CN107380372A - A kind of portable dive equipment - Google Patents
A kind of portable dive equipment Download PDFInfo
- Publication number
- CN107380372A CN107380372A CN201710633642.9A CN201710633642A CN107380372A CN 107380372 A CN107380372 A CN 107380372A CN 201710633642 A CN201710633642 A CN 201710633642A CN 107380372 A CN107380372 A CN 107380372A
- Authority
- CN
- China
- Prior art keywords
- power supply
- floating body
- supply device
- air
- air bag
- 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.)
- Granted
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63C—LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS
- B63C11/00—Equipment for dwelling or working underwater; Means for searching for underwater objects
- B63C11/02—Divers' equipment
- B63C11/18—Air supply
- B63C11/20—Air supply from water surface
- B63C11/205—Air supply from water surface with air supply by suction from diver, e.g. snorkels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63C—LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS
- B63C11/00—Equipment for dwelling or working underwater; Means for searching for underwater objects
- B63C11/02—Divers' equipment
- B63C11/18—Air supply
- B63C11/20—Air supply from water surface
- B63C11/205—Air supply from water surface with air supply by suction from diver, e.g. snorkels
- B63C11/207—Air supply from water surface with air supply by suction from diver, e.g. snorkels with hoses connected to a float
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63C—LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS
- B63C11/00—Equipment for dwelling or working underwater; Means for searching for underwater objects
- B63C11/02—Divers' equipment
- B63C2011/023—Accessories for diving arranged or for use outside the water
Landscapes
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Pulmonology (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
Abstract
A kind of portable dive equipment, including power supply device, the floating body that power supply device can be supported and fixed with power supply device, upright air inlet pipe, breathing hose and the breathing equipment being connected with breathing hose on diving apparatus, the diving apparatus also includes caisson, the caisson is fixed with floating body, the breathing hose, air inlet pipe and the inlet duct powered by power supply device are connected, the inlet duct guiding air enters caisson from air inlet pipe.Feeder of the present invention is storage air bag of the floatability on the water surface, and can arbitrarily be drifted about with diver, and diver need not bear the equipment such as heavy gas cylinder, saves muscle power and enhancing flexibility.And the device of gas storage air bag considerably increases diving security, even if there is power supply trouble, the red storage air bag that swims on the water surface, which can store, ensures that user emerges safely enough oxygen.And the present invention when not in use can release floating body and airbag gas, do not account for volume, be easy to carry about with one.
Description
Technical field
The invention belongs to diving activity field, more particularly, to a kind of portable dive equipment.
Background technology
As the improvement of people's living standards, all kinds of leisure, exploration, outdoor activities are increasingly pursued.Snorkel as new
Emerging marine exploration stress-relieving activity, increasing people's selection go to explore the wonderful world under sea level.Known personal diving
Breathing has two types：Carry oxygen type and direct attraction type.Although can be dived as diving under water to higher depth, but it is the need for whole group
Diving equipment, whether lease or buy and all incur a considerable or great expense, and equip again it is relatively bulky inconvenient to carry.Comparatively, float
Latent equipment is simpler, it is only necessary to an air interchanger being made up of respiratory siphon, but because the length of respiratory siphon has limited
System, and then limited to the depth of dive
Need to carry oxygen cylinder when carrying oxygen type diving, due to the limited volume of oxygen cylinder, therefore the diving time of diver
It can be limited by oxygen cylinder volume, if diver needs prolonged sub-aqua sport, it is necessary to which certain interval of time disembarkation is gone
Oxygen cylinder is changed, is so not only lost time, it is largely physical also to consume diver.In addition, when scuba diver is stupid due to bearing
The oxygen cylinder of weight, muscle power is on the one hand expended, its activity is also have received very big limitation.
Be directly sucked in type usually has the feeder of floating on the water, but is directly fed by air extractor pumping
Scuba diver, when extract system breaks down, possible scuba diver has no to prepare, and comes especially for beginner and general swimmer
Say, it is easy to cause breathing to choke water, and bring life danger.
The content of the invention
In view of the above-mentioned problems of the prior art, it is an object of the invention to provide a kind of safer portable latent
Wetting system.
In order to achieve the above object, the present invention provides a kind of portable dive equipment, including power supply device, can support confession
Can device and fixed with power supply device floating body, upright air inlet pipe on diving apparatus, breathing hose and with breathing
The breathing equipment of flexible pipe connection, it is characterised in that the diving apparatus also includes caisson, and the caisson is consolidated with floating body
It is fixed, connect the breathing hose, air inlet pipe and the inlet duct powered by power supply device, the inlet duct guide air from
Air inlet pipe enters caisson.
