CN209075974U - It is a kind of novel to fetch water propulsion device with fast variation rigidity - Google Patents

Abstract

It novel fetches water propulsion device with fast variation rigidity the utility model discloses a kind of, including paddle blade and longitudinal keel, or including fin keel and longitudinal keel, longitudinal keel at least one in the longitudinal side of the paddle blade or fin keel for rigidity with speed it is variable with fast variation rigidity longitudinal keel, the rigid rod for including at least one section with fast variation rigidity longitudinal keel and the rigidity of at least one are with velocity modulation regulating device, the rigidity includes the Taper Pipe of rigid rod inner hollow and the content that is hidden in Taper Pipe with velocity modulation regulating device, the content being hidden in Taper Pipe is non-newtonian fluid, or to be total to longitudinal axis with Taper Pipe and bar can be bored along the normal direction unequal rigidity that the longitudinal axis of Taper Pipe vertically moves, in the normal direction of two orthogonal normal direction unequal rigidity cone bar longitudinal axis in the Normal plane perpendicular with the longitudinal axis of normal direction unequal rigidity cone bar , normal direction unequal rigidity bore bar bending stiffness it is not identical.

Description

It is a kind of novel to fetch water propulsion device with fast variation rigidity

Technical field

The present invention relates to swimming device and diving equipment industry, in particular to a kind of novel fetch water with fast variation rigidity promotes dress It sets, is used for swimming exercise, underwater swimming.

Background technique

Contemporary society, swimming exercise and underwater swimming are more more and more universal, and various swimming devices, diving equipment emerge one after another, It is the main driving tool to advance that most of swimming device and diving equipment, which are all with flippers, common are both feet and respectively wears one The double webs of both feet only and both feet wear one single web of both feet altogether, and there are also the bionic caudal fin that both feet wear one altogether, the double webs of both feet are trips Swimmer is kicked alternately the motive force for generating and advancing by both legs, and both feet list web and bionic caudal fin are that swimmer beats by the way that both legs are synchronous Aquatic products before death into motive force.

The either double webs of both feet, the single web of both feet or bionic caudal fin, there is its most suitable single frequency of fetching water, swimmer It is only fetched water with the frequency of fetching water, optimal propulsive force could be obtained；Speed is swum when swimmer wishes to change, such as with higher frequency Rate fetch water the fast trip of high speed or with lower frequency fetch water low speed swim slowly when, the efficiency of propulsion can decline, and especially work as swimming When person is fetched water with higher frequency, not only propulsive efficiency is not high, but also can generate feeling of fatigue quickly.

Summary of the invention

For the double webs of the main driving tool of current existing swimming device and diving equipment both feet, the single web of both feet and bionical Tail fin does not have preferably to solve obtain higher propulsive efficiency not in the case where two states are swum in the fast trip of high speed and low speed slowly Foot place, the present inventor combine human motion structure feature, by scientifically and rationally using ergonomics, provide a kind of novel Fetch water propulsion device with fast variation rigidity, by this it is novel fetch water propulsion device with fast variation rigidity, swimmer can be with higher frequency Rate is fetched water, and high speed is fast to swim, and the low speed that can also be fetched water with lower frequency is swum slowly, with the variation or swimmer's swinging kick frequency of trip speed Or the variation of swinging kick rate, it is novel to occur therewith with the fetch water rigidity with fast variation rigidity longitudinal keel of propulsion device of fast variation rigidity No matter variation, fetch water under which kind of frequency, and swimmer can effectively improve the specific gravity of useful work, promotes swimming to the maximum extent With the advance efficiency and You Su and saving physical strength of diving, the traveling potential of swimmer in water is given full play of, length is finally reached The purpose that time, long range continuous high speed are cruised；Swimmer is cruised by speed change, can also be effectively reduced over long distances, for a long time The feeling of fatigue generated when continuously cruising.

The present invention specifically uses following scheme:

It is a kind of it is novel fetch water propulsion device, including paddle blade and longitudinal keel with fast variation rigidity, or include fin keel and longitudinal imperial Bone, it is characterised in that: longitudinal keel at least one in the longitudinal side of the paddle blade or fin keel can with speed for rigidity Become with fast variation rigidity longitudinal keel, it is described with fast variation rigidity longitudinal keel include at least one section rigid rod and at least one For rigidity with velocity modulation regulating device, the rigidity includes the Taper Pipe of rigid rod inner hollow with velocity modulation regulating device and the appearance that is hidden in Taper Pipe Receive object, the content being hidden in Taper Pipe is non-newtonian fluid, or to be total to longitudinal axis with Taper Pipe and can be along the longitudinal axis of Taper Pipe The normal direction unequal rigidity of line longitudinal movement bores bar, and the longitudinal axis of the Taper Pipe is curve or straight line, perpendicular to the longitudinal axis of Taper Pipe Taper Pipe lumenal cross-section be non-circular or non-equilateral and each Taper Pipe lumenal cross-section perimeter from before swimmer's direction of travel Fang Yiduan is gradually reduced to rear one end of swimmer's direction of travel, perpendicular to the normal direction of the longitudinal axis of normal direction unequal rigidity cone bar Unequal rigidity cone bar outer profile cross section is also non-circular or non-equilateral and each normal direction unequal rigidity cone bar outer profile cross section Perimeter is also gradually reduced from front one end of swimmer's direction of travel to rear one end of swimmer's direction of travel, at same section Taper Pipe lumenal cross-section shape be identical to normal direction unequal rigidity cone bar outer profile cross-sectional shape, and the Taper Pipe at same section Lumenal cross-section perimeter is greater than normal direction unequal rigidity and bores bar outer profile section girth, i.e., the Taper Pipe inner cavity at same section is transversal Face shape is that the normal direction unequal rigidity at this bores scaling up for bar outer profile cross-sectional shape, is bored with normal direction unequal rigidity The normal direction of two orthogonal normal direction unequal rigidity cone bar longitudinal axis in the perpendicular Normal plane of the longitudinal axis of bar On, normal direction unequal rigidity bore bar bending stiffness it is not identical, it is described it is novel with fast variation rigidity fetch water propulsion device include both feet altogether Wear one single web of both feet, both feet respectively wear one double web of both feet, also include the bionic caudal fin that both feet wear one altogether, further including can Become tail fin, both feet list web, that is, dolphin web.

