CN112093011A - Foam life vest with hidden wearing device - Google Patents
Foam life vest with hidden wearing device Download PDFInfo
- Publication number
- CN112093011A CN112093011A CN202010914011.6A CN202010914011A CN112093011A CN 112093011 A CN112093011 A CN 112093011A CN 202010914011 A CN202010914011 A CN 202010914011A CN 112093011 A CN112093011 A CN 112093011A
- Authority
- CN
- China
- Prior art keywords
- foam
- foam buoyancy
- buoyancy block
- external
- front chest
- 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.)
- Pending
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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
- B63C9/00—Life-saving in water
- B63C9/08—Life-buoys, e.g. rings; Life-belts, jackets, suits, or the like
- B63C9/11—Life-buoys, e.g. rings; Life-belts, jackets, suits, or the like covering the torso, e.g. harnesses
- B63C9/115—Life-buoys, e.g. rings; Life-belts, jackets, suits, or the like covering the torso, e.g. harnesses using solid buoyant material
-
- 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
- B63C9/11—Life-buoys, e.g. rings; Life-belts, jackets, suits, or the like covering the torso, e.g. harnesses
- B63C9/125—Life-buoys, e.g. rings; Life-belts, jackets, suits, or the like covering the torso, e.g. harnesses having gas-filled compartments
- B63C9/1255—Life-buoys, e.g. rings; Life-belts, jackets, suits, or the like covering the torso, e.g. harnesses having gas-filled compartments inflatable
-
- 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)
- Professional, Industrial, Or Sporting Protective Garments (AREA)
Abstract
The invention relates to the technical field of marine life saving, in particular to a foam life jacket with a hidden wearing device. The foam life jacket with the hidden wearing device is formed by sewing the neck foam buoyancy block, the chest foam buoyancy block and the waist foam buoyancy block, is convenient to wear by drawing and pulling, is simple to operate, can avoid the influence of exposed outside on storage and placement by using a drawing and pulling mode, and can prolong the service life of the foam life jacket; the inflation of the interior of the inflatable air bag is realized through the water immersion type automatic inflation device, so that the buoyancy of the foam life jacket can be improved, the fitting property between a wearer and the life jacket can also be improved, the external combined type stretching bandage is controlled by the inflatable air bag to be clamped and fixed in the inner part of the outer side expansion port of the elastic rolling and releasing mechanism, and the wearing stability is improved; the wearing comfort can be improved by inflating and expanding the wearing position.
Description
Technical Field
The invention relates to the technical field of marine life saving, in particular to a foam life jacket with a hidden wearing device.
Background
A life jacket (life jack), also called a life vest, is a life-saving garment, is designed like a vest and is made of nylon fabric or NEOPRENE (NEOPRENE), buoyancy materials or inflatable materials, reflective materials and the like. The service life is generally 5-7 years, and the life-saving device is one of life-saving devices on ships and airplanes. Typically vest-style, made of foam or cork, etc. The utility model has enough buoyancy when worn on the body, so that the head of the person falling into water can be exposed out of the water.
But the life vest on the market at present simple structure, the functional ten minutes is single, and the while structure is fixed, can't adjust, for convenient wearing, need sew up external bandage in the life vest outside, and the bandage directly exposes outside, leads to accomodating very inconveniently, still can seriously influence its life, and the buoyancy of life vest is fixed simultaneously, and application scope is more single, and the security is limited, and the operation is also very inconvenient.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: in order to solve the problems existing in the prior art, the improved foam life jacket with the hidden wearing device is provided, and the problems that the existing life jacket on the market is simple in structure, very single in functionality, fixed in structure and incapable of being adjusted, an external binding band needs to be sewn on the outer side of the life jacket in order to be worn conveniently, the binding band is directly exposed outside, storage is inconvenient, the service life of the life jacket is seriously influenced, meanwhile, the buoyancy of the life jacket is fixed, the application range is single, safety is limited, and operation is inconvenient are solved.
