CN105431348A

CN105431348A - Rope-controlled aquatic life-saving apparatus

Info

Publication number: CN105431348A
Application number: CN201380078229.0A
Authority: CN
Inventors: 王湛
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-07-16
Filing date: 2013-10-15
Publication date: 2016-03-23
Anticipated expiration: 2033-10-15
Also published as: CN105431348B; WO2015007024A1; CN103318389B; CN103318389A

Abstract

Disclosed is a rope-controlled aquatic life-saving apparatus, comprising a life-saving float body (1), a guiding rudder plate (2) and a rescue rope (6), wherein the guiding rudder plate (2) has a pressure-bearing upstream face. When the rope-controlled aquatic life-saving apparatus is used on the water, the life-saving float body (1) floats on the surface of the water, the guiding rudder plate (2) is provided on the life-saving float body (1) and is at least partially submerged in the water, the included angle between the pressure-bearing upstream face and the surface of the water is between 30 degrees and 150 degrees, one end of the rescue rope (6) is connected on the life-saving float body (1) and the other end of the rescue rope (6) is held by a rescuer. By providing the guiding rudder plate (2) on the life-saving float body (1), the force of impact of the water current is used to navigate the life-saving float body (1) to a required position on the water to enable the person being rescued to grab on. The rope-controlled aquatic life-saving apparatus has a simple structure, is low cost and is convenient to put into effect, can be individually and flexibly operated by a user, and has strong applicability.

Description

Rope control aquatic life-saving equipment

Technical field

The present invention relates to a kind of lifesaving appliance, more particularly to a kind of rope control aquatic life-saving equipment, it can be lift-buoy（Such as lifebuoy）It is accurate to deliver to exceeding well over the distance directly jettisoninged.

Background technology

At present, water survival relies primarily on ship and lifebuoy to implement the work of lifesaving.The general adult's lifebuoy of 2.5 kilogram weights of standard typically can only achieve several meters to more than ten meters when jettisoninging, therefore can only rescue close distance.When run into the flow rate of water flow such as flood it is larger when to realize it is accurate jettisoning it is more difficult, even if sometimes it also occur that jettisoning position in place and saved person fails to catch lifebuoy in time so that lifebuoy is washed away so as to causing rescue failure.

Accurately deliver lifebuoy at a distance and problem is rescued in turbulent water and never have simple and effective solution.Mainly there are two classes on the remote patent for delivering lifebuoy at present, one class is the lifebuoy of unaerated of being jettisoninged with compressed gas, gunpowder or mechanical spring, lifebuoy is jettisoninged automatic inflating after water, is all such product as disclosed in Chinese patent CN101982371A, CN201842236U and CN202609055U etc..These products are not all suitable for lifesaving in rapid stream, and its is complicated, it is difficult to operate, only once throwing machine meeting, if failure of once jettisoninging needs to spend the long period to withdraw the lifebuoy dished out and load compressed gas, gunpowder or set mechanical spring to be jettisoninged again.Another kind of is that as disclosed in the patents such as CN202609055U and CN202439834U, this product is not suitable for turbulent water equally, and it controls difficulty, and maintenance cost is very big, and reliability is low in the way of electric remote control is from the lifebuoy that navigates.

In addition, Chinese patent CN202368768U （Torrent rescue system）Disclose and connection inflatable dinghy in riverbank pedestal one end is fixed with compound rod one end, compound rod is rotated around pedestal using flood impulsive force, implement to rescue with nylon rope, pulley and winch control compound rod rotating speed.But, the utility model is complicated, and volume weight is big, transport difficult, and assembling is time-consuming, it is necessary to a group of people's cooperating.

Therefore, those skilled in the art is directed to developing a kind of rope control aquatic life-saving equipment, and simply and easily accurate control lifebuoy position is realized using rescue rope, safety door hook, locating ring and guiding rudder plate.

The content of the invention

In view of the drawbacks described above of prior art, the technical problems to be solved by the invention are to provide a kind of rope control aquatic life-saving equipment, and it is reliable convenient, can be subjected to stormy waves, and can finely tune lifesaving appliance placement position on demand.

To achieve the above object, the invention provides one kind rope control aquatic life-saving equipment, it is characterised in that including lift-buoy body, is oriented to rudder plate and rescue rope, the guiding rudder plate has stress upstream face；

When the rope control aquatic life-saving equipment is used on the water, the lift-buoy body is swum on the water surface, the guiding rudder plate is arranged on the lift-buoy body and is immersed at least in part in water, the angle of the stress upstream face and the water surface is between 30 ° to 150 °, one end of the rescue rope is connected on the lift-buoy body, and the other end of the rescue rope is gripped by rescuer.

Further, it is provided with the lift-buoy body on locating ring, the rescue rope and is provided with safety door hook, the rescue rope is by the mating connection of the safety door hook and the locating ring on the lift-buoy body.

Further, the rope control aquatic life-saving equipment is not on the water in use, the guiding rudder plate is also disposed on the lift-buoy body；And the rope control aquatic life-saving equipment is described when not using on the water is oriented to that described when rudder plate is used on the water relative to the position of the lift-buoy body with the rope control aquatic life-saving equipment to be oriented to rudder plate identical relative to the position of the lift-buoy body.

Alternatively, the rope control aquatic life-saving equipment is not on the water in use, the guiding rudder plate is also disposed on the lift-buoy body；And the rope is controlled the guiding rudder plate when guiding rudder plate is used on the water relative to the position of the lift-buoy body with the rope control aquatic life-saving equipment when aquatic life-saving equipment is not used on the water and differed relative to the position of the lift-buoy body.

Alternatively, the rope control aquatic life-saving equipment is not on the water in use, the guiding rudder plate is not disposed on the lift-buoy body.

Further, it is described guiding rudder plate by riveting, screw is fixed or glue bond is connected on the lift-buoy body.

Alternatively, the guiding rudder plate and described this body by integral forming of lift-buoy.

Alternatively, described one end for being oriented to rudder plate is hinged to the lift-buoy body, and the guiding rudder plate can be rotated around the hinge relative to the lift-buoy body；The rope controls guiding rudder plate when aquatic life-saving equipment is not used on the water and fits in the lift-buoy body；Bayonet socket is additionally provided with the lift-buoy body, the rope control aquatic life-saving equipment is not on the water in use, the bayonet socket occlusion guiding rudder plate is so that the guiding rudder plate changes relative to the position of the lift-buoy body.

Further, multiple guiding rudder plates are provided with multiple bayonet sockets for being engaged the multiple guiding rudder plate respectively by multiple described are hingedly connected on the lift-buoy body, the lift-buoy body respectively；The rope controls the multiple guiding rudder plate when aquatic life-saving equipment is not used on the water and all fits in the lift-buoy body；The rope control aquatic life-saving equipment is on the water in use, at least one described bayonet socket is engaged at least one described guiding rudder plate.

