CN114962231B - Pressure sensing inflation device and method - Google Patents

Abstract

The invention relates to the technical field of life raft accessories, in particular to a pressure induction inflating device, wherein a driving motor is embedded into the front end of the interior of a sealing cover casing, an inflating trigger mechanism is arranged at the position, behind the driving motor, of the interior of the sealing cover casing, two air storage boxes are arranged at the position, behind the inflating trigger mechanism, of the interior of the sealing cover casing in a bilateral symmetry mode in a fixed connection mode, two single-cylinder air compressors are arranged at the position, behind the air storage boxes, of the interior of the sealing cover casing in a bilateral symmetry mode in a fixed installation mode, and a gas auxiliary mechanism is arranged at the position, behind the single-cylinder air compressors, of the interior of the sealing cover casing. Through the setting of inflating trigger mechanism, can adjust the driven pressure disk of installing different quantity response spring as trigger device according to life raft size's difference, degree of depth when can adjusting automatic charging through the setting of gaseous complementary unit, can filter the oil vapour of mixing at compressed air.

Description

Pressure sensing inflation device and method

Technical Field

The invention relates to the technical field of life raft accessories, in particular to a pressure sensing inflation device and a pressure sensing inflation method.

Background

The pressure sensing inflating device is an inflating accessory of the life raft, mainly comprises an air source, an air supply pipeline, an inflating triggering assembly, a starting assembly and the like, has the functions of storing and releasing high-pressure air and ensuring that a main life raft is inflated and formed according to the use requirement, mechanical parameters, sizes and corresponding precision of a pressure sensing spring are main influence factors for starting the pressure sensing inflating system, the sizes and the mechanical properties of all stressed elements are determined through mechanical calculation and simulation analysis, and the pressure sensing inflating device is ensured not to be triggered when the water depth exceeds a certain depth and can reliably trigger automatic inflation when the water depth is less than the certain depth.

However, the mechanical parameters and the size of the induction spring installed inside cannot be adjusted, the water depth required to trigger automatic inflation is different when different tasks are executed or the sizes of the life rafts are different, and inflammable substances which are mixed in compressed air and possibly accumulated in the air storage tank, the pipeline and the accommodating cavity of the pneumatic element form an explosive risk; in addition, the lubricating oil is vaporized to form organic acid, so that the inner surfaces of pneumatic elements and pipelines are corroded and rusted, and the service life of the pneumatic elements and the pipelines is influenced.

Disclosure of Invention

In order to solve the above technical problems, the present invention provides a pressure-sensing inflator and a method thereof, which are achieved by the following specific technical means:

the utility model provides a forced induction aerating device, including the seal housing, the front surface fixedly connected with life raft container of seal housing, and the inside front end embedding of seal housing installs driving motor, the inside rear position department that is located driving motor of seal housing is provided with aerifys trigger mechanism, the inside rear position department that is located aerifing trigger mechanism of seal housing is provided with two gastanks through fixed connection mode bilateral symmetry, and the inside rear position department that is located the gastank of seal housing is provided with two single cylinder air compressors through fixed mounting mode bilateral symmetry, the inside rear position department that is located the single cylinder air compressor of seal housing is provided with gaseous complementary unit, the gastank is connected with the single cylinder air compressor through the pipeline, the single cylinder air compressor is connected with gaseous complementary unit through the pipeline.

Preferably: the sealing strip is sleeved on the outer side surface of the sealing cover shell, the through hole is formed in the surface of the sealing strip, the sealing strip and the induction air bag are located on the same horizontal line, when the sealing strip is rotated to the upper side, the sealing strip seals the inflation trigger mechanism, and when the through hole in the surface of the sealing strip is rotated to the left side, seawater and the inflation trigger mechanism are in contact.

Preferably: the rear end fixedly connected with drive shaft of driving motor, the rear end fixedly connected with action wheel of drive shaft.