The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a foam life vest with hidden wearing device, includes foam life vest body and water logging formula automatic charging device, the foam life vest body include neck foam buoyancy piece, left front chest foam buoyancy piece, right front chest foam buoyancy piece, left side waist foam buoyancy piece and right side waist foam buoyancy piece that sew up each other through the connecting band, left front chest foam buoyancy piece and right front chest foam buoyancy piece inside all seted up outside open-ended side direction and indulged the groove of accomodating, left side waist foam buoyancy piece and right side waist foam buoyancy piece inside all seted up lower extreme open-ended side direction horizontal accommodation groove, the side vertically accomodate inslot fixed mounting have a vertical section of thick bamboo that receive and release of built-in elasticity roll-up mechanism, the side horizontal accommodation inslot fixed mounting have a horizontal section of thick bamboo that receive and release of built-in elasticity roll-up mechanism, left front chest foam buoyancy piece, The front end of the right front chest foam buoyancy block, the front end of the left side waist foam buoyancy block and the front end of the right side waist foam buoyancy block are provided with a front accommodating groove with a necking, the water immersion type automatic inflation device is fixedly installed at the lower end of the inner side surface of the front accommodating groove, the surface of an elastic rolling and releasing mechanism inside a longitudinal folding and releasing cylinder and a transverse folding and releasing cylinder is wound with an external combined type stretching bandage, and an external elastic buckle is sewn at the external end of the external combined type pulling and lifting belt inside the longitudinal folding and releasing cylinder.
In order to facilitate assembly and prevent loosening, the elastic rolling and unrolling mechanism comprises an inner rotating tube, a return coil spring and an inner limiting block, wherein the outer side of the inner rotating tube is provided with an assembly notch, the return coil spring is installed at the upper end and the lower end of the inner rotating tube, and the inner limiting block is elastically installed on the inner top surface and the inner bottom surface of the inner rotating tube through an extrusion spring.
In order to match stretching and expansion, the external combined stretching bandage comprises an internal assembling strip inserted into the internal rotating pipe from the assembling notch, an external assembling belt fixed on the outer side surface of the internal assembling strip, external elastic tightening sleeves connected to two sides of the external assembling belt, a rubber conveying pipe sewed inside the external assembling belt and an expansion air bag arranged inside the external elastic tightening sleeves and communicated with the rubber conveying pipe.
In order to reduce cost, facilitate assembly and ensure stability, the left front chest foam buoyancy block and the right front chest foam buoyancy block are the same in size, and the left side waist foam buoyancy block and the right side waist foam buoyancy block are the same in size.
In order to facilitate binding, the lateral bandage with the lateral magic tape is sewn on the outer lateral surface of the external combined type stretching bandage in the transverse winding and unwinding barrel.
In order to facilitate internal air guiding, mounting through holes with built-in external air guide tubes are formed in the left front chest foam buoyancy block, the right front chest foam buoyancy block, the left side waist foam buoyancy block and the right side waist foam buoyancy block, and the expansion air bag is communicated with the rubber conveying pipe through the external air guide tubes and the water immersion type automatic inflation device.
The invention has the beneficial effects that:
(1) the foam life jacket with the hidden wearing device is formed by sewing the neck foam buoyancy block, the left front chest foam buoyancy block, the right front chest foam buoyancy block, the left waist foam buoyancy block and the right waist foam buoyancy block, wherein the chest foam buoyancy block and the waist foam buoyancy block are internally provided with the accommodating grooves internally provided with the external combined type stretching binding bands;
(2) the external combined type stretching bandage comprises an internal assembling strip inserted into the internal rotating pipe from the assembling notch, an external assembling strip fixed on the outer side surface of the internal assembling strip, an external elastic tightening sleeve connected to two sides of the external assembling strip, a rubber conveying pipe sewn inside the external assembling strip and an expansion air bag arranged inside the external elastic tightening sleeve and communicated with the rubber conveying pipe, the inside of the expansion air bag is inflated through a water immersion type automatic inflating device, so that the buoyancy of the foam life jacket can be improved, the fitting property between a wearer and the life jacket can be improved, the external combined type stretching bandage is controlled to be clamped and fixed inside an external expansion port of the elastic rolling and releasing mechanism through the expansion air bag, and the wearing stability is improved;
(3) the wearing comfort can be improved by inflating and expanding the wearing position.
Drawings
The invention is further illustrated with reference to the following figures and examples.
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is an internal sectional view of the elastic reel-up mechanism of the present invention.
Fig. 3 is an interior cross-sectional view of an exterior modular tension strap of the present invention.