Alternatively, the rope control aquatic life-saving equipment is on the water in use, the guiding rudder plate is bundled on the lift-buoy body by bandage or rope；Or the guiding rudder plate is fixed on the lift-buoy body by fixture.

Further, having on the lift-buoy body has jut on perforate, the guiding rudder plate；The rope control aquatic life-saving equipment is on the water in use, the jut being oriented on rudder plate is embedded in the perforate on the lift-buoy body.

Further, the stress upstream face is one or is equivalent to an equivalent rectangular plane, and the rectangle plane has first side and second side, and the equivalent rectangular plane has the first equivalent side and the second equivalent side；The locating ring is arranged on the sidepiece of the lift-buoy；When the stress upstream face is the rectangle plane, the distance of the locating ring to the first side and the second side is unequal；When the stress upstream face is equivalent to the equivalent rectangular plane, the distance of the locating ring to the described first equivalent side and the second equivalent side is unequal.

Further, the locating ring includes two locating rings；When the stress upstream face is the rectangle plane, the distance of one of locating ring to the first side is smaller than the distance to the second side, and the distance of another locating ring to the second side is smaller than the distance to the first side；When the stress upstream face is equivalent to the equivalent rectangular plane, the distance of one of locating ring to the described first equivalent side is smaller than the distance to the described second equivalent side, and the distance of another locating ring to the described second equivalent side is smaller than the distance to the described first equivalent side.

Further, the safety door hook is fixedly connected on one end of the rescue rope；The rope control aquatic life-saving equipment is on the water in use, the safety door hook and a cooperation in described two locating rings.

Alternatively, the safety door hook includes the first safety door hook and the second safety door hook, and first safety door hook is fixedly connected on one end of the rescue rope, and second safety door hook is fixedly connected on the rescue rope；The rope control aquatic life-saving equipment is on the water in use, first safety door hook coordinates and second safety door hook and another cooperation in described two locating rings with one in described two locating rings.

Further, the lift-buoy body is lifebuoy.

Further, present invention also offers a kind of application method for control aquatic life-saving equipment of restricting, applied to described rope control aquatic life-saving equipment, it is characterised in that including：

The rescuer, relative to the position of oneself and the direction of current, one in the safety door hook and described two locating rings is coordinated according to by rescuer；

Determine position of the guiding rudder plate relative to the lift-buoy body when guiding rudder plate is used on the water relative to the position of the lift-buoy body for the rope control aquatic life-saving equipment；

Jettisoning it is described rope control aquatic life-saving equipment, make the lift-buoy body bubble through the water column and it is described guiding rudder plate be immersed in water；

The rescuer discharges the rescue rope, the rope control aquatic life-saving equipment is gone under the promotion of the current to described by rescuer's drift.

Alternatively, present invention also offers a kind of application method for control aquatic life-saving equipment of restricting, applied to described rope control aquatic life-saving equipment, it is characterised in that including：

The rescuer, relative to the position of oneself and the direction of current, one in second safety door hook and described two locating rings is coordinated according to by rescuer, and then by another cooperation in first safety door hook and described two locating rings；

The rescuer discharges rescue rope, the rope control aquatic life-saving equipment is gone under the promotion of the current to described by rescuer's drift；

It is described to be caught by rescuer after the rope control aquatic life-saving equipment, release second safety door hook and one cooperation in described two locating rings；

The rescuer reclaims rescue rope, the rope control aquatic life-saving equipment is floated back with described by rescuer to the rescuer under the promotion of the current.

Further, it is oriented to rudder plate present invention also offers one kind, it is characterised in that including stress upstream face；Bandage, rope and/or fixture are connected with the guiding rudder plate, the bandage, rope and fixture are used to the guiding rudder plate being fixed on lift-buoy body；When the lift-buoy body is swum on the water surface, the guiding rudder plate is immersed in water at least in part, and the angle of the stress upstream face and the water surface is between 30 ° to 150 °.

Further, described one end for being oriented to rudder plate has jut, and the jut is used to coordinate with the perforate on the lift-buoy body.

In one embodiment, present invention rope control aquatic life-saving equipment passes through in lift-buoy body（Lift-buoy body is preferably universal standard lifebuoy, referring to standard：GB4302-2008）On guiding rudder plate is installed in fixed or folding or dismountable mode, being oriented to rudder plate has for rectangle plane or is equivalent to the stress upstream face of equivalent rectangular plane（The equivalent stress for referring to both herein is identical with torque）；Two locating rings, two locating rings are set on the sidepiece of lift-buoy body（First locating ring and the second locating ring）It is fixedly installed at normal two symmetric positions at an angle of the center of the rectangle plane relative to the stress upstream face for being oriented to rudder plate, in alternate embodiments, the position-adjustable of locating ring；Locating ring to be oriented to rudder plate stress upstream face rectangle plane two sides（First side and second side）Distance it is unequal, or, locating ring to be oriented to rudder plate stress upstream face equivalent rectangular plane two sides（First equivalent side and the second equivalent side）Distance it is unequal；One end of rescue rope is provided with safety door hook, and the other end is used to grip for rescuer；Rescue rope is by the mating connection of safety door hook and locating ring to lift-buoy body, in alternate embodiments, rescue rope can directly be bundled on locating ring or lifesaving appliance floating body body on.Rope control aquatic life-saving equipment is on the water in use, lift-buoy body is swum on the water surface, and guiding rudder plate is immersed in water and its stress upstream face is between 30 ° to 150 °, it is preferred that the stress upstream face is perpendicular to the water surface or is approximately perpendicular to the water surface.

Due to locating ring and the rectangle plane for the stress upstream face for being oriented to rudder plate（Or equivalent rectangular plane）Two sides（Or equivalent side）Distance it is unequal, under the percussion of current, lift-buoy body by current to be oriented to the active force and current of rudder plate to the active force of lift-buoy to make a concerted effort be to deviate riverbank, thus rescuer can make lift-buoy body drift out bank on bank with certain speed release rescue rope, and Xiang Shuizhong's is gone by rescuer's drift；As long as and rescue rope length is enough, rescuer is by controlling the length of rescue rope and adjusting in the position on bank, the rope control aquatic life-saving equipment of the present invention can be accurately delivered to the distance for exceeding well over lift-buoy body of directly jettisoninging in the way of similar kiteflying, and its position can be finely tuned on demand, so that lift-buoy body is accurately arrived at by rescuer.

The stress upstream face for being oriented to rudder plate can be that plane can also be curved surface, can be rectangle, round rectangle, trapezoidal, triangle, semicircle, ellipse, half elliptic, polygon or irregular shape, preferably, stress upstream face is rectangle plane, and the fan ring plate that rudder plate is preferably round rectangle flat board or overlapped with lifebuoy partial shape is oriented to from practical and safety consideration.

