CN110732124A - speed-sensitive pressure-relief backflow valve and application thereof to automatic rigidity changing characteristic along with speed - Google Patents

Abstract

The invention discloses speed-sensitive pressure-relief valve and application thereof to automatic rigidity change along with speed, wherein the speed-sensitive pressure-relief valve comprises a hydraulic cylinder, a one-way valve and an energy storage component, the hydraulic cylinder is positioned in the middle, the front end of the hydraulic cylinder is connected with the one-way valve, the rear end of the hydraulic cylinder is connected with the energy storage component, the hydraulic cylinder, the one-way valve and the energy storage component share a common longitudinal axis, the one-way valve can only be opened in the direction of oil outlet of the hydraulic cylinder, the speed-sensitive pressure-relief valve is butted with a web plate of a flipper and a liquid storage cavity or an air storage cavity arranged in a hollow taper tube of a longitudinal keel, or the speed-sensitive pressure-relief valve is butted with a fin plate of a bionic tail fin and a liquid storage cavity or an air storage cavity arranged in a hollow taper tube of the longitudinal keel, the flipper with the speed-sensitive pressure-relief valve or the bionic tail fin with the speed-sensitive pressure-relief valve has the characteristics of automatic rigidity change along with speed, the propelling power is variable, namely.

Description

speed-sensitive pressure-relief backflow valve and application thereof to automatic rigidity changing characteristic along with speed

Technical Field

The invention relates to the industries of swimming equipment and diving equipment, in particular to speed-sensitive pressure-relief valve and application thereof with the characteristic of automatic rigidity change along with speed, and the valve is mainly used for swimming and diving sports at present.

Background

In modern society, swimming and diving sports are increasingly popularized, various swimming equipment and diving equipment are layered endlessly, the vast majority of the swimming equipment and diving equipment use flippers as main propulsion tools for advancing, flippers with two feet are commonly worn by the two feet respectively, flippers with two feet are worn by the two feet together, bionic tail fins are worn by the two feet together, the flippers with two feet are driving force for advancing by alternate pumping water through the two legs of a swimmer, and the flippers with two feet and the bionic tail fins are driving force for advancing by synchronous pumping water through the two legs of the swimmer.

The optimum single water beating frequency is provided no matter the double-fin, the double-fin or the bionic tail fin, the swimmer can obtain the best propelling force only by beating water at the water beating frequency, when the swimmer wants to change the swimming speed, such as beating water at a higher frequency for fast swimming or beating water at a lower frequency for slow swimming, the propelling efficiency is reduced, especially when the swimmer beats water at a higher frequency, the propelling efficiency is not high, and the fatigue is generated quickly.

Disclosure of Invention

The swimmer can dive at a high speed and quickly swim at a high frequency and also can dive at a low speed and slowly swim at a low frequency by virtue of the characteristics of the speed-dependent automatic rigidity variation of the two swimming and diving equipment, the speed-sensitive pressure-relief reverse valve can automatically adjust the longitudinal bending rigidity of the two swimming and diving equipment along with the variation of swimming speed or the variation of leg swinging frequency or leg swinging speed of the swimmer, so that the propulsion power of the flipper or the bionic tail fin is automatically adjusted, the flipper or the bionic tail fin can achieve the purposes of continuously propelling power with variable propulsion power or variable propulsion power, namely continuously propelling power of the flipper or the bionic tail fin for a long time, effectively improving the swimming efficiency and continuously swimming speed, and effectively improving the swimming efficiency for a long time, and effectively improving the swimming efficiency and swimming speed and swimming efficiency for a long time.

The invention specifically adopts the following scheme:

speed sensitive pressure relief valve and application of the automatic rigidity changing characteristic along with the speed, wherein speed sensitive pressure relief valve comprises a hydraulic cylinder, a one-way valve and an energy storage assembly, and is characterized in that the hydraulic cylinder is positioned in the middle, the front end of the hydraulic cylinder is connected with the one-way valve, the rear end of the hydraulic cylinder is connected with the energy storage assembly, the hydraulic cylinder, the one-way valve and the energy storage assembly share a common longitudinal axis, and the one-way valve can only be opened towards the oil outlet direction of the hydraulic cylinder.

The hydraulic cylinder comprises a cylinder barrel and a piston, the inner diameter of the cylinder barrel and the outer diameter of the piston are mutually matched surfaces, the piston moves longitudinally in the cylinder barrel along the longitudinal axis of the cylinder barrel, at least O-shaped sealing rings are arranged between the piston and the matched surfaces of the cylinder barrel, the check valve comprises a valve core, a valve core bracket and a reset elastic element, the reset elastic element is usually a compression spring, the energy storage assembly comprises an energy storage cavity, a force adjusting elastic element and a force adjusting screw, the cylinder barrel and the valve core bracket are mutually butted in a manner of sharing the same longitudinal axis as the valve core bracket to form body, so that the hydraulic cylinder and the check valve are connected to form body, the cylinder barrel and the valve core bracket are usually connected in a threaded manner, the reset elastic element is positioned between the valve core bracket and the valve core bracket share the longitudinal axis, the valve core passes through an axial central positioning hole of the valve core bracket to move longitudinally along the longitudinal axis of the valve core bracket, under the pressing force of the reset elastic element, the valve core is pressed on the cylinder barrel surface of the hydraulic cylinder barrel of the valve core bracket, the valve core and the jointing surface of the cylinder barrel are matched and jointed with each other, so as to form a seal, at least throttling holes are opened on the jointing surface of the valve core, or the valve core, the valve core is also opened by the elastic element, the compression spring, the energy storage cavity is usually opened by the compression spring, the energy storage cavity is also the compression spring connected with the tail end of the energy storage cavity of the energy storage assembly, the energy storage cavity, the energy storage assembly, the energy storage cavity is usually closed by the energy storage cavity, the compression spring, the energy.

