CN201132602Y

CN201132602Y - Gas precharge valve of inflatable lifejacket

Info

Publication number: CN201132602Y
Application number: CNU2007203067102U
Authority: CN
Inventors: 唐雯
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-11-29
Filing date: 2007-11-29
Publication date: 2008-10-15
Anticipated expiration: 2017-11-29

Abstract

The utility model provides a charging valve used for manually or automatically charging an inflatable life vest. A sealing collar, a return spring and an O-shaped ring are arranged on a punching pin which is arranged in a round hole in the middle of a machine body; a manual cam, an automatic cam and two torsion springs are fixed on the machine body through cylindrical pins, and are positioned next to the punching pin; the two torsion springs are connected with the automatic cam through stop pins; the automatic cam drives the torsion springs to reversely rotate for 180 DEG, so as to compress the springs; a water-sensitive paper loop is used for fixing the automatic cam on the machine body, then a hood shield is covered on the upper part of the machine body. When the life vest falls into the water, the water-sensitive paper loop is wet instantaneously, the compressive force of the springs is fast released, the automatic cam is clockwise rotated under the action of the springs so as to drive the punching pin to move, the punching pin returns instantaneously and automatically under the action of the return spring after the film at the mouth of a gas bottle is pieced by the punching pin, thus, the gas is released fast to charge a gas chamber, so as to produce buoyancy, thereby achieving the lifesaving purpose, while the manual cam above the water surface is manually pulled, thereby realizing the manual inflation.

Description

The inflatable life jacket charge valve

Affiliated technical field

The utility model relates to the water survival field, be a kind of can to inflatable life jacket with manually, the gas filed device of automated manner, promptly a kind of inflatable life jacket charge valve.

Background technology

Inflatable life jacket is manual, self-filler, the pattern of using has multiple at present, but major part is that the water-sensitive material is met water-soluble separating in the use device, discharges compression spring, and spring force promotes a thimble, promote a push rod again by thimble, promoted towards pin by push rod, towards the venting of acupuncture relieving stagnant Qi bottle film mouth, gas charges into the life jacket air chamber by pneumatic head again, make the life jacket gas expansion forming, the effect of performance water survival.Such gas filled device spring force will transmit by three times, there was a mechanical failure easily, and headed into the gas cylinder mouth towards pin, can not return, carbon dioxide in the gas cylinder is difficult to emit, liquid carbon dioxide is frozen produce " ice resistance ", gas filled device is that the bonded assembly area of contact is little by pneumatic head and air chamber bonded assembly, intensity is not high, and whole gas filled device volume is bigger, and weight is heavier, and overall sensitivity, reliability are not high.

Summary of the invention

Existing inflatable life jacket is manual in order to overcome, the deficiency of self-filler, the utility model provide a kind of inflatable life jacket manually, self-filler, this device changes compression spring into torsion spring, and improvement structure, make that torsion spring torsion is disposable to pass to towards pin, self-return immediately behind the acupuncture relieving stagnant Qi bottle film mouth, carbon dioxide is fast released, and volume, weight greatly reduce, and reliability strengthens.

The technical scheme that its technical matters that solves the utility model adopts is: Sealing shield ring, pull back spring, O shape circle are installed on pin, be installed in the middle circular hole of fuselage towards pin, manually cam, be fixed on the fuselage by straight pin from moving cam, two torsion springs, and with towards pin near; Two torsion springs by backing pin with link to each other from moving cam, automatically cam driven torsion spring left-hand revolution 180 is spent, make the torsion spring compression, to be fixed on the fuselage from moving cam with water-sensitive paper ring, be in arm-to-arm from moving cam, cover guard shield at back again, be connected with the high frequency heat seal method with the air chamber adhesive plaster around the whole fuselage.After life jacket fell into water, water-sensitive paper ring was met water, dissolves at once, the torsion spring compressive force is discharged rapidly, from moving cam clickwise under the effect of torsion spring power, from moving cam to the minor increment in straight pin axle center to ultimate range, arrive the mode of minor increment again, drive is towards needle movement, behind acupuncture relieving stagnant Qi bottle film mouth, under the effect of pull back spring power, self-return immediately, carbon dioxide is fast released, and inflation produces buoyancy to air chamber, reaches the lifesaving purpose.The manual cam of artificial pulling, manually cam drives towards needle movement by rotation, behind acupuncture relieving stagnant Qi bottle film mouth, under the effect of pull back spring power, self-return immediately, carbon dioxide is fast released.Manually, automatic two kinds of inflation modes can be selected arbitrarily as required.Described water-sensitive paper ring is to be formed by special paper coiling, the number of turns of coiling can and be opened the required time automatically according to the intensity of torsion spring and decide, this kind paper is the same with common paper in air, tension intensity is higher, but the connecting key behind the chance water between its fiber molecule ruptures rapidly, at once dissolve, can the automatic release spring force in 2 seconds.Described dioxide bottle is the disposable special-purpose gas cylinder of the fully enclosed, seals easily to be pierced, and carbon-dioxide capacity and air chamber volume are suitable.

