in the face guard box one by one again, preserve it through closing the lid to treat the next use, but owing to still be connected with the oxygen supply tube on the oxygen mask, the direct stopper of turning back is placed and is very easily taken place winding overlap joint between the support tube of a plurality of oxygen masks, causes when emergency takes place, and the face guard can't fall smoothly one by one to further cause passenger's panic nature and life threatening safety.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides a pressure-releasing and oxygen-supplying device for a passenger cabin and a control method thereof.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the pressure and oxygen supply device for the passenger cabin comprises a control box, a mask box arranged below the control box and a box cover rotatably connected below the mask box;
Wherein at least one mask is accommodated in the mask box, a first winding assembly which is opposite to the number of the masks is arranged in the control box, and an oxygen supply pipe of the mask is unfolded and folded through the first winding assembly;
the first winding assembly is driven by a first driving piece, a control mechanism for controlling the opening and closing of the box cover is further arranged in the mask box, and a manual unlocking assembly for triggering the control mechanism to unlock is further arranged on the mask box.
Further, the control mechanism comprises a padlock component and a second winding component, wherein the second winding component has the same structure as the first winding component, and is driven by a second driving piece.
Further, the first winding assembly includes a hollow shaft rotatably coupled to the control box, the hollow shaft being fixed to the first driving member;
the outer side of the hollow shaft is rotatably connected with a hoisting wheel, and a fit assembly is further arranged between the hollow shaft and the hoisting wheel and used for keeping the hollow shaft and the hoisting wheel locked in the circumferential direction;
The outside of the winding wheel is also provided with a stay wire, the stay wire on the first winding component and the oxygen supply pipe are guided and restrained through a circular ring, and the free end of the stay wire on the second winding component is connected with the box cover.
Further, the fit assembly comprises a traction rod inserted into the hollow shaft through a spring, a sliding groove is formed in the outer side of the hollow shaft, and a driving rod sliding in the sliding groove is fixedly arranged on the periphery of the traction rod;
the inner ring of the winding wheel is provided with a groove, and the driving rod is provided with a fitting block inserted into the groove.
Furthermore, the middle part of the fit block is provided with a guide groove, a guide post is fixedly arranged on the outer side of the hollow shaft, and the guide post is slidably connected in the guide groove.
Further, the engagement assembly further comprises:
the electromagnetic push rod is fixed above the control box;
The two shifting fork pieces are arranged on the outer sides of the control box in a rotating mode, and are used for being matched with hollow shafts of the first winding assembly and the second winding assembly;
The end part of the hollow shaft is provided with two steps, the shifting fork pieces are arranged in the two steps, and the rod ends of the electromagnetic push rods are abutted against the two shifting fork pieces through the plate to rotate.
Further, the padlock component comprises a hanging seat fixed on the upper end surface of the box cover, and a hanging piece is rotatably connected to the inner wall of the mask box through a fixing seat and a torsion spring;
The output end of the first driving piece is further provided with a threaded portion, the threaded portion is connected with a nut seat in a threaded mode, the outer side of the nut seat is rotationally connected with a sleeve, the inner side of the sleeve is movably inserted with an inserting block through a pressure spring, the outer side of the nut seat is at least provided with a slot matched with the inserting block, the inner side of the sleeve is also inserted with a push rod, the inserting direction of the push rod is perpendicular to the inserting direction of the inserting block, the end face of the push rod is provided with a V-shaped groove, the end face of the inserting block is provided with a guide shaft sliding in the V-shaped groove, the sleeve slides with the inner wall of the control box, the outer side of the hollow shaft is also provided with two limiting blocks used for abutting against the push rod, and a deflector rod positioned on one side of the hanging piece is arranged below the sleeve.
Further, the manual unlocking component comprises a poking piece which is arranged at the lower end of the hanging piece and is away from one side of the hook part of the hanging piece, a manual hole is formed in the lower portion of the box cover, and the poking piece is located right above the manual hole.