In the figure, 1, a water immersion type automatic inflating device, 2, a neck foam buoyancy block, 3, a left front chest foam buoyancy block, 4, a right front chest foam buoyancy block, 5, a left waist foam buoyancy block, 6, a right waist foam buoyancy block, 7, a lateral longitudinal accommodating groove, 8, a lateral transverse accommodating groove, 9, a longitudinal accommodating cylinder, 10, a transverse accommodating cylinder, 11, a front accommodating groove, 12, an external elastic buckle, 13, an assembly notch, 14, an internal rotating pipe, 15, a reset coil spring, 16, an extrusion spring, 17, an internal limiting block, 18, an internal assembly strip, 19, an external assembly belt, 20, an external elastic tightening sleeve, 21, a rubber conveying pipe, 22, an expanding air bag, 23, a lateral binding belt and 24 are arranged on the inner side of the inflating pipe.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.
FIG. 1, FIG. 2 and FIG. 3 show a foam life jacket with a hidden wearing device, which comprises a foam life jacket body and a water immersion type automatic inflating device 1, wherein the foam life jacket body comprises a neck foam buoyancy block 2, a left front chest foam buoyancy block 3, a right front chest foam buoyancy block 4, a left side waist foam buoyancy block 5 and a right side waist foam buoyancy block 6 which are mutually sewed through a connecting belt, lateral longitudinal accommodating grooves 7 with outer side openings are respectively formed in the left front chest foam buoyancy block 3 and the right front chest foam buoyancy block 4, lateral transverse accommodating grooves 8 with lower end openings are respectively formed in the left side waist foam buoyancy block 5 and the right side waist foam buoyancy block 6, longitudinal accommodating cylinders 9 with built-in elastic rolling and releasing mechanisms are fixedly arranged in the lateral longitudinal accommodating grooves 7, transverse accommodating cylinders 10 with built-in elastic rolling and releasing mechanisms are fixedly arranged in the lateral transverse accommodating grooves 8, left front chest foam buoyancy piece 3, right front chest foam buoyancy piece 4, the leading groove 11 of accomodating that the front end has the throat is all seted up to left side waist foam buoyancy piece 5 and right side waist foam buoyancy piece 6 front end, 11 medial surface lower extremes are accomodate at leading to water logging formula automatic inflating device 1 fixed mounting, the elastic rolling mechanism surface winding of the inside of a section of thick bamboo 9 and a horizontal receiving and releasing section of thick bamboo 10 has the tensile bandage of outside combination formula, the outside end of the outside combination formula that vertically receives and releases a section of thick bamboo 9 inside draws up the outband has sewed up outside elasticity buckle 12.
Wherein water logging formula automatic inflating device 1 is market purchase, by the external mounting box and the high-pressure carbon dioxide steel bottle of threaded mounting on the external mounting box lateral surface of the soft spacing sponge piece of built-in water logging and by the spacing elasticity thimble of spacing sponge piece for puncture high-pressure carbon dioxide steel bottle gas outlet through the elasticity thimble, make the inside carbon dioxide of high-pressure carbon dioxide steel bottle lead-in inflation gasbag 22 from outside air duct 24.
In that step, in order to facilitate the assembly and prevent the release, the elastic rolling and releasing mechanism includes an inner rotary tube 14 having an assembly slit 13 through the outside, return coil springs 15 installed at the upper and lower ends of the inner rotary tube 14, and inner stoppers 17 elastically installed at the inner top and bottom surfaces of the inner rotary tube 14 by pressing springs 16.
In that step, in order to cooperate with the stretching and the expansion, the external combined type stretching strap includes an inner assembling strip 18 inserted into the inner rotating tube 14 from the assembling slit 13, an outer assembling band 19 fixed on the outer side surface of the inner assembling strip 18, an outer elastic tightening sleeve 20 for connecting both sides of the outer assembling band 19, a rubber feeding tube 21 sewed inside the outer assembling band 19, and an expansion air bag 22 installed inside the outer elastic tightening sleeve 20 to communicate with the rubber feeding tube 21.
Wherein the inner assembling strip 18 is a flexible assembling strip and is inserted from the circular assembling and disassembling opening at the upper end of the assembling notch 13, and then the circular assembling and disassembling opening at the upper end of the assembling notch 13 is closed by the inner limiting block 17 to avoid loosening.
In that step, for the purposes of reducing cost, facilitating assembly and ensuring stability, the left front chest foam buoyancy block 3 and the right front chest foam buoyancy block 4 are the same in size, and the left side waist foam buoyancy block 5 and the right side waist foam buoyancy block 6 are the same in size.
In that step, for the convenience of binding, the lateral bandage 23 with lateral magic tape is sewed on the outer lateral surface of the external combined type stretching bandage inside the transverse winding and unwinding barrel 10.
