CN110254665B - Self-expanding inflatable lifting type drowning rescue equipment - Google Patents
Self-expanding inflatable lifting type drowning rescue equipment Download PDFInfo
- Publication number
- CN110254665B CN110254665B CN201910566331.4A CN201910566331A CN110254665B CN 110254665 B CN110254665 B CN 110254665B CN 201910566331 A CN201910566331 A CN 201910566331A CN 110254665 B CN110254665 B CN 110254665B
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- China
- Prior art keywords
- device shell
- fixedly connected
- frame piece
- pressing frame
- safety plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 206010013647 Drowning Diseases 0.000 title claims abstract description 25
- 230000006835 compression Effects 0.000 claims abstract description 40
- 238000007906 compression Methods 0.000 claims abstract description 40
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 25
- 210000004369 blood Anatomy 0.000 description 3
- 239000008280 blood Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 102000004506 Blood Proteins Human genes 0.000 description 1
- 108010017384 Blood Proteins Proteins 0.000 description 1
- 206010018910 Haemolysis Diseases 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- GQWNECFJGBQMBO-UHFFFAOYSA-N Molindone hydrochloride Chemical compound Cl.O=C1C=2C(CC)=C(C)NC=2CCC1CN1CCOCC1 GQWNECFJGBQMBO-UHFFFAOYSA-N 0.000 description 1
- 206010062575 Muscle contracture Diseases 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000004204 blood vessel Anatomy 0.000 description 1
- 208000006111 contracture Diseases 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 230000008588 hemolysis Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 210000004072 lung Anatomy 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
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
- B63C9/00—Life-saving in water
- B63C9/08—Life-buoys, e.g. rings; Life-belts, jackets, suits, or the like
- B63C9/081—Life-buoys, e.g. rings; Life-belts, jackets, suits, or the like having compartments comprising elements which are filled with gas by deployment, e.g. sponge-like elements
-
- 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
- B63C9/00—Life-saving in water
- B63C9/08—Life-buoys, e.g. rings; Life-belts, jackets, suits, or the like
- B63C9/18—Inflatable equipment characterised by the gas-generating or inflation device
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Emergency Lowering Means (AREA)
Abstract
The invention provides self-expanding inflatable supporting type drowning rescue equipment, which belongs to the technical field of drowning rescue and comprises a device shell, a film, an opening, a sliding groove, a spring, a pressing frame piece, a clamping rack, a safety plate, a screw switch, a rotating cover, a cylinder, a gear, a compressed gas generating tank, a compression ring, a barb and a compressed air bag, wherein the film is fixedly connected to the middle surface of the device shell, the opening is arranged on the upper surface of the device shell in a nested manner, the sliding groove is arranged on the inner side of the opening in a nested manner, the spring is arranged on the inner side surface of the sliding groove in a clamped manner, the pressing frame piece is fixedly connected to the outer side surface of the spring, the clamping rack is fixedly connected to the middle surface of the device shell, the safety plate is positioned on the outer side of the film, the screw switch is fixedly connected to the right side surface of the safety plate, the rotating cover is movably connected to the top surface of the device shell, and the cylinder is fixedly connected to the middle of the bottom of the rotating cover.
Description
Technical Field
The invention relates to the technical field of drowning rescue, in particular to the technical field of supporting type drowning rescue equipment.
Background
Drowning refers to the situation that a person is submerged in water, and is choked due to the fact that water is sucked into the lung (90% of wet drowning) or the laryngeal contracture (10% of dry drowning), such as fresh water drowning, low water seepage can be caused by the fact that blood is diluted when the alveoli infiltrate into blood vessels, blood volume is increased and hemolysis is carried out, blood potassium is increased, sodium, nitride and plasma proteins are lowered, heart is suddenly stopped, children are often sunk within a few minutes after being found after the help is required due to poor physical strength and self-rescue ability, rescue difficulty is greatly increased after sunk, and the fact that rescue events are sometimes caused by the fact that a rescuer and a rescuee are drowned at the same time even if the rescue person is rescued due to irregular actions is needed, and wide attention is needed.
Accordingly, the inventor has the problem of providing an autonomous inflatable and inflatable lift-up type drowning rescue device which is expected to achieve the purpose of more practical value by keeping the experience of the design development and the actual production in the related industry for years and researching and improving the existing structure and the defects.
