CN213964989U - Pedal rotating vane body-building device - Google Patents

Abstract

A pedal rotating blade body builder relates to the technical field of sports body building equipment, comprising: the lower rotating vane device, the guide rod, the rocker, the main connecting rod, the left push-pull rod, the right push-pull rod and the bracket; the lower rotating vane device comprises a lower sliding block, a lower bearing and a plurality of lower vanes which are uniformly distributed around the lower bearing, and the lower rotating vane device can flexibly move up and down along the guide rod; an operator pedals the pedal to pedal back and forth, and pulls the rocker to rock so as to drive the lower blade rotating device to reciprocate up and down, so that the lower blade rotates around the guide rod. The invention has novel structure and multiple functions. The fitness equipment is an instrument for converting reciprocating motion into circular rotation, can be used for sports and entertainment, fitness, power generation and the like, also has the function of physical fitness test, has strong entertainment and strong experience, can attract masses to participate in fitness exercise compared with the traditional fitness equipment, and has profound influence on improvement of physical quality of the whole people.

Description

Pedal rotating vane body-building device

Technical Field

A pedal rotating vane body builder relates to the technical field of sports entertainment body building equipment, in particular to a pedal rotating vane body builder.

Background

The traditional physical fitness equipment can exercise the body of people, strengthen the physique, enrich the life of people and play a great role in physical and mental health of people. However, most of the traditional physical fitness equipment has stiff structure, for example, the force training apparatus uses a heavy object or a spring as a force application part, the experience sense of the exercise process is not strong, the pleasure sense is lacked, and many exercises are performed in the pain, and the exercise can be continued only by strong willpower. Most fitness equipment belongs to professional equipment, has a relatively complex structure, is generally used in indoor environments such as a gymnasium and a user home, and has high maintenance and repair cost. There are also some simple physical fitness equipments, which are found in leisure places such as parks, greenbelts, and residential quarters, and the structure is relatively simple, the function is weak, and the utilization rate is low because there is no experience. There are currently fewer machines that combine the functions of physical entertainment and fitness.

In view of the above, it is apparent that there is a need for improvement and development in the prior art.

Disclosure of Invention

The invention aims to overcome the defects of the prior art, supplement and enrich the 'family' of sports fitness equipment, and provide a fitness device which has a simple structure, is convenient to operate, integrates the functions of interest, entertainment, sports, fitness and the like, and is named as a pedal rotating-blade fitness device.

In order to achieve the purpose, the invention adopts the technical scheme that:

a pedal-leaf exerciser, comprising: the lower rotating vane device, the guide rod, the rocker, the main connecting rod, the left push-pull rod, the right push-pull rod, the bracket, the left pedal, the right pedal, the left handle, the right handle and the foot rest;

the lower rotating vane device comprises a lower sliding block, a lower bearing and a plurality of lower vanes which are uniformly distributed around the lower bearing, wherein the root of each lower vane is connected with the outer ring of the lower bearing, the lower bearing is sleeved on the periphery of the lower sliding block, the lower sliding block is connected with the inner ring of the lower bearing, and due to the existence of the lower bearing, the lower vanes can flexibly rotate around the lower sliding block, and the rotating plane of the lower vanes is in a horizontal position;

all the lower blades have the same structure, the sections of the lower blades are airfoil-shaped, and at least one of the upper surface and the lower surface of each lower blade is convex; the front edges of all the lower blades are arranged towards the same direction; the minimum radius of the arc of the front edge of the lower blade is more than 10 times of the thickness of the thinnest part of the rear edge of the lower blade; the included angle between the chord line of the lower blade and the rotating plane of the lower blade is the installation angle of the lower blade; when the front edge of the lower blade is higher than the rear edge of the lower blade, the mounting angle of the lower blade is defined as a positive value; when the front edge of the lower blade is lower than the rear edge of the lower blade, the mounting angle of the lower blade is defined as a negative value; the installation angle of the lower blade is between-1 degrees and 2 degrees; the distance between the maximum thickness position of the airfoil of the lower blade and the front edge of the lower blade is 20-40% of the chord length of the lower blade;