In addition, the invention also provides a control method of the cabin pressure relief and oxygen supply device, which uses the device, and comprises the following steps of;
S1, automatic release: when the pressure of the passenger cabin is released, the first driving piece drives the first winding assembly to release the mask, the threaded part on the first driving piece drives the nut seat to move, the nut seat drives the deflector rod to move and props against the hanging piece to rotate until the ejector rod props against the limiting block, the ejector rod drives the inserting block to move upwards to be separated from the nut seat through the V-shaped groove and the guide shaft, and no transmission occurs between the first driving piece and the sleeve, and meanwhile, the hanging piece is separated from the hanging seat;
s2, automatic recovery: when the oxygen mask is required to be automatically retracted after falling, the electromagnetic push rod is controlled to be opened by controlling the circuit conduction of the electromagnetic push rod, the electromagnetic push rod is abutted against the two shifting fork pieces to rotate through the plate, the two shifting fork pieces are respectively abutted against the traction rods on the first winding assembly and the second winding assembly to move, and at the moment, the traction rods push the fit blocks into the grooves of the winding wheels through the driving rods, so that circumferential locking of the hollow shaft and the winding wheels is completed;
The first driving piece drives the hollow shaft connected with the first driving piece to rotate, so that the winch wheel pulls each mask and recovers the mask into the mask box;
And then the second driving piece is started, the second driving piece drives the hollow shaft connected with the second driving piece to rotate, so that the corresponding winding wheel pulls and resets the box cover through the pull wire, when the box cover resets, the hanging seat on the box cover is clamped with the hanging piece, the resetting of the box cover is completed, after the resetting is completed, the electromagnetic push rod is powered off, the traction rod resets under the action of the spring, the engaging block is separated from the groove of the winding wheel, and the winding wheel is in a free state and is prepared for the next release.
Further, the method further comprises:
S1, manual release: because each winch wheel is in a free rotation state at the initial position, when manual release is needed, a user can hold a manual release tool, a cylinder of the manual release tool is inserted into a manual hole of an oxygen mask, the manual release tool touches a poking plate, the poking plate moves to drive a hanging plate to rotate, the hanging plate is separated from a hanging seat, under the action of gravity, a box cover rotates and is opened, and the oxygen mask naturally falls off under the action of gravity;
S2, manually retracting: the oxygen mask and the pull wire are folded and lifted to the bottom of the mask box by hands, the box cover is closed by hands, when the box cover is closed, the hanging seat of the box cover firstly props against the hanging piece to move, the hanging piece is reversely rotated and reset under the action of the torsion spring until the hanging piece is hung on the hanging seat of the box cover, and the box cover is closed.
The pressure-releasing and oxygen-supplying device and the control method for the passenger cabin provided by the invention have the beneficial effects that: the invention adopts the composition mode of the winding wheel and the stay wire to realize the recovery and release of the mask and the box cover, after the mask is used, the automatic traction recovery of the mask can be realized, the problem of interference between oxygen supply pipes of the mask caused by mutual accumulation and placement is effectively avoided, and meanwhile, the invention also configures a manual unlocking mode, so that the manual unlocking of the box cover can be realized when circuit components are damaged in emergency, and the safety of passengers is further ensured.
Drawings
FIG. 1 is a top view of the present invention;
FIG. 2 is a bottom view of the present invention;
FIG. 3 is a left side view of the present invention;
FIG. 4 is a schematic cross-sectional view of the structure of FIG. 1;
FIG. 5 is an enlarged schematic view of the area of FIG. 4;
FIG. 6 is a schematic cross-sectional view of the structure at B-B in FIG. 1;
Fig. 7 is a schematic view of the ejector rod structure of the present invention.