The longitudinal keel of double-legged list web is usually left and right two, is located at the two of the left and right sides of the paddle blade of double-legged single web In longitudinal side, it is generally the case that two longitudinal keels are with fast variation rigidity longitudinal keel；Longitudinal dragon of bionic caudal fin Bone is generally also left and right two, is located in two longitudinal sides of the left and right sides of the fin keel of bionic caudal fin, usual situation Under, which is also with fast variation rigidity longitudinal keel.The longitudinal keel of each flippers of double-legged double webs is usual Also it is left and right two, is located in two longitudinal sides of the left and right sides of each flippers of double-legged double webs, usual situation Under, which is also with fast variation rigidity longitudinal keel.Longitudinal side is longitudinal profile outer.

When rigidity is made of with velocity modulation regulating device Taper Pipe and non-newtonian fluid, with swimmer's swinging kick frequency or swinging kick speed Rate increases, and non-newtonian fluid to become larger with the bending stiffness of fast variation rigidity longitudinal keel；With swinging kick frequency or swinging kick rate Reduce, non-newtonian fluid to become smaller with the bending stiffness of fast variation rigidity longitudinal keel.

It is when the content being hidden in Taper Pipe is the normal direction unequal rigidity cone bar for being total to longitudinal axis with Taper Pipe, i.e., described rigid Degree is made of with velocity modulation regulating device Taper Pipe and normal direction unequal rigidity the cone bar of rigid rod inner hollow, Taper Pipe and normal direction unequal rigidity The reseting elastic element that the normal direction unequal rigidity cone bar that being also equipped between cone bar makes to vertically move resets, the normal direction etc. Rigidity cone bar includes the smooth surface cone bar of section girth consecutive variations, also includes the ladder that section girth discontinuously changes Bar is bored on surface, further includes the chain-type cone bar that chain link is gradually reduced, the stepped surfaces cone bar includes that length is fixed, shape is fixed Stepped surfaces type cone cell bar and length is variable, telescopic telescopic antenna type cone cell bar.

The rigid rod with fast variation rigidity longitudinal keel is usually whole hollow Taper Pipe, from swimmer traveling side To cross-sectional profiles perimeter from front one end to rear one end of swimmer's direction of travel and inside cavity cross section perimeter It is gradually reduced, normal direction unequal rigidity bores the cross-sectional profiles perimeter of bar from front one end of swimmer's direction of travel to swimmer Rear one end of direction of travel is also gradually reduced accordingly.For smooth surface type cone cell bar, stepped surfaces type cone cell bar or chain Formula bores bar, be equipped in Taper Pipe that the compressible type being equipped in its stub end or Taper Pipe is acted on by pull-up reseting elastic element is multiple Position elastic element acts on its small head end, and the direction for forcing it to advance to swimmer resets, smooth surface type cone cell bar, ladder table The stub end of face type cone cell bar or chain-type cone bar is i.e. towards the front end of swimmer's direction of travel, small head end, that is, rear end；For drawing Spike antenna type cone cell bar, what is be equipped in Taper Pipe is passed through the hollow at different levels of telescopic antenna type cone cell bar by pull-up reseting elastic element Telescopic joint acts on the front end towards swimmer's direction of travel of the smallest final stage bar of section girth among telescopic joints at different levels, or The compressible type reseting elastic element being equipped in Taper Pipe acts on cross section week among the telescopic joints at different levels of telescopic antenna type cone cell bar The rear end towards swimmer's direction of travel of long the smallest final stage bar, the final stage bar work as that telescopic antenna type cone cell bar is at different levels to be stretched That grade of bar of the least significant end counted up under the fully extended state of casing coupling towards swimmer's direction of travel, it is generally the case that reset bullet Property member use by pull-up Flexible Reset member, such as extension spring or rubber band, one end is fixed on the hollow Taper Pipe The biggish one end of section girth is towards on the inner wall of the front end of swimmer's direction of travel, and the other end is bored across telescopic antenna type The smallest final stage bar of section girth among the telescopic joints at different levels of the hollow telescopic joints at different levels of shape bar and telescopic antenna type cone cell bar Front end mutually fix.Taper Pipe is loaded on by pull-up reseting elastic element or compressible type reseting elastic element described in this paragraph In internal cavity and its longitudinal axis and Taper Pipe are coaxial, are bored respectively with normal direction unequal rigidity by the both ends of pull-up reseting elastic element The stub end of cavity inside the stub end of bar, Taper Pipe is mutually fixed, the both ends of compressible type reseting elastic element respectively with normal direction not Etc. the rigidity cone small head end of bar, cavity inside Taper Pipe small head end be in contact.

