CN101037137A - Charging type self-saving device for emergency under water - Google Patents
Charging type self-saving device for emergency under water Download PDFInfo
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- CN101037137A CN101037137A CN 200710051887 CN200710051887A CN101037137A CN 101037137 A CN101037137 A CN 101037137A CN 200710051887 CN200710051887 CN 200710051887 CN 200710051887 A CN200710051887 A CN 200710051887A CN 101037137 A CN101037137 A CN 101037137A
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- gas generator
- air bag
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- valve
- saving device
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Abstract
The invention relates to an aerated self-saving device for subaqueous emergency use, comprising a gas generator with a valve and gas bags capable of being aerated by expanding gas to save life; the valve is a control valve which is disposed in the gas generator or inside one end of the gas generator, and used for sealing the gas capable of expanding after release in the gas generator and communicating gas bags when opened; the gas bags fixedly connect with the gas generator or the valve. The device also comprises a puller of which one end fixedly connects with the gas generator or the valve, and the other end sealedly and fixedly connects with the other ends of the gas bags, or two ends respectively fixedly connect with the gas generator or the valve. The invention has advantages of small bulk, portable carrying, convenient use, flexibility, safety and reliability.
Description
Technical field
The present invention relates to charging type self-saving device for emergency under in a kind of water, belong to life, device technique field.
Background technology
Selfrescue equipment, device have buoy quoit, life jacket, lifesaving floating block in the water of prior art.The shortcoming of these units is: volume is big, and non-extraordinary circumstances can not dressed in advance, and inconvenience during use is influential to working when using as the operation protection.Also having a kind of patent No. is 85202968, name is called " inflating the emergency survival device certainly ", some shortcomings of buoy quoit, life jacket, lifesaving floating block have been overcome, but there is following problems in this patented technology scheme: what 1, play the lifesaving effect is inflatable ball, be stacked in the A chamber when not using, can not carry, non-extraordinary circumstances can not dressed in advance; 2, the seal box volume is big; 3, unexposed safety measure.Just because of there are the problems referred to above to exist, people thirst for that selfrescue equipment, device in the water are arranged, but past more than 20 year, there is not new technical scheme to come out yet.Worldwide, there have every year numerous people to die to be drowned.Such as, the swimmer is short of physical strength in the swimming process; The beginner is strayed into deep water; The ferry boat sinking; The boater falls into water accidentally; Save oneself or the like suddenly by injured being difficult to for the underwater work person.Because the traditional often bulky function singleness of life and wear after handicapped, people in particular cases can not wear in advance non-, the patent No. is that 85202968 the device of inflation emergency survival certainly exists more technology to topic again, thereby the life of a kind of practicality of market in urgent need, light and handy, easy to carry, good looking appearance and reliable in function.
Summary of the invention
The objective of the invention is to, overcoming the prior art shortcoming provides charging type self-saving device for emergency under in a kind of water, and small product size of the present invention is little, light, can carry, convenient, flexible, safe and reliable when using.The wearer gets into danger in water in the time of can not saving oneself, a lifesaving appliance that needs own pulling to wear with oneself, and this device can be opened automatically, bulging, thereby produces buoyancy, and drowning people's head is emerged, and plays the lifesaving effect.
Technical scheme of the present invention is: charging type self-saving device for emergency under in a kind of water, and it comprises the gas generator with valve, can be inflated the air bag that plays the lifesaving effect after gas swells in addition; Valve is a control cock, is positioned among the gas generator or an end, is used for the air seal that will can expand after the release of gas generator communicated air bags wherein and when opening; Described air bag is captiveed joint with gas generator or with valve; Also have a draw piece, the one end is captiveed joint with gas generator or with valve, the other end sealing and fixing of the other end and air bag, or respectively captive joint with a gas generator or with valve respectively in two ends.
The further technical scheme that has additional technical feature on the technique scheme basis is:
Charging type self-saving device for emergency under in the water has the gas-distributing pipe of a hollow that links to each other with valve in the described air bag, have several air extractor vents to be communicated with space between gas-distributing pipes and the air bag on this gas-distributing pipe; Described draw piece is arranged in gas-distributing pipe.
Charging type self-saving device for emergency under in the water, the outside of described gas generator also have one deck can prevent from the user is produced cold foam quality guarantee sheath of burning.
