CN2557420Y

CN2557420Y - Life-saving device for swimming

Info

Publication number: CN2557420Y
Application number: CN 01253936
Authority: CN
Inventors: 曾经雄
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-09-28
Filing date: 2001-09-28
Publication date: 2003-06-25
Anticipated expiration: 2011-09-28

Abstract

The utility model relates to a life-saving device for swimming and for the self-rescuing during the accident in swimming. The device takes a shape of a hollow flat cylinder. During swimming, the device is fixed on the waist with an appropriate waist belt so as to be used in the case of an accident. Compared with the existing common life-saving devices such as inflation type rubber life buoys, inflation type life jackets or inside foam plastic life jackets, etc. which are used during swimming, the device of the utility model encounters small resistance, does not affect the swimming speed and is safer and more reliable. During the danger, a hand wheel 11 is revolved with an angle of 90 degrees, the T-shaped head of a screw roc 12 is separated upwards from the bottom of a cap 22, an upper shell 2 is separated from a lower shell 1, an inner-refill 4 is inflated and extended through the aeration via a soft tube 16 and a single-direction valve 15, an outer-refill 3 is simultaneously extended to protect the inner-refill, and a thin steel thread 21 achieves the greatest expansion degree. The buoyancy generated by the device can protect the swimmer from being drowned.

Description

A kind of swimming lifesaving device

One, affiliated technical field

The utility model is a kind of swimming lifesaving device, and it belongs to the life saving apparatus field.

Two, background technology

The at present common life jacket that inflatable rubber buoy quoit, inflatable life jacket or built-in cork (or foamed plastic) are arranged for buoyant apparatus in the water of swimmer's use etc.These utensils can make the people keep afloat, and are unlikely drowned, but the resistance in water is bigger, the speed of influence swimming.

Three, content introduction of the present utility model

This swimming lifesaving device is for being used to save oneself the swimmer of rivers,lakes and seas when the accident situation takes place when exhausted (for example knot or near).But the main portion of this swimming lifesaving device is the hollow oblate cylinder body shape of folding.During swimming, this buoyant apparatus that the swimmer will be closure state is fixed between waist (can be in abdomen before or behind) with suitable waistband, uses when urgent.

Four, description of drawings

See also Figure of description.Fig. 1 and Fig. 2 are respectively the assembly drawing of this swimming lifesaving device and the section drawing when opening.Fig. 3, Fig. 4 are respectively the detail drawings of screw rod and spiral cover, in order to further specify principle of work.

Five, the specific embodiment

Now mainly its structure and principle of work are described by Fig. 1.

But this swimming lifesaving device is the hollow flattened cylindrical shape (seeing also Fig. 1) of folding.Lower house 1, upper shell 2 and loam cake 7, spiral cover 22 all are that, intensity good engineering plastics relatively light with proportion are made.Utilize nut 10, screw rod 12, upper shell 2 and lower house 1 closely are pressed together by loam cake 7, spiral cover 22.

Rubber sheet gasket

18,6 and seal ring 14 all seal, and anti-sealing enters formed space between the lower house.

Inner bag 4 and outer courage 3 all are the thin circular cylinder shape.Inner bag is made with rubber or latex, and its appearance profile is done waviness, so that flexible and inflation.Outer courage is made with nylon one class material, and its appearance profile is made collapsible shape, so that flexible.Outer courage plays the protection inner bag simultaneously.The upper and lower end face of inner bag and outer courage is separately fixed on the inner end surface of upper shell 2 and lower house 1 by two compacting rings 19.

Handwheel 11 is pentacle (also being made of plastics), in screw is arranged.It is tightened mutually at the top and the nut 10 of screw rod 12, and nationality helps two holding screws 13 to make it together fastened to each other.The bottom of screw rod 12 (stub end) is cut into T-shaped head (seeing Fig. 3, for reference) by two parallel planes at a distance of 4 millimeters.The upper end of spiral cover 22 have one wide be 4.4 millimeters elongated hole (seeing Fig. 4, for reference), allow the T-head of screw rod 12 to pass.After the T-head of screw rod passed the elongated hole of spiral cover 12 from top to bottom, make it turn over 90 degree again, promptly blocked by the bottom of spiral cover.Screw rod 12 must be revolved again and turn 90 degrees (suitable, anticlockwise direction all can) it can withdraw from (this fixing and lamp holder of the somewhat similar insert type bulb of mode of throwing off and the connection between the lamp socket) from the elongated hole of spiral cover.