Various flexible rope-like materials can be used in rescue rope, preferably by rescue rope in floatable 4 millimeters to 8 millimeters polypropylene fibre high intensity dedicated waters（Referring to specification：DB37/T 1989-2011）.

Lift-buoy body can be that all can provide the object of buoyancy, such as variously-shaped foamed plastics, woodwork, tire and hollow body.To reduce cost using inventory and technology and realizing the rescue of safety, it is preferable that lift-buoy body uses universal standard lifebuoy（Referring to standard：GB4302-2008）, following description herein and accompanying drawing illustrate the structure and application method of the present invention by using lifebuoy as the example as lift-buoy body.If providing buoyancy using the principle same with the present invention, i.e. lift-buoy body during using other objects beyond lifebuoy as lift-buoy body, it is oriented to rudder plate and lateral thrust is provided（Current are to the direction of a component of the active force of guiding rudder plate perpendicular to water (flow) direction）, rescue rope provided to the pulling force of lift-buoy body, then this kind of application is also included in the scope of the present invention.

Locating ring is the stress point for the connection member connection for by the direct bondage of rescue rope or passing through such as safety door hook, can be rigid annular body, such as quoit, or flexible annular body, such as high-strength nylon fake, in addition, the perforate on lift-buoy body is also locating ring alternative form.

Although rescue rope can be directly strapped on locating ring or lift-buoy body, in order to reduce rescue time, it is preferable that install safety door hook in one end of rescue rope, such as clip buckle type safety hook, safety door hook rapidly can coordinate rescue rope being connected on lift-buoy body with locating ring.In alternate embodiments, the sidepiece of lift-buoy body can set more than two locating ring, rescue rope is connected at the diverse location on lift-buoy body.

The application method of above-mentioned rope control aquatic life-saving equipment is as follows：

Step 1: rescuer, relative to the position of oneself and the direction of current, safety door hook and the first locating ring or the second locating ring is coordinated according to by rescuer.Rescuer judges that the locating ring of selection correct position can have a variety of in the method coordinated with the safety door hook on rescue rope, such as, by force analysis, a kind of better simply determination methods are：Rescuer stands on bank towards by rescuer, it is flat hold lift-buoy body and ensure thereon be oriented to rudder plate in the lower section of lift-buoy body and the rectangle plane for the stress upstream face for being oriented to rudder plate（Or its equivalent rectangular plane）Parallel to water (flow) direction, by the rectangle plane（Or equivalent rectangular plane）Two sides（Or equivalent side）It is defined as upstream edge and downstream side, then the direction from upstream edge to downstream side is water (flow) direction, the distance for choosing upstream edge is less than the locating ring to the distance of downstream side as the locating ring coordinated with the safety door hook on rescue rope, if satisfactory locating ring has multiple, then can again it be elected according to water velocity, for example in the faster water of current rescue can with the nearer locating ring of chosen distance upstream edge, and rescued in the slower water of current then can be with chosen distance upstream edge farther out locating ring.

Position of the rudder plate relative to lift-buoy body is oriented to Step 2: determining to be oriented to when rudder plate is used on the water relative to the position of lift-buoy body for rope control aquatic life-saving equipment, determine that the guiding rudder plate foldably installed is opened and fix in position, the guiding rudder plate removably installed is installed in place.

Step 3: rope control aquatic life-saving equipment of jettisoninging, makes lift-buoy body bubble through the water column and be oriented to rudder plate and is immersed in water.

Step 4: rescuer discharges rescue rope, rope control aquatic life-saving equipment is set to be gone under the promotion of current to by rescuer's drift.Wherein, when water flow velocity is bigger, the time of lift-buoy body drift boat in place is shorter, and rescue using effect is better.In torrent waters, as long as rescuer station is in upstream suitable distance（Relative to by rescuer）, by with less than the speed of current release rescue rope, it is possible to which quick lift-buoy body of delivering is to specified location（At rescuer）.It still can be used in water velocity relatively slow or standing water rescue, be specially：Enter water delivering lift-buoy body by the slightly remote place in the downstream of rescuer, rescuer is upstream run, rescue rope is discharged when running, rope speed is released less than running speed, the distance of lift-buoy body offshore can be controlled by releasing rope length degree and running speed by control.It is not easy the position of fine setting lift-buoy body in totally stationary waters, can moderately increases and release rope length degree, makes connection lift-buoy body and the rescue rope of rescuer inswept by rescuer, catch rescue rope can be along rope grip to lift-buoy body by rescuer.

The farthest rescue distance of the rope control aquatic life-saving equipment of the present invention with rescue rope length, be oriented to rudder plate stress upstream face area, with the position of locating ring that rescue rope is connected, the speed of current, the water imbibition of rescue rope, the unit weight of rescue rope, the height of bank and to rescue the factors such as skill related.For example, rescue rope water imbibition is bigger, weight is bigger after rescue rope gets wet, its sag of chain is also bigger, when rescue rope is immersed in water, and the resistance of water can change the collimation of rescue rope, it is in cycloid shape to make the skew of its downstream, thus has a strong impact on the pulling force angle of rescue rope.Again for example, the area and current for being oriented to the stress upstream face of rudder plate are directly proportional to the impulsive force for being oriented to the stress upstream face of rudder plate, the tension force of the too small then rescue rope of area is inadequate, it is difficult rescue rope exceptionally straight, hanging down influences direction of pull in water, the pulling force of the too big then rescue rope of area is excessive, increase rescue personnel's control difficulty.In rescue rope in the case of tightening, the angle that the position of locating ring preferably is it with the normal direction of the stress upstream face at the line for the barycenter for being oriented to rudder plate and the barycenter（First angle）Between about 10 ° to 60 °, each position is applicable different water velocities, can choose on demand.In the larger waters of flow velocity such as flood, current are quite big to the impulsive force for being oriented to the stress upstream face of rudder plate, the locating ring effect for selecting the first angle larger is preferable, for example, the first angle of preferred locating ring is about 45 ° during flow velocity about 2 meter per second, about 30 ° of first angle of preferred locating ring during flow velocity about 1 meter per second, selects suitable locating ring to be connected the pulling force that can reduce rescue rope with rescue rope and can quickly float and puts lift-buoy body in place.In standing water or flow velocity compared with bay, selection first angle is preferable for the rescue effect of 10 ~ 20 ° of locating ring acquisition, and this can reduce the distance of running of rescuer.Usually, the locating ring that two the first angles are 30 ° is set in the sidepiece of lift-buoy body, this goes for the Quick rescue of most of river flows, furthermore it is possible to set the locating ring of one or more adjustable positions to be used for special case again（Such as rescue in hydrostatic rescue, the rescue in the low-down waters of water velocity or water velocity very big waters）.Set the locating ring of adjustable position there are a variety of methods on lift-buoy body, tie up locating ring on the correct position of lift-buoy body for example, tying up button using back-to-back VELCRO as needed.