Charging type self-saving device for emergency under in the water, on the described air bag or/and attaching parts is arranged on the gas generator.
Charging type self-saving device for emergency under in the water, described gas generator are miniature storage tanks, and its volume is 2 milliliters-20 milliliters, and material is selected from metal or high strength plastics; The can hole that the gas that a can expand is arranged on the gas generator; The described gas that can expand is blue gas, is selected from carbon dioxide, or nitrogen, or ammonia or unreactable gas; The exterior protective cover of metal gas generator is the protective coat of one deck foamed plastic matter.
Charging type self-saving device for emergency under in the water, described air bag are sebific duct; Described air bag hose material is selected from latex or high elastic rubber.
Charging type self-saving device for emergency under in the water, described draw piece is in air bag inside, be used to limit airbag inflation length, the one end is captiveed joint with a gas generator, the other end sealing and fixing of the other end and air bag, or respectively each is captiveed joint with a gas generator at two ends, and the control piece of valve is an attaching parts.
Charging type self-saving device for emergency under in the water, described draw piece is in air bag inside, be used to limit airbag inflation length, by-pass valve control is opened again simultaneously, the one end is connected with the control piece of valve, the other end sealing and fixing of the other end and air bag, or respectively captive joint with a gas generator respectively in two ends, valve is a boiler check valve, and draw piece is connected with the control piece of valve.
Charging type self-saving device for emergency under in the water, described draw piece is selected from nylon rope, or plastic rope, or high-strength carbon fibre silk rope, or the organic fiber rope, or animal weave silk rope or metal filament.
Charging type self-saving device for emergency under in the water, described air bag are tubulose, the ring that attaching parts constitutes for the draw piece end, or the frenulum of the exposed portions serve of draw piece formation; Attaching parts on the air bag end and the attaching parts on the gas generator or the attaching parts that oneself distributes on one's body with air bag flexibly connect and become necklace, or waistband, or braces.
Charging type self-saving device for emergency under in the described water, described air bag are tubulose, and two ends are communicated with a gas generator captive joint and sealing respectively separately; Attaching parts on attaching parts on one of them gas generator and another gas generator flexibly connects or becomes necklace with two gas generators with air bag from the attaching parts flexible connection that distributes on one's body, or waistband, or braces.
Charging type self-saving device for emergency under in the water, described air bag are the life waistcoat of flats.
A kind of more piece item connects charging type self-saving device for emergency under in the water of formula, and it is based on charging type self-saving device for emergency under in the above-mentioned water, and it comprises the gas generator with valve, can be inflated the gas back that swells in addition and play the air bag of lifesaving effect; Valve is a control cock, is positioned among the gas generator or on the end, is used for the air seal that will can expand after the release of gas generator communicated air bags wherein and when opening; Described air bag is captiveed joint with gas generator or with valve, and sealing is communicated with; Also have a draw piece, the one end is captiveed joint with gas generator or with valve, the other end sealing and fixing of the other end and air bag, or respectively captive joint with a gas generator or with valve respectively in two ends; Described air bag is an elastic rubber tube; Gas generator is a metal, cylindricality or sphere, and its outer surface has one deck foam matter protective layer; Have at least two the cover above-mentioned water in charging type self-saving device for emergency under be concatenated into charging type self-saving device for emergency under in the multi-section type water by attaching parts.
Principle of work of the present invention and effect are as follows:
Product of the present invention can manufacture the form of necklace (bangle, vest, belt or the like), and swimmer (or other various crowds that are suitable for saving oneself in the water) is worn on neck with it, and before not using as life, it is only as user's decorative fitting.As in water, running into emergency situation, the user can spur any one one of this product main body with corresponding pulling force with hand, its pulling force is by draw piece 7 pulling valves 5, blue gas is discharged, thereby producing expanding gas enters in the high resiliency colloid leak free air bag 2, make its state (as Fig. 3) after original state (as Fig. 2) becomes inflation rapidly, impel wearer's head to emerge, reach the lifesaving purpose.Small product size of the present invention is little, light, can carry, convenient, flexible, safe and reliable when using.