In order to facilitate internal air guiding, mounting through holes with built-in external air guide tubes 24 are formed in the left front chest foam buoyancy block 3, the right front chest foam buoyancy block 4, the left waist foam buoyancy block 5 and the right waist foam buoyancy block 6, and the expansion air bag 22 is communicated with the rubber conveying pipe 21 through the external air guide tubes 24 and the water immersion type automatic inflation device 1.
The foam life jacket with the hidden wearing device is formed by sewing a neck foam buoyancy block 2, a left front chest foam buoyancy block 3, a right front chest foam buoyancy block 4, a left waist foam buoyancy block 5 and a right waist foam buoyancy block 6, wherein the chest foam buoyancy block and the waist foam buoyancy block are internally provided with accommodating grooves internally provided with external combined type stretching binding bands; the external combined type stretching bandage comprises an internal assembling strip 18 inserted into the internal rotating pipe 14 from the assembling notch 13, an external assembling belt 19 fixed on the outer side surface of the internal assembling strip 18, an external elastic tightening sleeve 20 connected to two sides of the external assembling belt 19, a rubber conveying pipe 21 sewn inside the external assembling belt 19 and an expansion air bag 22 installed inside the external elastic tightening sleeve 20 and communicated with the rubber conveying pipe 21, the expansion air bag 22 is inflated through a water immersion type automatic inflating device, so that the buoyancy of the foam life jacket can be improved, the fitting property between a wearer and the life jacket can be improved, the external combined type stretching bandage is controlled to be clamped and fixed inside the external stretching notch of the elastic rolling and releasing mechanism through the expansion air bag 22, and the wearing stability is improved; the wearing comfort can be improved by inflating and expanding the wearing position.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (6)
1. A foam life jacket with hidden wearing device, includes foam life jacket body and water logging formula automatic inflation device (1), characterized by: the foam life jacket body comprises a neck foam buoyancy block (2), a left front chest foam buoyancy block (3), a right front chest foam buoyancy block (4), a left side waist foam buoyancy block (5) and a right side waist foam buoyancy block (6) which are mutually sewn through connecting bands, an outer side open side longitudinal accommodating groove (7) is formed in the left front chest foam buoyancy block (3) and the right front chest foam buoyancy block (4), a lower end open side transverse accommodating groove (8) is formed in the left side waist foam buoyancy block (5) and the right side waist foam buoyancy block (6), a longitudinal accommodating barrel (9) with a built-in elastic rolling and releasing mechanism is fixedly installed in the side longitudinal accommodating groove (7), and a transverse accommodating barrel (10) with the built-in elastic rolling and releasing mechanism is fixedly installed in the side transverse accommodating groove (8), left front chest foam buoyancy piece (3), right front chest foam buoyancy piece (4), left side waist foam buoyancy piece (5) and right side waist foam buoyancy piece (6) front end all set up the leading groove (11) of accomodating that the front end has the throat, water logging formula automatic inflating device (1) fixed mounting accomodate groove (11) medial surface lower extreme in the leading, vertically receive and release a section of thick bamboo (9) and transversely receive and release the inside elasticity rolling up and releasing mechanism surface winding of a section of thick bamboo (10) and have the tensile bandage of outside combination formula, vertically receive and release the outside combination formula of a section of thick bamboo (9) inside and draw the outside end of rising to sew up outside elasticity buckle (12).
2. A foam lifejacket with concealed wear means according to claim 1 wherein: the elastic rolling and unrolling mechanism comprises an inner rotating tube (14) with an assembly notch (13) on the outer side, return coil springs (15) arranged at the upper end and the lower end of the inner rotating tube (14) and inner limiting blocks (17) elastically arranged on the inner top surface and the inner bottom surface of the inner rotating tube (14) through extrusion springs (16).
3. A foam lifejacket with concealed wear means according to claim 2 wherein: the external combined type stretching bandage comprises an inner side assembly strip (18) inserted into the inner rotating pipe (14) from an assembly notch (13), an external assembly belt (19) fixed on the outer side surface of the inner side assembly strip (18), external elastic tightening sleeves (20) used for being connected with two sides of the external assembly belt (19), a rubber conveying pipe (21) sewed inside the external assembly belt (19) and an expansion air bag (22) installed inside the external elastic tightening sleeves (20) and communicated with the rubber conveying pipe (21).