the guide rod is vertically arranged, the lower sliding block is matched with the guide rod, the lower rotating vane device is movably connected with the guide rod through the lower sliding block, and the lower rotating vane device can flexibly move up and down along the guide rod;

the rocker is arranged at the lower part of the guide rod through a hinge joint, the rocker can flexibly swing in a transverse vertical plane, the rocker is horizontally arranged at the left and the right in a natural state, and the connection part of the rocker and the guide rod is arranged at the central position of the rocker;

the lower rotating vane device is movably connected with a rocker through a main connecting rod, the upper end of the main connecting rod is connected with the lower sliding block through a hinge, the lower end of the main connecting rod is connected with the rocker through a hinge, and the lower rotating vane device can flexibly move up and down along a guide rod when the rocker is shaken;

the left pedal plate is arranged at the lower end of the left push-pull rod, and the upper end of the left push-pull rod is movably connected with the left end of the rocker through a left hinge; the right pedal is arranged at the lower end of the right push-pull rod, and the upper end of the right push-pull rod is movably connected with the right end of the rocker through a right hinge;

the upper end of the bracket is fixedly connected with the lower end of the guide rod, the middle part of the bracket is provided with a handle, and the handle comprises a left handle and a right handle; the foot rest is arranged at the lower end of the bracket, and the whole pedal rotating-blade body-building device is supported on the ground by the foot rest;

an operator holds the left handle by the left hand, holds the right handle by the right hand, pedals the left pedal by the left foot, pedals the right pedal by the right foot, pedals back and forth by the left and the right, and pulls the rocker to rock so as to drive the lower rotating blade device to reciprocate up and down.

Furthermore, the pedal rotating vane body builder of the invention also comprises an upper rotating vane device and a swinging rod, the structure of the upper rotating vane device is basically the same as that of the lower rotating vane device, the upper rotating vane device comprises an upper slide block, an upper bearing and a plurality of upper vanes which are uniformly distributed around the upper bearing, the upper rotating vane device and the swinging rod are arranged above the lower rotating vane device, the center of the swinging rod is arranged on a guide rod through a hinge joint, one end of the swinging rod is movably connected with the lower rotating vane device through a lower connecting rod, the other end of the swinging rod is movably connected with the upper rotating vane device through an upper connecting rod, the upper end of the upper connecting rod is hinged with the upper slide block, the lower end of the upper connecting rod is hinged with one end of the swinging rod, the upper end of the lower connecting rod is hinged with the other end of the swinging rod, and the lower end of the lower connecting rod is hinged with the lower slide block. The upper sliding block is matched with the guide rod, and the upper rotating vane device can flexibly move up and down along the guide rod. When the lower rotating blade device is pushed upwards, the lower connecting rod, the swing rod and the upper connecting rod can drive the upper rotating blade device to move downwards; when the lower rotating blade device is pulled downwards, the lower connecting rod, the swing rod and the upper connecting rod can drive the upper rotating blade device to move upwards.

Furthermore, a rotating speed measuring device is installed on the lower blade rotating device, a display screen is arranged on the support, the rotating speed measuring device is in telecommunication connection with the display screen, and the display screen can display the instantaneous rotating speed of the lower blade rotating device and the highest rotating speed of single movement of the lower blade rotating device.

Furthermore, a heart rate and blood pressure detection device is arranged at the left handle or the right handle, and is in telecommunication connection with a display screen, and heart rate and blood pressure parameters of an operator are displayed through the display screen.

Further, the display screen can also display the duration of a single movement of the operator.

Furthermore, the seat is arranged on the bracket, so that an operator can conveniently rest or sit and step on the seat.