Further, the floating body uprightly sets for power supply device can be supported to swim in the object of the water surface installed in diving
Standby upper air inlet pipe, floating body can be hollow or be the object for having certain buoyancy, it is ensured that power supply device and air inlet pipe are floated always
In the water surface.The air inlet pipe is uprightly arranged on diving apparatus, can prevent air inlet pipe from tilting to cause air can not be pumped into gas storage dress
In putting.Caisson is fixed with floating body.When preventing caisson gas deficiency, cause whole device submerged, trigger safety
Accident.Outside air is entered caisson by the energy that the inlet duct is provided using power supply device by air inlet pipe, is being dived under water
Before, first caisson is full of, when diving starts, starts power supply device, air is by air inlet pipe, into caisson, a side
Face gas storage, on the one hand used for diver.
Further, the caisson includes gas storage air bag and determines gas storage gasbag pressure, linked with inlet duct
Pressure sensitive device.The gas storage air bag and floating body activity are fixed, when not in use, quick release, and it is convenient for collecting.Gas storage
Inside air bag is equipped with pressure sensitive device, and pressure sensitive device includes pressure gauge and wireless launcher, and wireless launcher is by connecing
Pressure gauge signals are received, signal can be sent to specified device immediately.When pressure gauge record hypertonia or it is too low when, wireless hair
Emitter sends signal to inlet duct, and the startup and stopping of power supply device are further controlled by inlet duct, realizes that gas storage fills
The timely gas storage put.
Further, the air inlet pipe is provided with by the extraneous breather cheek valve to the direction gas flow of gas storage air bag, described
Breather cheek valve links with caisson.Breather cheek valve can ensure gas in gas storage air bag not with outside air intercommunication,
The stabilization of intracapsular pressure is maintained, due to the linkage with caisson, when the lack of air in gas storage air bag, inlet duct
Starting, breather cheek valve automatically turns on, when gas storage inside air bag air is sufficient, it is not necessary to when continuing inflation, inlet duct is closed,
Breather cheek valve also simultaneously closes off.
Further, the diving apparatus is provided with alarm lamp；The breathing equipment is provided with wirelessly to be connected with pressure sensitive device
The alarm connect and the communication apparatus with alarm lamp wireless connection.The alarm lamp is arranged on floating body, can be ensured in danger
On being bubbled through the water column always during situation, convenient scuba diver companion or other staff see dangerous situation, and Divers are carried out in time
Relief.Because alarm and pressure sensitive device link, thus pressure sensing device senses to intracapsular pressure it is too low when, can be sharp
With gas deficiency in alarm prompting scuba diver's gas storage air bag, it is necessary to which scuba diver returns to the water surface immediately, now diver receives
The signal of alarm need to swim backwater surface in time.And when diver runs into fortuitous event at the bottom and itself can not return to the water surface, can
The alarm lamp on the water surface is opened using the communication apparatus on breathing equipment to be called for help.
Further, the pressure sensitive device is provided with three kinds of pressure sensitive points, maximal pressure force P0, the blowing pressure point P1
With alarm pressure point P2, P0>P1>P2.When pressure gauge record pressure is more than P0, inlet duct, which receives signal, to stop automatically
Machine；When pressure gauge record pressure is more than P1, during less than P0, inlet duct is similarly in stopped status；When pressure gauge records pressure
More than P2, during less than P1, inlet duct receives wireless launcher signal can OnNow；When inlet duct break down or
When low battery can not start, ultimately result in pressure gauge record pressure and be less than P2, wireless launcher sends a signal to radio alarming
Device, reminding diver to receive alarm signal need to float in time.By the setting of three pressure spots, energy on the one hand can be saved
Amount.It need not inflate at moment, extend diving time, on the other hand, several pressure spots of setting realize different functions, operation letter
Single, user can grasp quickly.
Further, the gas storage air bag and floating body are nested type, and gas storage air bag is arranged on outside floating body.In order to practice every conceivable frugality
Space, realize portable energy supply, floating body can be embedded in air bag, when not in use, can the gas of floating body and gas storage air bag put
Sky, the volume of diving apparatus is substantially reduced, is easy to carry.The floating body gas will not mutually circulate with gas storage airbag gas,
When gas storage airbag gas are inadequate, floating body remains able to support function device, be unlikely to gas storage airbag gas it is inadequate when, sink to
In water.Nested design is capable of the light and handy portable of real realization device, while and can ensures the security of diving apparatus.