Description of drawings
Fig. 1 is that self-help apparatus of the present invention has a gas generator 1, sebific duct air bag 2, single-unit loop chain type structure diagram;
Fig. 2 is the state of nature scheme drawing of Fig. 1 unaerated;
Fig. 3 is the running condition scheme drawing after Fig. 1 inflates;
Fig. 4 is that self-help apparatus of the present invention has two gas generators 1, sebific duct air bag 2, single-unit loop chain type structure diagram;
Fig. 5 is air bag end and the loop chain type scheme drawing that self also is distributed with attaching parts;
The polyatomic ring chain structure sketch that Fig. 6 is made up of a plurality of self-help apparatus single-pieces;
Fig. 7 be valve 5 in gas generator 1 one ends, air bag 2 one ends captive joint with valve 5, the control piece connecting rod 14 bonded assembly structure diagrams of draw piece 7 and valve 5;
Fig. 8 be valve 5 in gas generator 1, air bag 2 and draw piece 7 one ends are all captiveed joint with gas generator 1, the control piece of valve 5 is structure diagrams of attaching parts 3.
The cooresponding member of each figure number is among the figure: 1-gas generator, 2-air bag, 3,3 ', 3 "-attaching parts, the gas that 4-can expand; 5-valve, 6-can hole, 7-draw piece, 8-gas-distributing pipe; 9-air extractor vent, 10-protective cover, 11-valve; 12-valve stem, 13-camshaft, 14-connecting rod; 15-valve spring, 16-thimble spring, 17-thimble; 18-locking groove, 19-plus-minus screw, 20-air flue.
The specific embodiment
It is as follows that the invention will be further described in conjunction with the accompanying drawings and embodiments:
Embodiment 1: shown in Fig. 1,2,3,8, be that the present invention has charging type self-saving device for emergency under embodiment in a kind of water that a gas generator, air bag are sebific duct, single-unit loop chain type.It has a gas generator 1 with valve 5, can be inflated the air bag 2 that plays the lifesaving effect after gas swells in addition; Valve 5 is control cock, be positioned at (as shown in Figure 8) among the gas generator 1, in also can connecting at one end (being additional embodiments as shown in Figure 7), the gas 4 that is used for expanding after the release of gas generator 1 seals wherein and communicated air bags 2 when opening; Described air bag 2 is captiveed joint with gas generator 1 (as shown in Figure 8) or with valve 5 (being additional embodiments as shown in Figure 7); Also has a draw piece 7, the one end also can be captiveed joint with valve 5 (being additional embodiments as shown in Figure 7) with gas generator 1 (shown in 8), the other end sealing and fixing of the other end and air bag 2, two ends respectively each with a gas generator 1 (as shown in Figure 4) or to captive joint with valve 5 (as shown in Figure 7) be additional embodiments); On the described air bag 2 attaching parts 3 ' is arranged, attaching parts 3 is arranged on the gas generator 1, be used to connect into the osed top annular; Described gas generator 1 is miniature storage tank, and its volume is 5 milliliters, and minimum is chosen as 2 milliliters, and maximum is chosen as 20 milliliters, and material is elected corrosion-resistant steel as, also can be high strength plastics; The can hole 6 (seeing Fig. 7,8) of the gas 4 that a can expand is arranged on the gas generator 1, and this hole is unidirectional valve opening; The described gas 4 that can expand is blue gas, preferably from carbon dioxide, also can be liquid nitrogen gas, liquefaction ammonia, liquefied gas; The protective coat that gas generator 1 exterior protective cover 10 is one deck foamed plastic matter; Described air bag 2 is a sebific duct; Described air bag 2 hose material are selected from latex, also can be high elastic rubbers; Described draw piece 7 is in air bag 2 inside, be used to limit air bag 2 expansion length, the one end is captiveed joint with a gas generator 1, the other end sealing and fixing of the other end and air bag 2, also can respectively captive joint with a gas generator 1 respectively at two ends, the control piece of valve 5 is attaching parts 3 (see figure 8)s; Described draw piece 7 is selected from nylon rope, also can elect plastic rope as, or high-strength carbon fibre silk rope, or the organic fiber rope, or animal weave silk rope or metal filament; Described air bag 2 is a tubulose, and attaching parts 3 ' is the ring that draw piece 7 ends constitute, and also can be the frenulum of the exposed portions serve formation of draw piece 7; Attaching parts 3 on attaching parts 3 ' on air bag 2 ends and the gas generator 1 also can with air bag 2 from the attaching parts 3 that distributes on one's body " flexibly connect (see figure 5), be convenient to choice length, constitute necklace, or waistband, or braces;