Furthermore, the wing profiles of all the blades adopt a biconvex type, namely the upper surfaces of the blades protrude upwards, and the lower surfaces of the blades protrude downwards; the aspect ratio of a single blade is more than 3 and less than 12; the single leaf has the length of 0.3-3 m; the number of the upper blades is the same as that of the lower blades, and the number of the upper blades and the number of the lower blades are between 2 and 6.

Preferably, the airfoil profile of all the blades adopts a symmetrical biconvex airfoil profile, such as an NACA0016 or NACA0012 airfoil profile; the setting angles of all the blades are the same and are between 0 degrees and 1 degrees.

Furthermore, an intelligent electronic lock is installed at the joint of the rocker and the guide rod, the intelligent electronic lock can lock the rocker, and the rocker cannot swing when the intelligent electronic lock is not opened. The device is convenient to be used as a charge sharing device.

Furthermore, the intelligent sound box is arranged on the support, and the intelligent sound box can at least directly play or insert into an earphone to listen to one of the audios: blade rotation speed prompt tone, blade single-use duration prompt tone, and body-building music.

Furthermore, a solar power generation film is disposed on the upper surface of all the blades, and the generated electricity is transmitted to a battery of the display screen for charging through a conductive ring and an electric wire installed on the guide bar.

Furthermore, the sliding block adopts a linear bearing, and the guide rod adopts an optical axis matched with the linear bearing.

Further, a micro generator is installed at the lower bearing and electrically connected with a battery installed on the bracket; the lower blade is driven by manpower indirectly to rotate to drive the micro generator to generate electricity, and the generated electricity is processed and then charged into the battery.

Furthermore, an LED colored lamp is arranged at the upper end of the lower blade.

Furthermore, a USB interface is arranged on the display screen, and the display screen can charge a mobile phone and a flashlight.

The basic working principle of the pedal rotating vane body builder of the invention is as follows: the operator tramples left foot board and right foot board drive rocker, make the blade up-and-down motion, the upper surface of blade and the lower surface of blade are windward in turn, because the upper surface of blade and the lower surface of blade have at least one side to be convex, and the maximum thickness position of the airfoil of blade is close to the leading edge of blade and keeps away from the trailing edge of blade, two air currents that the size is different can be divided into to the oncoming flow effect when the convex one side of airfoil, little air current moves to the leading edge direction of blade, big air current moves to the trailing edge direction of blade, so, can form the momentum difference between the trailing edge of the leading edge of blade and blade, the air current can push the blade and move to the leading edge direction of blade, then a plurality of blades are rotatory around the guide arm together. Within a certain rotating speed range, when the amplitude of the up-down trampling is fixed, the faster the frequency of the up-down trampling is, the faster the blade rotates; the frequency of the up-down stepping is fixed, and the larger the amplitude of the up-down stepping is, the faster the blade rotates. The resistance that the blade moved ahead can increase along with the increase of rotational speed, but when the blade rotated the back, along with the quick increase of the rotatory speed of blade, the reynolds number of blade can increase, and then the acceleration rate of the resistance that the blade moved ahead can slow down, if operator's strength is enough, the blade can rotate at a high speed. Therefore, the operator has pleasant experience and achievement feeling, feels comfortable, can play the roles of entertainment and fitness at the same time, enables the operator to exercise in pleasure, and is beneficial to the physical and mental health of the operator. If the frequency or amplitude of the stepping decreases, the rotational speed of the blade slows down. The force changes in the whole treading process, and is not stiff like the traditional fitness equipment. Of course, the movement process of the blades is a very complicated process, and the multiple movements of forward movement, upward movement and downward movement are combined together and are influenced by the local environment such as wind speed and wind direction. Here a simple analysis is made using classical fluid mechanics. The inventor of the scheme proves the motion process through a plurality of physical prototypes: rapid stepping up and down causes the blade to rotate rapidly in the direction of the leading edge and the operator feels pleasure.