Experiment shows, 1 In the state of meter per second or so flow velocity and riverbank is high 7 meters, it is oriented to about 1000 square centimeters of the area of the stress upstream face of rudder plate, it is 30 ° of locating ring connection rescue rope to select first angle, is enough a universal standard lifebuoy drift to be put into about 60 meters of remote places of offshore using rescue rope in 4mm high intensity polypropylene fibre dedicated waters 100 meters long.

In the second embodiment, the guiding rudder plate of the rope control aquatic life-saving equipment of the present invention is folding, and for the ease of laying, carrying and preserve, and can be used as the lift-buoy body without drift boat function, set fluted on lift-buoy body, it is embedded for the guiding rudder plate that aquatic life-saving equipment is controlled in the rope without using state, is thus oriented to rudder plate and fits in lift-buoy body.The one end for being oriented to rudder plate is hinged to lift-buoy body, be oriented to rudder plate can around hinge rotated relative to lift-buoy body, bayonet socket is additionally provided with lift-buoy body, being oriented on rudder plate has ledge.Rope control aquatic life-saving equipment is oriented to the ledge of rudder plate to make guiding rudder plate relative to the position of lift-buoy body not change in use, being engaged by bayonet socket on the water, i.e., fixed relative to lift-buoy body.Reinforcement is provided with the position that the ledge is connected with guiding rudder plate, to improve strength and stiffness when being oriented to rudder plate stress.Multiple folding guiding rudder plates as described above can be set on lift-buoy body, this is described in the 6th embodiment of the present invention, each of which is oriented to rudder plate all by being hingedly connected to lift-buoy body, correspondingly lift-buoy body is provided with multiple bayonet sockets, and being respectively used to occlusion, each is oriented to so that it is fixed relative to lift-buoy.It can determine to use the number for being oriented to rudder plate according to water velocity when using, and then change the total effective area for the stress upstream face for being oriented to rudder plate.The total effective area for being oriented to the stress upstream face of rudder plate is the rectangle plane of the stress upstream face of the guiding rudder plate in open mode（Or equivalent rectangular plane）Sum.

In the 3rd embodiment, the guiding rudder plate of rope control aquatic life-saving equipment of the invention is dismountable, and guiding rudder plate therein is with bondage or ties up button mode and is fixed on lift-buoy body, is oriented to rudder plate and has and one or more caters to lift-buoy body（It is standard lifebuoy in the present embodiment）Base, be connected with one or more flexible or rigid bondages on base and tie up buckle structure, such as bandage or rope, rudder plate can be directed to and be bundled in securely on lift-buoy body and guiding rudder plate is fixed relative to lift-buoy body.Preferably, base or bondage, which are tied up, jut on buckle structure, such as locating pin or alignment pin, it can be embedded in the perforate on lift-buoy body, this can be avoided being oriented to the movement of rudder plate and the generation of bondage device relative to lift-buoy body, for example, occur the circumferential and axial slip along lifebuoy circle body section.

In the 4th embodiment, the guiding rudder plate of the rope control aquatic life-saving equipment of the present invention is dismountable, and guiding rudder plate therein has one or more protuberances, such as locating rod or location lug, correspondingly there are one or more perforates on lift-buoy body, preferably perforate is through hole.Inserted by being directed to the locating rod or location lug of rudder plate in the perforate on lift-buoy body and through lift-buoy body, and by being laterally inserted into alignment pin at the position for being oriented to the perforate that lift-buoy body is exposed on the locating rod of rudder plate or the top of location lug, the locating rod or location lug of guiding rudder plate is fixed relative to lift-buoy body, and guiding rudder plate is fixed relative to lift-buoy body.When using only a locating rod or location lug, length, thickness and the height of its head or tenon are sufficiently large to ensure to be oriented to rudder plate relative to the firm position of lift-buoy body and will not deflect.Preferably, using two locating rods or location lug.

In the 5th embodiment, the guiding rudder plate of rope control aquatic life-saving equipment of the invention is dismountable, and guiding rudder plate therein, which has, one or more caters to lift-buoy body（It is standard lifebuoy in the present embodiment）Base, and one or more cater to lift-buoy body（It is standard lifebuoy in the present embodiment）Grip slipper, base and grip slipper are firmly held on lift-buoy body by screw rod and binding nut, is clamped in the present embodiment on the circle body of lifebuoy, guiding rudder plate can be made to be fixed relative to lift-buoy body.

The stress upstream face for being oriented to rudder plate can be plane or curved surface.The situation that stress upstream face is curved surface is given in 7th embodiment, many small planes the stress upstream face of the curved surface can be now divided into, the stress upstream face of the plane equivalent with it is obtained with integro-differential equation or FInite Element.Algorithm is very complicated, can be replaced with empirical equation, and the maximum projection plane for for example thinking the stress upstream face of curved surface is the plane earth stress upstream face equivalent with it.The shape for being oriented to the stress upstream face of rudder plate can be rectangle, it can also be round rectangle, triangle, trapezoidal, semicircle, kidney ellipsoid, annular, sector, fan annular or irregular shape, the stress upstream face of its equivalent rectangular plane can also be obtained with above-mentioned integro-differential equation or FInite Element for the plane earth stress upstream face for round rectangle, triangle, trapezoidal, semicircle, kidney ellipsoid, annular, sector, fan annular or irregular shape.Thus, the stress upstream face of an equivalent rectangular plane equivalent with it can be found for the stress upstream face of the guiding rudder plate of arbitrary shape, then it can judge to select the locating ring of correct position with rescue rope to be connected by the foregoing method of application according to the stress upstream face of the equivalent rectangular plane.Usually, as long as the rectangle plane of stress upstream face has more than 100 square centimeters of area, rope control aquatic life-saving equipment of the invention can work.The area for being oriented to the stress upstream face of rudder plate is bigger, and the impulsive force that it receives current is bigger.In flood, the area of excessive stress upstream face（Such as larger than 5000 square centimeters）It is likely to result in rescue rope tension excessive and snap or rescuer is pulled in water.Preferably, the stress upstream face for being oriented to rudder plate is plane, and area is 200 square centimeters to 5000 square centimeters.Wherein, the guiding rudder plate of small stress upstream face area of the area below 1000 square centimeters is used in the case of the torrent such as flood, and its rescue can reduce the pulling force of rescue rope；The guiding rudder plate of big stress upstream face area of the area more than 2000 square centimeters is used for gentle current and standing water is rescued.It is highly preferred that the area of the stress upstream face of guiding rudder plate is at 1000 to 2000 square centimeters, it is applicable to the in most cases rescue of water velocity 0.2-2 meter per seconds.