Embodiment 2: as Fig. 4, shown in Figure 7, and different with the foregoing description is self-help apparatus of the present invention has two gas generators 1 and sebific duct air bag 2, single-unit loop chain type structure embodiment; The gas-distributing pipe 8 that a hollow that links to each other with valve 5 is arranged in the described air bag 2, the space that has several air extractor vents 9 to be communicated with between gas-distributing pipe 8 and the air bag on this gas-distributing pipe 8; Described draw piece 7 is arranged in gas-distributing pipe 8 (seeing Fig. 1, Fig. 7); The outside of described gas generator 1 also has one deck can prevent from the user is produced cold foam quality guarantee sheath 10 of burning, (see figure 7); Valve 5 is a boiler check valve, and draw piece 7 is connected with the control piece connecting rod 14 of valve 5; Described air bag 2 is a tubulose, and two ends are communicated with a gas generator captive joint and sealing respectively separately; Attaching parts 3 on one of them gas generator flexibly connect with attaching parts 3 on another gas generator (also can with air bag 2 from the attaching parts 3 that distributes on one's body " flexibly connect) become necklace, or waistband, or braces with two gas generators.
Embodiment 3: as shown in Figure 5, different with the foregoing description is that described air bag 2 is distributed with attaching parts 3 from one's body ", be convenient to change length, be fit to the needs of Different Individual.
Embodiment 4: different with the foregoing description is that the described air bag 2 of self-help apparatus of the present invention is the life waistcoat of flats.
Embodiment 5: as shown in Figure 6, be that a kind of more piece item connects charging type self-saving device for emergency under in the water of formula, it is based on charging type self-saving device for emergency under in the above-mentioned water, and three gas generators 1 with valve 5 are arranged, and also has three can be inflated the air bag 2 that plays the lifesaving effect after gas swells; Valve 5 is control cock, among the seat gas generator 1, also can be at one end in, be used for gas 4 sealings that will can expand after the release of gas generator 1 communicated air bags 2 wherein and when opening; Described air bag 2 and gas generator 1 also can be captiveed joint with valve 5, and sealing is communicated with; Also have a draw piece 7, one end and gas generator 1 also can be captiveed joint with valve 5, and the other end sealing and fixing of the other end and air bag 2 also can respectively be captiveed joint with a gas generator 1 or with valve 5 respectively at two ends; Described air bag 2 is an elastic rubber tube; Gas generator 1 is a metal, cylindricality or sphere, and its outer surface has one deck foam matter protective layer 10; State of nature lower gasbag 2 outer dias are 5 millimeters to 20 millimeters, and this example is elected 8 millimeters as; Gas generator 1 is a metal, and cylindricality also can be sphere, and outer dia is 8 millimeters to 15 millimeters, and this example is elected 10 millis as; There is in the above-mentioned water of three covers charging type self-saving device for emergency under be concatenated into and connects charging type self-saving device for emergency under in the formula water by attaching parts.
7 principles of valve working when just using are described as follows in conjunction with the accompanying drawings:
1, the expansion of air bag 2 is used: when the user spurs any one of this product main body with hand with corresponding pulling force, the pulling force that produces is by draw piece 7 pulling connecting rods 14, connecting rod 14 drives camshaft 13 rotations, overcome the pressure of valve spring 15 gentle chamber high-pressure gas, valve stem 12 is pushed up to air storage chamber, locking groove 18 on valve stem 12 walks to thimble 17 positions, thimble is at the locking groove 18 that heads under the effect of thimble spring 16 on the valve stem 12, make valve 11 open and can not return, the interior liquefied gas of air storage chamber this moment discharges from air storage chamber, enter in the plastic cement pipe 8 that is connected with valve 5 by air flue 20 with gaseous state, enter space between plastic cement pipe 8 and the air bag 2 by a plurality of little air extractor vent 9 on the plastic cement pipe 8 again, impel air bag 2 to expand rapidly.