It is bored when rigidity is made of with velocity modulation regulating device Taper Pipe and smooth surface type cone cell bar, or by Taper Pipe and stepped surfaces type Shape bar composition, then or by Taper Pipe and chain-type cone bar form when, with swimmer's swinging kick frequency or swinging kick rate increase, centrifugal force Or inertia force increases, smooth surface type cone cell bar, stepped surfaces type cone cell bar or chain-type cone bar overcome reseting elastic element Elastic force is moved backward along the longitudinal axis of Taper Pipe, and the bending stiffness with fast variation rigidity longitudinal keel becomes larger；Swimmer's swinging kick frequency or When swinging kick rate reduces, as centrifugal force or inertia force reduce, smooth surface type cone cell bar, stepped surfaces type cone cell bar or chain Formula bores bar under the elastic force effect of reseting elastic element, and the longitudinal axis along Taper Pipe moves forward, with fast variation rigidity longitudinal keel Bending stiffness becomes smaller；When rigidity is made of with velocity modulation regulating device Taper Pipe and telescopic antenna type cone cell bar, with swimmer's swinging kick Frequency or swinging kick rate increase, and centrifugal force or inertia force increase, and telescopic antenna type cone cell bar overcomes the elastic force of reseting elastic element Longitudinal axis along Taper Pipe stretches out step by step backward, and the bending stiffness with fast variation rigidity longitudinal keel becomes larger, closer to that grade of outer layer The section girth of bar is bigger, quality is bigger, suffered centrifugal force or inertia force are bigger, more first stretches out；Swimmer's swinging kick frequency or When swinging kick rate reduces, as centrifugal force or inertia force reduce, telescopic antenna type cone cell bar is made in the elastic force of reseting elastic element Under, the longitudinal axis along Taper Pipe is taken in forward step by step, and the bending stiffness with fast variation rigidity longitudinal keel becomes smaller, closer to internal layer The section girth of that grade of bar is smaller, quality is smaller, suffered centrifugal force or inertia force are smaller, more first takes in.

The smooth surface of the section girth consecutive variations bores bar, the smooth table that usually length is fixed, shape is fixed Face type cone cell bar.The reseting elastic element includes but is not limited to compressed spring, extension spring, disc spring, elastic slice, rubber band.

It is also filled with to reduce between Taper Pipe and normal direction unequal rigidity cone bar and rub between Taper Pipe and normal direction unequal rigidity cone bar The lubricant medium of resistance, the lubricant medium include but is not limited to lubricating oil, lubricating grease, lubricating fluid.

The longitudinal axis of the Taper Pipe is the smooth curve of consecutive variations, transversal perpendicular to the Taper Pipe inner cavity of the longitudinal axis of Taper Pipe Face is for ellipse and after each Taper Pipe lumenal cross-section perimeter is from front one end of swimmer's direction of travel to swimmer's direction of travel Fang Yiduan is gradually reduced, and bores bar outer profile cross section also perpendicular to the normal direction unequal rigidity of the longitudinal axis of normal direction unequal rigidity cone bar Bar outer profile section girth is bored from front one end of swimmer's direction of travel to swimmer for oval and each normal direction unequal rigidity Rear one end of direction of travel is also gradually reduced, and the Taper Pipe lumenal cross-section elliptical shape at same section is identical to normal direction etc. Rigidity bores bar outer profile cross section elliptical shape, and the Taper Pipe lumenal cross-section oval perimeters at same section are greater than normal direction and differ Rigidity bores bar outer profile cross section oval perimeters, i.e., the Taper Pipe lumenal cross-section ellipse at same section is that the normal direction at this differs Rigidity cone bar outer profile cross section is elliptical to be scaled up, in the normal direction perpendicular with the longitudinal axis of normal direction unequal rigidity cone bar On the elliptical long axis in normal direction unequal rigidity cone bar outer profile cross section and short-axis direction in plane, that is, it is parallel to paddle blade or fin keel Normal direction on and perpendicular in the normal direction of paddle blade or fin keel, the bending stiffness that normal direction unequal rigidity bores bar is not identical, Accordingly perpendicular to the elliptical long axis of Taper Pipe lumenal cross-section of the longitudinal axis of Taper Pipe and perpendicular to normal direction unequal rigidity cone bar The normal direction unequal rigidity cone elliptical long axis in bar outer profile cross section of longitudinal axis is parallel simultaneously or both perpendicular to paddle blade or fin keel, It is described it is novel with fast variation rigidity fetch water propulsion device include both feet wear one single web of both feet altogether, both feet respectively wear one both feet it is double Web also includes the bionic caudal fin that both feet wear one altogether, further includes variable tail fin, both feet list web, that is, dolphin web.

The preceding paragraph fall in normal direction unequal rigidity cone bar so that with the variation of swimmer's swinging kick frequency or swinging kick rate, It is stronger with the directive property of fast variation characteristic with the rigidity of fast variation rigidity longitudinal keel, equal volume, weight it is vertical with fast variation rigidity To keel response is sensitiveer, responsiveness is higher, to reduce a whole set of novel fetch water the volume of propulsion device with fast variation rigidity And weight；The smooth curve of consecutive variations and the method for intraspinal tube can be designed to the longitudinal axis of fast variation rigidity longitudinal keel simultaneously It can longitudinal movement more freely to unequal rigidity cone bar.