The invention has the beneficial effects that: novel structure, the function is various. The operator exchanges tramples left pedal and right pedal from top to bottom and makes the blade up-and-down motion, makes the blade rotate under the effect of relative air current, is one kind and converts reciprocating motion into circumference pivoted apparatus, can give sports entertainment, body-building, electricity generation etc. also has the function of physical stamina test, and recreational strong, experience is felt strong, compares with traditional body-building apparatus, more can attract masses to participate in the body-building and take exercise, will produce the influence of profound to improving the whole people's physical quality.

Drawings

FIG. 1 is a schematic block diagram of one embodiment of the present invention;

FIG. 2 is a schematic structural diagram of another embodiment of the present invention;

FIG. 3 is an airfoil schematic view of the lower blade of the present invention;

FIG. 4 is a schematic view of the air flow analysis of the present invention with the lower blade moving upward;

FIG. 5 is a schematic representation of the leading and trailing edge parameter indications of the lower blade of the present invention.

In the figure:

1-lower rotating vane device, 11-lower bearing, 12-lower vane, 121-front edge of lower vane, 122-rear edge of lower vane, 123-upper surface of lower vane, 124-lower surface of lower vane, 13-lower slide block; 2-upper rotating vane device, 21-upper bearing, 22-upper vane, 23-upper sliding block; 3-oscillating bar, 31-upper connecting rod, 32-lower connecting rod; 4-a guide rod; 5-a rocker; 6-main link; 7-left push-pull rod, 71-left hinge joint, 73-left pedal and 74-left handle; 8-right push-pull rod, 81-right hinge, 83-right pedal and 84-right handle; 9-a scaffold; 14-a foot rest; 15-a seat; 16-a display screen;

a-a chord line of the lower blade, B-a rotating plane of the lower blade, C-an installation angle of the lower blade, D-an upward direction indication of the lower blade, E-a streamline indication of an upper airflow when the lower blade moves upward, G-a forward direction indication of the lower blade, R-a minimum radius indication of a front edge arc of the lower blade, and h-a thickness indication of a thinnest part of a rear edge of the lower blade.

Detailed Description

The technical solution of the present invention is specifically described below with reference to the accompanying drawings and examples.

A pedal-leaf exerciser, comprising: the lower rotary vane machine 1, the guide rod 4, the rocker 5, the main connecting rod 6, the left push-pull rod 7, the right push-pull rod 8, the bracket 9, the left pedal 73, the right pedal 83, the left handle 74, the right handle 84 and the foot rest 14;

the lower rotating vane device 1 comprises a lower sliding block 13, a lower bearing 11 and a plurality of lower vanes 12 which are uniformly distributed around the lower bearing 11, wherein the root of the lower vane 12 is connected with the outer ring of the lower bearing 11, the lower bearing 11 is sleeved on the periphery of the lower sliding block 13, the lower sliding block 13 is connected with the inner ring of the lower bearing 11, the lower vane 12 can flexibly rotate around the lower sliding block 13 due to the existence of the lower bearing 11, and the rotating plane of the lower vane 12 is in a horizontal position;

all the lower blades 12 have the same structure, the cross sections of the lower blades 12 are airfoil-shaped, and at least one of the upper surface and the lower surface of each lower blade 12 is convex; the leading edges 121 of all the lower blades are installed in the same direction; the minimum radius R of the arc shape of the front edge of the lower blade is more than 10 times of the thickness h of the thinnest part of the rear edge of the lower blade; the included angle between the chord line A of the lower blade and the rotating plane B of the lower blade is the installation angle C of the lower blade; when the leading edge 121 of the lower blade is higher than the trailing edge 122 of the lower blade, the installation angle C of the lower blade is defined as a positive value; the setting angle C of the lower blade is defined as a negative value when the leading edge 121 of the lower blade is lower than the trailing edge 122 of the lower blade; the installation angle C of the lower blade is between-1 degrees and 2 degrees; the maximum thickness position of the airfoil of the lower blade 12 is at a distance of 20% to 40% of the chord length of the lower blade 12 from the leading edge of the lower blade 12;