In the 8th embodiment, the one end for the rescue rope that rope of the invention controls aquatic life-saving equipment is provided with safety door hook（First safety door hook）, the other end for rescuer for gripping, and the centre at two ends is also equipped with a safety door hook with rope（Second safety door hook）；The sidepiece of lift-buoy body is at least provided with two locating rings, respectively the first locating ring and the second locating ring；Rescue rope length between first safety door hook and the second safety door hook is more than the distance of the first locating ring and the second locating ring.It is recognised that working as the first safety door hook and the first locating ring on rescue rope（Or second locating ring）Coordinate, the second safety door hook and the second locating ring（Or first locating ring）During cooperation, the rescue rope between the first safety door hook and the second safety door hook is in relaxation shape, and rescue rope is to the application point of the pulling force of lift-buoy body in the second locating ring（Or first locating ring）Place；Then when the second safety door hook of releasing and the second locating ring（Or first locating ring）Cooperation when, rescue rope is changed into the first locating ring to the application point of the pulling force of lift-buoy body（Or second locating ring）Place.Thus, the rope control aquatic life-saving equipment in the present embodiment is applicable not only to the floating boat of lift-buoy body at by rescuer, is also adapted to lift-buoy body being withdrawn at rescuer with by rescuer, specific application method is as follows：

Step 1: rescuer, relative to the position of oneself and the direction of current, the first safety door hook and the first locating ring or the second locating ring is coordinated, and the second safety door hook and the second locating ring or the first locating ring are coordinated according to by rescuer.Rescuer judges the locating ring of selection correct position with identical with the determination methods that the rope described in one embodiment is controlled in the step one in the application method of aquatic life-saving equipment with the method that the second safety door hook on rescue rope coordinates.It will not be described here.Then the first safety door hook and the first locating ring or the second locating ring are coordinated, it is preferable that the locating ring that coordinates with the first safety door hook and be symmetrical on being oriented to the normal of the center of the rectangle plane of the stress upstream face of rudder plate with locating ring that the second safety door hook coordinates.

Position of the rudder plate relative to lift-buoy body is oriented to Step 2: determining to be oriented to when rudder plate is used on the water relative to the position of lift-buoy body for rope control aquatic life-saving equipment, determine that the guiding rudder plate foldably installed is opened to position, the guiding rudder plate removably installed is installed in place.

Step 4: rescuer discharges rescue rope, rope control aquatic life-saving equipment is set to be gone under the promotion of current to by rescuer's drift.The step is identical with the determination methods in the step one in the application method of the rope control aquatic life-saving equipment described in one embodiment.It will not be described here.

Step 5: being caught by rescuer after rope control aquatic life-saving equipment, release the cooperation of the second safety door hook and the second locating ring or the first locating ring, that is, release the second safety door hook with and its locating ring being connected cooperation.Rescue rope now passes through the first safety door hook and the first locating ring（Or second locating ring）It is connected to lift-buoy body.Before the cooperation of above-mentioned safety door hook and locating ring is released, lift-buoy body can first be dressed by rescuer, for example the lift-buoy body as lifebuoy is enclosed on.

Step 6: rescuer reclaims rescue rope, rope control aquatic life-saving equipment is set to be floated back with by rescuer under the promotion of current to rescuer.

As can be seen here, the rope control aquatic life-saving equipment of the present invention on lift-buoy body by setting guiding rudder plate and rescue rope being connected at the correct position of lift-buoy body, lift-buoy body can be floated using the impulsive force of current and navigated to the aquatic location needed for being captured by rescuer, rope control aquatic life-saving equipment of the invention can also utilize the impulsive force of current be retracted by lift-buoy body and by rescuer.Structure of the present invention is extremely simple, cost is extremely low and implement it is more convenient, user individual can flexible operating, with extremely strong practicality.The present invention has a wide range of application, and can be used in the waters of various water velocities.

The technique effect of the design of the present invention, concrete structure and generation is described further below with reference to accompanying drawing, to be fully understood from the purpose of the present invention, feature and effect.

Brief description of the drawings

Fig. 1 shows in one embodiment that rope of the invention controls the top view of aquatic life-saving equipment.

Fig. 2 is the front view of the rope control aquatic life-saving equipment shown in Fig. 1.

Fig. 3 is the left view of the rope control aquatic life-saving equipment shown in Fig. 1.

Fig. 4 shows the stressing conditions when rope control aquatic life-saving equipment shown in Fig. 1 is used on the water.

Fig. 5 shows that the water (flow) direction shown in the stressing conditions when rope control aquatic life-saving equipment shown in Fig. 1 is used on the water, figure is opposite with the water (flow) direction that Fig. 4 is shown.

Fig. 6 shows in second embodiment that rope of the invention controls the top view of aquatic life-saving equipment.

Fig. 7 is the sectional view along AA ' directions of the rope control aquatic life-saving equipment shown in Fig. 6.

Fig. 8 is schematic diagram of the guiding rudder plate in open mode of rope control aquatic life-saving equipment wherein shown in Fig. 7.

Fig. 9 controls the schematic diagram of the amplification of the region c in the front view of aquatic life-saving equipment for the rope shown in Fig. 1.

Figure 10 is the sectional view along BB ' directions of the rope control aquatic life-saving equipment shown in Fig. 6, and guiding rudder plate therein is in open mode.

Figure 11 shows in the 3rd embodiment that rope of the invention controls the side view of aquatic life-saving equipment.

Figure 12 shows in the 4th embodiment that rope of the invention controls the stereogram of aquatic life-saving equipment.

Figure 13 shows in the 5th embodiment that rope of the invention controls the side view of aquatic life-saving equipment.

Figure 14 shows in the 6th embodiment that rope of the invention controls the stereogram of aquatic life-saving equipment.

Figure 15 shows in the 7th embodiment that rope of the invention controls the top view of aquatic life-saving equipment, and shows stress when it is used on the water.

Figure 16 shows in the 8th embodiment that rope of the invention controls the top view of aquatic life-saving equipment, and shows the connected mode and stress of rescue rope and lift-buoy body when it is used on the water, and now corresponding is the situation for delivering lift-buoy body.

Figure 17 shows another connected mode and stress of rescue rope and lift-buoy body when the rope control aquatic life-saving equipment shown in Figure 16 is used on the water, and now corresponding is the situation for reclaiming lift-buoy body.