Further, the floating body is airbag structure, and floating body is provided with emergent tracheae and communicated with gas storage air bag, the emergent gas
Pipe is provided with air pressure in gas storage air bag and is less than alarm pressure point P2 and maintains the emergency valve automatically turned on during 2 ~ 5min.Further
, the floating body is also airbag structure, is embedded in gas storage air bag, can immediately inflate when in use, reduce whole equipment
Volume.The emergent tracheae communicated with gas storage air bag is provided with the floating body, when there is dangerous situation, diver passes through alarm lamp
When sending an SOS, time for being rescued to extend diver to save oneself with him, when gas storage air bag pressure is less than alarm pressure point P2
And when maintaining 2 ~ 5min, the emergency valve can automatically turn on, and realize the inflation to caisson, can extend and scuba diver is sued and laboured
Time, further ensure the safety of diver.
Further, the breathing hose is provided with automatic winder, and the breathing hose length<20m.Due to exhaling
It is longer to inhale hose length, two people can be achieved in the present apparatus by the dive simultaneously of two root breath flexible pipes, therefore when many people are same
When using similar diving apparatus, in order to prevent mutually being wound between breathing hose, and diver pulls exhale when in use always
Flexible pipe is inhaled, may cause to loosen between breathing hose and gas storage air bag, set the automatic winder to prevent such safety
The generation of accident.In addition, automatic winder in diving apparatus when not in use, can also can realize the work of storage to breathing hose
With more convenient storage and carrying.Further, due to this equipment mainly for amateur, to diving requirement will not
It is too high, therefore in order to ensure the safety of Divers, be unlikely to slip into too deep trigger and be not suitable with, or the situation of facing a danger can not
Escape, the length of present apparatus breathing hose are arranged within 20m in time, and length is oversize, may be too big due to air pressure, trigger safety
Accident.
Further, the power supply device is solar cell or rechargeable battery.Solar cell and rechargeable battery are mesh
Preceding the most frequently used battery, solar cell can carry out electric power storage operation in real time, extend diving time, and TunePower is carried and made
With conveniently.
Further, the air inlet pipe is provided with the first air cleaner, and the breathing equipment is provided with the second air cleaner.
Outside air is entered by air inlet pipe, by breather cheek valve, is then passed through the first air cleaner and is entered in gas storage air bag, be provided with
The first air cleaner mainly to extraneous air carry out pre-filtering.Compressed air is reached by breathing hose by gas storage air bag and exhaled
Device is inhaled, first passes through the second air cleaner, then sucked by diver.Ensure that diver sucks clean air, be unlikely to
In respiratory, aspirated foreign body triggers discomfort, causes danger.
The beneficial effects of the invention are as follows：1）Feeder is storage gas of the floatability on the water surface, can be any with diver
Drift about, diver need not bear the equipment such as heavy gas cylinder, itself bear a heavy burden and mitigate significantly, save muscle power and enhancing flexibility.2）
Diving security is considerably increased, even if there is power supply trouble, the red storage air bag swum on the water surface can store guarantee
User emerges safely enough oxygen.3）It is compact portable, floating body and airbag gas can be released when not in use, not account for body
Product, is easy to carry about with one.4）Consume energy low, using linkage, power consumption can be preferably minimized, further extend diving time.
Brief description of the drawings
The front view of 1 diving apparatus of the present invention of accompanying drawing.
The viewgraph of cross-section of 2 diving apparatus of the present invention of accompanying drawing.
Embodiment
Embodiment
As shown in figure 1, the present invention provides a kind of portable dive equipment, including：Power supply device 3, installed in power supply device
On alarm lamp 7, power supply device 3 and the floating body 2 fixed with power supply device 3, the air inlet that is vertically fixed on floating body 2 can be supported
Pipe 4, breathing hose 5 and the breathing equipment 6 being connected with breathing hose 5, the diving apparatus also include single file intake valve 12, entered
Device of air 13 and fix with floating body 2, linked with inlet duct 13, connection breathing hose 5 and the gas storage dress for connecting air inlet pipe 4
Put 1.
Further, the caisson 1 includes gas storage air bag 9 and the pressure of measure gas storage air bag 9, with inlet duct 13
Dynamic pressure sensitive device 8.Gas storage air bag 9 is looped around the outside of floating body 2, is fixed with floating body 2, when not in use, quick release,
It is and convenient for collecting.The inside of gas storage air bag 9 is equipped with pressure sensitive device 8, and pressure sensitive device 8 includes pressure gauge and wireless transmission
Device, wireless launcher send signal by receiving pressure gauge signals, to specified device.