In the figure: 1. a control box; 11. a first winding assembly; 110. a spring; 111. a hollow shaft; 112. a winding wheel; 113. a traction rod; 114. a groove; 115. a fitting block; 116. a guide post; 117. an electromagnetic push rod; 118. a fork member; 119. a step; 13. a pull wire; 14. a circular ring; 12. a first driving member; 2. a mask box; 21. a face mask; 22. an oxygen supply pipe; 3. a box cover; 4. a control mechanism; 41. a padlock assembly; 411. a hanging seat; 412. hanging pieces; 413. a threaded portion; 414. a pulling piece; 415. a manual hole; 42. a second winding assembly; 43. a second driving member; 44. a nut seat; 441. a sleeve; 442. a pressure spring; 443. inserting blocks; 444. a push rod; 445. a V-shaped groove; 446. a guide shaft; 447. a limiting block; 448. a deflector rod.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
Referring to fig. 1-7, an embodiment of the present invention is disclosed, which comprises a control box 1, a mask box 2 disposed below the control box 1, and a box cover 3 rotatably connected below the mask box 2, wherein the box cover 3 is connected with the mask box 2 through a hinge, and the control box 1 is fixed with the mask box 2;
wherein at least one mask 21 is accommodated in the mask box 2, the control box 1 is provided with first winding assemblies 11 opposite to the number of the mask 21, and the oxygen supply pipe 22 of the mask 21 is folded and unfolded by the first winding assemblies 11, specifically, in the embodiment, a plurality of opposite through holes are arranged between the mask box 2 and the control box 1, and the through holes are used for providing space for the oxygen supply pipe 22 to pass up and down;
The first winding assembly 11 is driven by a first driving member 12, specifically, in this embodiment, the first driving member 12 is configured as a servo motor, the servo motor is fixedly installed on the outer side of the control box 1, the shaft end of the servo motor is fixed with a hollow shaft 111 of the first winding assembly 11 through a coupling, the mask box 2 is further provided with a control mechanism 4 for controlling the opening and closing of the box cover 3, and the mask box 2 is further provided with a manual unlocking assembly for triggering the unlocking of the control mechanism 4.
Referring to fig. 6, in some embodiments, the control mechanism 4 includes a padlock assembly 41 and a second winding assembly 42, wherein the second winding assembly 42 has the same structure as the first winding assembly 11, the second winding assembly 42 is driven by a second driving member 43, and as above, in the present embodiment, the second driving member 43 is also provided as a servo motor, and the servo motor is fixed to the outer side of the control box 1 and fixed to the hollow shaft 111 of the second winding assembly 42 by a coupling;
Specifically, the padlock assembly 41 is configured to lock and release the rotating box cover 3, and when released, the second winding assembly 42 may pull the box cover 3 to lower or pull the box cover 3 for resetting, and detailed operation will be described in detail later, which will not be described in any more detail herein.
Referring to fig. 4, on the basis of the above embodiment, the first winding assembly 11 in the embodiment of the present invention includes a hollow shaft 111 rotatably connected to the control box 1, one end of the hollow shaft 111 is rotatably installed in the control box 1 through a bearing, and the hollow shaft 111 is fixed to the first driving member 12;
The outer side of the hollow shaft 111 is rotatably connected with the winding wheels 112, however, in other embodiments, those skilled in the art will know that the number of the winding wheels 112 is the same as the number of the winding wheels 21, and the winding wheels 112 are disposed on the same hollow shaft 111;
Referring to fig. 4 and 5, a fitting assembly is further provided between the hollow shaft 111 and the winding wheel 112, and the fitting assembly is used for keeping the hollow shaft 111 and the winding wheel 112 locked in the circumferential direction;
Referring to fig. 5, a pull wire 13 is further disposed on the outer side of the winding wheel 112, the pull wire 13 on the first winding assembly 11 and the oxygen supply tube 22 are guided and restrained by the circular rings 14, the circular rings 14 are provided in plurality and are fixed with the oxygen supply tube 22 one by one, wherein the pull wire 13 is inserted into each circular ring 14 to realize traction on the oxygen supply tube 22, and in addition, the free end of the pull wire 13 on the second winding assembly 42 is connected with the box cover 3.
Referring to fig. 5, further, in some embodiments, the engaging assembly of the present invention includes a traction rod 113 inserted into the hollow shaft 111 through a spring 110, a ring piece is disposed in the hollow shaft 111, the traction rod 113 is inserted into the ring piece, and one end of the traction rod 113 penetrates through and extends to the outside of the control box 1, a sliding groove is formed at the outside of the hollow shaft 111, and a driving rod sliding in the sliding groove is fixedly mounted at the periphery of the traction rod 113;
Referring to fig. 4 and 5, a groove 114 is formed in the inner ring of the winding wheel 112, and a fitting block 115 inserted into the groove 114 is disposed on the driving rod, specifically, in this embodiment, the fitting block 115 may be designed as a wedge block or a friction plate, after the insertion, the inner wall of the groove 114 is tightly connected with the outer wall of the hollow shaft 111, so as to realize transmission, that is, when the first driving member 12 drives the hollow shaft 111 to rotate, the winding wheel 112 is driven to rotate by the transmission of the fitting block 115.