Preferably: aerify trigger mechanism including adjusting the carousel, the regulating spindle, driven pressure disk, induction spring, driven depression bar, the trigger guide arm, the mount pad, the response gasbag, the initiative depression bar, a power supply, the trigger pipe, the right side fixedly connected with regulating spindle of regulation carousel, the right side fixedly connected with mount pad of regulating spindle, the left side fixed surface of mount pad is connected with induction spring, the terminal fixedly connected with driven pressure disk in left side of induction spring, the right side surface outside edge fixedly connected with driven depression bar of driven pressure disk, driven depression bar's left side is provided with the response gasbag, and driven depression bar's below is provided with the power, the inside slidable mounting of response gasbag has the initiative depression bar, the upper end fixedly connected with trigger guide arm of power, trigger pipe has been cup jointed on trigger guide arm's right side, the inside embedding of trigger pipe is installed the resistance wire, the left side of resistance wire is connected with driving motor's input through the wire, when water pressure is greater than trigger water pressure, the circuit passes through the distance of resistance wire longest, the electric current is minimum, driving motor does not start, when whole come up to suitable height, water pressure diminishes, the initiative depression bar resets left, induction spring also drives driven pressure plate and resets left, reset spring on trigger guide arm right side, the shortest distance of circuit is also, this moment, the shortest distance of driving motor is the shortest.

Preferably: adjust the left side surface of carousel and pass sealed housing rather than swing joint, the right side of driven pressure disk runs through mount pad and sliding connection, rotate and adjust the carousel, can rotate driven pressure disk, the quantity of driven pressure disk is five, even distribution is in the outside of regulating spindle, the quantity of driven pressure disk right side surface induction spring is different, in proper order one to five, when initiative depression bar removes to the right side, only can extrude the driven pressure disk rather than the laminating, rotate through adjusting, the driven pressure disk that makes to install different quantity induction spring rotates to the position of laminating mutually with the initiative depression bar, then adjust holistic water pressure that triggers, make the life raft that its adaptation is different.

Preferably: gaseous complementary unit includes the filter chamber, the oil film filter layer, the filter screen, filtering baffle, spiral air chamber and connection trachea, two filtering baffle are installed through fixed connection mode bilateral symmetry in the inside of filter chamber, and two filter screens are installed through fixed connection mode bilateral symmetry in the inside of filter chamber, the inside intermediate position department fixedly connected with oil film filter layer of filter chamber, the rear end fixedly connected with spiral air chamber of filter chamber, the both sides fixed surface of spiral air chamber is connected with the trachea, the oil film filter layer is located two filtering baffle intermediate position departments, the filter screen is located two filtering baffle's both sides, the air current gets into the guide of back through filtering baffle earlier through the oil film filter layer behind the filter screen.

Preferably: the spiral auger is fixedly arranged inside the spiral air chamber, the filter layers are embedded into two sides of the spiral air chamber, the top end of the spiral air chamber is connected with the rear end of the filter chamber through the air pipe, the air enters the spiral auger and rotates inside the spiral air chamber, the connecting air pipe is positioned outside the filter layers, the rotating air passes through the filter layers through centrifugal force and then enters the connecting air pipe, and impurities are left inside the spiral air chamber.

In addition, the invention also provides a using method of the pressure sensing inflating device, which comprises the following steps:

s1: rotating the adjusting rotary disc according to the size of the life raft to drive the adjusting shaft, the driven pressure discs and the mounting seat to rotate, rotatably selecting proper driven pressure discs to be positioned on the right side of the induction air bag, and then rotating the sealing belt to enable the through holes on the surface of the sealing belt to be positioned on the left side of the induction air bag;

s2: the whole equipment is released, the equipment starts to float upwards, seawater pressure passes through a through hole on the surface of a sealing strip and starts to extrude an induction air bag, the induction air bag extrudes gas in the induction air bag to push a driving pressure rod inwards when water pressure is high and starts water pressure, then the driving pressure rod pushes a driven pressure rod inwards, the tail end of the driven pressure rod pushes a trigger guide rod inwards to enable the trigger guide rod to be located at the innermost side of a trigger tube, a resistance wire is embedded and installed in the trigger tube, the left side of the resistance wire is connected with the input end of a driving motor through a lead, the distance of the resistance wire passed by a circuit is longest at the moment, the current is minimum, and the driving motor is not started;

s3: when the whole body floats to a proper height, the water pressure is reduced, the driving pressure rod resets leftwards, the induction spring also drives the driven pressure plate to reset leftwards, the reset spring on the right side of the trigger guide rod also drives the driven pressure plate to synchronously reset leftwards, the distance of the resistance wire passed by the circuit is shortest at the moment, the current is largest, and the driving motor starts;

s4: the driving motor drives the driving wheel to rotate, the surface of the driving wheel is connected with the driving wheel of the single-cylinder air compressor through the conveying belt, then the single-cylinder air compressor is driven to start, and the gas in the gas storage tank is transmitted to the interior of the life raft container through the gas auxiliary mechanism to be rapidly inflated;

s5: the air flow enters the life raft container, then passes through the filter screens on the two sides to filter particles, then passes through the filter chambers to primarily filter oil vapor, the filtered gas enters the spiral air chamber, rotates through the spiral auger inside, passes through the filter layers on the two sides through centrifugal force to be filtered again, and then enters the connecting air pipe.

