CN2129263Y - Simple drowned-proof life-box with automatic inflating function - Google Patents

Abstract

The utility model relates to an automatic inflating drowning-proof lifesaving box, which comprises a box cover, a box body, a base, a plunger, a press-button, a compression spring, a sealing rubber washer, a gas bag, chemical tablets, a belt, etc. When a wearer comes across emergency during swimming process, the press-button is pressed to make the water enter a chamber which is filled with the chemical tablets from a water inlet hole on the base, and then the press-button is released. The water entering the sealed chamber reacts with the chemical tablets quickly and releases large quantity of gas. The inflated gas bag push away the box cover and produce enough buoyancy to bring a swimmer out of water surface. The utility model has the characteristics of small size, simple structure, convenient operation, etc.

Description

Simple drowned-proof life-box with automatic inflating function

The utility model relates to a kind of swimming lifesaving device, is particularly suitable for the swimmer and uses when emergency situation such as run into cramp, be short of physical strength, and takes place to prevent drowning incident.

Hot summer, swimming is old and young sports of all liking, existing life preserver such as buoy quoit, life jacket one class is essential to the people of first learning swim, but because their volumes are bigger, carry the speed and the posture of influence swimming, therefore the children of natatory adult and the natural disposition naughtiness of spreading often are unwilling to carry these life preservers, and this often just can cause contingency.Some that announce all attempted to overcome this potential danger about the patent of automatic inflation type lifesaving appliance already, but they all have following weak point:. 1. they or be used as the generation source of gas with liquefied gas or with two kinds of chemical liquids, therefore just higher to the requirement of manufacturing equipment; 2. install if repeated usage must be equipped with liquefied gas or chemical liquid simultaneously, so user's the additional consumption amount of money just increases; 3. make the gas filed start button of air bag (or band of gas) beginning less, the user who is among the fear generally was not easy accurately to touch in very short time; 4. to there be special chamber to deposit liquid.

The purpose of this utility model is to overcome above-mentioned deficiency and a kind of directly reacting with outer water of box and the Solid-state Chemistry tablet (10) in the box is provided and produces the automatic inflation type lifesaving appliance of gas.

Structure of the present utility model, principle and operation are with accompanying drawings.

Fig. 1 is the assembly drowing of an embodiment of the present utility model, has adopted half section.

Fig. 2 is the upward view of base embodiment illustrated in fig. 1 (3).

In the assembly drowing shown in Figure 1, the lid (1) of an embodiment of the utility model, box body (2), base (3), piston (4), button (5) together with the groove above it, depression or jut all can by plastic material (as high density polyethylene (HDPE) or linear low density polyethylene) commonly used respectively an injection molding form, also can add a certain proportion of colorant at plastic material, make First-aid box have chromatic colour, to strengthen its decorative effect.Air bag (9) can be made by sir-tight fabric or latex product, and it is red that its color is preferably, and the air bag (9) after inflation is when emerging like this, and conspicuous color is as distress signal by this.Ring seal packing ring (7), (8) are made by rubber, and wherein tightening seal washer (7) is to be bonded in the annular groove of piston (4) bottom, and the cross section of packing ring (7) is circular.The cross section of tightening seal washer (8) is a rectangle, the neck of the fastening air bag of pressure (9) of the jut of its mat base (3), prevent that air bag (9) may slippage from groove (17) after inflation, prevent that simultaneously gas is excessive with the space of the thread connection part of box body (2) from base (3).Button (5) has also adopted thread connection with the handle of piston (4).The material of compression spring (6) can be used carbon spring steel wires 65Mn and chrome-nickel steel.Rubber cradle (7) is exactly to utilize the bounce of compression spring (6) to be pressed on above the base (3), when not using First-aid box, prevent that the outer water of box from entering chamber (14), and when using First-aid box, the water that prevents to enter in the box overflows outside the box with the inlet opening (11) of gas on base (3) of tablet (10) reaction generation.This just requires the free height of compression spring (6) to be higher than to expose the height of the handle of the outer piston (4) of box, and its complete compression distance should be lower than the height of the handle that exposes the outer piston (4) of box and can press down so that allow the outer water of box enter chamber (14) to guarantee button (5).Solid tablet (10) be a kind of can with rapidly reaction and produce the chemical substance of a large amount of non-poisonous gases not soluble in water of water, as calcium carbide (being commonly called as calcium carbide).Can earlier the solid state chemistry material be ground into graininess, meet the sticking disk shape that is pressed into of stick that water promptly melts with a kind of then.This solid tablet (10) is placed in the top circular depression of piston (4) head admittedly.Also granular chemical substance directly can be contained in the crocus cloth pocket of a permeable band eyelet, and be placed on admittedly in the top circular depression of piston (4) head.The inboard core of the top of air bag (9) and lid (1) is sticked together, and adhesion area such as coin-size are unlikely to loss when lid (1) backs down it like this after air bag (9) inflation.It (is that the surface that they contact with each other has certain roughness that lid (1) and box body (2) adopt exasperate to connect, to increase friction force), this draw bail can guarantee that air bag (9) lid (1) when unaerated can be fastened on the box body (2) more firmly, can guarantee that again air bag (9) can back down lid (1) after inflation easily.