In more detail, in this embodiment, a guide groove is formed in the middle of the engaging block 115, and a guide post 116 is fixedly mounted on the outer side of the hollow shaft 111, and the guide post 116 is slidably connected to the guide groove.
Referring to fig. 1-3 and 6, still further, the engaging assembly of the present invention further comprises:
The electromagnetic push rod 117 is fixed above the control box 1, and the specific structure of the electromagnetic push rod is the prior art and is not repeated herein;
The two shifting fork members 118 are rotatably installed at the outer side of the control box 1, and the two shifting fork members 118 are used for being matched with the hollow shafts of the first winding assembly 11 and the second winding assembly 42; the two fork members 118 are respectively used for controlling the hollow shafts 111 on the first winding assembly 11 and the second winding assembly 42;
Wherein, there are two steps 119 at the end of the hollow shaft 111, a slot is formed between the two steps 119, the fork member 118 is disposed in the two steps 119, and the rod end of the electromagnetic push rod 117 abuts against the two fork members 118 to rotate through a plate.
Namely, when the shaft end of the electromagnetic push rod 117 drives the plate to move, the plate props against the two shifting fork members 118 to rotate, so that the driving movement of the traction rod 113 is realized;
Referring to fig. 6, the padlock assembly 41 includes a hanging seat 411 fixed on the upper end surface of the box cover 3, a hanging piece 412 is rotatably connected to the inner wall of the mask box 2 through a fixing seat and a torsion spring, and of course, the hanging piece 412 and the fixing seat rotate through a pin shaft, and the torsion spring is used for providing the reset capability of the hanging piece 412;
Referring to fig. 7, a threaded portion 413 is further disposed at the output end of the first driving member 12, a nut seat 44 is screwed on the threaded portion 413, a sleeve 441 is rotatably connected to the outer side of the nut seat 44, an insert 443 is movably inserted into the inner side of the sleeve 441 through a compression spring 442, at least one slot adapted to the insert 443 is disposed on the outer side of the nut seat 44, a push rod 444 is inserted into the inner side of the sleeve 441, the inserting direction of the push rod 444 is perpendicular to the inserting direction of the insert 443, a V-shaped groove 445 is formed on an end surface of the push rod 444, a guide shaft 446 sliding in the V-shaped groove 445 is formed on an end surface of the insert 443, the sleeve 441 slides with the inner wall of the control box 1, specifically, in this embodiment, a guide rod is disposed on the inner wall of the control box 1 and slidably connected with the sleeve 441 to ensure that the sleeve 441 does not rotate along with the nut seat 44 and keeps moving linearly;
Two limiting blocks 447 for abutting against the push rod 444 are further arranged on the outer side of the hollow shaft 111, a deflector rod 448 located on one side of the hanging piece 412 is arranged below the sleeve 441, and a sliding way is further arranged between the mask box 2 and the control box 1 in order to provide a sliding space of the deflector rod 448, and the deflector rod 448 slides in the sliding way.
That is, in the present invention, when the first driving member 12 rotates, the threaded portion 413 drives the nut seat 44 to move, which is limited by the insert 443, so that the nut seat 44 drives the sleeve 441 to move, and in the moving process, the shift lever 448 at the bottom of the sleeve 441 contacts the hanging piece 412 to unlock the box cover 3, so as to realize automatic unlocking operation in the automatic releasing process, and the movement is consistent and consistent without adding additional driving equipment, after that, when the push rod 444 on the sleeve 441 contacts the limiting block 447, the push rod 444 drives the insert 443 to move upwards through the V-shaped groove 445 and the guide shaft 446, so as to realize transmission separation between the sleeve 441 and the nut seat 44, namely, after that, when the first driving member 12 drives the first winding assembly 11 to rotate, the nut seat 44 also does not move forward continuously, and similarly, when the mask 21 is recovered, the nut seat 44 moves backwards a certain distance to realize resetting operation, and the whole structure is simple, and the practicability is strong.
Referring to fig. 2 and 6, in some embodiments, considering the possibility of manual unlocking, the manual unlocking assembly includes a pulling piece 414 installed at the lower end of the hanging piece 412 and away from one side of the hook portion thereof, a manual hole 415 is provided below the box cover 3, the pulling piece 414 is located right above the manual hole 415, the manual hole 415 may be designed as a round hole, when unlocking is required, a cylindrical unlocking tool is inserted into the manual hole 415, and the end portion of the unlocking tool abuts against the pulling piece 414 to rotate, so that the hanging piece 412 is separated from the hanging seat 411, and unlocking is achieved.