the guide rod 4 is vertically arranged, the lower sliding block 13 is matched with the guide rod 4, the lower rotary vane device 1 is movably connected with the guide rod 4 through the lower sliding block 13, and the lower rotary vane device 1 can flexibly move up and down along the guide rod 4;

the rocker 5 is arranged at the lower part of the guide rod 4 through a hinge joint, the rocker 5 can flexibly swing in a transverse vertical plane, the rocker 5 is horizontally arranged left and right in a natural state, and the connection part of the rocker 5 and the guide rod 4 is positioned at the central position of the rocker 5;

the lower rotating vane device 1 is movably connected with a rocker 5 through a main connecting rod 6, the upper end of the main connecting rod 6 is connected with a lower sliding block 13 through a hinge joint, the lower end of the main connecting rod 6 is connected with the rocker 5 through a hinge joint, and the lower rotating vane device 1 can flexibly move up and down along a guide rod 4 when the rocker 5 is rocked;

the left pedal plate 73 is arranged at the lower end of the left push-pull rod 7, and the upper end of the left push-pull rod 7 is movably connected with the left end of the rocker 5 through a left hinge joint 71; the right pedal 83 is arranged at the lower end of the right push-pull rod 8, and the upper end of the right push-pull rod 8 is movably connected with the right end of the rocker 5 through a right hinge 81;

the upper end of the bracket 9 is fixedly connected with the lower end of the guide rod 4, and the middle part of the bracket 9 is provided with a handle which comprises a left handle 74 and a right handle 84; the foot rest 14 is arranged at the lower end of the bracket 9, and the whole pedal rotating-blade body-building device is supported on the ground by the foot rest 14;

the operator holds the left handle 74 with the left hand, holds the right handle 84 with the right hand, steps on the left foot pedal 73 with the left foot, steps on the right foot pedal 83 with the right foot, steps on the left and right back and forth, pulls the rocker 5 to rock so as to drive the lower rotary vane device 1 to reciprocate up and down, and the lower vane 12 rotates around the guide rod 4 due to the special structure of the lower rotary vane device 1.

Furthermore, another embodiment of the pedal rotary vane exercise machine further comprises an upper rotary vane machine 2 and a swing rod 3, the upper rotary vane machine 2 comprises an upper slide block 23, an upper bearing 21 and a plurality of upper vanes 22 uniformly distributed around the upper bearing 21, the structure of the upper rotary vane machine 2 is basically the same as that of the lower rotary vane machine 1, the upper rotary vane machine 2 and the swing rod 3 are arranged above the lower rotary vane machine 1, the center of the swing rod 3 is mounted on the guide rod 4 through a hinge, one end of the swing rod 3 is movably connected with the lower rotary vane machine 1 through a lower connecting rod 32, the other end of the swing rod 3 is movably connected with the upper rotary vane machine 2 through an upper connecting rod 31, the upper end of the upper connecting rod 31 is hinged with the upper slide block 23, the lower end of the upper connecting rod 31 is hinged with one end of the swing rod 3, the upper end of the lower connecting rod 32 is hinged with the other end of the swing rod 3, and the lower end of the lower connecting rod 32 is hinged with the lower slide block 13. The upper sliding block 23 is matched with the guide rod 4, and the upper rotating vane device 2 can flexibly move up and down along the guide rod 4. When the lower rotating vane device 1 is pushed upwards, the lower connecting rod 32, the swing rod 3 and the upper connecting rod 31 drive the upper rotating vane device 2 to move downwards; when the lower rotating vane device 1 is pulled downwards, the lower connecting rod 32, the swing rod 3 and the upper connecting rod 31 drive the upper rotating vane device 2 to move upwards.