Compared with the prior art, the invention has the following beneficial effects:

1. according to the pressure sensing inflating device and method, the driven pressure plates provided with different numbers of sensing springs can be adjusted according to different sizes of the life raft to serve as the triggering devices through the arrangement of the inflating triggering mechanism, and the depth of the life raft during automatic inflation can be adjusted.

2. According to the pressure sensing inflation device and the method, the oil gas mixed in the compressed air can be filtered through the arrangement of the gas auxiliary mechanism, the phenomenon that the device is gathered in the containing cavities of the gas storage tank, the pipeline and the pneumatic element to form inflammable matters is avoided, the explosion danger is caused, the corrosion and the rust of the inner surfaces of the pneumatic element and the pipeline are delayed, and the service life of the device is prolonged.

Drawings

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a cross-sectional view of the internal structure of the sealed housing of the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 1 according to the present invention;

FIG. 4 is a schematic view of the inflation trigger mechanism of the present invention;

FIG. 5 is a perspective view of a portion of the mounting base of the present invention;

FIG. 6 is a side view of the structure of FIG. 5 in accordance with the present invention;

FIG. 7 isbase:Sub>A cross-sectional view A-A of FIG. 6 according to the present invention;

FIG. 8 is a cross-sectional view of the gas assist mechanism of the present invention;

figure 9 is a schematic perspective view of the internal structure of the filtering chamber according to the present invention;

FIG. 10 is a cross-sectional view of a spiral plenum of the present invention.

In the figure: 1. sealing the housing; 11. sealing tape; 2. a life raft container; 3. a drive motor; 31. a drive shaft; 32. a driving wheel; 4. an inflation trigger mechanism; 41. adjusting the turntable; 42. an adjustment shaft; 421. a driven platen; 422. an induction spring; 423. a driven pressure lever; 424. triggering the guide rod; 43. a mounting seat; 44. sensing an air bag; 441. an active compression bar; 45. a power source; 46. a trigger tube; 5. a gas storage tank; 6. a single-cylinder air compressor; 7. a gas assist mechanism; 71. a filtering chamber; 711. an oil film filtering layer; 712. a filter screen; 713. a filtering baffle; 72. a spiral air chamber; 73. is connected with an air pipe.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 and 2, a pressure sensing inflation device comprises a sealing housing 1, a life raft container 2 is fixedly connected to the front surface of the sealing housing 1, a driving motor 3 is embedded into the front end of the inside of the sealing housing 1, an inflation trigger mechanism 4 is arranged at the position, behind the driving motor 3, of the inside of the sealing housing 1, two air storage tanks 5 are arranged at the position, behind the inflation trigger mechanism 4, of the inside of the sealing housing 1 in a bilateral symmetry mode in a fixed connection mode, two single-cylinder air compressors 6 are arranged at the position, behind the single-cylinder air compressors 6, of the inside of the sealing housing 1 in a bilateral symmetry mode in a fixed installation mode, a gas auxiliary mechanism 7 is arranged at the position, behind the single-cylinder air compressors 6, of the air storage tanks 5 are connected with the single-cylinder air compressors 6 through pipelines, and the single-cylinder air compressors 6 are connected with the gas auxiliary mechanism 7 through pipelines.

Referring to fig. 1 and 3, a sealing tape 11 is sleeved on the outer side surface of the sealing cover 1, a through hole is formed in the surface of the sealing tape 11, the sealing tape 11 and the sensing airbag 44 are located on the same horizontal line, when the sealing tape 11 is rotated to the upper side, the sealing tape 11 seals the inflation trigger mechanism 4, and when the through hole in the surface of the sealing tape 11 and the left side are rotated, seawater is in contact with the inflation trigger mechanism 4.