Embodiment

Fig. 1-3 shows rope control aquatic life-saving equipment of the invention in one embodiment, and it includes lift-buoy body 1, is oriented to rudder plate 2, the first locating ring 3, the second locating ring 4, rescue rope 6 and safety door hook 5.Lift-buoy body 1 in the present embodiment is standard lifebuoy；It is oriented to rudder plate 2 to be fixedly installed on lift-buoy body 1, it is a rectangular flat, with the stress upstream face for rectangle plane；First locating ring 3 and the second locating ring 4 are separately positioned on the sidepiece of lift-buoy body 1；One end of rescue rope 6 sets safety door hook 5, and by the mating connection of the locating ring 3 of safety door hook 5 and first or the second locating ring 4 to lift-buoy body 1, the other end of rescue rope 6 is for rescuer's gripping.The locating ring 8 of position-adjustable is additionally provided with lift-buoy body 1, locating ring 8 is fixed on the sidepiece of lift-buoy body 1 by tying up cingulum 7.When adjusting the position of locating ring 8, the position tied up button, then locating ring 8 is placed into needs for tying up cingulum 7 to locating ring 8 and lift-buoy body 1 can be released, buckled using tying up cingulum 7 and tying up locating ring 8 and lift-buoy body 1.

Figure 4 and 5 show the schematic diagram using the rope control aquatic life-saving equipment of the present invention in the waters of two kinds of different water (flow) directions, and show stressing conditions.Fig. 4 corresponding is that left bank is rescued, and the arrow in figure represents water (flow) direction, and the station of rescuer 20 grips one end of rescue rope 6 on bank 10 in hand, what now rescue rope 6 was connected is the second locating ring 4.Show lift-buoy body 1 by the active force f1, the impulse force f2 of current that are oriented to rudder plate 2 and the pulling force f3 of rescue rope 6 in figure, it can be seen that, lift-buoy body 1 by under the promotion of current offshore drift navigate, rescuer 20 can make the drift boat of lift-buoy body 1 at by rescuer by controlling rescue rope.Specifically, if be located at by rescuer on the reef in waters at 50 meters of 10 distance of offshore, the station of rescuer 20 is in distance by the bank 10 of the upstream at about 70 ~ 80 meters of rescuer, rescue rope 6 is discharged with the velocity-stabilization less than flow rate of water flow, it is possible to which quick lift-buoy body 1 of delivering is at by rescuer.In by the downstream of rescuer when being reached such as lift-buoy body 1 at 50 meters of 10 distance of offshore（Or upstream）, rescuer 20 can be on bank 10 to the upstream of current（Or downstream）Direction movement, for example run, to adjust the position of lift-buoy body 1.

Fig. 5 corresponding is that right bank is rescued, and the arrow in figure represents water (flow) direction, and the station of rescuer 20 grips one end of rescue rope 6 on bank 10 in hand, what now rescue rope 6 was connected is the first locating ring 3.Show lift-buoy body 1 by the active force f1, the impulse force f2 of current that are oriented to rudder plate 2 and the pulling force f3 of rescue rope 6 in figure, it can be seen that, lift-buoy body 1 by under the promotion of current offshore drift navigate, rescuer 20 can make the drift boat of lift-buoy body 1 at by rescuer by controlling rescue rope.Specifically, if be located at by rescuer on the reef in waters at 50 meters of 10 distance of offshore, the station of rescuer 20 is in distance by the bank 10 of the upstream at about 70 ~ 80 meters of rescuer, rescue rope 6 is discharged with the velocity-stabilization less than flow rate of water flow, it is possible to which quick lift-buoy body 1 of delivering is at by rescuer.In by the downstream of rescuer when being reached such as lift-buoy body 1 at 50 meters of 10 distance of offshore（Or upstream）, rescuer 20 can be on bank 10 to the upstream of current（Or downstream）Direction movement, for example run, to adjust the position of lift-buoy body 1.

In low flow velocity or standing water, rescuer is run by bank 10 can cause the relative motion of lift-buoy body 1 and water, play and rescue same effect with the rescue of above-mentioned left bank and right bank.For example, when the right side of bank 10 have it is longer sue and labour space when, identical mode is connected locating ring during using with above-mentioned right bank rescue, the lift-buoy body 1 of being jettisoninged on bank 10 at 80 meters of the right of rescuer of rescuer 20 enters water, then run to the left side while discharging rescue rope 6, when run 150 meters apart from when about 60 meters of the offshore of lift-buoy body 1, continue to run, rescue rope 6 between lift-buoy body 1 and rescuer 20 is by inswept by rescuer, the stop motion of rescuer 20, rescue rope 6 is caught by rescuer, and catch lift-buoy body 1 along rescue rope 6, so rescuer 20 can be pulling to bank 10 by rescuer.

Fig. 6-10 shows rope control aquatic life-saving equipment of the invention in second embodiment, and it is folding that it, which is oriented to rudder plate 12,.Fig. 6 and 7 shows the state that rudder plate 12 is closed that is oriented to, and it is fitted on lift-buoy body 11, it is preferred that having groove on lift-buoy body 11, is oriented to rudder plate 12 and is embedded.Fig. 8 and 10 shows the state that rudder plate 12 is opened that is oriented to.An end for being oriented to rudder plate 12 is connected on lift-buoy body 11 by hinge 13, and the end is additionally provided with ledge 16, and reinforcement 14 is connected between the two to improve strength and stiffness when being oriented to 12 stress of rudder plate.Bayonet socket 15 is additionally provided with lift-buoy body 11, after guiding rudder plate 12 is opened in place, bayonet socket 15 is engaged ledge 16, thus fixed guide rudder plate 12.In addition, as shown in the schematic diagram of Fig. 9 amplifications provided, this groove on lift-buoy body 11 has prominent edge 17, it is possible thereby to be oriented to restricted guidance rudder plate 12 when rudder plate 12 is closed, closure state is in when not in use in the rope control aquatic life-saving equipment of the present invention to ensure to be oriented to rudder plate 12.

Figure 11 shows rope control aquatic life-saving equipment of the invention in the 3rd embodiment, and it is dismountable that it, which is oriented to rudder plate 22,.Guiding rudder plate 22, which has, caters to lift-buoy body 21（It is standard lifebuoy in the present embodiment）Base 23, base 23 and be oriented between rudder plate 22 there is reinforcement 24, being connected with bondage on base 23 ties up buckle structure, in particular bandage 25 and tightening buckle 26.Preferably, there are jut 27, such as locating pin or alignment pin on base 23, it can be embedded in the perforate on lift-buoy body 21 to avoid guiding rudder plate 22 from occurring the movement relative to lift-buoy body 21.

Figure 12 shows rope control aquatic life-saving equipment of the invention in the 4th embodiment, and it is dismountable that it, which is oriented to rudder plate 32,.Being oriented to rudder plate 32 has two protuberances 33, and such as locating rod or location lug have reinforcement 34 between protuberance 33 and guiding rudder plate 32, correspondingly have two through holes 35 on lift-buoy body 31.Inserted by the protuberance 33 for being directed to rudder plate 32 in the through hole 35 on lift-buoy body 31, and alignment pin 36 is laterally inserted into by exposing the position of through hole 35 on the top of protuberance 33, guiding rudder plate 32 is fixed relative to lift-buoy body 31.