The longitudinal axis of the Taper Pipe is the smooth curve of consecutive variations, transversal perpendicular to the Taper Pipe inner cavity of the longitudinal axis of Taper Pipe Face is for rectangle and after each Taper Pipe lumenal cross-section perimeter is from front one end of swimmer's direction of travel to swimmer's direction of travel Fang Yiduan is gradually reduced, and bores bar outer profile cross section also perpendicular to the normal direction unequal rigidity of the longitudinal axis of normal direction unequal rigidity cone bar For rectangle and each normal direction unequal rigidity bores bar outer profile section girth from front one end of swimmer's direction of travel to swimmer Rear one end of direction of travel is also gradually reduced, and the Taper Pipe lumenal cross-section rectangular shape at same section is identical to normal direction etc. Rigidity bores bar outer profile cross section rectangular shape, and the Taper Pipe lumenal cross-section rectangular perimeter at same section is greater than normal direction and differs Rigidity bores bar outer profile cross section rectangular perimeter, i.e., the Taper Pipe lumenal cross-section rectangle at same section is that the normal direction at this differs Rigidity bores scaling up for bar outer profile cross section rectangle, in the normal direction perpendicular with the longitudinal axis of normal direction unequal rigidity cone bar In the long side and short side direction of normal direction unequal rigidity cone bar outer profile cross section rectangle in plane, that is, it is parallel to paddle blade or fin keel Normal direction on and perpendicular in the normal direction of paddle blade or fin keel, the bending stiffness that normal direction unequal rigidity bores bar is not identical, Long side perpendicular to the Taper Pipe lumenal cross-section rectangle of the longitudinal axis of Taper Pipe and perpendicular to normal direction unequal rigidity cone bar accordingly The long side of the normal direction unequal rigidity cone bar outer profile cross section rectangle of longitudinal axis is parallel simultaneously or both perpendicular to paddle blade or fin keel, It is described it is novel with fast variation rigidity fetch water propulsion device include both feet wear one single web of both feet altogether, both feet respectively wear one both feet it is double Web also includes the bionic caudal fin that both feet wear one altogether, further includes variable tail fin, both feet list web, that is, dolphin web.

The preceding paragraph fall in normal direction unequal rigidity cone bar, again such that with the change of swimmer's swinging kick frequency or swinging kick rate Change, it is stronger with the directive property of fast variation characteristic with the rigidity of fast variation rigidity longitudinal keel, equal volume, weight with fast variation rigidity The response of longitudinal keel is sensitiveer, responsiveness is higher, to reduce a whole set of novel fetch water the body of propulsion device with fast variation rigidity Long-pending and weight；The smooth curve and intraspinal tube of consecutive variations can be designed to the longitudinal axis of fast variation rigidity longitudinal keel simultaneously Normal direction unequal rigidity bores bar can longitudinal movement more freely.

The longitudinal axis of the Taper Pipe is the smooth curve of consecutive variations, transversal perpendicular to the Taper Pipe inner cavity of the longitudinal axis of Taper Pipe Face is for rectangle and after each Taper Pipe lumenal cross-section perimeter is from front one end of swimmer's direction of travel to swimmer's direction of travel Fang Yiduan is gradually reduced, and bores bar outer profile cross section also perpendicular to the normal direction unequal rigidity of the longitudinal axis of normal direction unequal rigidity cone bar For rectangle and each normal direction unequal rigidity bores bar outer profile section girth from front one end of swimmer's direction of travel to swimmer Rear one end of direction of travel is also gradually reduced, and the Taper Pipe lumenal cross-section rectangular shape at same section is identical to normal direction etc. Rigidity bores bar outer profile cross section rectangular shape, and the Taper Pipe lumenal cross-section rectangular perimeter at same section is greater than normal direction and differs Rigidity bores bar outer profile cross section rectangular perimeter, i.e., the Taper Pipe lumenal cross-section rectangle at same section is that the normal direction at this differs Rigidity bores scaling up for bar outer profile cross section rectangle, in the normal direction perpendicular with the longitudinal axis of normal direction unequal rigidity cone bar In the long side and short side direction of normal direction unequal rigidity cone bar outer profile cross section rectangle in plane, that is, it is parallel to paddle blade or fin keel Normal direction on and perpendicular in the normal direction of paddle blade or fin keel, the bending stiffness that normal direction unequal rigidity bores bar is not identical, Corresponding normal direction unequal rigidity cone bar is that the chain-type that chain link is gradually reduced bores bar, i.e., from front one end of swimmer's direction of travel It is gradually reduced to the chain link of rear one end chain of swimmer's direction of travel, the articulated shaft between each chain link of chain is each perpendicular to Paddle blade or fin keel are correspondingly parallel to the bending stiffness of the normal direction unequal rigidity cone bar on paddle blade or fin keel direction much smaller than vertical It is described novel to fetch water propulsion device with fast variation rigidity in the bending stiffness of the normal direction unequal rigidity cone bar on paddle blade or fin keel direction The double webs of both feet that one is respectively worn including the single web of both feet, both feet that both feet wear one altogether, also include the bionical tail that both feet wear one altogether Fin further includes variable tail fin, both feet list web, that is, dolphin web.

The preceding paragraph fall in chain-type cone bar become with speed so that with the variation of swimmer's swinging kick frequency or swinging kick rate The rigidity of rigidity longitudinal keel is most strong with the directive property of fast variation characteristic, equal volume, weight with fast variation rigidity longitudinal keel Response is most sensitive, responsiveness highest, to reduce a whole set of novel fetch water the body of propulsion device with fast variation rigidity to the maximum extent Long-pending and weight；The smooth curve and intraspinal tube of consecutive variations can be designed to the longitudinal axis of fast variation rigidity longitudinal keel simultaneously Normal direction unequal rigidity bores bar can longitudinal movement freely completely.