In addition, the invention also provides a control method of the cabin pressure relief and oxygen supply device, which uses the device, and comprises the following steps of;
S1, automatic release: when the passenger cabin releases pressure, the first driving member 12 drives the first winding assembly 11 to release the mask 21, the threaded portion 413 on the first driving member 12 drives the nut seat 44 to move, the nut seat 44 drives the deflector rod 448 to move and props against the hanging piece 412 to rotate until the ejector rod 444 props against the limiting block 447, the ejector rod 444 drives the inserting block 443 to move upwards to separate from the nut seat 44 through the V-shaped groove 445 and the guide shaft 446, no transmission occurs between the first driving member 12 and the sleeve 441, and meanwhile, the hanging piece 412 is separated from the hanging seat 411, and in this state, the engaging block 115 is not inserted into the groove 114 of the winding wheel 112, so that the winding wheels 112 of the first winding assembly 11 and the second winding assembly 42 can rotate freely, namely, the box cover 3 rotates to be opened under the action of gravity, and the mask 21 naturally falls under the action of gravity;
s2, automatic recovery: when the oxygen mask 21 needs to be automatically retracted after falling off, the electromagnetic push rod 117 is controlled to be opened by controlling the circuit conduction of the electromagnetic push rod 117, as above, in the embodiment, the electromagnetic push rod 117 can also be controlled by adopting a button switch connection mode, the electromagnetic push rod 117 props against the two shifting fork members 118 to rotate through the plate, the two shifting fork members 118 respectively prop against the traction rods 113 on the first winding assembly 11 and the second winding assembly 42 to move, at the moment, the traction rods 113 push the engaging blocks 115 into the grooves 114 of the winding wheels 112 through the driving rods, and the circumferential locking of the hollow shaft 111 and the winding wheels 112 is completed;
After that, the hollow shaft 111 connected with the first driving piece 12 is driven to rotate, so that the winch wheel 112 pulls each mask 21 and recovers the mask box 2;
And then the second driving piece 43 is started, the second driving piece 43 drives the hollow shaft 111 connected with the second driving piece to rotate, so that the corresponding winding wheel 112 pulls and resets the box cover 3 through the stay wire 13, when the box cover 3 resets, the hanging seat 411 on the box cover 3 is clamped with the hanging piece 412, the resetting of the box cover 3 is completed, after the resetting is completed, the electromagnetic push rod 117 is powered off, the traction rod 113 resets under the action of the spring 110, the engaging block 115 is separated from the groove 114 of the winding wheel 112, and the winding wheel 112 is in a free state and is ready for the next release.
In addition, in this embodiment, the first driving member 12 and the second driving member 43 can be both externally connected with a PLC for control, and the first driving member 12 and the second driving member 43 are both servo motors, so that when the servo motors rotate, the rotation speed and time of the servo motors are synchronously transmitted to the PLC, the PLC automatically calculates the working time according to the maximum expansion length of the pull wire 13, and combines the diameter of the winch, the rotation speed and time of the servo motors, and the mask 21 is pulled by the pull wire 13 and moved into the mask box 2, and at this time, the servo motors stop rotating to achieve the automatic control effect.