Disclosure of Invention
The invention aims to provide an autonomous expansion inflatable supporting type drowning rescue device, which aims to solve the problems of poor self-rescue capability and high rescue difficulty in the existing drowning of the rescued children in the background technology
The invention relates to a supporting type drowning rescue device and the efficacy thereof, which are achieved by the following specific technical means:
the utility model provides a hold-up formula drowned rescue equipment is inflated in independent inflation, includes device shell, film, trompil, sliding tray, spring, pressure frame piece, card rack, guard plate, screw switch, rotation lid, cylinder, gear, compressed gas takes place jar, clamping ring, barb and compression gasbag, fixedly connected with film in the middle of the device shell, device shell top surface nest is provided with the trompil, the inboard nest of trompil is provided with the sliding tray, the inboard surface joint of sliding tray is provided with the spring, spring outside fixedly connected with pressure frame piece, spring inside fixedly connected with clamping tooth strip, fixedly connected with guard plate in the middle of the device shell, and the guard plate is located the film outside, fixedly connected with screw switch in the right side surface, fixedly connected with rotation lid in the middle of the device shell top surface, fixedly connected with cylinder in the bottom the rotation lid, fixedly connected with gear, and gear and clamping tooth strip are the setting, the inside embedding all around of device shell top is provided with compressed gas takes place jar, compressed gas takes place jar one side joint is provided with the spring, fixedly connected with clamping tooth strip in the front of device shell, the inside fixedly connected with barb is located the compression gasbag outside the compression ring, both ends are connected with compression device inside compression device shell, and compression device inside fixedly connected with compression ring.
As a further scheme of the invention: the whole device shell is spherical, and the safety plate and the device shell are in clamping connection.
As a further scheme of the invention: the pressing frame piece is in a right-angle Z shape, the pressing frame piece is in sliding connection with the inside of the device shell, and one end of the pressing frame piece is closed with the opening.
As a further scheme of the invention: one end of the compressed gas generating tank is provided with an air duct, and the air duct of the compressed gas generating tank is communicated with the compressed air bag.
As a further scheme of the invention: the latch strip is provided with three latches, and the latches are meshed with the gears.
As a further scheme of the invention: the right side of the barb is in an inverted triangle shape, and the compression ring is clamped with the air duct.
As a further scheme of the invention: the pressure frame piece is clamped with one section of air duct.
The invention provides autonomous expansion inflatable supporting type drowning rescue equipment, which has the following beneficial effects:
1. this kind of support formula drowned rescue equipment is inflated in independent inflation is provided with the device shell, and the device shell wholly is spherical form, and the insurance board is the joint setting with the device shell, and spherical device shell is more slick and sly sunk into in the aquatic more easily, and separates insurance board and device shell before the use, compression gasbag drops the roll-off when preventing not using.
2. This kind of automatic inflation fills the drowned rescue equipment of lift-type is provided with the pressure frame piece, and the pressure frame piece is right angle "Z" word form, and the pressure frame piece is sliding connection with the inside of device shell, and pressure frame piece one end is closed with the trompil, twist earlier and rotate the lid when using, will rotate the lid and rotate two circles when needing to expand at shallower depth of water, the gear rotates simultaneously and drives the card rack and move to the sliding tray inboard, make the pressure frame piece remove to the sliding tray inboard simultaneously, make the pressure frame piece other end be close to the pressure frame piece more, make the pressure frame piece other end pressure air duct that makes that the pressure frame piece other end can be quick under the pressure of shallow depth of water, make the air duct discharge gas fill inflation compression gasbag rapidly, so like, when needs to expand compression gasbag at medium depth of water then rotate the lid one circle, it directly throws down the device shell to expand compression at the gasbag depth of water then not rotate the lid, make the rescue about subside or be the rescue person under the lift-off can effectually wait for further rescue through the device.
3. This kind of self-expanding inflation lift-up type drowned rescue equipment is provided with the barb, and the barb right side is the triangle-shaped that falls, and clamping ring and air duct looks joint, the barb that the right side is the triangle-shaped that falls makes the pressure frame piece in case after pressing the pressure ring to the air duct, will make pressure ring and air duct remain connected state all the time, make compression gasbag inflation rise after the water pressure decline pressure frame piece rebound through this setting compression gas generation jar can keep to aerify in the compression gasbag all the time, make compression gasbag furthest's expansion and float in the surface of water.