The bionic tail fin comprises a fin plate and a longitudinal keel positioned on two longitudinal sides or in a middle area of the fin plate, at least longitudinal keels in the longitudinal keel of the fin plate or the bionic tail fin are provided with hollow taper tubes and are arranged as liquid storage cavities or gas storage cavities, the bionic tail fin comprises a liquid storage cavity or a gas storage cavity, the liquid storage cavity or the gas storage cavity is communicated with the longitudinal fin plate or the fin plate, the bionic tail fin comprises a fin plate and a longitudinal keel positioned on two longitudinal sides or in the middle area of the fin plate, the bionic tail fin comprises a thin liquid storage cavity or at least liquid storage cavities containing at least liquid storage cavities or at least one special-shaped gas storage cavity, the fin plate or the fin tube is provided with a hollow taper tube, the fin plate is a special-shaped fin, the bionic tail fin is provided with a special-shaped fin, the bionic tail fin is a special-shaped fin, the bionic tail fin plate is a special-shaped fin, the bionic tail fin is a special-shaped fin, the special-shaped fin, the bionic tail fin is a special-shaped fin plate, the bionic tail fin is a bionic tail fin-shaped fin plate, the bionic tail fin-shaped fin is used for a swim fin-shaped fin-shaped fin, the bionic swim fin-shaped fin, the bionic fin-shaped fin-fin, the bionic fin-shaped fin is used for a fin-shaped fin, the bionic swim fin, the bionic fin-shaped fin, the bionic fin is used for a fin-shaped fin, the bionic fin-fin is used for a fin, the bionic.

Damping fluid is filled in a cylinder barrel and a liquid storage cavity of the hydraulic cylinder, and the damping fluid generally comprises but is not limited to lubricating oil, hydraulic oil, brake oil and lubricating fluid.

Damping gas is filled in the cylinder barrel and the air storage cavity of the hydraulic cylinder, and the damping gas generally comprises but is not limited to inert gas and air.

The speed sensitive pressure relief valve has the advantages that the damping effect is more obvious along with the higher flow rate of damping liquid or damping gas passing through a damping hole on the valve core, the pressure difference between the inner side and the outer side of the valve core is increased by the forward back pressure generated by the force adjusting elastic element and the gas in the energy storage cavity pressed by the force adjusting screw at the tail end of the energy storage cavity, the pressure in the liquid storage cavity or the gas storage cavity on the outer side of the valve core is higher than the pressure in the cylinder barrel of the hydraulic cylinder, and the liquid storage cavity or the gas storage cavity has the characteristic of automatic rigidity change along with the speed.

The deeper the force adjusting screw is screwed in, the greater the compression force of the damping liquid or the damping gas in the cylinder barrel along the longitudinal axis direction of the cylinder barrel is, the greater the stored energy in the energy storage cavity is, the higher the pressure in the liquid storage cavity and the gas storage cavity is correspondingly, the greater the initial longitudinal bending rigidity of the fin with the speed sensitive pressure relief valve or the bionic tail fin with the speed sensitive pressure relief valve is, otherwise, the smaller the initial longitudinal bending rigidity of the fin with the speed sensitive pressure relief valve or the bionic tail fin with the speed sensitive pressure relief valve is, and the initial longitudinal bending rigidity is the preset longitudinal bending rigidity.

When the swimmer swings the flipper with the speed-sensitive pressure-relief valve or the bionic tail fin with the speed-sensitive pressure-relief valve, the shape of the flipper, the fin plate or the longitudinal keel is changed in the process of bending up and down, the volume of the liquid storage cavity or the air storage cavity is correspondingly changed, the pressure is increased, in the middle of times of leg swinging actions of the swimmer, damping liquid or damping gas in the liquid storage cavity or the air storage cavity is forced to flow through the damping hole of the valve core of the one-way valve under the action of the pressure, when the leg swinging action is finished and the leg swinging is started reversely, the pressure of the damping liquid or the damping gas in the liquid storage cavity or the air storage cavity is reduced to the lowest value, the pressure at the two sides of the valve core is balanced due to the fact that a force adjusting screw at the tail end of the energy storage cavity compresses gas in the energy storage cavity and forward back pressure generated by the force adjusting elastic element, the valve core of the one-way valve is opened, the surplus damping liquid or the damping gas in the energy storage cavity is instantly squeezed into the liquid or the liquid storage cavity, the valve core is enabled to be more balanced, the valve core is reset under the elastic action of the elastic element, the swimmer, the higher the frequency adjusting screw at the higher the tail end of the swimmer, the higher the frequency or the bionic tail fin plate, the bionic tail fin plate or the bionic tail fin plate is still higher the bionic tail fin plate, the swimmer or the bionic tail fin plate, the bionic tail fin plate with the bionic tail fin plate, the bionic tail fin plate with the bionic tail fin plate, the bionic tail fin speed of the bionic tail fin plate, the bionic tail fin with the bionic tail fin.