Figure 13 shows rope control aquatic life-saving equipment of the invention in the 5th embodiment, and it is dismountable that it, which is oriented to rudder plate 42,.Guiding rudder plate 42, which has, caters to lift-buoy body 41（It is standard lifebuoy in the present embodiment）Base 43 and cater to the grip slipper 45 of lift-buoy body 21, base 43 and grip slipper 45 are firmly held on lift-buoy body 41 by screw rod 44 and binding nut 46, so that guiding rudder plate 42 is fixed relative to lift-buoy body 41.

Figure 14 shows rope control aquatic life-saving equipment of the invention in the 6th embodiment, including four folding guiding rudder plates 52, and each rudder plate that is oriented to all is connected on lift-buoy body 51 by hinge 54, also correspondingly has four grooves on lift-buoy body 51.In the insertion groove 55 of guiding rudder plate 52 in closure state, lift-buoy body 51 is fitted in.The sidepiece of lift-buoy body 51 is additionally provided with two locating rings 53.

Figure 15 shows rope control aquatic life-saving equipment of the invention in the 7th embodiment, and guiding rudder plate 62 therein is the plate of bending, the stress upstream face with curved surface.It is oriented to rudder plate 62 to be arranged on lift-buoy body 61, the sidepiece of lift-buoy body 61 is provided with locating ring 64, rescue rope 66 passes through in the mating connection of safety door hook 65 and locating ring 64 to lift-buoy body 61.In use, the station of rescuer 20 is on bank 10, one end of rescue rope 66 is gripped, by controlling rescue rope 66, makes the floating boat of lift-buoy body 61 at by rescuer.Arrow in figure represents the direction of current, and lift-buoy body 61 is in water by active force f1, the active force f2 of current and the pulling force f3 of rescue rope 66 for being oriented to rudder plate 62.Wherein, by the stress for the stress upstream face that the stress of the stress upstream face of curved surface is equivalent to plane, the guiding rudder plate 62 of bending can be equivalent to the guiding rudder plate 621 of flat board.

Figure 16 and 17 shows rope control aquatic life-saving equipment of the invention in the 8th embodiment, and it includes lift-buoy body 71, is oriented to rudder plate 72, the first locating ring 75, the first safety door hook 76, the second locating ring 73, the second safety door hook 74 and rescue rope 77.Lift-buoy body 71 in embodiment is standard lifebuoy；It is oriented to rudder plate 72 to be fixedly installed on lift-buoy body 1, it is a rectangular flat, with the stress upstream face for rectangle plane；First locating ring 75 and the second locating ring 73 are separately positioned on the sidepiece of lift-buoy body 71；One end of rescue rope 77 sets the first safety door hook 75, body of restricting sets the second safety door hook 74, by the mating connection of the first safety door hook 75 and/or the second safety door hook 74 and the first locating ring 75 and/or the second locating ring 74 to lift-buoy body 71, the other end of rescue rope 77 is gripped for the rescuer 20 on bank 10.

Figure 16 and 17 shows the schematic diagram using the rope control aquatic life-saving equipment of the present invention in the waters of the water (flow) direction shown in arrow, and shows stressing conditions.Dispensing lift-buoy body 71 is shown in Figure 16, and now, the first safety door hook 76 coordinates with the first locating ring 75, and the second safety door hook 74 coordinates with the second locating ring 73, and rescue rope 77 is to the application point of the pulling force of lift-buoy body 71 at the second locating ring 73.Lift-buoy body 71 is drifted out bank 10 by the active force f1, the active force f2 of current that are oriented to rudder plate 72 and the pulling force f3 of rescue rope 77 in the presence of these power.Rescuer 20, can be by the floating boat of lift-buoy body 71 at by rescuer by controlling rescue rope 77.

Recovery lift-buoy body 71 is shown in Figure 17, caught by rescuer after lift-buoy body 71, release the cooperation of the second safety door hook 74 and the second locating ring 73, retain the cooperation of the first safety door hook 76 and the first locating ring 75, now rescue rope 77 to the application point of the pulling force of lift-buoy body 71 at the first locating ring 75.Lift-buoy body 71 is flowed towards bank 10 by the active force f1, the active force f2 of current that are oriented to rudder plate 72 and the pulling force f3 of rescue rope 77 in the presence of these power.Rescuer 20 by rescuer can be withdrawn into bank 10 by lift-buoy body 71 is related by controlling rescue rope 77.

When the water (flow) direction in the waters of the rope control aquatic life-saving equipment using the present invention is opposite with shown in Figure 16 and 17, the fit system of the first locating ring 75 and the first safety door hook 76 and the second locating ring 73 and the second safety door hook 74 can be correspondingly adjusted.Specifically, when delivering lift-buoy body 71, the first safety door hook 76 is coordinated with the second locating ring 73 and coordinates the second safety door hook 74 with the first locating ring 75；When reclaiming lift-buoy body 71, the cooperation of the first safety door hook 76 and the second locating ring 73 is retained by the cooperation of rescuer's the second safety door hook 74 of releasing and the first locating ring 75.

Preferred embodiment of the invention described in detail above.It should be appreciated that one of ordinary skill in the art just can make many modifications and variations without creative work according to the design of the present invention.Therefore, all those skilled in the art, all should be in the protection domain being defined in the patent claims under this invention's idea on the basis of existing technology by the available technical scheme of logical analysis, reasoning, or a limited experiment.

Claims

One kind rope control aquatic life-saving equipment, it is characterised in that including lift-buoy body, be oriented to rudder plate and rescue rope, the guiding rudder plate has stress upstream face；