In conclusion, the autonomous expansion inflatable supporting type drowning rescue device has wide practicability, solves the problems of poor self-rescue capability and high rescue difficulty of the existing drowning of the rescued children in the prior art, and has high popularization value.
Drawings
Fig. 1 is a schematic diagram of the overall structure of the present invention.
FIG. 2 is a schematic view of the film structure of the present invention.
Fig. 3 is a schematic view of the structure of the rotary cover of the present invention.
Fig. 4 is a schematic cross-sectional view of the device housing of the present invention.
Fig. 5 is a schematic diagram of the structure of fig. 4 a according to the present invention.
Fig. 6 is a schematic view of the structure of the compression balloon of the present invention.
In fig. 1-6: 1-device housing, 101-film, 102-opening, 1021-sliding groove, 103-spring, 104-pressing frame piece, 105-clamping rack, 106-safety plate, 107-screw switch, 2-rotating cover, 201-cylinder, 202-gear, 3-compressed gas generating tank, 301-pressing ring, 302-barb, 4-compressed air bag.
Detailed Description
Embodiments of the present invention will be described in detail below, examples of which are illustrated in the accompanying drawings and described below. While the invention will be described in conjunction with the exemplary embodiments, it will be understood that the description is not intended to limit the invention to the exemplary embodiments. On the contrary, the invention is to cover not only the exemplary embodiment but also various alternatives, modifications, equivalents and other embodiments, which may be included within the spirit and scope of the invention as defined by the appended claims.
Embodiment one:
referring to fig. 1 to 6, in the embodiment of the invention, an autonomous inflatable and inflatable lift-up type drowning rescue device comprises a device housing 1, a film 101, an opening 102, a sliding groove 1021, a spring 103, a pressure frame plate 104, a latch plate 105, a safety plate 106, a screw switch 107, a rotary cover 2, a cylinder 201, a gear 202, a compressed gas generating tank 3, a compression ring 301, a barb 302 and a compression airbag 4, wherein the middle surface of the device housing 1 is fixedly connected with the film 101, the opening 102 is arranged on the upper surface of the device housing 1 in a nested manner, the sliding groove 1021 is arranged on the inner side of the opening 102 in a nested manner, the spring 103 is arranged on the inner side surface of the sliding groove 1021 in a clamped manner, the pressure frame plate 104 is fixedly connected with the outer side surface of the spring 103, the latch plate 105 is fixedly connected with the middle surface of the device housing 1, the safety plate 106 is positioned on the outer side of the film 101, the right side surface of the safety plate 106 is fixedly connected with the screw switch 107, the top surface of the device housing 1 is movably connected with the rotary cover 2, the bottom of the rotary cover 2 is fixedly connected with the cylinder 201, the bottom of the cylinder 202 is fixedly connected with the gear 202, the gear 202 and the gear 301 is fixedly connected with the compression ring 3, the gear 301 is arranged on the top of the compression ring 3 is fixedly connected with the compression ring 4, the compression ring 3 is arranged on the inner side of the compression ring 4 is fixedly connected with the compression ring 4, and the compression ring 301 is arranged on the inner side of the compression ring 4 is fixedly connected with the compression ring 3.
Further: one end of the compressed gas generating tank 3 is provided with an air duct, and the air duct of the compressed gas generating tank 3 is communicated with the compressed air bag 4.
Further: the racks 105 are distributed with three latches, and the latches are engaged with the gear 202.
Further: the pressure frame piece 104 is clamped with a section of air duct.
Further: the whole device shell 1 is spherical, the safety plate 106 and the device shell 1 are in clamping connection, the spherical device shell 1 is smoother and more easily sunk into water, and the safety plate 106 is separated from the device shell 1 before use, so that the compression air bag 4 is prevented from falling off and sliding out when not used.
Further: the pressing frame piece 104 is in a right-angle Z shape, the pressing frame piece 104 is in sliding connection with the inside of the device shell 1, one end of the pressing frame piece 104 is closed with the opening 102, when the device is used, the rotating cover 2 is twisted firstly, when the device is required to be unfolded at a shallow water depth, the rotating cover 2 is rotated for two circles, at the moment, the gear 202 rotates and drives the clamping rack 105 to move towards the inner side of the sliding groove 1021, meanwhile, the pressing frame piece 104 is moved towards the inner side of the sliding groove 1021, the other end of the pressing frame piece 104 is closer to the pressing frame piece 104, the pressing frame piece 104 can be pressed by water pressure at the other end of the pressing frame piece 104 quickly, the air duct can be used for exhausting air rapidly to fill the inflatable compression air bag 4, and the like, when the compressed air bag 4 is required to be unfolded at a medium water depth, the rotating cover 2 is rotated for one circle, when the compressed air bag 4 is required to be unfolded at a deep water depth, the rotating cover 2 is not rotated to directly throw the device shell 1, and the rescue personnel to be sunk or the rescue personnel can be effectively waited for further rescue.