The non-Newtonian fluid or DEFLEXON damping material is filled in a liquid storage cavity or a gas storage cavity in a hollow conical tube of the web plate, the fin plate or the longitudinal keel, a diaphragm is arranged inside the liquid storage cavity or the gas storage cavity in the web plate or the fin plate or inside the conical tube, the non-Newtonian fluid or the DEFLEXON damping material is arranged inside the diaphragm, damping liquid or damping gas is filled outside the diaphragm and communicated with the speed sensitive pressure relief reverse flow valve, the diaphragm can prevent the media on the two sides of the diaphragm from mutually permeating, and meanwhile, the pressure can be transmitted from the side of the diaphragm to the other side of the diaphragm.

And a plugging cover is arranged at the outlet of the speed sensitive pressure relief backflow valve communicated with the liquid storage cavity or the gas storage cavity in the large head end, the web plate or the fin plate of the taper pipe, and the non-Newtonian fluid or the DEFLEXON damping material is plugged in the liquid storage cavity or the gas storage cavity in the hollow taper pipe, the web plate or the fin plate in the longitudinal keel.

The non-Newtonian fluid is a speed sensitive material and becomes hard along with the increase of the bending rate of the liquid storage cavity or the air storage cavity, so that the flipper or the bionic tail fin has the characteristic of automatically changing rigidity along with the speed; the DEFLEXION cushioning material is a pressure sensitive material that hardens as the pressure in the reservoir or reservoir increases.

The longitudinal axis of the taper pipe is a curve or a straight line, the cross section of the taper pipe inner cavity perpendicular to the longitudinal axis of the taper pipe is non-circular or circular, and the perimeter of the cross section of each taper pipe inner cavity is gradually reduced from the front end of the swimmer in the advancing direction to the rear end of the swimmer in the advancing direction.

When a swimmer swings the flipper or the bionic tail fin, the liquid storage cavity or the air storage cavity filled with the non-Newtonian fluid or DEFLEXIN damping material is squeezed, bent and sheared in the process of bending up and down, the volume is changed, the non-Newtonian fluid or DEFLEXON damping material in the liquid storage cavity or the air storage cavity is squeezed, bent and sheared, the higher the leg swinging frequency or speed of the swimmer is, the higher the frequency or speed of squeezing, bending and shearing of the non-Newtonian fluid or DEFLEXON damping material is, the higher the pressure in the liquid storage cavity or the air storage cavity is, the higher the longitudinal bending rigidity of the liquid storage cavity or the air storage cavity is, the obvious automatic rigidity changing characteristic along with the speed is realized, and the higher propelling efficiency is still kept at the high swimming speed; conversely, the lower the swimmer's frequency or rate of swing, the lower the longitudinal bending stiffness of the reservoir or reservoir, thereby reducing the swim speed and still maintaining a higher propulsion efficiency at ground speed.

When the swimmer lies on the front of water, the upper clamping piece and the lower clamping piece which clamp the liquid storage cavity or the air storage cavity in the middle are respectively arranged in the upper area and the lower area which are parallel to the upper surface and the lower surface of the fin plate and are tangent or parallel to the inner wall of the liquid storage cavity or the air storage cavity.

The wedge-shaped cavity after the upper clamping piece and the lower clamping piece are added, in the process that a swimmer swings a flipper or a bionic tail fin, the flow of liquid or gas flowing into or out of the speed sensitive pressure relief reverse flow valve is larger under the action of the upper clamping piece and the lower clamping piece of the wedge-shaped cavity, the damping effect of the throttling hole on the valve core of the one-way valve protrudes more and more, so that the automatic rigidity changing characteristic of the flipper or the bionic tail fin along with the speed is more obvious, the upper clamping piece and the lower clamping piece can also extend to the whole area of a web plate of the flipper except for a part wrapping the foot or extend to the whole area of a fin plate of the bionic tail fin except for a part fixing the foot, so that the action volumes of the upper clamping piece and the lower clamping piece are increased, the flow of damping liquid or damping gas flowing into or out of the speed sensitive pressure relief reverse flow valve is further increased through , the damping effect of the throttling hole on the valve core of the one-way valve is further increased through , and the automatic rigidity changing characteristic of the flipper or the bionic tail fin along with.

The upper clamping piece and the lower clamping piece have the function of improving the degree of change of the volume of the liquid storage cavity or the air storage cavity in the up-and-down bending process of the swimmer in the leg swinging process, so that steps are carried out to amplify the speed-dependent automatic rigidity changing characteristic of the flipper with the speed-sensitive pressure relief valve or the bionic tail fin.