Also, in an embodiment of the present invention, the method further includes:
S1, manual release: because each winding wheel 112 is in a free rotation state at the initial position, when manual release is needed, a user can hold a manual release tool, a cylinder of the manual release tool is inserted into a manual hole 415 of the oxygen mask 21, the manual release tool touches a poking plate 414, the poking plate 414 moves to drive the hanging plate 412 to rotate, the hanging plate 412 is separated from the hanging seat 411, under the action of gravity, the box cover 3 rotates and is opened, and the oxygen mask 21 naturally falls off under the action of gravity;
S2, manually retracting: the oxygen mask 21 and the pull wire 13 are folded and lifted to the bottom of the mask box 2 by hands, the box cover 3 is closed by hands, when the box cover 3 is closed, the hanging seat 411 of the box cover 3 firstly props against the hanging piece 412 to move, and the hanging piece 412 is reversely rotated and reset under the action of the torsion spring until the oxygen mask is hung on the hanging seat 411 of the box cover 3, and the box cover 3 is closed.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (6)
1. A pressure and oxygen supply device for a passenger cabin, which is characterized in that; comprises a control box, a mask box arranged below the control box and a box cover rotatably connected below the mask box;
Wherein at least one mask is accommodated in the mask box, a first winding assembly which is opposite to the number of the masks is arranged in the control box, and an oxygen supply pipe of the mask is unfolded and folded through the first winding assembly;
the first winding assembly is driven by a first driving piece, a control mechanism for controlling the opening and closing of the box cover is further arranged in the mask box, and a manual unlocking assembly for triggering the control mechanism to unlock is further arranged on the mask box;
The control mechanism comprises a padlock component and a second winding component, wherein the second winding component has the same structure as the first winding component, and is driven by a second driving piece; the first winding assembly comprises a hollow shaft rotatably connected in the control box, and the hollow shaft is fixed with the first driving piece;
the outer side of the hollow shaft is rotatably connected with a hoisting wheel, and a fit assembly is further arranged between the hollow shaft and the hoisting wheel and used for keeping the hollow shaft and the hoisting wheel locked in the circumferential direction;
The outer side of the winding wheel is also provided with a stay wire, the stay wire on the first winding assembly and the oxygen supply pipe are guided and restrained through a circular ring, and the free end of the stay wire on the second winding assembly is connected with the box cover;
The fit assembly comprises a traction rod which is inserted into the hollow shaft through a spring, a sliding groove is formed in the outer side of the hollow shaft, and a driving rod which slides in the sliding groove is fixedly arranged on the periphery of the traction rod;
the inner ring of the winch wheel is provided with a groove, and the driving rod is provided with a fitting block inserted into the groove;
The engagement assembly further includes:
the electromagnetic push rod is fixed above the control box;
The two shifting fork pieces are arranged on the outer sides of the control box in a rotating mode, and are used for being matched with hollow shafts of the first winding assembly and the second winding assembly;
The end part of the hollow shaft is provided with two steps, the shifting fork pieces are arranged in the two steps, and the rod ends of the electromagnetic push rods are abutted against the two shifting fork pieces through the plate to rotate.
2. The cabin pressure relief and oxygen supply device of claim 1, wherein: the middle part of the fit block is provided with a guide groove, a guide post is fixedly arranged on the outer side of the hollow shaft, and the guide post is slidably connected in the guide groove.
3. The cabin pressure relief and oxygen supply device of claim 1, wherein: the padlock component comprises a hanging seat fixed on the upper end surface of the box cover, and a hanging piece is rotationally connected to the inner wall of the mask box through a fixed seat and a torsion spring;
The output end of the first driving piece is further provided with a threaded portion, the threaded portion is connected with a nut seat in a threaded mode, the outer side of the nut seat is rotationally connected with a sleeve, the inner side of the sleeve is movably inserted with an inserting block through a pressure spring, the outer side of the nut seat is at least provided with a slot matched with the inserting block, the inner side of the sleeve is also inserted with a push rod, the inserting direction of the push rod is perpendicular to the inserting direction of the inserting block, the end face of the push rod is provided with a V-shaped groove, the end face of the inserting block is provided with a guide shaft sliding in the V-shaped groove, the sleeve slides with the inner wall of the control box, the outer side of the hollow shaft is also provided with two limiting blocks used for abutting against the push rod, and a deflector rod positioned on one side of the hanging piece is arranged below the sleeve.
4. A cabin pressure relief and oxygen supply device as claimed in claim 3, wherein: the manual unlocking component comprises a poking piece which is arranged at the lower end of the hanging piece and is away from one side of the hook part of the hanging piece, a manual hole is formed in the lower portion of the box cover, and the poking piece is located right above the manual hole.