Fig. 2 is the upward view of base embodiment illustrated in fig. 1 (3).Tie up to the device that the belt (not providing) on base (3) two projections with holes in bottom (12) has scalable belt length, by regulating the length of belt, both First-aid box can be hung on the neck like this, also can tiltedly carry on the back piggyback.There is a circular open to run through in base (3) center, near the circumference of this opening, evenly offers 6 circular inlet openings (11) for the shank of piston (4).Because the button that this lifesaving appliance is provided with is bigger, the swimmer just can press the button (5) in all cases easily.For example available one hand is pressed, and also can with the hands press, and button (5) (or lid (1)) can also be attached to a certain position of health, presses lid (1) (or button (5)) with a hand then.Experimental results show that, when pressing the button (5), piston (4) and tightening seal washer (7) promote and disengaging base (3) top, piston (4) is simultaneously with folding air bag (9) jack-up upwards, enlarged the space of chamber (14), the outer water of box just can be rapidly inlet opening (11) from the base (3) pour in chamber (14), release button after 1～2 second (5), because the bounce of the compression spring (6) that is compressing, button (5) automatically resets rapidly, stick in the top that ring-shaped rubber packing ring (7) on piston (4) the lower annular groove just is pressed on base (3) again, sealing inlet opening (11), and prevent that gas is excessive.At this moment enter enough and tablet (10) reaction rapidly of water of chamber (14), it is full with air bag (9) to produce a large amount of gases, and the lifesaving effect is better.When not re-using this First-aid box, can press the button (5), gaseous emission in the air bag (9) is come out, the base (3) of outwarding winding is then cleaned reacted remnant and dry, and changes new tablet (10), screw on base (3) again, fold air bag (9), and build lid (1), use to wait until next time.

Hence one can see that, simple in structure, easy to carry so the volume of whole First-aid box can be very little because the utility model adopts the water outside solid tablet and the box to generate the source as gas, do not influence the speed and the posture of swimming, and it is also very convenient to operate.

Claims (5)

1, the anti-First-aid box of drowning of a kind of simple and easy automatic inflation type, comprise lid (1), box body (2), base (3), piston (4), button (5), compression spring (6), caulking gum packing ring (7) (8), air bag (9), chemical tablet (10) and belt, it is characterized in that having enough big space to put air bag (9), the tablet (10) after folding and treating priming charge by being chamber (13) that circular lid (1), box body (2), base (3) and piston (4) form; Lid (1) is fastened on the upper end of box body (2), and the jut of the lower end of box body (2) and base (3) adopts thread connection, and round button (5) also adopts thread connection with the handle of piston (4); Shank at piston (4) is set with the compression spring (6) that is not compressing fully as yet, and is fixed between base (3) and the button (5); Solid state chemistry tablet (10) is placed in the top depression of piston (4) admittedly; There is a circular open to run through in base (3) center, near the circumference of this opening, evenly offers 4～6 circular inlet openings (11) for the shank of piston (4); Ring-shaped rubber packing ring (7) sticks on the annular groove of piston (4) bottom; Offer an annular groove (17) at box body (2) inwall middle part, hitch is inside after tension for the lip of air feed capsule (9) valve; Ring-shaped rubber packing ring (8) is positioned between the neck of the jut of base (3) and air bag (9).

2, the anti-First-aid box of drowning of simple and easy automatic inflation type according to claim 1 is characterized in that the top and the lid of air bag (9) is sticked together, adhesion area such as coin-size.

3, the anti-First-aid box of drowning of simple and easy automatic inflation type according to claim 1, it is characterized in that offering a circular depression on the top of piston (4), be used for putting admittedly solid tablet (10), guarantee that simultaneously tablet (10) is immersed in an amount of water that enters chamber (14) fully after button (5) unclamps.

4, the anti-First-aid box of drowning of simple and easy automatic inflation type according to claim 1 is characterized in that being provided with two projections with holes (12) in the bottom of base (3), above the two ends of the belt of confession adjustable length tie up to respectively.

5, the anti-First-aid box of drowning of simple and easy automatic inflation type according to claim 1, it is characterized in that the annular projection part on base (3) and the button (5), the position that is used for fixing compression spring (6), and the degree of depth that control button (5) is down pressed is to be unlikely to influence the water intake velocity of inlet opening (11) on time under the assurance button (5); Base (3) is gone up the guide groove that annular projection moves as piston (4) simultaneously.

Images