The upper clamping piece and the lower clamping piece are usually thin sheets made of rigid materials, the materials for manufacturing the upper clamping piece and the lower clamping piece generally comprise but are not limited to engineering plastics, glass fiber reinforced plastics, carbon fibers, thin-wall steel, aluminum alloy, titanium alloy, thin-wall copper alloy, ceramics, toughened glass, bamboo, wood, nylon, high-elastic rubber or polyurethane, the materials for manufacturing the upper clamping piece and the lower clamping piece can also be materials formed by compounding or bonding more than two materials in the section, namely materials synthesized and compounded through a physical method, the upper clamping piece and the lower clamping piece can be made of the same material or different materials, when the web plate or the fin plate is the rigid material, the upper clamping piece and the lower clamping piece can be omitted, and correspondingly, the wedge-shaped cavity is a cavity directly drawn out of the body of the web plate or the fin plate.

The flipper or the bionic tail fin can be provided with a speed sensitive pressure relief valve, the upper part of the liquid storage cavity or the gas storage cavity is filled with damping liquid or damping gas, the lower part of the liquid storage cavity or the gas storage cavity is filled with non-Newtonian fluid or DEFLEXON damping material, and the middle part of the liquid storage cavity or the gas storage cavity is separated by a diaphragm; and an upper clamping piece and a lower clamping piece which are used for clamping the liquid storage cavity or the gas storage cavity in the middle are respectively arranged in two areas of the upper part and the lower part of the web plate, the fin plate or the longitudinal keel which are parallel to the upper surface and the lower surface of the web plate or the fin plate and are tangent to or parallel to the inner wall of the liquid storage cavity or the gas storage cavity. The flipper or the bionic tail fin described in the paragraph has the characteristic of double-superposition automatic rigidity change along with the speed, the propulsion power of the flipper or the bionic tail fin is higher, and the speed change function is more prominent.

In the invention, the longitudinal keels of the double-foot single fin are usually left and right two and are respectively positioned on two longitudinal sides of the left and right sides of the fin plate of the double-foot single fin, under the normal condition, the two longitudinal keels comprise hollow taper pipes and are set into liquid storage cavities or gas storage cavities, the longitudinal keels of the bionic tail fin are usually left and right two and are respectively positioned on two longitudinal sides of the left and right sides of the fin plate of the bionic tail fin, under the normal condition, the two longitudinal keels also comprise hollow taper pipes and are set into liquid storage cavities or gas storage cavities, the longitudinal keels of each flippers of the double-foot double fin are usually left and right two and are respectively positioned on two longitudinal sides of each flippers of the double-foot double fin, under the normal condition, the four longitudinal keels also comprise hollow taper pipes and are set into liquid storage cavities or gas storage cavities.

The variable tail fin comprises a main tail fin, a left tail fin and a right tail fin, wherein the left tail fin and the right tail fin are arranged on the left side and the right side of the main tail fin and are respectively hinged with the main tail fin; the swimmer can realize the function of adjusting the fin span width or the fin span area of the variable tail fin in the process of swinging the variable tail fin by synchronously rotating the ankle or asynchronously rotating the ankle, namely, the function of accelerating and decelerating or turning. The direction of travel of the swimmer is forward. The left tail fin comprises a left fin plate and a left longitudinal keel positioned on the longitudinal side edge of the left outer side of the left fin plate, the right tail fin comprises a right fin plate and a right longitudinal keel positioned on the longitudinal side edge of the right outer side of the right fin plate, and under the ordinary condition, the left longitudinal keel and the right longitudinal keel both comprise hollow taper pipes and are arranged into a liquid storage cavity or a gas storage cavity.

Or, the variable tail fin comprises a tail fin fixing rod, a left tail fin and a right tail fin which are arranged on the left side and the right side of the tail fin fixing rod and are respectively hinged with the tail fin fixing rod, the left tail fin and the right tail fin are parallel to each other and are parallel to the water surface of the water area where the swimmer is located, the fin widening degree of the left tail fin and the right tail fin is variable or the fin spreading area is variable, the front end of the tail fin fixing rod is fixed between the legs or the feet of the swimmer, 2 variable fin pedals for fixing the left foot and the right foot of the swimmer are respectively arranged on the left side and the right side of the middle area of the tail fin fixing rod, the 2 variable fin pedals are respectively hinged with the tail fin fixing rod through respective hinge shafts, and the 2 variable fin pedals are respectively connected with the left tail fin and the right tail fin through respective linkage elements in a same side; the swimmer can realize the function of adjusting the fin span width or the fin span area of the variable tail fin in the process of swinging the variable tail fin by synchronously rotating the ankle or asynchronously rotating the ankle, namely, the function of accelerating and decelerating or turning. The direction of travel of the swimmer is forward. The left tail fin comprises a left fin plate and a left longitudinal keel positioned on the longitudinal side edge of the left outer side of the left fin plate, the right tail fin comprises a right fin plate and a right longitudinal keel positioned on the longitudinal side edge of the right outer side of the right fin plate, and under the ordinary condition, the left longitudinal keel and the right longitudinal keel both comprise hollow taper pipes and are arranged into a liquid storage cavity or a gas storage cavity.

The longitudinal side edges are the outer edges of the longitudinal profile.