Furthermore, a rotating speed measuring device is arranged on the lower rotary vane machine 1, a display screen 16 is arranged on the bracket 9, the rotating speed measuring device is in telecommunication connection with the display screen 16, and the display screen 16 can display the instantaneous rotating speed of the lower rotary vane machine 1 and the maximum rotating speed of the lower rotary vane machine 1 in single movement.

Further, either the left handle 74 or the right handle 84 is provided with a heart rate and blood pressure sensing device, which is in electrical communication with the display screen 16, and the display screen 16 is capable of displaying the heart rate and blood pressure parameters of the operator.

Still further, the display screen 16 can also display the duration of a single movement of the operator.

Furthermore, a seat 15 is provided on the support 9 to facilitate the resting or sitting pedaling of the operator.

Furthermore, the wing profiles of all the blades adopt a biconvex type, namely the upper surfaces of the blades protrude upwards, and the lower surfaces of the blades protrude downwards; the aspect ratio of a single blade is more than 3 and less than 10; the single leaf has the length of 0.3-3 m; the number of upper blades 22 is the same as the number of lower blades 12, and is between 2 and 6.

Preferably, the airfoil profile of all the blades adopts a symmetrical biconvex airfoil profile, such as an NACA0016 or NACA0012 airfoil profile; the setting angles of all the blades are the same and are between 0 degrees and 1 degrees.

Furthermore, an intelligent electronic lock is installed at the joint of the rocker 5 and the guide rod 4, the intelligent electronic lock can lock the rocker 5, and when the intelligent electronic lock is not opened, the rocker 5 cannot swing. The device is convenient to be used as a charge sharing device.

Further, the display screen 16 is provided with a smart speaker, which can play directly or listen to one of the audio by plugging in a headphone: blade rotation speed prompt tone, blade single-use duration prompt tone, and body-building music.

Further, a solar power generation film is disposed on the upper surface of all the blades, and the generated electricity is transmitted to a battery in the display screen 16 through a conductive ring and an electric wire installed on the guide bar 4 to be charged.

Furthermore, the slide block adopts a linear bearing, and the guide rod 4 adopts an optical axis matched with the linear bearing.

Further, a micro-generator is installed at the lower bearing 11, and the micro-generator is electrically connected with a battery installed on the bracket 9; the lower blade 12 is driven by manpower indirectly to rotate to drive the micro-generator to generate electricity, and the generated electricity is processed and then charged into a battery.

Furthermore, an LED colored lamp is arranged at the upper end of the lower blade 12, and the micro generator generates electricity for the LED colored lamp.

Furthermore, the display screen 16 is provided with a USB interface, which can be used for charging a mobile phone and a flashlight.

The basic working principle of the pedal rotating vane body builder of the invention is as follows: an operator steps on the left foot pedal 73 and the right foot pedal 83 to drive the rocker 5, so that the blade moves up and down, the upper surface of the blade and the lower surface of the blade face the wind alternately, at least one of the upper surface of the blade and the lower surface of the blade is convex, the maximum thickness position of the wing section of the blade is close to the front edge of the blade and far away from the rear edge of the blade, the oncoming flow is divided into two air flows with different sizes when acting on the convex surface of the wing section, the small air flow moves towards the front edge direction of the blade, and the large air flow moves towards the rear edge direction of the blade, so that a momentum difference is formed between the front edge of the blade and the rear edge of the blade, the air flow pushes the blade to move towards the front edge direction of the blade, and then the blades rotate around the guide rod 4 together. Within a certain rotating speed range, when the amplitude of the up-down trampling is fixed, the faster the frequency of the up-down trampling is, the faster the blade rotates; the frequency of the up-down stepping is fixed, and the larger the amplitude of the up-down stepping is, the faster the blade rotates. The resistance that the blade moved ahead can increase along with the increase of rotational speed, but when the blade rotated the back, along with the quick increase of the rotatory speed of blade, the reynolds number of blade can increase, and then the acceleration rate of the resistance that the blade moved ahead can slow down, if operator's strength is enough, the blade can rotate at a high speed. Therefore, the operator has pleasant experience and achievement feeling, feels comfortable, can play the roles of entertainment and fitness at the same time, enables the operator to exercise in pleasure, and is beneficial to the physical and mental health of the operator. If the frequency or amplitude of the stepping decreases, the rotational speed of the blade slows down. The force changes in the whole treading process, and is not stiff like the traditional fitness equipment. Of course, the movement process of the blades is a very complicated process, and the multiple movements of forward movement, upward movement and downward movement are combined together and are influenced by the local environment such as wind speed and wind direction. Here a simple analysis is made using classical fluid mechanics. The inventor of the scheme proves the motion process through a plurality of physical prototypes: rapid stepping up and down causes the blade to rotate rapidly in the direction of the leading edge and the operator feels pleasure.