Referring to fig. 2, a driving shaft 31 is fixedly connected to a rear end of the driving motor 3, a driving wheel 32 is fixedly connected to a rear end of the driving shaft 31, and the driving wheel 32 is connected to a driving wheel of the single-cylinder air compressor 6 through a belt.

Referring to fig. 4, 5, 6 and 7, the inflation trigger mechanism 4 includes an adjusting turntable 41, an adjusting shaft 42, a driven platen 421, an induction spring 422, a driven compression bar 423, a trigger guide rod 424, a mounting seat 43, an induction air bag 44, a driving compression bar 441, a power supply 45 and a trigger pipe 46, the right side of the adjusting turntable 41 is fixedly connected with the adjusting shaft 42, the right side of the adjusting shaft 42 is fixedly connected with the mounting seat 43, the left side surface of the mounting seat 43 is fixedly connected with the induction spring 422, the left end of the induction spring 422 is fixedly connected with the driven platen 421, the outer edge of the right side surface of the driven platen 421 is fixedly connected with the driven compression bar 423, the left side of the driven compression bar 423 is provided with the induction air bag 44, and the power supply 45 is arranged below the driven compression bar 423, inside slidable mounting of response gasbag 44 has initiative depression bar 441, the upper end fixedly connected with of power 45 triggers guide arm 424, trigger tube 46 has been cup jointed on trigger tube 424's right side, the resistance wire is installed to trigger tube 46's inside embedding, the left side of resistance wire is connected with driving motor 3's input through the wire, when water pressure is greater than trigger water pressure, the distance of circuit process resistance wire is the longest, the electric current is the minimum, driving motor 3 does not start, when whole come-up to suitable height, water pressure diminishes, initiative depression bar 441 resets left, induction spring 422 also drives driven pressure disk 421 and resets left simultaneously, the reset spring that triggers guide arm 424 right side also drives its synchronous left, the distance of circuit process resistance wire is the shortest this moment, the electric current is the biggest, driving motor 3 starts.

Referring to fig. 4, 5, 6 and 7, the left side surface of the adjusting rotary disc 41 penetrates through the sealing cover case 1 to be movably connected with the sealing cover case, the right side of the driven pressure lever 423 penetrates through the mounting seat 43 to be slidably connected with the mounting seat, the adjusting rotary disc 41 is rotated to rotate the driven pressure discs 421, the number of the driven pressure discs 421 is five, the driven pressure discs are uniformly distributed on the outer side of the adjusting shaft 42, the number of the sensing springs 422 on the right side surface of the driven pressure discs 421 is one to five, when the driving pressure lever 441 moves towards the right side, only the driven pressure discs 421 attached to the driving pressure lever are pressed, the driven pressure discs 421 provided with the sensing springs 422 in different numbers are rotated to the position attached to the driving pressure lever 441 through adjusting rotation, and then the whole trigger water pressure is adjusted to be adapted to different life rafts.

Referring to fig. 8, 9 and 10, the gas assist mechanism 7 includes a filter chamber 71, an oil film filter layer 711, a filter net 712, filter baffles 713, a spiral air chamber 72 and a connecting air pipe 73, wherein two filter baffles 713 are installed inside the filter chamber 71 in a bilateral symmetry manner in a fixed connection manner, two filter nets 712 are installed inside the filter chamber 71 in a bilateral symmetry manner in a fixed connection manner, the oil film filter layer 711 is fixedly connected to the middle position inside the filter chamber 71, the spiral air chamber 72 is fixedly connected to the rear end of the filter chamber 71, the connecting air pipe 73 is fixedly connected to the surfaces of the two sides of the spiral air chamber 72, the oil film filter layer 711 is located at the middle position between the two filter baffles 713, the filter nets 712 are located at the two sides of the two filter baffles 713, and the air flow is guided by the filter baffles 713 and then passes through the oil film filter layer 711.

Referring to fig. 10, a spiral auger is fixedly installed inside the spiral air chamber 72, a filter layer is embedded in two sides of the spiral air chamber 72, the top end of the spiral air chamber 72 is connected with the rear end of the filter chamber 71 through an air pipe, the air is rotated inside the spiral auger after entering the spiral air chamber, the connecting air pipe 73 is located outside the filter layer, the rotated air passes through the filter layer through a centrifugal force and then enters the connecting air pipe 73, and impurities are left inside the spiral air chamber 72.