When the rope control aquatic life-saving equipment is used on the water, the lift-buoy body is swum on the water surface, the guiding rudder plate is arranged on the lift-buoy body and is immersed at least in part in water, the angle of the stress upstream face and the water surface is between 30 ° to 150 °, one end of the rescue rope is connected on the lift-buoy body, and the other end of the rescue rope is gripped by rescuer.
Rope control aquatic life-saving equipment as claimed in claim 1, it is characterized in that, it is provided with the lift-buoy body on locating ring, the rescue rope and is provided with safety door hook, the rescue rope is by the mating connection of the safety door hook and the locating ring on the lift-buoy body.
Rope control aquatic life-saving equipment as claimed in claim 2, it is characterised in that the rope control aquatic life-saving equipment is not on the water in use, the guiding rudder plate is also disposed on the lift-buoy body；And the rope control aquatic life-saving equipment is described when not using on the water is oriented to that described when rudder plate is used on the water relative to the position of the lift-buoy body with the rope control aquatic life-saving equipment to be oriented to rudder plate identical relative to the position of the lift-buoy body.
Rope control aquatic life-saving equipment as claimed in claim 2, it is characterised in that the rope control aquatic life-saving equipment is not on the water in use, the guiding rudder plate is also disposed on the lift-buoy body；And the rope is controlled the guiding rudder plate when guiding rudder plate is used on the water relative to the position of the lift-buoy body with the rope control aquatic life-saving equipment when aquatic life-saving equipment is not used on the water and differed relative to the position of the lift-buoy body.
Rope control aquatic life-saving equipment as claimed in claim 2, it is characterised in that the rope control aquatic life-saving equipment is not on the water in use, the guiding rudder plate is not disposed on the lift-buoy body.
Rope control aquatic life-saving equipment as claimed in claim 3, it is characterised in that the guiding rudder plate is by riveting, screw is fixed or glue bond is connected on the lift-buoy body.
Rope control aquatic life-saving equipment as claimed in claim 3, it is characterised in that the guiding rudder plate and described this body by integral forming of lift-buoy.
Rope control aquatic life-saving equipment as claimed in claim 4, it is characterised in that one end of the guiding rudder plate is hinged to the lift-buoy body, and the guiding rudder plate can be rotated around the hinge relative to the lift-buoy body；The rope controls guiding rudder plate when aquatic life-saving equipment is not used on the water and fits in the lift-buoy body；Bayonet socket is additionally provided with the lift-buoy body, the rope control aquatic life-saving equipment is not on the water in use, the bayonet socket occlusion guiding rudder plate is so that the guiding rudder plate changes relative to the position of the lift-buoy body.
Rope control aquatic life-saving equipment as claimed in claim 8, it is characterized in that, multiple guiding rudder plates are provided with multiple bayonet sockets for being engaged the multiple guiding rudder plate respectively by multiple described are hingedly connected on the lift-buoy body, the lift-buoy body respectively；The rope controls the multiple guiding rudder plate when aquatic life-saving equipment is not used on the water and all fits in the lift-buoy body；The rope control aquatic life-saving equipment is on the water in use, at least one described bayonet socket is engaged at least one described guiding rudder plate.
Rope control aquatic life-saving equipment as claimed in claim 5, it is characterised in that the rope control aquatic life-saving equipment is on the water in use, the guiding rudder plate is bundled on the lift-buoy body by bandage or rope；Or the guiding rudder plate is fixed on the lift-buoy body by fixture.
Rope control aquatic life-saving equipment as claimed in claim 10, it is characterised in that having on the lift-buoy body has jut on perforate, the guiding rudder plate；The rope control aquatic life-saving equipment is on the water in use, the jut being oriented on rudder plate is embedded in the perforate on the lift-buoy body.
Rope control aquatic life-saving equipment as described in any one in claim 2-11, it is characterized in that, the stress upstream face is a rectangle plane or is equivalent to an equivalent rectangular plane, the rectangle plane has first side and second side, and the equivalent rectangular plane has the first equivalent side and the second equivalent side；The locating ring is arranged on the sidepiece of the lift-buoy；When the stress upstream face is the rectangle plane, the distance of the locating ring to the first side and the second side is unequal；When the stress upstream face is equivalent to the equivalent rectangular plane, the distance of the locating ring to the described first equivalent side and the second equivalent side is unequal.
Rope control aquatic life-saving equipment as claimed in claim 12, it is characterised in that the locating ring includes two locating rings；When the stress upstream face is the rectangle plane, the distance of one of locating ring to the first side is smaller than the distance to the second side, and the distance of another locating ring to the second side is smaller than the distance to the first side；When the stress upstream face is equivalent to the equivalent rectangular plane, the distance of one of locating ring to the described first equivalent side is smaller than the distance to the described second equivalent side, and the distance of another locating ring to the described second equivalent side is smaller than the distance to the described first equivalent side.
Rope control aquatic life-saving equipment as claimed in claim 13, it is characterised in that the safety door hook is fixedly connected on one end of the rescue rope；The rope control aquatic life-saving equipment is on the water in use, the safety door hook and a cooperation in described two locating rings.
Rope control aquatic life-saving equipment as claimed in claim 13, it is characterized in that, the safety door hook includes the first safety door hook and the second safety door hook, and first safety door hook is fixedly connected on one end of the rescue rope, and second safety door hook is fixedly connected on the rescue rope；The rope control aquatic life-saving equipment is on the water in use, first safety door hook coordinates and second safety door hook and another cooperation in described two locating rings with one in described two locating rings.
Rope control aquatic life-saving equipment as described in claims 14 or 15, it is characterised in that the lift-buoy body is lifebuoy.
A kind of application method for control aquatic life-saving equipment of restricting, applied to the rope control aquatic life-saving equipment described in the claim 14, it is characterised in that including：

The rescuer, relative to the position of oneself and the direction of current, one in the safety door hook and described two locating rings is coordinated according to by rescuer；

Determine position of the guiding rudder plate relative to the lift-buoy body when guiding rudder plate is used on the water relative to the position of the lift-buoy body for the rope control aquatic life-saving equipment；

Jettisoning it is described rope control aquatic life-saving equipment, make the lift-buoy body bubble through the water column and it is described guiding rudder plate be immersed in water；

The rescuer discharges the rescue rope, the rope control aquatic life-saving equipment is gone under the promotion of the current to described by rescuer's drift.
A kind of application method for control aquatic life-saving equipment of restricting, applied to the rope control aquatic life-saving equipment described in the claim 15, it is characterised in that including：

The rescuer, relative to the position of oneself and the direction of current, one in second safety door hook and described two locating rings is coordinated according to by rescuer, and then by another cooperation in first safety door hook and described two locating rings；

Determine position of the guiding rudder plate relative to the lift-buoy body when guiding rudder plate is used on the water relative to the position of the lift-buoy body for the rope control aquatic life-saving equipment；

Jettisoning it is described rope control aquatic life-saving equipment, make the lift-buoy body bubble through the water column and it is described guiding rudder plate be immersed in water；

The rescuer discharges rescue rope, the rope control aquatic life-saving equipment is gone under the promotion of the current to described by rescuer's drift；

It is described to be caught by rescuer after the rope control aquatic life-saving equipment, release second safety door hook and one cooperation in described two locating rings；

The rescuer reclaims the rescue rope, the rope control aquatic life-saving equipment is floated back with described by rescuer to the rescuer under the promotion of the current.
One kind is oriented to rudder plate, it is characterised in that including stress upstream face；Bandage, rope and/or fixture are connected with the guiding rudder plate, the bandage, rope and fixture are used to the guiding rudder plate being fixed on lift-buoy body；When the lift-buoy body is swum on the water surface, the guiding rudder plate is immersed in water at least in part, and the angle of the stress upstream face and the water surface is between 30 ° to 150 °.
As claimed in claim 19 to be oriented to rudder plate, it is characterised in that one end of the guiding rudder plate has jut, the jut is used to coordinate with the perforate on the lift-buoy body.