In the present invention, the material for making the longitudinal keel generally includes, but is not limited to, high elastic rubber, plastic, polyurethane, glass fiber reinforced plastic, carbon fiber, thin-walled steel, aluminum alloy, titanium alloy, thin-walled copper alloy, ceramic, toughened glass, bamboo, wood or nylon, and is light and high in strength to meet the requirements of long-time and heavy-load work.

The materials for manufacturing the web plate and the fin plate generally include, but are not limited to, high-elasticity rubber, plastic, polyurethane, glass fiber reinforced plastic, carbon fiber, thin-wall steel, aluminum alloy, titanium alloy, thin-wall copper alloy, ceramic, toughened glass, bamboo, wood or nylon, and are light and high in strength so as to meet the requirements of long-time and heavy-load work.

The material for making the web plate, the fin plate or the longitudinal keel can also be a material formed by compounding or bonding more than two materials in the two sections, namely the material synthesized and compounded by a physical method, for example, the web plate and the fin plate can be made by using glass fiber reinforced plastics or carbon fiber as a substrate of an inner lining and wrapping and sticking high-elasticity rubber outside the web plate and the fin plate.

The web plate, the longitudinal keel, the fin plate and the longitudinal keel can be made of the same material or different materials.

The fin widening degree is similar to the wingspan width of birds, and the fin spreading area is similar to the wingspan area of birds.

The invention has the advantages that:

1. according to the speed-sensitive pressure-relief valve, the damping effect is more obvious along with the higher flow rate of damping liquid or damping gas passing through the damping hole on the valve core, the force-regulating screw at the tail end of the energy storage cavity presses the gas in the energy storage cavity and the forward back pressure generated by the force-regulating elastic element, the pressure difference between the inner side and the outer side of the valve core is increased, the pressure in the liquid storage cavity or the gas storage cavity on the outer side of the valve core is higher than the pressure in the cylinder barrel of the hydraulic cylinder, and the speed-sensitive pressure-relief valve enables the liquid storage cavity or the gas storage cavity to have the characteristic of automatically changing rigidity along with the.

2. According to the flipper with the speed-sensitive pressure-relief valve or the bionic tail fin with the speed-sensitive pressure-relief valve, a swimmer can beat water at a high speed and swim fast at a high frequency and beat water at a low speed and swim slowly at a low frequency, and the speed-sensitive pressure-relief valve can automatically adjust the longitudinal bending rigidity of the flipper or the bionic tail fin along with the change of the swimming speed or the change of the leg swinging frequency or the leg swinging speed of the swimmer.

3. According to the flipper with the speed-sensitive pressure-relief valve or the bionic tail fin with the speed-sensitive pressure-relief valve, a swimmer can effectively reduce fatigue feeling generated during long-distance and long-time continuous tour through variable-speed tour.

4. The speed-sensitive pressure-relief backflow valve has the advantages of simple structure, reliability in operation and obvious automatic rigidity changing characteristic along with speed, and longitudinal bending rigidity can be preset more conveniently.

5. The liquid storage cavity or the gas storage cavity filled with the non-Newtonian fluid or DEFLEXON damping material also has the advantages of simple structure, reliable operation and obvious automatic rigidity changing characteristic along with speed.

6. The flipper or the bionic tail fin comprises the speed-sensitive pressure-relief valve and a liquid storage cavity or a gas storage cavity filled with non-Newtonian fluid or DEFLEXON damping material, has the advantages of simple structure and reliable work, and has more obvious automatic rigidity changing characteristic along with the speed.

7. The invention has the advantages of light structure, reliable work, simple corresponding manufacturing process and low cost, and is convenient for large-scale production and popularization and use.

Drawings

Fig. 1 is a schematic view of the outline structure of the speed sensitive pressure relief valve of the present invention.

FIG. 2 is a schematic diagram of the speed sensitive pressure relief valve of the present invention sectioned along the longitudinal axis.

FIG. 3 is an exploded view of the component structure of the speed sensitive pressure relief valve of the present invention after it has exploded along the longitudinal axis.

FIG. 4 is a schematic view of the structure of the double flipper with speed sensitive pressure relief valve on both sides.

Fig. 5 is a schematic view showing the structure of a single fin with non-newtonian fluid filled in a reservoir according to the present invention.

In the figure: 1. a speed sensitive pressure relief valve; 101. a cylinder barrel; 102. a piston; 103. a valve core; 104. a valve core support; 105. a restoring elastic element; 106. an energy storage cavity; 107. a force-regulating elastic element; 108. force adjusting screws; 109. an O-shaped sealing ring; 2. a fin; 201. a web plate; 202. a longitudinal keel; 203. and (6) docking interfaces.

Wherein belong to the pneumatic cylinder have: 101. a cylinder barrel; 102. a piston; 109. an O-shaped sealing ring.

Among them belong to the check valve: 103. a valve core; 104. a valve core support; 105. the elastic element is reset.

Among them belong to the energy storage subassembly have: 106. an energy storage cavity; 107. a force-regulating elastic element; 108. force adjusting screw.

Detailed Description

The following describes an embodiment of the present invention at with reference to the drawings:

as shown in fig. 1, the outline structure of the speed sensitive pressure relief valve 1 of the present invention is shown.