What 2, air bag 2 expanded cools down: open attaching parts 3,3 ', take off life, open can hole 6, the gas of air bag 2 the insides can return gas generator 1 by air flue 20 under air bag 2 systolic pressures own, discharge from the filling exit of opening 6, air bag 2 restores to the original state; Put in air chamber with special tool from filling exit 6 again, loosen plus-minus screw 19, thimble spring 16 is retreated, drive thimble 17 and withdraw from locking groove 18, valve stem 12 resets under the effect of valve spring 15, drives valve 11 and closes again.
3, the gas 4 that can expand after the can release: tighten plus-minus screw 19, to gas generator 1 filling liquid gasification, close can hole 6 after finishing by can hole 6.
Attaching parts 3,3 ', 3 of the present invention " when being annular, what connect two attaching partss can also be other frenulum or rope.
The gas 4 that can expand of the present invention can also be solid state gas (for example dry ice) except that liquid gas.
Protection domain of the present invention is not limited to the foregoing description.
Claims (13)
1, charging type self-saving device for emergency under in a kind of water is characterized in that, it comprises the have valve gas generator (1) of (5), can be inflated the gas back that swells in addition and play the air bag (2) of lifesaving effect; Valve (5) is a control cock, is positioned among the gas generator (1) or an end, and the gas (4) that is used for expanding after the release of gas generator (1) seals wherein and communicated air bags (2) when opening; Described air bag (2) is captiveed joint with gas generator (1) or with valve (5); Also have a draw piece (7), the one end is captiveed joint with gas generator (1) or with valve (5), the other end sealing and fixing of the other end and air bag (2), or respectively captive joint with a gas generator (1) or with valve (5) respectively in two ends.
2, according to charging type self-saving device for emergency under in the described water of claim 1, it is characterized in that, the gas-distributing pipe (8) that a hollow that links to each other with valve (5) is arranged in the described air bag (2) has the space between several air extractor vents (9) connection gas-distributing pipe (8) and the air bag on this gas-distributing pipe (8); Described draw piece (7) is arranged in gas-distributing pipe (8).
According to charging type self-saving device for emergency under in the described water of claim 1, it is characterized in that 3, the outside of described gas generator (1) also has one deck can prevent from the user is produced cold protective cover of burning (10).
According to charging type self-saving device for emergency under in claim 1 or the 2 or 3 described water, it is characterized in that 4, described air bag (2) is gone up or/and on the gas generator (1) attaching parts is arranged.
5, according to charging type self-saving device for emergency under in claim 1 or the 2 or 3 described water, it is characterized in that described gas generator (1) is miniature storage tank, its volume is 2 milliliters-20 milliliters, and material is selected from metal or high strength plastics; The can hole (6) that the gas (4) that a can expand is arranged on the gas generator (1); The described gas (4) that can expand is blue gas, is selected from carbon dioxide, or nitrogen, or ammonia or unreactable gas; The exterior protective cover of metal gas generator (1) (10) is the protective coat of one deck foamed plastic matter.
6, according to charging type self-saving device for emergency under in claim 1 or the 2 or 3 described water, it is characterized in that described air bag (2) is a sebific duct; Described air bag (2) hose material is selected from latex or high elastic rubber.
7, according to charging type self-saving device for emergency under in the described water of claim 1, it is characterized in that, described draw piece (7) is in air bag (2) inside, be used to limit air bag (2) expansion length, the one end is captiveed joint with a gas generator (1), the other end sealing and fixing of the other end and air bag (2), or respectively each is captiveed joint with a gas generator (1) at two ends, and the control piece of valve (5) is attaching parts (3).
8, according to charging type self-saving device for emergency under in the described water of claim 1, it is characterized in that, described draw piece (7) is in air bag (2) inside, be used to limit air bag (2) expansion length, by-pass valve control (5) is opened again simultaneously, and the one end is connected with the control piece of valve (5), the other end sealing and fixing of the other end and air bag (2), or respectively each is captiveed joint with a gas generator (1) at two ends, and valve (5) is a boiler check valve, and draw piece (7) is connected with the control piece of valve (5).
According to charging type self-saving device for emergency under in the described water of claim 1, it is characterized in that 9, described draw piece (7) is selected from nylon rope, or plastic rope, or high-strength carbon fibre silk rope, or the organic fiber rope, or animal weave silk rope or metal filament.