In addition, the invention also provides a using method of the pressure sensing inflating device, which comprises the following steps:

s1: rotating the adjusting turntable 41 according to the size of the life raft to drive the adjusting shaft 42, the driven pressure plate 421 and the mounting seat 43 to rotate, selecting a proper driven pressure plate 421 to be positioned at the right side of the induction air bag 44 by rotation, and then rotating the sealing tape 11 to enable the through hole on the surface of the sealing tape to be positioned at the left side of the induction air bag 44;

s2: releasing the whole equipment, starting floating up the equipment, enabling seawater pressure to penetrate through a through hole in the surface of the sealing belt 11 to start extruding the sensing air bag 44, enabling the sensing air bag 44 to extrude gas in the sensing air bag 44 to push the driving pressure rod 441 inwards when the water pressure is high and the water pressure is started, enabling the driving pressure rod 441 to push the driven pressure rod 423 inwards, enabling the tail end of the driven pressure rod 423 to push the trigger guide rod 424 inwards to enable the trigger guide rod 424 to be located on the innermost side of the trigger tube 46, enabling a resistance wire to be embedded in the trigger tube 46, enabling the left side of the resistance wire to be connected with the input end of the driving motor 3 through a lead, enabling the distance of the resistance wire passing through a circuit to be longest and enabling the current to be minimum, and enabling the driving motor 3 not to be started;

s3: when the whole body floats to a proper height, the water pressure is reduced, the driving pressure rod 441 resets leftwards, the induction spring 422 also drives the driven pressure plate 421 to reset leftwards, the reset spring on the right side of the trigger guide rod 424 also drives the driven pressure plate to synchronously reset leftwards, the distance of the resistance wire passed by the circuit is shortest, the current is largest, and the driving motor 3 is started;

s4: the driving motor 3 drives the driving wheel 32 to rotate, the surface of the driving wheel 32 is connected with the driving wheel of the single-cylinder air compressor 6 through the conveying belt, then the single-cylinder air compressor 6 is driven to start, and the gas in the gas storage tank 5 is conveyed to the interior of the life raft container 2 through the gas auxiliary mechanism 7 to be rapidly inflated;

s5: the air flow enters and is filtered by the filter screens 712 at the two sides, then the oil gas is primarily filtered by the filter chamber 71, the filtered air enters the spiral air chamber 72, rotates by the spiral auger inside, passes through the filter layers at the two sides by centrifugal force, is filtered again, enters the connecting air pipe 73 and is input into the life raft container 2.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. A pressure-sensitive inflation device comprising a sealed enclosure (1), characterized in that: the life raft is characterized in that a life raft container (2) is fixedly connected to the front surface of the sealing housing (1), a driving motor (3) is embedded into the front end of the interior of the sealing housing (1), an inflation trigger mechanism (4) is arranged in the interior of the sealing housing (1) and is located behind the driving motor (3), two gas storage tanks (5) are arranged in the interior of the sealing housing (1) and are bilaterally symmetrical in a fixed connection mode at the rear position of the inflation trigger mechanism (4), two single-cylinder air compressors (6) are arranged in the interior of the sealing housing (1) and are bilaterally symmetrical in a fixed installation mode at the rear position of the gas storage tanks (5), and a gas auxiliary mechanism (7) is arranged in the interior of the sealing housing (1) and is located behind the single-cylinder air compressors (6);

the gas auxiliary mechanism (7) comprises a filter chamber (71), an oil film filter layer (711), a filter screen (712), a filter baffle (713), a spiral gas chamber (72) and a connecting gas pipe (73);

aerify trigger mechanism (4) including adjusting carousel (41), regulating spindle (42), driven pressure disk (421), response spring (422), driven depression bar (423), trigger guide arm (424), mount pad (43), response gasbag (44), initiative depression bar (441), power (45), trigger tube (46), the right side fixedly connected with regulating spindle (42) of adjusting carousel (41), the right side fixedly connected with mount pad (43) of regulating spindle (42), the left side fixed surface of mount pad (43) is connected with response spring (422), the terminal fixedly connected with driven pressure disk (421) in left side of response spring (422), the right side outside surface edge fixedly connected with driven depression bar (423) of driven pressure disk (421), the left side of driven depression bar (423) is provided with response gasbag (44), and is provided with power (45) below driven depression bar (423), the inside slidable mounting of response gasbag (44) has initiative depression bar (441), the upper end fixedly connected with of power (45) triggers guide arm (424), trigger tube (46) has been cup jointed on the right side of triggering guide arm (424).