5. A method of controlling a cabin pressure relief and oxygen supply apparatus using the apparatus of any one of claims 1-4, the method comprising the steps of;
S1, automatic release: when the pressure of the passenger cabin is released, the first driving piece drives the first winding assembly to release the mask, the threaded part on the first driving piece drives the nut seat to move, the nut seat drives the deflector rod to move and props against the hanging piece to rotate until the ejector rod props against the limiting block, the ejector rod drives the inserting block to move upwards to be separated from the nut seat through the V-shaped groove and the guide shaft, and no transmission occurs between the first driving piece and the sleeve, and meanwhile, the hanging piece is separated from the hanging seat;
s2, automatic recovery: when the oxygen mask is required to be automatically retracted after falling, the electromagnetic push rod is controlled to be opened by controlling the circuit conduction of the electromagnetic push rod, the electromagnetic push rod is abutted against the two shifting fork pieces to rotate through the plate, the two shifting fork pieces are respectively abutted against the traction rods on the first winding assembly and the second winding assembly to move, and at the moment, the traction rods push the fit blocks into the grooves of the winding wheels through the driving rods, so that circumferential locking of the hollow shaft and the winding wheels is completed;
The first driving piece drives the hollow shaft connected with the first driving piece to rotate, so that the winch wheel pulls each mask and recovers the mask into the mask box;
And then the second driving piece is started, the second driving piece drives the hollow shaft connected with the second driving piece to rotate, so that the corresponding winding wheel pulls and resets the box cover through the pull wire, when the box cover resets, the hanging seat on the box cover is clamped with the hanging piece, the resetting of the box cover is completed, after the resetting is completed, the electromagnetic push rod is powered off, the traction rod resets under the action of the spring, the engaging block is separated from the groove of the winding wheel, and the winding wheel is in a free state and is prepared for the next release.
6. The control method of a cabin pressure relief and oxygen supply device according to claim 5, wherein: the method further comprises the steps of:
S1, manual release: because each winch wheel is in a free rotation state at the initial position, when manual release is needed, a user can hold a manual release tool, a cylinder of the manual release tool is inserted into a manual hole of an oxygen mask, the manual release tool touches a poking plate, the poking plate moves to drive a hanging plate to rotate, the hanging plate is separated from a hanging seat, under the action of gravity, a box cover rotates and is opened, and the oxygen mask naturally falls off under the action of gravity;
S2, manually retracting: the oxygen mask and the pull wire are folded and lifted to the bottom of the mask box by hands, the box cover is closed by hands, when the box cover is closed, the hanging seat of the box cover firstly props against the hanging piece to move, the hanging piece is reversely rotated and reset under the action of the torsion spring until the hanging piece is hung on the hanging seat of the box cover, and the box cover is closed.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310929335.0A CN117048833B (en) | 2023-07-27 | 2023-07-27 | Pressure-releasing oxygen-supplying device for passenger cabin and control method |
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| CN202310929335.0A CN117048833B (en) | 2023-07-27 | 2023-07-27 | Pressure-releasing oxygen-supplying device for passenger cabin and control method |
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| CN117048833A CN117048833A (en) | 2023-11-14 |
| CN117048833B true CN117048833B (en) | 2024-04-19 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101107165A (en) * | 2005-01-13 | 2008-01-16 | 阿沃克斯***股份有限公司 | Apparatus for deploying oxygen masks |
| CN103625643A (en) * | 2012-06-28 | 2014-03-12 | 联合技术公司 | Emergency oxygen device, oxygen supply system and method for activating an emergency oxygen device for at least one passenger of an aircraft |
| CN206719559U (en) * | 2017-05-17 | 2017-12-08 | 西安翔辉机电科技有限责任公司 | A kind of oxygen mask comes off retracting device |
| CN108657441A (en) * | 2017-03-27 | 2018-10-16 | B/E航空***有限公司 | It is the system of passenger's Emergency Oxygen Supply aboard |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102017125460B4 (en) * | 2017-10-30 | 2022-11-24 | Airbus Operations Gmbh | Device for providing oxygen masks as needed |
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- 2023-07-27 CN CN202310929335.0A patent/CN117048833B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101107165A (en) * | 2005-01-13 | 2008-01-16 | 阿沃克斯***股份有限公司 | Apparatus for deploying oxygen masks |
| CN103625643A (en) * | 2012-06-28 | 2014-03-12 | 联合技术公司 | Emergency oxygen device, oxygen supply system and method for activating an emergency oxygen device for at least one passenger of an aircraft |
| CN108657441A (en) * | 2017-03-27 | 2018-10-16 | B/E航空***有限公司 | It is the system of passenger's Emergency Oxygen Supply aboard |
| CN206719559U (en) * | 2017-05-17 | 2017-12-08 | 西安翔辉机电科技有限责任公司 | A kind of oxygen mask comes off retracting device |
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| CN117048833A (en) | 2023-11-14 |
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