Further, the breathing equipment 6 is provided with alarm 10 and and alarm lamp with the wireless connection of pressure sensitive device 8
The wireless telecommunications system 11 of 7 wireless connections.The pressure sensitive device 8 is provided with maximal pressure force P0, the blowing pressure point P1 and report
Alert pressure spot P2, P0>P1>P2.The air inlet pipe 4 is provided with and linked with inlet duct 13, there is provided by extraneous to gas storage air bag direction
The breather cheek valve 12 of gas flow.When inlet duct 13 starts, breather cheek valve 12 is automatically turned on, and inlet duct 13 is closed
When, breather cheek valve 12 also simultaneously closes off.
Further, the electric supply installation 3 is solar cell or rechargeable battery.The air inlet pipe 4 is provided with the first air
Filter 13, the breathing equipment 6 are provided with the second air cleaner 15.Outside air is entered by air inlet pipe 4, by one-way air inlet
Valve 12, then pass through the first air cleaner 13 and enter gas storage air bag 9, the first air cleaner 13 being provided with is mainly to outside empty
Gas carries out pre-filtering.Compressed air reaches breathing equipment 6 by gas storage air bag 9 by breathing hose 5, first passes through the second air filtration
Device 15, then sucked by diver.
When pressure gauge record pressure is more than P2, during less than P1, the wireless transmission of the reception pressure sensitive of inlet duct 14 device 8
After the open signal that device is sent, power supply device 3 is opened, while breather cheek valve 12 is opened, and air enters from air inlet pipe 4, passes through
Breather cheek valve 12 enters gas storage air bag 9, part storage, and another part uses for scuba diver.Due to continually entering for air,
Pressure can be gradually increasing, and when pressure is more than P0, wireless launcher sends off signal and connect to inlet duct 14, inlet duct 14
After the collection of letters number, power supply device 3 and breather cheek valve 12 is controlled to close.When power supply device 3 breaks down or low battery can not
During startup, ultimately result in pressure gauge record pressure and be less than P2, wireless launcher sends a signal to wireless alarm 10, reminds diving
Member floats in time.When diver is in an emergency under water to save oneself, it can also be opened and supplied by wireless telecommunications system 11
Alarm lamp 7 that can be on device, while wireless telecommunications system outwardly distress call can be passed through.
Claims (10)
1. a kind of portable dive equipment, including power supply device, power supply device can be supported and fixed with power supply device floating body,
Upright air inlet pipe, breathing hose and the breathing equipment being connected with breathing hose on diving apparatus, it is characterised in that
The diving apparatus also includes caisson, and the caisson is fixed with floating body, and connect the breathing hose, air inlet pipe with
And the inlet duct powered by power supply device, the inlet duct guiding air enter caisson from air inlet pipe.
2. portable dive equipment according to claim 1, it is characterised in that the caisson includes gas storage air bag and survey
Determine gas storage gasbag pressure, the pressure sensitive device with inlet duct linkage.
3. portable dive equipment according to claim 1 or claim 2, it is characterised in that the air inlet pipe is provided with by extraneous to storage
The breather cheek valve of gas air bag direction gas flow, the breather cheek valve link with caisson.
4. portable dive equipment according to claim 1 or claim 2, it is characterised in that the diving apparatus is provided with alarm lamp；Institute
Breathing equipment is stated provided with the communication apparatus with the alarm of pressure sensitive device wireless connection and with alarm lamp wireless connection.
5. portable dive equipment according to claim 2, it is characterised in that the pressure sensitive device is provided with three kinds of pressure
Induction point, maximal pressure force P0, the blowing pressure point P1 and alarm pressure point P2, P0>P1>P2.
6. diving apparatus according to claim 1, it is characterised in that the gas storage air bag and floating body are nested type, gas storage gas
Capsule is arranged on outside floating body.
7. portable dive equipment according to claim 6, it is characterised in that the floating body is airbag structure, and floating body is provided with
Emergent tracheae communicates with gas storage air bag, and the emergent tracheae is provided with air pressure in gas storage air bag and is less than alarm pressure point P2 and maintenance
The emergency valve automatically turned on during 2 ~ 5min.
8. portable dive equipment according to claim 1, it is characterised in that the breathing hose fills provided with auto reeling
Put, and the breathing hose length<20m.
9. portable dive equipment according to claim 1, it is characterised in that the power supply device is solar cell or filled
Battery.