Further: the right side of the barb 302 is in an inverted triangle shape, the pressing ring 301 is clamped with the air duct, the right side of the barb 302 is in an inverted triangle shape, once the pressing ring 301 is pressed to the air duct by the pressing frame piece 104, the pressing ring 301 and the air duct are always kept in a connection state, after the compression air bag 4 is expanded and lifted by the arrangement, the water pressure is reduced, the pressing frame piece 104 rebounds, the compressed air generating tank 3 can keep always inflating into the compression air bag 4, and the compression air bag 4 is unfolded to the maximum extent and floats on the water surface.
When the self-expanding inflatable lift-up type drowning rescue equipment is used, firstly, the screw switch 107 on the right side of the safety plate 106 is taken out when the self-expanding inflatable lift-up type drowning rescue equipment is used, the safety plate 106 is separated to separate the film 101, then the depth of the compressed air bag 4 in the device is set when the self-expanding inflatable lift-up type drowning rescue equipment is expanded, the rotary cover 2 is rotated for two circles when the self-expanding inflatable lift-up type drowning rescue equipment needs to be expanded at a shallow water depth, the rotary cover 2 is rotated for one circle when the compressed air bag 4 needs to be expanded at a medium water depth, the rotary cover 2 is not rotated when the compressed air bag 4 is expanded at a deep water depth,
when the rotating cover 2 is rotated, the gear 202 rotates and drives the clamping rack 105 to move towards the inner side of the sliding groove 1021, meanwhile, the pressing frame piece 104 moves towards the inner side of the sliding groove 1021, the other end of the pressing frame piece 104 is closer to the pressing frame piece 104, then the device shell 1 is thrown into water, then the water is soaked in the opening 102 to press the pressing frame piece 104, the pressing frame piece 104 is pressed by water pressure, the other end of the pressing frame piece 104 can be quickly pressed by the air duct, the air duct of the compressed air generating tank 3 rapidly discharges air to fill the compressed air bag 4, the compressed air bag 4 expands and breaks the film 101, the pressing frame piece 104 is clamped with the barb 302 once the pressing ring 301 presses the air duct, the pressing ring 301 and the air duct always keep a connected state, after the pressing air bag 4 expands and rises, the water pressure drops, the pressing air generating tank 3 can keep always inflating into the compressed air bag 4, the compressed air bag 4 is expanded to the maximum and floats on the water surface, and the other end of the pressing frame piece 104 is not rotated or one circle is rotated, the other end of the pressing frame piece 104 is far away from the air duct, and the air duct is required to move the pressing frame piece 104 and the pressing frame piece 104 is moved by the water pressure 103.
In summary, although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described above, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and other elements within the spirit and principles of the present invention are intended to be included in the scope of the present invention.
Claims (3)
1. The self-expanding inflatable lifting type drowning rescue device comprises a device shell (1), a film (101), an opening (102), a sliding groove (1021), a spring (103), a pressing frame piece (104), a latch bar (105), a safety plate (106), a screw switch (107), a rotating cover (2), a cylinder (201), a gear (202), a compressed gas generating tank (3), a compression ring (301), a barb (302) and a compressed airbag (4), and is characterized in that the film (101) is fixedly connected to the middle surface of the device shell (1), the opening (102) is arranged on the surface of the upper portion of the device shell (1) in a nested manner, the sliding groove (1021) is arranged on the inner side of the opening (102), the spring (103) is arranged on the inner side surface in a clamped manner, the pressing frame piece (104) is fixedly connected to the outer side surface of the spring (103), the safety plate (106) is fixedly connected to the middle surface of the device shell (1), the safety plate (106) is positioned on the outer side of the film (101), the right safety plate (106) is fixedly connected to the screw switch (107) on the outer side of the device shell (1), the middle of the bottom of the rotating cover (2) is fixedly connected with a column body (201), the bottom of the column body (201) is fixedly connected with a gear (202), the gear (202) and the latch strips (105) are in clamping connection, the compressed gas generation tank (3) is embedded and arranged around the inside of the upper part of the device shell (1), and the compressed gas is generated
A compression ring (301) is arranged on one side of the body generating tank (3) in a clamping manner, barbs (302) are fixedly connected to the front end and the rear end of one side of the compression ring (301), compression air bags (4) are fixedly connected to the inner surface of the film (101), and the compression air bags (4) are positioned below the inner part of the device shell (1); the pressing frame piece (104) is in a right-angle Z shape, the pressing frame piece (104) is in sliding connection with the inside of the device shell (1), and one end of the pressing frame piece (104) is closed with the opening (102); one end of the compressed gas generating tank (3) is provided with a gas guide pipe, and the gas guide pipe of the compressed gas generating tank (3) is communicated with the compressed air bag (4); the right side of the barb (302) is in an inverted triangle shape, and the compression ring (301) is clamped with the air duct; the pressing frame piece (104) is clamped with one section of air duct.