The invention has the beneficial effects that: novel structure, the function is various, and the application scene is wide. The operator alternately steps on the left foot pedal 73 and the right foot pedal 83 up and down to enable the blades to move up and down, the blades move up and down, and the blades rotate under the action of relative air flow, so that the device is an instrument for converting reciprocating linear motion into circular rotation, and is strong in experience, entertainment and interestingness; is an aerobic exercise, can promote the blood circulation of an operator to be accelerated, can improve the resistance and enhance the immunity, and can better prevent diseases, particularly cardiovascular and cerebrovascular diseases, by frequent use. Can be used for sports and entertainment, body building, power generation, teaching and the like, and also has the function of physical fitness test. Can be used in gymnasiums, families and schools as a device for exercising body; the device can also be used as leisure and entertainment equipment in public places such as parks, amusement places, schools, particularly university campuses, bus stations, airport waiting halls, hotel lobbies, bank lobbies, automobile maintenance shops rest areas and the like; can also be used as rehabilitation equipment in hospitals; can also be used as a relaxing device which is arranged near an office area to relieve the working pressure when office staff take a rest. Compared with the traditional fitness equipment, the fitness equipment can attract the masses to participate in fitness exercise, and has profound influence on improving the physical quality of the whole people. Can enrich the life content of people and has positive effect for improving the life quality of people. Can be added with bricks and tiles to satisfy the demand of people for good life.

Claims (10)

1. A pedal rotating vane body builder is characterized in that: the method comprises the following steps: the device comprises a lower rotating vane device (1), a guide rod (4), a rocker (5), a main connecting rod (6), a left push-pull rod (7), a right push-pull rod (8), a bracket (9), a left pedal (73), a right pedal (83), a left handle (74), a right handle (84) and a foot rest (14);

the lower rotating vane device (1) comprises a lower sliding block (13), a lower bearing (11) and a plurality of lower vanes (12) which are uniformly distributed around the lower bearing (11), the lower bearing (11) is sleeved on the periphery of the lower sliding block (13), the lower vanes (12) can flexibly rotate around the lower sliding block (13), and the rotating plane of the lower vanes (12) is in a horizontal position;

the section of the lower blade (12) is airfoil-shaped, and at least one of the upper surface and the lower surface of the lower blade (12) is convex; the front edges (121) of all the lower blades are arranged towards the same direction; the minimum radius (R) of the arc shape of the front edge of the lower blade is more than 10 times of the thickness (h) of the thinnest part of the rear edge of the lower blade; the mounting angle (C) of the lower blade is between-1 DEG and 2 DEG; the distance between the maximum thickness position of the airfoil profile of the lower blade (12) and the front edge of the lower blade (12) is 20-40% of the chord length of the lower blade (12);

the guide rod (4) is vertically arranged, the lower sliding block (13) is matched with the guide rod (4), the lower vane rotating device (1) is movably connected with the guide rod (4) through the lower sliding block (13), and the lower vane rotating device (1) can flexibly move up and down along the guide rod (4);