The variable tail fin includes main tail fin and is arranged in the left side being hinged at left and right sides of main tail fin and with main tail fin respectively Tail fin and right tail fin, main tail fin, left tail fin, right tail fin are parallel to each other and, main tail fin parallel with the water surface in waters locating for swimmer In addition left tail fin opens up variable area along with the fin exhibition variable-width or fin of right tail fin, the front end connection tail fin of main tail fin is fixed Bar, tail fin fixed link are fixed between the both legs of swimmer or between both feet, the left and right sides point of tail fin fixed link intermediate space 2 change fin pedals of swimmer or so foot She You not be fixed, 2 change fin pedals pass through respective articulated shaft respectively to be fixed with tail fin Bar is hinged respectively, 2 change fin pedals also respectively by respective linkage element and left tail fin, right tail fin realize it is ipsilateral couple or Heteropleural connection；Swimmer can realize that the variable tail fin of swing adjusts in the process by synchronous rotation ankle or asynchronous rotary ankle and can be changed The function of fin broadening degree or fin the developable surface product of tail fin, i.e. realization acceleration and deceleration function or turning function.The direction that swimmer advances is Front.Left tail fin includes the left longitudinal keel in the longitudinal side of left fin keel and the left-external side positioned at left fin keel, and right tail fin includes Right fin keel and the right longitudinal keel in the right lateral longitudinal side of right fin keel, it is generally the case that left longitudinal keel and the right side Longitudinal keel is with fast variation rigidity longitudinal keel.Longitudinal side is longitudinal profile outer.

Alternatively, the variable tail fin include tail fin fixed link and be arranged at left and right sides of tail fin fixed link end and respectively with The left tail fin and right tail fin that tail fin fixed link is hinged, left tail fin and right tail fin are parallel to each other and the water with waters locating for swimmer Face is parallel, and left tail fin opens up variable area plus the fin exhibition variable-width or fin of right tail fin, and trip is fixed in the front end of tail fin fixed link Between the both legs of swimmer or between both feet, tail fin fixed link intermediate space is respectively arranged on the left side and the right side fixed swimmer or so foot 2 change fin pedals, 2 change fin pedals are hinged by respective articulated shaft and tail fin fixed link respectively respectively, and 2 change fins are stepped on Plate also realizes ipsilateral couple or heteropleural connection by respective linkage element and left tail fin, right tail fin respectively；Swimmer passes through same Step rotation ankle or asynchronous rotary ankle can realize fin broadening degree or the fin exhibition that variable tail fin adjusts variable tail fin in the process of swinging The function of area, i.e. realization acceleration and deceleration function or turning function.The direction that swimmer advances is front.Left tail fin includes left fin keel With the left longitudinal keel in the longitudinal side for the left-external side for being located at left fin keel, right tail fin includes right fin keel and positioned at the right side of right fin keel Right longitudinal keel in the longitudinal side in outside, it is generally the case that left longitudinal keel and right longitudinal keel are with fast variation rigidity Longitudinal keel.Longitudinal side is longitudinal profile outer.

Fin broadening degree is analogous to the span-width of birds, and fin developable surface product is analogous to the span area of birds.

In the present invention, the material for making the rigid rod includes but is not limited to engineering plastics, glass reinforced plastic, carbon fiber, thin-walled Steel, aluminium alloy, titanium alloy, thin-walled copper alloy, ceramics, tempered glass, bamboo and wood material, nylon, lightweight and high intensity, to meet length The requirement of time, big load operation.

The present invention has the advantages that

1. normal direction unequal rigidity of the invention bores bar, flat in the normal direction perpendicular with the longitudinal axis of normal direction unequal rigidity cone bar In the normal direction of two orthogonal normal direction unequal rigidity cone bar longitudinal axis in face, normal direction unequal rigidity bores the bending of bar Rigidity is not identical, with the variation of swimmer's swinging kick frequency or swinging kick rate, becomes with the rigidity of fast variation rigidity longitudinal keel with speed The directive property for changing characteristic is stronger, equal volume, the response with fast variation rigidity longitudinal keel of weight be sensitiveer, responsiveness more Height, to reduce a whole set of novel fetch water the volume and weight of propulsion device with fast variation rigidity；Simultaneously with fast variation rigidity longitudinal keel Longitudinal axis can be designed to consecutive variations smooth curve and intraspinal tube normal direction unequal rigidity cone bar can indulge more freely To movement.

2. the chain-type in normal direction unequal rigidity cone bar of the invention bores bar, the articulated shaft between each chain link of chain hangs down Directly in paddle blade or fin keel, the normal direction unequal rigidity in the Normal plane perpendicular with the longitudinal axis of normal direction unequal rigidity cone bar is bored In the long side and short side direction of bar outer profile cross section rectangle, the normal direction unequal rigidity being parallel on paddle blade or fin keel direction bores bar Bending stiffness be much smaller than perpendicular on paddle blade or fin keel direction normal direction unequal rigidity cone bar bending stiffness, with swimmer The variation of swinging kick frequency or swinging kick rate, it is most strong with the directive property of fast variation characteristic with the rigidity of fast variation rigidity longitudinal keel, together In equal volume, the response with fast variation rigidity longitudinal keel of weight is most sensitive, responsiveness highest, to reduce to the maximum extent a whole set of It is novel to fetch water the volume and weight of propulsion device with fast variation rigidity；It can be designed with the longitudinal axis of fast variation rigidity longitudinal keel simultaneously The normal direction unequal rigidity cone bar of smooth curve and intraspinal tube at consecutive variations can longitudinal movement freely completely.

3. it is of the invention it is novel fetch water propulsion device with fast variation rigidity, swimmer's high speed that can be fetched water with higher frequency is fast Trip, the low speed that can also be fetched water with lower frequency are swum slowly, with the variation or swimmer's swinging kick frequency or swinging kick rate for swimming speed Variation, it is novel to change therewith with the fetch water rigidity with fast variation rigidity longitudinal keel of propulsion device of fast variation rigidity, no matter Which kind of fetch water under frequency, swimmer can effectively improve the specific gravity of useful work, before promoting swimming and diving to the maximum extent Into efficiency and You Su and physical strength is saved, gives full play of the traveling potential of swimmer in water, is finally reached for a long time, over long distances The purpose that continuous high speed is cruised.

4. it is of the invention it is novel fetch water propulsion device with fast variation rigidity, swimmer is cruised by speed change, be can be effectively reduced Over long distances, the feeling of fatigue generated when continuously cruising for a long time.