10, according to charging type self-saving device for emergency under in claim 1 or the 4 described water, it is characterized in that described air bag (2) is a tubulose, attaching parts (3 ') is the ring that draw piece (7) end constitutes, or the frenulum of the exposed portions serve of draw piece (7) formation; Attaching parts (3) on attaching parts (3 ') on air bag (2) end and the gas generator (1) or flexibly connect from the attaching parts that distributes on one's body (3 ") with air bag (2) and to become necklace, or waistband, or braces.
11, according to charging type self-saving device for emergency under in claim 1 or the 4 described water, it is characterized in that described air bag (2) is a tubulose, two ends are communicated with a gas generator captive joint and sealing respectively separately; Attaching parts flexible connection on attaching parts on one of them gas generator and another gas generator or the attaching parts that distributes on one's body certainly with air bag (2) (3 ") flexible connection becomes the necklace with two gas generators, or waistband, or braces.
According to charging type self-saving device for emergency under in the described water of claim 1, it is characterized in that 12, described air bag (2) is the life waistcoat of flats.
13, a kind of more piece item connects charging type self-saving device for emergency under in the water of formula, it is based on charging type self-saving device for emergency under in the described water of claim 1, it is characterized in that it comprises the have valve gas generator (1) of (5), can be inflated the gas back that swells in addition and play the air bag (2) of lifesaving effect; Valve (5) is a control cock, is positioned among the gas generator (1) or on the end, is used for gas (4) sealing that will can expand after the release of gas generator (1) communicated air bags (2) wherein and when opening; Described air bag (2) is captiveed joint with gas generator (1) or with valve (5), and sealing is communicated with; Also have a draw piece (7), the one end is captiveed joint with gas generator (1) or with valve (5), the other end sealing and fixing of the other end and air bag (2), or respectively captive joint with a gas generator (1) or with valve (5) respectively in two ends; Described air bag (2) is an elastic rubber tube; Gas generator (1) is a metal, cylindricality or sphere, and its outer surface has one deck foam matter protective layer (10); Have at least two the cover above-mentioned water in charging type self-saving device for emergency under be concatenated into charging type self-saving device for emergency under in the multi-section type water by attaching parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100518877A CN100572189C (en) | 2007-04-13 | 2007-04-13 | Charging type self-saving device for emergency under in the water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100518877A CN100572189C (en) | 2007-04-13 | 2007-04-13 | Charging type self-saving device for emergency under in the water |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101037137A true CN101037137A (en) | 2007-09-19 |
| CN100572189C CN100572189C (en) | 2009-12-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007100518877A Expired - Fee Related CN100572189C (en) | 2007-04-13 | 2007-04-13 | Charging type self-saving device for emergency under in the water |
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| CN (1) | CN100572189C (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102452467A (en) * | 2010-10-18 | 2012-05-16 | 李勇 | Swimming belt |
| CN103342159A (en) * | 2013-07-11 | 2013-10-09 | 蔡伟琦 | Belt with near-drowning life-saving function |
| CN104192283A (en) * | 2014-08-20 | 2014-12-10 | 辛东京 | Micro self-rescuing device used in drowning |
| CN108454805A (en) * | 2018-05-16 | 2018-08-28 | 李初斌 | Emergency device in water |
| CN112141297A (en) * | 2020-09-14 | 2020-12-29 | 阳忠海 | Life saving equipment that can be used to well remote throwing |
-
2007
- 2007-04-13 CN CNB2007100518877A patent/CN100572189C/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102452467A (en) * | 2010-10-18 | 2012-05-16 | 李勇 | Swimming belt |
| CN103342159A (en) * | 2013-07-11 | 2013-10-09 | 蔡伟琦 | Belt with near-drowning life-saving function |
| CN104192283A (en) * | 2014-08-20 | 2014-12-10 | 辛东京 | Micro self-rescuing device used in drowning |
| CN108454805A (en) * | 2018-05-16 | 2018-08-28 | 李初斌 | Emergency device in water |
| CN112141297A (en) * | 2020-09-14 | 2020-12-29 | 阳忠海 | Life saving equipment that can be used to well remote throwing |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100572189C (en) | 2009-12-23 |
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