the rocker (5) is arranged at the lower part of the guide rod (4) through a hinge joint, and the rocker (5) can flexibly swing in a transverse vertical plane;

the lower rotary vane device (1) is movably connected with a rocker (5) through a main connecting rod (6), and the lower rotary vane device (1) can flexibly move up and down along the guide rod (4) when the rocker (5) is rocked;

the left pedal plate (73) is arranged at the lower end of the left push-pull rod (7), and the upper end of the left push-pull rod (7) is movably connected with the left end of the rocker (5) through a left hinge joint (71); the right pedal (83) is arranged at the lower end of the right push-pull rod (8), and the upper end of the right push-pull rod (8) is movably connected with the right end of the rocker (5) through a right hinge (81);

the upper end of the bracket (9) is fixedly connected with the lower end of the guide rod (4), the left handle (74) and the right handle (84) are arranged in the middle of the bracket (9), and the foot rest (14) is arranged at the lower end of the bracket (9).

2. A pedal-operated rotary vane exercise machine according to claim 1, wherein: the structure of the upper rotating vane device (2) is basically the same as that of the lower rotating vane device (1), the upper rotating vane device (2) and the swing bar (3) are arranged above the lower rotating vane device (1), the swing bar (3) is arranged on a guide rod (4) through a hinge, one end of the swing bar (3) is movably connected with the lower rotating vane device (1) through a lower connecting rod (32), and the other end of the swing bar (3) is movably connected with the upper rotating vane device (2) through an upper connecting rod (31); the upper sliding block (23) is matched with the guide rod (4), and the upper rotating vane device (2) can flexibly move up and down along the guide rod (4).

3. A pedal-operated rotary vane exercise machine according to claim 1 or 2, wherein: install rotational speed measuring device on commentaries on classics leaf ware (1) down, set up display screen (16) on support (9), have telecommunications connection between rotational speed measuring device and display screen (16), display screen (16) can show at least: one of the instantaneous rotating speed of the lower rotating vane device (1), the highest rotating speed of the single movement of the lower rotating vane device (1) and the time length of the single movement of an operator.

4. A pedal-operated rotary vane exercise machine according to claim 1 or 2, wherein: a heart rate and blood pressure detection device is arranged at the left handle (74) or the right handle (84) and is used for detecting the heart rate and blood pressure parameters of the operator.

5. A pedal-operated rotary vane exercise machine according to claim 1 or 2, wherein: the bracket (9) is provided with a seat (15).

6. A pedal-operated rotary vane exercise machine according to claim 1 or 2, wherein: the wing profiles of all the blades adopt a biconvex type; the aspect ratio of a single blade is more than 3 and less than 10; the single leaf has the length of 0.3-3 m; the number of the upper blades (22) is the same as that of the lower blades (12), and the number of the upper blades and the number of the lower blades are between 2 and 6.

7. A pedal-operated rotary vane exercise machine according to claim 1 or 2, wherein: the wing profiles of all the blades adopt symmetrical biconvex wing profiles; the setting angles of all the blades are the same and are between 0 degrees and 1 degrees.

8. A pedal-operated rotary vane exercise machine according to claim 1 or 2, wherein: an intelligent electronic lock is arranged at the joint of the rocker (5) and the guide rod (4).

9. A pedal-operated rotary vane exercise machine according to claim 1 or 2, wherein: the intelligent sound box is provided with at least one of the following audios which can be directly played or listened to by inserting an earphone: the rotating speed prompt tone of the lower blade (12), the time length prompt tone of the single use of the lower blade (12) and the body-building music.

10. A pedal-operated rotary vane exercise machine according to claim 1 or 2, wherein: can generate electricity by adopting at least one of the two power generation modes: a micro generator is arranged at the lower bearing (11) for generating electricity; and a solar power generation film is arranged on the upper surface of the blade to generate power.

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