4. A foam lifejacket with concealed wear means according to claim 1 wherein: left front chest foam buoyancy piece (3) and right front chest foam buoyancy piece (4) the same size, left side waist foam buoyancy piece (5) and right side waist foam buoyancy piece (6) the same size.
5. A foam lifejacket with concealed wear means according to claim 1 wherein: the lateral bandage (23) with lateral magic tape is sewn on the outer lateral surface of the external combined type stretching bandage in the transverse retractable cylinder (10).
6. A foam lifejacket with concealed wear means according to claim 3 wherein: the left front chest foam buoyancy block (3), the right front chest foam buoyancy block (5), the left side waist foam buoyancy block (6) and the right side waist foam buoyancy block (7) are internally provided with installation through holes with built-in external air guide pipes (24), and the expansion air bag (22) is communicated with the rubber conveying pipe (21) through the external air guide pipes (24) and the water immersion type automatic inflation device (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010914011.6A CN112093011A (en) | 2020-09-03 | 2020-09-03 | Foam life vest with hidden wearing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010914011.6A CN112093011A (en) | 2020-09-03 | 2020-09-03 | Foam life vest with hidden wearing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112093011A true CN112093011A (en) | 2020-12-18 |
Family
ID=73757116
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010914011.6A Pending CN112093011A (en) | 2020-09-03 | 2020-09-03 | Foam life vest with hidden wearing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112093011A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114013604A (en) * | 2021-11-27 | 2022-02-08 | 会同百瑞游乐设备有限公司 | Quick expansion type swimming pool life jacket and using method thereof |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4246672A (en) * | 1978-06-30 | 1981-01-27 | Nippon Oil And Fats Company, Limited | Automatic inflatable safety work vest |
| CN202279223U (en) * | 2011-09-15 | 2012-06-20 | 施洪流 | Novel safe swimming suit capable of adjusting buoyancy |
| JP2013022979A (en) * | 2011-07-15 | 2013-02-04 | Masahiro Shimada | Life jacket |
| CN103407559A (en) * | 2013-08-27 | 2013-11-27 | 苏州市佳腾精密模具有限公司 | Life jacket |
| CN204124341U (en) * | 2014-09-18 | 2015-01-28 | 嘉兴市荣盛救生设备有限公司 | Folding life jacket |
| CN204527583U (en) * | 2015-04-20 | 2015-08-05 | 邱晓华 | A kind of first aid swimming suit with air bag |
| CN208198783U (en) * | 2018-03-02 | 2018-12-07 | 武汉理工大学 | A kind of novel and multifunctional life jacket waterborne |
| CN209852547U (en) * | 2019-04-03 | 2019-12-27 | 武泽轩 | Multifunctional explosion-proof life-saving tactical vest |
| CN209870696U (en) * | 2019-04-09 | 2019-12-31 | 江苏新洛普科技发展有限公司 | Rescue type life jacket |
-
2020
- 2020-09-03 CN CN202010914011.6A patent/CN112093011A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4246672A (en) * | 1978-06-30 | 1981-01-27 | Nippon Oil And Fats Company, Limited | Automatic inflatable safety work vest |
| JP2013022979A (en) * | 2011-07-15 | 2013-02-04 | Masahiro Shimada | Life jacket |
| CN202279223U (en) * | 2011-09-15 | 2012-06-20 | 施洪流 | Novel safe swimming suit capable of adjusting buoyancy |
| CN103407559A (en) * | 2013-08-27 | 2013-11-27 | 苏州市佳腾精密模具有限公司 | Life jacket |
| CN204124341U (en) * | 2014-09-18 | 2015-01-28 | 嘉兴市荣盛救生设备有限公司 | Folding life jacket |
| CN204527583U (en) * | 2015-04-20 | 2015-08-05 | 邱晓华 | A kind of first aid swimming suit with air bag |
| CN208198783U (en) * | 2018-03-02 | 2018-12-07 | 武汉理工大学 | A kind of novel and multifunctional life jacket waterborne |
| CN209852547U (en) * | 2019-04-03 | 2019-12-27 | 武泽轩 | Multifunctional explosion-proof life-saving tactical vest |
| CN209870696U (en) * | 2019-04-09 | 2019-12-31 | 江苏新洛普科技发展有限公司 | Rescue type life jacket |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114013604A (en) * | 2021-11-27 | 2022-02-08 | 会同百瑞游乐设备有限公司 | Quick expansion type swimming pool life jacket and using method thereof |
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