Compared with the prior art the present invention has following advantage:

1. the time of opening automatically is short, is about 2 seconds, and can appropriateness control, and moisture resistance is good, can not open good reliability by mistake.

2. torsion spring power is directly transmitted, and does not have intermediate link, the mechanicalness fault can not occur.

3. behind the needle-penetration gas cylinder, self-return, air bleed hole is big, and venting speed is fast, can not produce " ice resistance ".

4. gas directly charges into air chamber, does not need to inflate the chieftain, and the possibility of gas leakage reduces.

Gas filled device and air chamber to be connected area big, stability is high.

6. simple and reasonable, volume, weight are about half of market like product, and is easily manufactured, low price.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is a sectional structure chart of the present utility model.

Fig. 2 is the three-dimensional structure diagram that cuts open front protection cover of the present utility model.

1. automatic safe buttons among the figure, 2. from moving cam, 3. torsion spring, 4. water-sensitive paper circle, 5. water-sensitive paper circle frame, 6. block, 7. stage clip, 8. tightening seal washer, 9. fuselage, 10. gas cylinder connects screw socket, 11. rear shields, 12. manual cams, 13. straight pin, 14. towards pin, the 15.O RunddichtringO, 16. Sealing shield ring, 17. gasket seals, 18. manual cam plastic pieces, 19. manual cam safety button, 20. heat seal positions, 21. manual stay cords.

The specific embodiment

In Fig. 1, O RunddichtringO (15), pull back spring (7), tightening seal washer (8), Sealing shield ring (16) is installed on pin (14), be installed in the middle circular hole of fuselage (9) towards pin (14), torsion spring (3), from moving cam (2), manually cam (12) is fixed on the fuselage (9) by straight pin (13), drive torsion spring (3) inverse clock Rotate 180 degree from moving cam (2), be fixed on the fuselage (9) with water-sensitive paper circle (4), be in arm-to-arm from moving cam, before, rear shield (11) is positioned on the fuselage (9), fuselage (9) by a circle heat seal position (21) and air chamber heat seal together, gas cylinder connects screw socket (10) rotation by gas cylinder and installs.When manually inflating, spur manual cam (12) by manual stay cord (21), manually cam (12) rotates around straight pin (13) inverse clock, drive moves downward towards pin (14), after puncturing bottleneck towards pin (14), return under the effect of pull back spring (7), gas cylinder venting simultaneously, gas imports air chamber, life jacket gas expansion forming by fuselage (9).When inflating automatically, life jacket falls into the water, water-sensitive paper circle (4) is met aquation and is separated, and the strength of torsion spring (3) is released, and rotates around straight pin (13) clockwise from moving cam (2), drive moves downward towards pin (14), after puncturing bottleneck towards pin (14), return under the effect of pull back spring (7), gas cylinder venting simultaneously, gas imports air chamber, life jacket gas expansion forming by fuselage (9).

Claims

One kind to inflatable life jacket with manually, the gas filed charge valve of automated manner, it is characterized in that: Sealing shield ring, pull back spring, O type circle are installed on pin, be installed in the middle circular hole of fuselage towards pin, manually cam, be fixed on the fuselage by a straight pin from moving cam, two torsion springs, and with towards pin near, two torsion springs by backing pin with link to each other from moving cam, automatically cam driven torsion spring left-hand revolution 180 is spent, make the torsion spring compression, to be fixed on the fuselage from moving cam with water-sensitive paper ring, cover guard shield at back again.