CN2374451Y - Inflation switch - Google Patents

Abstract

The utility model relates to an automatic, manual switch that aerifys releases the gas in the small-size gas storage steel bottle of disposable use in the gasbag with manual or automatic mode, relates to the lifesaving equipment field, and it mainly comprises fuselage (21), frame (9), towards needle (11), back protection casing (13), preceding protection casing (23), manual cam (16), cam subassembly (15), paper circle frame (4), pressure spring (19), torsional spring (14), (18), hook (7), waterproof piece (20), sealing member etc. when the switch soaks several seconds in water, the switch will automatic charging, also can stimulate manual cam to aerify.

Description

Gas-filled switching tube

The utility model is a kind of automatic, manual gas-filled switching tube, and the gas in the disposable small-sized gas storage steel cylinder is discharged in the air bag with manual or automated manner, relates to the life field.

At present, the inflatable life jacket that uses on fighter plane, civil aircraft, the naval vessel, most of adopt manually to blow or draw back gas-filled switching tube the gas of small-sized gas storage steel cylinder is charged into the life jacket air bag; The liferaft of using on the naval vessel, most of hydrostatic pressure switch that uses has only after sinking to the underwater certain depth and could work, all there is weak point in these inflation modes, particularly under the emergency state, the user of service is not able to swim or loses under the situation of ability, can not give full play to its effect; The oxter buoyant apparatus of the fighter-pilot of air force equipment is a kind of full automaticity inflatable life jacket, but because it is to utilize circuit theory automatically, need to change battery, and the contact is many, easily oxidation, and along with the increase of period of service, performance reliability descends thereupon; Drop at present in the marine site, free-floating is in the anti-submarine detector on sea, and also there is above shortcoming in its automatic gas-filled switching tube, promotes with use to be restricted.

As long as the purpose of this utility model just is to provide a kind of switch to immerse in the water, can be in the several seconds switch of gas in the automatic release gas cylinder, this switch is without battery, without circuit, unfavorable with hydraulic pressure, air pressure, and along with the prolongation of period of service, inflation performance also will increase automatically.

The utility model is achieved in that disposable high-pressure gas bottle is installed on the switch,, presses close to gas cylinder towards pin (11) tip and seals on same axle center towards pin (11) and gas cylinder; In the time of manually, manually cam (16) promotes to advance towards pin (11), punctures and seals, and reaches the inflation purpose; When inflating automatically, because the immersion back disconnects under torsion spring (14), (18) power effect around the paper on the paper circle frame, hook (7) motion, assembly (15) releases cam, cam pack (15) promotes to move towards pin (11) under torsion spring (14), (18) power effect, puncture and seal, reach automatic inflation purpose.

Advantage of the present utility model is: novel structure, and dependable performance, cost is low, and volume is little, and is in light weight, produces simply, and easy to use, inflationtime can be set automatically, and reusable expense is low.

Description of drawings: Fig. 1 is a shape assumption diagram of the present utility model, and it mainly is made up of towards pin, (12) O RunddichtringO, (13) back protective cover, (14) torsion spring, (15) cam pack, (16) manual cam, (17) great circle pin, (18) torsion spring, (19) stage clip, (20) flashing, (21) fuselage, (22) seal ring, (23) preceding protective cover etc. (1) screw, (2) stifle, (3) seal ring, (4) paper circle frame, (5) catch, (6) roundlet pin, (7) hook, (8) seal ring, (9) support, (10) Sealing shield ring, (11).

Below in conjunction with drawings and Examples the utility model is described in further detail: go up around the stronger paper of the suction of the last suitable number of turns at paper circle frame (4), with cam pack (15) twisting torsion spring (14), (18), make hook (7) hook cam pack (15), on hook (7), put around the paper circle frame (4) of paper, restriction hook (7) motion makes operatorless device be in arm-to-arm; Under auto state, after switch immerses in the water, paper on paper circle frame (4) absorbs water, and the tension force of paper descends rapidly, and the hook (7) that hooks cam pack (15) will be broken through the restriction of paper circle under the effect of torsion spring power, produce and move, cam pack (15) is released, and under the effect of torsion spring (14), (18), cam pack (15) will promote to move towards pin (11), puncture gas cylinder towards pin (11) and seal, reach automatic gas filed purpose; Under the manually operated situation, spur manual cam (16), be pushed towards pin (11), puncture gas cylinder towards pin (11) and seal, begin inflation.

Claims (2)

1, a kind of gas-filled switching tube, in fuselage, the perpendicular line direction is pressed Sealing shield ring, stage clip, towards pin, the O RunddichtringO, manual cam, cam pack, the assembled in sequence of torsion spring, and pass manual cam with the great circle pin, cam pack, torsion spring is fixed on the fuselage, hook is fixed on the fuselage with the roundlet pin, the horizon direction is pressed stifle, pad, fuselage, pad, the order of support with two screw retention on fuselage, the paper circle frame that is wound with paper is enclosed within on the hook, before, back protective cover covers on the fuselage, it is characterized in that: an end hook of hook buckle is on cam pack, the torsion spring load, the paper circle frame that is wound with paper is enclosed within the hook other end, cam pack, manual cam, torsion spring is same center of rotation with the great circle pin.

2, gas-filled switching tube according to claim 1 is characterized in that: cam pack is by identical two parallel compositions, and the gap is left in the centre, and manually cam is inserted between the gap; Torsion spring is fixed on the cam pack; Paper circle frame can freely separate the circle synthesis type by identical two, is wound with paper in the outer ring; Hook can be around the swing of roundlet pin, and the end that hook is arranged is an inclined-plane.