2. A pressure sensitive inflator according to claim 1 wherein: the outer side surface of the sealing cover shell (1) is sleeved with a sealing strip (11), the surface of the sealing strip (11) is provided with a through hole, and the sealing strip (11) and the induction air bag (44) are located on the same horizontal line.

3. A pressure sensitive inflator according to claim 1 wherein: the rear end fixedly connected with drive shaft (31) of driving motor (3), the rear end fixedly connected with action wheel (32) of drive shaft (31).

4. A pressure sensitive inflator according to claim 1 wherein: the left side surface of the adjusting turntable (41) penetrates through the sealing cover shell (1) to be movably connected with the sealing cover shell, and the right side of the driven pressure lever (423) penetrates through the mounting seat (43) to be in sliding connection with the driven pressure lever.

5. A pressure sensitive inflator according to claim 1 wherein: two filtering baffle (713) are installed through fixed connection mode bilateral symmetry in the inside of filter chamber (71), and two filter screens (712) are installed through fixed connection mode bilateral symmetry in the inside of filter chamber (71), fixedly connected with oil film filter layer (711) are located to the inside intermediate position of filter chamber (71), rear end fixedly connected with spiral air chamber (72) of filter chamber (71), the both sides fixed surface of spiral air chamber (72) is connected with connecting trachea (73).

6. A pressure sensitive inflator according to claim 5 wherein: the inside fixed mounting of spiral air chamber (72) has the spiral auger, and the both sides embedding of spiral air chamber (72) is installed the filter layer.

7. A pressure sensitive inflator according to claim 1 wherein: the use method of the pressure sensing inflation device comprises the following steps:

s1: rotating an adjusting turntable (41) according to the size of the life raft to drive an adjusting shaft (42), a driven pressure plate (421) and a mounting seat (43) to rotate, selecting a proper driven pressure plate (421) to be positioned at the right side of an induction air bag (44) by rotation, and then rotating a sealing tape (11) to ensure that a through hole on the surface of the sealing tape is positioned at the left side of the induction air bag (44);

s2: the whole equipment is released, the equipment starts to float upwards, the seawater pressure passes through the through hole in the surface of the sealing belt (11) and starts to extrude the sensing air bag (44), when the water pressure is higher than the starting water pressure, the gas in the sensing air bag (44) is extruded to push the driving pressure rod (441) inwards, then the driving pressure rod (441) pushes the driven pressure rod (423) inwards, the tail end of the driven pressure rod (423) pushes the trigger guide rod (424) inwards to be located at the innermost side of the trigger pipe (46), the resistance wire is embedded in the trigger pipe (46), the left side of the resistance wire is connected with the input end of the driving motor (3) through a lead, the distance of the resistance wire passed by a circuit is longest, the current is minimum, and the driving motor (3) is not started;

s3: when the whole body floats to a proper height, the water pressure is reduced, the driving pressure rod (441) resets leftwards, the induction spring (422) simultaneously drives the driven pressure plate (421) to reset leftwards, the reset spring on the right side of the trigger guide rod (424) also drives the driven pressure plate to synchronously reset leftwards, the distance of the resistance wire passed by a circuit is shortest, the current is largest, and the driving motor (3) is started;

s4: the driving motor (3) drives the driving wheel (32) to rotate, the surface of the driving wheel (32) is connected with the driving wheel of the single-cylinder air compressor (6) through the conveying belt, then the single-cylinder air compressor (6) is driven to start, and the gas in the gas storage tank (5) is conveyed to the interior of the life raft container (2) through the gas auxiliary mechanism (7) to be rapidly inflated;

s5: after entering, the airflow filters particles through the filter screens (712) on the two sides, oil and gas are primarily filtered through the filter chamber (71), the filtered gas enters the spiral air chamber (72), rotates through the spiral auger inside, passes through the filter layers on the two sides through centrifugal force, is filtered again, and enters the interior of the connecting air pipe (73) to be input into the life raft container (2).

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