The speed sensitive pressure relief valve 1 mainly comprises a hydraulic cylinder, a one-way valve and an energy storage assembly.

As shown in fig. 2, the speed sensitive pressure relief valve 1 of the present invention is shown in a structural configuration after being cut along a longitudinal axis.

The speed sensitive pressure relief valve 1 mainly comprises a hydraulic cylinder, a one-way valve and an energy storage assembly. The hydraulic cylinder mainly comprises a cylinder barrel 101, a piston 102 and an O-shaped sealing ring 109; the one-way valve mainly comprises a valve core 103, a valve core bracket 104 and a reset elastic element 105; the energy storage assembly mainly comprises an energy storage cavity 106, a force adjusting elastic element 107 and a force adjusting screw 108.

The housing of the energy storage chamber 106 and the cylinder 101 are body type structures, namely, parts.

As shown in fig. 3, the speed sensitive pressure relief valve 1 of the present invention is shown exploded along the longitudinal axis after the explosion of the constituent structure.

The speed sensitive pressure relief valve 1 mainly comprises a hydraulic cylinder, a one-way valve and an energy storage assembly. The hydraulic cylinder mainly comprises a cylinder barrel 101, a piston 102 and an O-shaped sealing ring 109; the one-way valve mainly comprises a valve core 103, a valve core bracket 104 and a reset elastic element 105; the energy storage assembly mainly comprises an energy storage cavity 106, a force adjusting elastic element 107 and a force adjusting screw 108.

The cylinder 101 and the housing of the energy storage chamber 106 in the figure are -body type structures, that is, the cylinder 101 is also the housing of the energy storage chamber 106.

As shown in fig. 4, the invention has the composition structure display of double-foot single web with the speed sensitive pressure relief valve 1 on the left and right sides.

The double-foot single web mainly comprises a web plate 201, a left longitudinal keel 202, a right longitudinal keel 202 and a butt joint interface 203.

As shown in fig. 5, the composition of the double-footed single web filled with non-newtonian fluid in the reservoir chamber of the present invention is shown.

The double-foot single web mainly comprises a web plate 201 and a left longitudinal keel and a right longitudinal keel 202.

The remaining part of the web plate 201 except the part for wrapping the feet is left with the thickness of the wall thickness, and then the solid is hollowed to form a wedge-shaped cavity which is communicated with the taper pipes in the left longitudinal keel 202 and the right longitudinal keel 202 to jointly form the liquid storage cavity. The liquid storage cavity is filled with non-Newtonian fluid. The big end of the taper pipe is provided with a plugging cover for plugging.

The specific embodiment of the invention is as follows:

example the velocity sensitive pressure relief valve 1 of the present invention is shown in figure 2.

The speed-sensitive pressure relief valve 1 mainly comprises a hydraulic cylinder, a one-way valve and an energy storage assembly, wherein the hydraulic cylinder mainly comprises a cylinder barrel 101, a piston 102 and an O-shaped sealing ring 109, the one-way valve mainly comprises a valve core 103, a valve core support 104 and a reset elastic element 105, the energy storage assembly mainly comprises an energy storage cavity 106, a force adjusting elastic element 107 and a force adjusting screw 108, and a shell of the energy storage cavity 106 and the cylinder barrel 101 in the figure are of an body type structure, namely, are the same parts.

The cylinder 101 of the hydraulic cylinder is filled with damping fluid, which is usually hydraulic oil or brake oil.

The speed sensitive pressure relief valve 1 has the advantages that the damping effect is more obvious along with the higher flow rate of damping liquid passing through a damping hole on the valve core 103, the force adjusting screw 108 at the tail end of the energy storage cavity compresses gas in the energy storage cavity 106 and the positive back pressure generated by the force adjusting elastic element 107, the pressure difference between the inner side and the outer side of the valve core 103 is increased, the pressure in the liquid storage cavity on the outer side of the valve core 103 is higher than the pressure in the cylinder barrel 101 of the hydraulic cylinder, and the speed sensitive pressure relief valve 1 enables the liquid storage cavity to have the characteristic of automatically changing the rigidity along with the speed.

Example two: as shown in fig. 4, the present invention has a double flipper with a speed sensitive pressure relief valve 1 on both left and right sides.

The double-foot single web mainly comprises a web plate 201, a left longitudinal keel 202, a right longitudinal keel 202 and a butt joint interface 203.

In this embodiment, the insides of the left and right longitudinal keels 202 are both hollow taper pipes, the large ends of the taper pipes are both columnar butt joints 203, and are respectively connected with speed-sensitive pressure-relief valve 1. after the remaining parts of the web plate 201 except the parts for wrapping the feet are hollowed out to have the thickness of the wall thickness, the solid is hollowed out to form a wedge-shaped cavity, and the wedge-shaped cavity is communicated with the taper pipes in the left and right longitudinal keels 202 to jointly form the liquid storage cavity.

Damping fluid is filled in the liquid storage cavity and the cylinder barrel 101 of the hydraulic cylinder, and the damping fluid is usually hydraulic oil or brake oil.