5. structure of the invention is light and handy, reliable operation, corresponding manufacture craft is simple, low in cost, convenient for large-scale production With universal use.

Detailed description of the invention

Fig. 1 is that novel comprising paddle blade or fin keel and the longitudinal keels of left and right two of the invention fetches water propulsion with fast variation rigidity The composed structure schematic diagram of device.

In figure: 1, novel to fetch water propulsion device with fast variation rigidity；101, paddle blade；102, longitudinal keel.

Wherein two longitudinal keels 102 in left and right are with fast variation rigidity longitudinal keel.

Specific embodiment

Specific embodiments of the present invention will be further explained with reference to the accompanying drawing:

It fetches water the composed structure of propulsion device 1 as shown in Figure 1, one kind of the invention is novel with fast variation rigidity, mainly includes Two longitudinal keels 102 of paddle blade 101 and left and right, wherein two longitudinal keels 102 in left and right are with fast variation rigidity longitudinal keel.

Specific embodiments of the present invention are as follows:

Embodiment one: it fetches water propulsion device 1 as shown in Figure 1, one kind of the invention is novel with fast variation rigidity, mainly includes web Two longitudinal keels 102 of plate 101 and left and right.

Novel shown in Fig. 1 to fetch water propulsion device 1 with fast variation rigidity as the single web of both feet, longitudinal keel 102 is left and right It two, is located in two longitudinal sides of the left and right sides of the paddle blade 101 of double-legged single web, two longitudinal keels 102 are equal For with fast variation rigidity longitudinal keel.

The preceding paragraph fall described in include whole rigid rod with fast variation rigidity longitudinal keel and be hidden in its internal rigidity With velocity modulation regulating device.The rigidity is made of with velocity modulation regulating device the content in the Taper Pipe and Taper Pipe of rigid rod inner hollow.It should Content can be non-newtonian fluid, is also possible to normal direction unequal rigidity cone bar and reseting elastic element is added to add lubricant medium again.

The cross section of the rear one end of the rigid rod from front one end of swimmer's direction of travel to swimmer's direction of travel The section girth of profile perimeter and the Taper Pipe cavity of inside is gradually reduced, the cross-sectional profiles perimeter of the content in Taper Pipe Rear one end from from front one end of swimmer's direction of travel to swimmer's direction of travel is also gradually reduced accordingly.

When swimmer's swinging kick frequency or swinging kick rate increase, which makes longitudinal with fast variation rigidity with velocity modulation regulating device The bending stiffness of keel becomes larger；When swinging kick frequency or swinging kick rate reduce, which makes with velocity modulation regulating device with fast variation rigidity The bending stiffness of longitudinal keel becomes smaller.

Swimmer can be fetched water with higher frequency, and high speed is fast to swim, and the low speed that can also be fetched water with lower frequency is swum slowly, with Trip speed variation or swimmer's swinging kick frequency or swinging kick rate variation, it is novel with fast variation rigidity fetch water propulsion device 1 with The bending stiffness of fast variation rigidity longitudinal keel changes therewith, no matter fetches water under which kind of frequency, swimmer can be effective The specific gravity of useful work is improved, the advance efficiency and You Su and saving physical strength for promoting swimming to the maximum extent and diving under water give full play to The traveling potential of swimmer in water out is finally reached long-time, the purpose that long range continuous high speed is cruised；Swimmer passes through change Speed is cruised, the feeling of fatigue generated when long range can also be effectively reduced, continuously cruising for a long time.

The longitudinal axis of the Taper Pipe is the smooth curve of consecutive variations, transversal perpendicular to the Taper Pipe inner cavity of the longitudinal axis of Taper Pipe Face is for ellipse and after each Taper Pipe lumenal cross-section perimeter is from front one end of swimmer's direction of travel to swimmer's direction of travel Fang Yiduan is gradually reduced, and bores bar outer profile cross section also perpendicular to the normal direction unequal rigidity of the longitudinal axis of normal direction unequal rigidity cone bar Bar outer profile section girth is bored from front one end of swimmer's direction of travel to swimmer for oval and each normal direction unequal rigidity Rear one end of direction of travel is also gradually reduced, and the Taper Pipe lumenal cross-section elliptical shape at same section is identical to normal direction etc. Rigidity bores bar outer profile cross section elliptical shape, and the Taper Pipe lumenal cross-section oval perimeters at same section are greater than normal direction and differ Rigidity bores bar outer profile cross section oval perimeters, i.e., the Taper Pipe lumenal cross-section ellipse at same section is that the normal direction at this differs Rigidity cone bar outer profile cross section is elliptical to be scaled up, in the normal direction perpendicular with the longitudinal axis of normal direction unequal rigidity cone bar On the elliptical long axis in normal direction unequal rigidity cone bar outer profile cross section and short-axis direction in plane, that is, it is parallel to the normal of paddle blade In normal direction on direction and perpendicular to paddle blade, normal direction unequal rigidity bore bar bending stiffness it is not identical, accordingly perpendicular to The normal direction of the elliptical long axis of Taper Pipe lumenal cross-section of the longitudinal axis of Taper Pipe and the longitudinal axis perpendicular to normal direction unequal rigidity cone bar Unequal rigidity bores the elliptical long axis in bar outer profile cross section both perpendicular to paddle blade.

It is special with speed variation with the rigidity of fast variation rigidity longitudinal keel with the variation of swimmer's swinging kick frequency or swinging kick rate The directive property of property is stronger, and equal volume, the response with fast variation rigidity longitudinal keel of weight is sensitiveer, responsiveness is higher, from And reduce a whole set of novel fetch water the volume and weight of propulsion device 1 with fast variation rigidity；Simultaneously with the vertical of fast variation rigidity longitudinal keel Axis can be designed to that the normal direction unequal rigidity cone bar of the smooth curve of consecutive variations and intraspinal tube more longitudinal can be transported It is dynamic.