2. The self-inflating inflatable lift-up type drowning rescue device of claim 1, wherein: the whole device shell (1) is spherical, and the safety plate (106) is clamped with the device shell (1).
3. The self-inflating inflatable lift-up type drowning rescue device of claim 1, wherein: three latches are distributed on the latch strip (105), and the latches are meshed with the gear (202).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910566331.4A CN110254665B (en) | 2019-06-27 | 2019-06-27 | Self-expanding inflatable lifting type drowning rescue equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910566331.4A CN110254665B (en) | 2019-06-27 | 2019-06-27 | Self-expanding inflatable lifting type drowning rescue equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110254665A CN110254665A (en) | 2019-09-20 |
| CN110254665B true CN110254665B (en) | 2023-12-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910566331.4A Active CN110254665B (en) | 2019-06-27 | 2019-06-27 | Self-expanding inflatable lifting type drowning rescue equipment |
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| Country | Link |
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| CN (1) | CN110254665B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6409561B1 (en) * | 2000-09-29 | 2002-06-25 | John C. Ibasfalean | Remote activated water self rescue system |
| CN202389583U (en) * | 2011-12-07 | 2012-08-22 | 宁波大学 | Throwing type lifesaving device |
| CN206590086U (en) * | 2017-03-07 | 2017-10-27 | 宁波大学 | A kind of water survival gear |
| CN107640305A (en) * | 2017-10-18 | 2018-01-30 | 蒲骁麟 | Drowning self-rescuing device |
| CN108622336A (en) * | 2018-06-04 | 2018-10-09 | 湘潭大学 | A kind of water surface deliverance apparatus |
| CN108820163A (en) * | 2018-06-14 | 2018-11-16 | 张非非 | A kind of water survival capsule projected and application |
| CN208530814U (en) * | 2018-05-04 | 2019-02-22 | 徐德志 | The drowned lifesaving appliance external member of drowned lifesaving appliance, suspension type |
| CN210258783U (en) * | 2019-06-27 | 2020-04-07 | 华洋洋 | Drowned rescue equipment of formula of holding up is aerifyd in autonomic inflation |
-
2019
- 2019-06-27 CN CN201910566331.4A patent/CN110254665B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6409561B1 (en) * | 2000-09-29 | 2002-06-25 | John C. Ibasfalean | Remote activated water self rescue system |
| CN202389583U (en) * | 2011-12-07 | 2012-08-22 | 宁波大学 | Throwing type lifesaving device |
| CN206590086U (en) * | 2017-03-07 | 2017-10-27 | 宁波大学 | A kind of water survival gear |
| CN107640305A (en) * | 2017-10-18 | 2018-01-30 | 蒲骁麟 | Drowning self-rescuing device |
| CN208530814U (en) * | 2018-05-04 | 2019-02-22 | 徐德志 | The drowned lifesaving appliance external member of drowned lifesaving appliance, suspension type |
| CN108622336A (en) * | 2018-06-04 | 2018-10-09 | 湘潭大学 | A kind of water surface deliverance apparatus |
| CN108820163A (en) * | 2018-06-14 | 2018-11-16 | 张非非 | A kind of water survival capsule projected and application |
| CN210258783U (en) * | 2019-06-27 | 2020-04-07 | 华洋洋 | Drowned rescue equipment of formula of holding up is aerifyd in autonomic inflation |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110254665A (en) | 2019-09-20 |
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