Compression spring 8 and ring washer 24 make screw rod 12 be in certain relative position all the time in upper shell.The effect of seizing wire 21 is: when buoyant apparatus was in closure state, seizing wire was free bent state; Throw off when upper and lower shell, when inside and outside courage was elongated, seizing wire was straightened, thereby had limited the maximum opening width (seeing also Fig. 2) between the upper and lower casing.

The effect of vent plug assembly 5 is: when buoyant apparatus when opening is compressed to closure state, need to discharge the little air between the inside and outside courage.At this moment twist the nut and the in-to-in screw thereof of vent plug assembly, just can allow air pass through and discharge.After making upper and lower casing closed and fixing, again the screw of vent plug assembly and nut are tightened, keep sealing.

Air inlet valve assembly 15 is a check valve (air inlet valves of some similar bicycle tube).Can be by it to inner bag 4 inflations (unscrew its nut joint, just can exit).The 16th, plastic hose (about 40 centimeters of length).During swimming, the free end of this flexible pipe is clipped on the special hasp of waistband.Before water is swum under the swimmer, earlier stopper 17 is pulled up from the termination of plastic hose, make with gas filled device (or with mouthful blow) to remain with a not too big positive pressure (being about 20 to 30 centimeter water columns) in the inner bag, thereby make upper and lower casing that the open tendency of nature is arranged all the time, and then stopper beyond the Great Wall.

When the swimmer runs into the accident situation, turn the handwheel 11 of buoyant apparatus with hand, make screw rod 12 rotate 90 degree (suitable, anticlockwise direction all can), the major part of screw rod just skids off from the long shape hole of spiral cover, and upper and lower casing begins to open.Bite away stopper 17 from the leave behind free end of plastic hose 16 of waistband this moment, blows in flexible pipe, and inner bag just can continue inflation, opens up into maximum opening until buoyant apparatus.The buoyancy that buoyant apparatus produces can make the swimmer be unlikely to sink, and its head is surfaced all the time and unlikely drowning.Just can send out a signal for help then, wait for rescue.

This buoyant apparatus can be made large, medium and small different specification, to adapt to different stature personnel's needs.

Respectively wear a buoyant apparatus as belly and back at waistband, then lifesaving effect is better.Owing to be in the waist and belly position, can not hinder strokes.And its buoyancy is a bit larger tham deadweight when closure, can make swimming comparatively light.

This buoyant apparatus is made the form that has inner bag and outer courage concurrently, and outer courage shields to inner bag.And, even both one of because of unexpected damaged, can not influence the lifesaving effect, so safe and reliable yet.

Claims

1, a kind of swimming lifesaving device, it is characterized in that, but it is the hollow flattened cylindrical shape of folding, mainly form a flat hollow cylinder of osed top by lower house (1), upper shell body (2) and loam cake (7), spiral cover (22) etc., utilize nut (10), screw rod (12), upper shell (2) and lower house (1) closely are pressed together by loam cake (7), spiral cover (22);

Between lower house and upper shell, inner bag (4) and outer courage (3) are arranged, all be cylindric, inner bag is made with rubber or latex elastomeric material, and profile is done waviness, and outer courage is made folding form with materials such as nylon.

2, swimming lifesaving device according to claim 1 is characterized in that, has a handwheel to be fixed on the top of screw rod (12), and screw rod (12) is with the T-shaped head of its lower end, passes the elongated hole of spiral cover (22) and is stuck.

3, swimming lifesaving device according to claim 1 is characterized in that, there is the seizing wire (21) of two control opening widths inside.

4, swimming lifesaving device according to claim 1 is characterized in that, the outer face of lower house has two little projectioies, in the finedraw of wearing waistband is arranged.