Embodiment provided above is better embodiment of the invention, only is used to facilitate to illustrate the present invention, not to this hair Bright to make any form of restriction, any those of ordinary skill in the art is not departing from the proposed technology of the present invention In the range of feature, using the equivalent embodiment locally changed or modified made by disclosed technology contents, and not It is detached from technical feature content of the invention, in the range of still falling within the technology of the present invention feature.

Claims (6)

1. It fetches water propulsion device (1) 1. one kind is novel with fast variation rigidity, including paddle blade (101) and longitudinal keel (102), or including fin Plate and longitudinal keel (102), it is characterised in that: the longitudinal keel being located in the paddle blade (101) or the longitudinal side of fin keel (102) at least one for rigidity with speed it is variable with fast variation rigidity longitudinal keel, it is described to include with fast variation rigidity longitudinal keel With velocity modulation regulating device, the rigidity includes in rigid rod with velocity modulation regulating device at least one section of rigid rod and the rigidity of at least one Content portion hollow Taper Pipe and be hidden in Taper Pipe, the content being hidden in Taper Pipe be non-newtonian fluid, or for Taper Pipe is total to longitudinal axis and can bore bar along the normal direction unequal rigidity that the longitudinal axis of Taper Pipe vertically moves, and the longitudinal axis of the Taper Pipe is song Line or straight line, the Taper Pipe lumenal cross-section perpendicular to the longitudinal axis of Taper Pipe is non-circular or non-equilateral and each Taper Pipe inner cavity is transversal Face perimeter is gradually reduced from front one end of swimmer's direction of travel to rear one end of swimmer's direction of travel, perpendicular to normal direction The normal direction unequal rigidity cone bar outer profile cross section that unequal rigidity bores the longitudinal axis of bar is also non-circular or non-equilateral and each method After boring bar outer profile section girth from front one end of swimmer's direction of travel to swimmer's direction of travel to unequal rigidity Fang Yiduan is also gradually reduced, and it is horizontal that the Taper Pipe lumenal cross-section shape at same section is identical to normal direction unequal rigidity cone bar outer profile Cross sectional shape, and the Taper Pipe lumenal cross-section perimeter at same section is greater than normal direction unequal rigidity cone bar outer profile cross section week Long, i.e., the Taper Pipe lumenal cross-section shape at same section is that the normal direction unequal rigidity at this bores bar outer profile cross-sectional shape It scales up, two orthogonal normal direction in the Normal plane perpendicular with the longitudinal axis of normal direction unequal rigidity cone bar Unequal rigidity is bored in the normal direction of bar longitudinal axis, and the bending stiffness that normal direction unequal rigidity bores bar is not identical, described novel with speed Variation rigidity propulsion device (1) of fetching water includes that both feet wear one single web of both feet altogether, both feet respectively wear one double web of both feet, also includes Both feet wear one bionic caudal fin altogether, further include variable tail fin, both feet list web, that is, dolphin web.
2. It fetches water propulsion device (1) 2. one kind according to claim 1 is novel with fast variation rigidity, it is characterised in that: when described The content being hidden in Taper Pipe is the normal direction unequal rigidity cone bar that longitudinal axis is total to Taper Pipe, i.e., the described rigidity is with velocity modulation regulating device packet The Taper Pipe and normal direction unequal rigidity cone bar of rigid rod inner hollow are included, being also equipped between Taper Pipe and normal direction unequal rigidity cone bar makes to send out The reseting elastic element that the normal direction unequal rigidity cone bar of raw longitudinal movement resets, the normal direction unequal rigidity cone bar includes cross section The smooth surface of perimeter consecutive variations bores bar, also includes the stepped surfaces cone bar that section girth discontinuously changes, further includes chain The chain-type cone bar being gradually reduced is saved, the stepped surfaces cone bar includes the stepped surfaces type cone cell that length is fixed, shape is fixed Bar and length is variable, telescopic telescopic antenna type cone cell bar.
3. It fetches water propulsion device (1) 3. one kind according to claim 2 is novel with fast variation rigidity, it is characterised in that: the cone The lubrication for reducing frictional resistance between Taper Pipe and normal direction unequal rigidity cone bar is also filled between pipe and normal direction unequal rigidity cone bar Medium, the lubricant medium include lubricating oil, lubricating grease, lubricating fluid.
4. It fetches water propulsion device (1) 4. one kind according to claim 3 is novel with fast variation rigidity, it is characterised in that: the cone The longitudinal axis of pipe is the smooth curve of consecutive variations, and the Taper Pipe lumenal cross-section perpendicular to the longitudinal axis of Taper Pipe is oval and each cone Tube cavity section girth is gradually reduced from front one end of swimmer's direction of travel to rear one end of swimmer's direction of travel, Normal direction unequal rigidity cone bar outer profile cross section perpendicular to the longitudinal axis of normal direction unequal rigidity cone bar is also oval and each normal direction Unequal rigidity bores bar outer profile section girth from front one end of swimmer's direction of travel to the rear of swimmer's direction of travel One end is also gradually reduced, and the Taper Pipe lumenal cross-section elliptical shape at same section is identical to normal direction unequal rigidity cone bar outer profile Cross section elliptical shape, and the Taper Pipe lumenal cross-section oval perimeters at same section are greater than normal direction unequal rigidity and bore bar outer profile Cross section oval perimeters, i.e., the Taper Pipe lumenal cross-section ellipse at same section are that the normal direction unequal rigidity at this bores bar outer profile Cross section is elliptical to be scaled up, and the normal direction in the Normal plane perpendicular with the longitudinal axis of normal direction unequal