10. portable dive equipment according to claim 1, it is characterised in that the air inlet pipe is provided with the first air filtration
Device；The breathing equipment is provided with the second air cleaner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710633642.9A CN107380372B (en) | 2017-07-28 | 2017-07-28 | Portable diving equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710633642.9A CN107380372B (en) | 2017-07-28 | 2017-07-28 | Portable diving equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107380372A true CN107380372A (en) | 2017-11-24 |
| CN107380372B CN107380372B (en) | 2022-04-15 |
Family
ID=60342035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710633642.9A Active CN107380372B (en) | 2017-07-28 | 2017-07-28 | Portable diving equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107380372B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111776171A (en) * | 2020-07-21 | 2020-10-16 | 王佩贵 | Anti-water-choking diving breathing tube capable of stably floating |
| CN111776170A (en) * | 2020-07-22 | 2020-10-16 | 王佩贵 | Diving equipment with adjustable buoyancy |
| CN111806657A (en) * | 2020-07-17 | 2020-10-23 | 广东电网有限责任公司 | Diving air supplement device |
| ES2848498A1 (en) * | 2020-02-07 | 2021-08-09 | Probox Mallorca Sl | SOLAR ENERGY ACTIVATED AUTONOMOUS DIVING EQUIPMENT (Machine-translation by Google Translate, not legally binding) |
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| CN2068486U (en) * | 1990-03-20 | 1991-01-02 | 张春涛 | Underwater breathing apparatus |
| CN1090543A (en) * | 1993-01-15 | 1994-08-10 | 高大放 | Submersible synchronous power diving device |
| CN2322892Y (en) * | 1997-10-06 | 1999-06-09 | 杨安娟 | Floating diver's equipment |
| CN201220742Y (en) * | 2008-06-05 | 2009-04-15 | 彭湘衡 | Portable diving breathing device |
| KR20100007900U (en) * | 2009-01-30 | 2010-08-09 | 송용화 | Underwater air breathing apparatus |
| CN101857079A (en) * | 2010-06-17 | 2010-10-13 | 陈立 | Self-contained electric diving breathing apparatus |
| CN204527589U (en) * | 2015-04-21 | 2015-08-05 | 李龄峰 | Underwater breathing apparatus |
| CN104843160A (en) * | 2015-06-01 | 2015-08-19 | 李翊 | Portable long pipe diving system |
| CN206125375U (en) * | 2016-09-13 | 2017-04-26 | 深圳沃海森科技有限公司 | Multi -functional portable showy formula rebreather |
| CN106965911A (en) * | 2017-03-07 | 2017-07-21 | 陈伟华 | It is a kind of portable from supply diving outfit |
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2017
- 2017-07-28 CN CN201710633642.9A patent/CN107380372B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2068486U (en) * | 1990-03-20 | 1991-01-02 | 张春涛 | Underwater breathing apparatus |
| CN1090543A (en) * | 1993-01-15 | 1994-08-10 | 高大放 | Submersible synchronous power diving device |
| CN2322892Y (en) * | 1997-10-06 | 1999-06-09 | 杨安娟 | Floating diver's equipment |
| CN201220742Y (en) * | 2008-06-05 | 2009-04-15 | 彭湘衡 | Portable diving breathing device |
| KR20100007900U (en) * | 2009-01-30 | 2010-08-09 | 송용화 | Underwater air breathing apparatus |
| CN101857079A (en) * | 2010-06-17 | 2010-10-13 | 陈立 | Self-contained electric diving breathing apparatus |
| CN204527589U (en) * | 2015-04-21 | 2015-08-05 | 李龄峰 | Underwater breathing apparatus |
| CN104843160A (en) * | 2015-06-01 | 2015-08-19 | 李翊 | Portable long pipe diving system |
| CN206125375U (en) * | 2016-09-13 | 2017-04-26 | 深圳沃海森科技有限公司 | Multi -functional portable showy formula rebreather |
| CN106965911A (en) * | 2017-03-07 | 2017-07-21 | 陈伟华 | It is a kind of portable from supply diving outfit |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2848498A1 (en) * | 2020-02-07 | 2021-08-09 | Probox Mallorca Sl | SOLAR ENERGY ACTIVATED AUTONOMOUS DIVING EQUIPMENT (Machine-translation by Google Translate, not legally binding) |
| CN111806657A (en) * | 2020-07-17 | 2020-10-23 | 广东电网有限责任公司 | Diving air supplement device |
| CN111776171A (en) * | 2020-07-21 | 2020-10-16 | 王佩贵 | Anti-water-choking diving breathing tube capable of stably floating |
| CN111776170A (en) * | 2020-07-22 | 2020-10-16 | 王佩贵 | Diving equipment with adjustable buoyancy |
| CN111776170B (en) * | 2020-07-22 | 2021-11-05 | 安徽省康宇水电机械成套设备有限公司 | Diving equipment with adjustable buoyancy |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107380372B (en) | 2022-04-15 |
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