The deeper the force adjusting screw 108 is screwed in, the greater the compression force of the damping fluid in the cylinder 101 along the longitudinal axis direction of the cylinder 101, the greater the stored energy in the energy storage chamber 106, the correspondingly higher the pressure in the fluid storage chamber, the greater the initial longitudinal bending stiffness of the flipper 2 with the speed sensitive pressure relief valve 1, and conversely, the smaller the initial longitudinal bending stiffness of the flipper 2 with the speed sensitive pressure relief valve 1, the preset longitudinal bending stiffness being the initial longitudinal bending stiffness.

The swimmer lies on the water, when the swimmer swings the flipper 2 with the speed sensitive pressure relief valve 1, the shape of the flipper 201 and the longitudinal keel 202 changes in the process of bending up and down, the volume of the liquid storage cavity correspondingly changes, the pressure rises, in the middle of leg swinging actions, damping liquid in the liquid storage cavity is forced to flow through a damping hole of a valve core 103 of the one-way valve under the action of pressure, when the leg swinging action is finished and starts to swing back, the pressure of the damping liquid in the liquid storage cavity is reduced to the lowest value, due to the fact that a force adjusting screw 108 at the tail end of an energy storage cavity 106 presses gas in the energy storage cavity 106 and a positive back pressure generated by a force adjusting elastic element 107, a valve core 103 of the one-way valve is opened, the redundant damping liquid in the energy storage cavity 106 is instantly squeezed into the cavity, the pressures on the inner side and the outer side of the valve core 103 are balanced, the valve core 103 is reset under the action of an elastic force of a reset elastic element 105, the valve core 103 is enabled to reset under the action of the effect that the inner side and outer side of the valve core 103 are enabled to be higher, the frequency of the swimmer, the swimmer keeps the higher the frequency or the speed of the swimmer with the higher the frequency of the swimmer, the lower speed sensitive pressure of the swimmer 201 and the pressure sensitive pressure relief valve 2, the swimmer 201 still has the lower speed sensitive pressure relief valve 2, the lower speed sensitive pressure relief valve 2, the lower speed, the lower than the lower speed sensitive pressure of the swimmer, the lower speed sensitive pressure of the swimmer, the swimmer 201, the lower speed sensitive pressure relief valve 2, the lower speed sensitive pressure of the swimmer 1, the lower speed sensitive pressure relief valve 2, the swimmer 1, the lower speed sensitive pressure of.

The swimmer can beat water at a high speed and swim rapidly at a high frequency and can beat water at a low speed and swim slowly at a low frequency, the longitudinal bending rigidity of the flipper 2 with the speed-sensitive pressure-relief backflow valve 1 changes along with the change of the swimming speed or the change of the leg swinging frequency or the leg swinging speed of the swimmer, and the swimmer can effectively improve the proportion of useful work no matter what frequency the swimmer beats water, improve the advancing efficiency and the swimming speed of swimming and diving to the maximum extent and save physical strength, fully develop the advancing potential of the swimmer in the water, and finally achieve the purpose of long-time, long-distance and continuous high-speed tour; the swimmer can effectively reduce the fatigue feeling generated when the swimmer continuously tours for a long distance and a long time through variable-speed tour.

Example three: as shown in fig. 5, the reservoir chamber of the present invention is filled with a single web of both feet filled with a non-Newtonian fluid.

The double-foot single web mainly comprises a web plate 201 and a left longitudinal keel and a right longitudinal keel 202.

In this embodiment, the remaining part of the web plate 201 except the part covering the feet is hollowed to form a wedge-shaped cavity after the thickness of the wall is left, and the wedge-shaped cavity is communicated with the taper pipes in the left and right longitudinal keels 202 to jointly form the liquid storage cavity. The liquid storage cavity is filled with non-Newtonian fluid. The big end of the taper pipe is provided with a plugging cover for plugging.

The non-newtonian fluid is a speed sensitive material that hardens as the reservoir is flexed at an increased rate, thereby imparting the fin 2 with a self-stiffening characteristic with speed.

When the swimmer swings the flipper 2, the liquid storage cavity filled with the non-Newtonian fluid is squeezed, bent and sheared in the process of bending up and down, the volume is changed, the non-Newtonian fluid in the liquid storage cavity is squeezed, bent and sheared, the higher the frequency or speed of swinging the legs of the swimmer is, the higher the frequency or speed of squeezing, bending and shearing the non-Newtonian fluid is, the higher the pressure in the liquid storage cavity is correspondingly increased, the higher the longitudinal bending rigidity of the liquid storage cavity is, the obvious automatic rigidity changing characteristic along with the speed is obvious, so that the swimming speed is improved, and the higher propelling efficiency is still kept at the high swimming speed; conversely, the lower the swimmer's frequency or rate of swing, the lower the longitudinal bending stiffness of the reservoir, thereby reducing the swim speed and still maintaining a higher propulsion efficiency at ground speed.

The above-mentioned embodiments are only for convenience of illustration and are not intended to limit the invention in any way, and those skilled in the art will be able to make modifications and equivalents of the disclosed embodiments without departing from the technical scope of the invention.