rigidity cone bar is not Etc. on the rigidity elliptical long axis in cone bar outer profile cross section and short-axis direction, that is, be parallel in the normal direction of paddle blade or fin keel and Perpendicular in the normal direction of paddle blade or fin keel, the bending stiffness that normal direction unequal rigidity bores bar is not identical, accordingly perpendicular to cone The elliptical long axis of Taper Pipe lumenal cross-section of the longitudinal axis of pipe and perpendicular to normal direction unequal rigidity cone bar longitudinal axis normal direction not Etc. the rigidity cone elliptical long axis in bar outer profile cross section it is parallel simultaneously or both perpendicular to paddle blade or fin keel, it is described novel to become with speed Rigidity propulsion device (1) of fetching water includes that both feet wear one single web of both feet altogether, both feet respectively wear one double web of both feet, also includes double Foot wears one bionic caudal fin altogether, further includes variable tail fin, both feet list web, that is, dolphin web.
5. It fetches water propulsion device (1) 5. one kind according to claim 3 is novel with fast variation rigidity, it is characterised in that: the cone The longitudinal axis of pipe is the smooth curve of consecutive variations, and the Taper Pipe lumenal cross-section perpendicular to the longitudinal axis of Taper Pipe is rectangle and each cone Tube cavity section girth is gradually reduced from front one end of swimmer's direction of travel to rear one end of swimmer's direction of travel, Normal direction unequal rigidity cone bar outer profile cross section perpendicular to the longitudinal axis of normal direction unequal rigidity cone bar is also rectangle and each normal direction Unequal rigidity bores bar outer profile section girth from front one end of swimmer's direction of travel to the rear of swimmer's direction of travel One end is also gradually reduced, and the Taper Pipe lumenal cross-section rectangular shape at same section is identical to normal direction unequal rigidity cone bar outer profile Cross section rectangular shape, and the Taper Pipe lumenal cross-section rectangular perimeter at same section is greater than normal direction unequal rigidity and bores bar outer profile Cross section rectangular perimeter, i.e., the Taper Pipe lumenal cross-section rectangle at same section are that the normal direction unequal rigidity at this bores bar outer profile Cross section rectangle scales up, and the normal direction in the Normal plane perpendicular with the longitudinal axis of normal direction unequal rigidity cone bar is not Etc. rigidity cone bar outer profile cross section rectangle long side and short side direction on, that is, be parallel in the normal direction of paddle blade or fin keel and Perpendicular in the normal direction of paddle blade or fin keel, the bending stiffness that normal direction unequal rigidity bores bar is not identical, accordingly perpendicular to cone The long side of the Taper Pipe lumenal cross-section rectangle of the longitudinal axis of pipe and perpendicular to normal direction unequal rigidity cone bar longitudinal axis normal direction not Etc. rigidity cone bar outer profile cross section rectangle long side it is parallel simultaneously or both perpendicular to paddle blade or fin keel, it is described novel to become with speed Rigidity propulsion device (1) of fetching water includes that both feet wear one single web of both feet altogether, both feet respectively wear one double web of both feet, also includes double Foot wears one bionic caudal fin altogether, further includes variable tail fin, both feet list web, that is, dolphin web.
6. It fetches water propulsion device (1) 6. one kind according to claim 5 is novel with fast variation rigidity, it is characterised in that: the cone The longitudinal axis of pipe is the smooth curve of consecutive variations, and the Taper Pipe lumenal cross-section perpendicular to the longitudinal axis of Taper Pipe is rectangle and each cone Tube cavity section girth is gradually reduced from front one end of swimmer's direction of travel to rear one end of swimmer's direction of travel, Normal direction unequal rigidity cone bar outer profile cross section perpendicular to the longitudinal axis of normal direction unequal rigidity cone bar is also rectangle and each normal direction Unequal rigidity bores bar outer profile section girth from front one end of swimmer's direction of travel to the rear of swimmer's direction of travel One end is also gradually reduced, and the Taper Pipe lumenal cross-section rectangular shape at same section is identical to normal direction unequal rigidity cone bar outer profile Cross section rectangular shape, and the Taper Pipe lumenal cross-section rectangular perimeter at same section is greater than normal direction unequal rigidity and bores bar outer profile Cross section rectangular perimeter, i.e., the Taper Pipe lumenal cross-section rectangle at same section are that the normal direction unequal rigidity at this bores bar outer profile Cross section rectangle scales up, and the normal direction in the Normal plane perpendicular with the longitudinal axis of normal direction unequal rigidity cone bar is not Etc. rigidity cone bar outer profile cross section rectangle long side and short side direction on, that is, be parallel in the normal direction of paddle blade or fin keel and Perpendicular in the normal direction of paddle blade or fin keel, the bending stiffness that normal direction unequal rigidity bores bar is not identical, corresponding normal direction etc. Rigidity cone bar is that the chain-type that chain link is gradually reduced bores bar, i.e., from front one end of swimmer's direction of travel to swimmer traveling side To the chain link of rear one end chain be gradually reduced, the articulated shaft between each chain link of chain is each perpendicular to paddle blade or fin keel, phase The bending stiffness for the normal direction unequal rigidity cone bar being parallel to answering on paddle blade or fin keel direction is much smaller than perpendicular to paddle blade or fin keel On direction normal direction unequal rigidity cone bar bending stiffness, it is described it is novel with fast variation rigidity fetch water propulsion device (1) include both feet One double-legged list web is worn altogether, the double-legged double webs of both feet for respectively wearing one further include also including the double-legged bionic caudal fin for wearing one altogether Variable tail fin, both feet list web, that is, dolphin web.