Claims (6)

1. The speed-sensitive pressure-relief valve (1) comprises a hydraulic cylinder, a one-way valve and an energy storage assembly, and is characterized in that the hydraulic cylinder is located in the middle, the front end of the hydraulic cylinder is connected with the one-way valve, the rear end of the hydraulic cylinder is connected with the energy storage assembly, the hydraulic cylinder, the one-way valve and the energy storage assembly share a common longitudinal axis, and the one-way valve can only be opened in the oil outlet direction of the hydraulic cylinder.
2. 2. The speed-sensitive pressure relief valve (1) and the application thereof with the characteristic of automatic rigidity change with speed according to claim 1 are characterized in that the hydraulic cylinder comprises a cylinder barrel (101) and a piston (102), the inner diameter of the cylinder barrel (101) and the outer diameter of the piston (102) are mutually matched surfaces, the check valve comprises a valve core (103), a valve core bracket (104) and a return elastic element (105), the energy storage assembly comprises an energy storage cavity (106), a force adjustment elastic element (107) and a force adjustment screw (108), the cylinder barrel (101) and the valve core bracket (104) are mutually butted into a body in a coaxial manner, so that the hydraulic cylinder and the check valve are connected into a body, the return elastic element (105) is positioned between the valve core bracket (104) and the valve core (103) and is in a coaxial manner with the valve core (103) and the valve core bracket (104), the abutting surface of the valve core (103) and the abutting surface of the cylinder barrel (101) are matched and abutted against each other to form a seal, at least 34 throttling holes longitudinally penetrating through the valve core (103) are arranged on the abutting surface of the valve core (103) or on the longitudinal axis, the longitudinal axis of the valve core (103) and the cylinder barrel (106) and the energy storage cavity (106) are mutually matched with the elastic element (106) and the energy storage cavity (106) and the energy adjustment screw (106), so that the energy storage assembly is connected with the energy storage cavity () and the energy storage assembly (106), so that the energy storage assembly (106) and the energy storage assembly (.
3. 3. The speed-sensitive pressure-relief valve (1) and the use thereof with the characteristic of automatic stiffness change with speed according to claim 2, characterized in that the speed-sensitive pressure-relief valve (1) is in abutment with a liquid storage or gas storage chamber provided in a fin plate (201) of a fin (2) and in a hollow cone of a longitudinal fin (202), or the speed-sensitive valve (1) is in abutment with a liquid storage or gas storage chamber provided in a fin plate of a bionic fin and in a hollow cone of a longitudinal fin (202), the fin (2) comprises a fin plate (201) and a longitudinal fin (202) located on both longitudinal sides or in a middle area of the fin plate (201), the fin comprises a fin plate and a longitudinal fin (202) located on both longitudinal sides or in a middle area of the fin plate, at least 32 hollow cones are provided inside the fin plate (202) of the fin (2) or in the longitudinal fin (202) of the bionic fin (2) and are provided with a liquid storage or gas storage chamber, the fin plate (201) or the fin plate (201) is in a single-speed-sensitive pressure-relief valve (201), and the fin plate (201) or the bionic fin (202) is of a bionic fin (201) and/or a bionic fin assembly of a bionic fin (2) which is in which at least one-speed-sensitive pressure-relief valve (1) and/or gas storage chamber (2) and which is in which at least one-sensitive pressure-sensitive fin (2) and which, and which is in which, and which at least one-sensitive pressure-sensitive fin (2) is in which the bionic fin (2) is in which, and which is in which the bionic fin (2) is in which, when the bionic fin (2) is in which the bionic fin (2) a bionic fin (201, the bionic fin.
4. 4. The speed-sensitive pressure relief valve (1) and its application of auto-stiffness characteristic as per speed according to claim 3, characterized in that the web (201), fin or longitudinal keel (202) hollow cone is filled with non-Newtonian fluid or DEFLXION shock absorbing material in the reservoir or reservoir, the web (201), fin reservoir or cone inside, there is a diaphragm inside, the diaphragm inside is non-Newtonian fluid or DEFLXION shock absorbing material, the diaphragm outside is filled with liquid or gas and connected to the speed-sensitive pressure relief valve (1), the cone has a curved or straight longitudinal axis, the cone cross section perpendicular to the cone longitudinal axis is non-circular or round, and the perimeter of each cone inner cavity cross section gradually decreases from end of the swimmer's direction of travel to end behind the swimmer's direction of travel.
5. 5. The speed-sensitive pressure-relief valve (1) and the application thereof with the characteristic of automatic rigidity change with speed according to claim 4, characterized in that the reservoir and reservoir are filled with non-Newtonian fluid or DEFLEXIN shock-absorbing material, and a plugging cover is arranged at the outlet of the conical tube big end, the fin plate (201) or the reservoir or reservoir in the fin plate which is communicated with the speed-sensitive pressure-relief valve (1), so as to plug the non-Newtonian fluid or DEFLEXON shock-absorbing material in the hollow conical tube in the longitudinal keel (202), the reservoir or reservoir in the fin plate (201) or fin plate.
6. 6. The speed-sensitive pressure relief valve (1) and its application of auto-rigidity change with speed according to claim 3, 4 or 5, wherein the upper and lower regions of the web plate (201), fin or longitudinal keel (202) parallel to the upper and lower surfaces of the web plate (201), fin and inner wall of the liquid or air storage chamber are provided with upper and lower clips respectively for sandwiching the liquid or air storage chamber.

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