阅读说明：本技术 多功能飞舞器 (Multifunctional flying device ) 是由 王志成 王美航 肖凤兰 于 2021-02-28 设计创作，主要内容包括：多功能飞舞器,涉及体育运动器材和玩具技术领域,包括：转叶器和拉杆；转叶器包括转叶头和多个叶片；叶片的根部与转叶头连接；转叶头活装在拉杆的一端,叶片随着转叶头能绕拉杆灵活转动,叶片的转动平面与拉杆垂直；还包括防护装置,防护装置采用防护圈或者防护罩；所有叶片的截面是翼型的,叶片的两个表面至少有一面是凸形的；使用者推拉拉杆带动转叶器往复运动,使叶片绕拉杆旋转。本发明结构新颖,功能多样,可供体育娱乐、锻炼、教学、伞具和自拍杆使用,还可以在水中使用,适合老、中、青、少人群使用,娱乐性强,体验感强,与传统的体育器材和玩具风车相比,更能够吸引大众参与运动锻炼,对提高全民身体素质将产生深远的影响。(Multi-functional dancing ware relates to sports equipment and toy technical field, includes: a rotating blade device and a pull rod; the rotary vane device comprises a rotary vane head and a plurality of vanes; the root of the blade is connected with the rotating blade head; the rotating blade head is movably arranged at one end of the pull rod, the blade can flexibly rotate around the pull rod along with the rotating blade head, and the rotating plane of the blade is vertical to the pull rod; the device also comprises a protection device, wherein the protection device adopts a protection ring or a protection cover; the cross sections of all the blades are airfoil-shaped, and at least one surface of two surfaces of each blade is convex; the user pushes and pulls the pull rod to drive the rotating blade device to reciprocate, so that the blade rotates around the pull rod. The invention has novel structure and various functions, can be used for sports entertainment, exercise, teaching, umbrellas and selfie sticks, can be used in water, is suitable for old, middle, young and young people, has strong entertainment and experience, can attract the masses to participate in sports and exercise, and has profound influence on improving the physical quality of the whole people compared with the traditional sports equipment and toy windmill.)

1. Multi-functional dancing ware, its characterized in that: the method comprises the following steps: a rotating vane device (1) and a pull rod (2);

the rotary vane device (1) comprises a rotary vane head (11) and a plurality of vanes (12); the root of the blade (12) is connected with the rotating blade head (11); the rotating blade head (11) is movably arranged at one end of the pull rod (2), the blade (12) can flexibly rotate around the pull rod (2) along with the rotating blade head (11), and the rotating plane of the blade (12) is vertical to the pull rod (2);

the device also comprises a protection device, wherein the protection device adopts a protection ring (13) or a protection cover;

the cross section of all the blades (12) is airfoil-shaped, and at least one of the upper surface (123) of the blade and the lower surface (124) of the blade is convex; the leading edges (121) of all the blades are arranged towards the same rotating direction; the leading edge (121) of the blade is rounded and the trailing edge (122) of the blade is sharp; the mounting angle (C) of the blade is between-3 degrees and 5 degrees; the maximum thickness position of the airfoil of the blade (12) is at a distance of 25% to 35% of the chord length of the blade (12) from the leading edge (121) of the blade.

2. The multi-functional dancing device of claim 1, wherein: the handle (3) is connected with the other end of the pull rod (2); the handle (3) is provided with an anti-skid structure (31); the rotary vane head (11) is connected with the pull rod (2) through a bearing, and the bearing adopts a deep groove ball bearing.

3. A multi-functional dancing device according to claim 1 or 2, characterized in that: the blade (12) satisfies one of three conditions:

the first condition is as follows: the shapes and the structures of all the blades (12) are the same, and the wing profiles of the blades (12) adopt a biconvex type; the aspect ratio of a single blade (12) is greater than 1 and less than 6; the length of the single blade (12) is between 0.2 and 1 meter; the number of blades (12) is between 2 and 8;

and a second condition: the wing profiles of all the blades (12) adopt symmetrical biconvex wing profiles; the installation angles (C) of all the blades are-1-2 degrees;

and (3) carrying out a third condition: the airfoil profile of all the blades (12) adopts an airfoil profile with a convex upper surface and a substantially flat lower surface; the setting angles (C) of all the blades are the same and are all between 0 DEG and 4 deg.

4. A multi-functional dancing device according to claim 1 or 2, characterized in that: a rotating speed measuring device is arranged at the position of the rotating blade head (11), the rotating speed measuring device is in wireless connection with communication terminal equipment, and rotating speed information of the blade (12) is sent to the communication terminal equipment in a wireless mode; the rotational speed information is displayed in the form of a number or a time-rotational speed curve.

5. A multi-functional dancing device according to claim 1 or 2, characterized in that: a brake device is arranged at the position of the rotating blade head (11), and the brake device is manually controlled or automatically controlled;

when the brake device adopts a manual control mode, a brake control switch (32) is arranged on the handle (3); the brake device is purely mechanical or electromagnetic; when a purely mechanical brake device is adopted, the brake device is connected with a brake control switch (32) by a steel wire rope; when the electromagnetic brake device is adopted, the brake device is connected with a brake control switch (32) by adopting a wire and is provided with a battery, and the brake control switch (32) is electrically connected with the battery;

when the brake device adopts an automatic control mode, the brake device adopts an electromagnetic mode, an inductor (4) is arranged around the outer side of a protective ring (13), the inductor (4) is electrically connected with the brake device, a battery is arranged in a blade (12) or a rotating blade head (11), and the brake device is electrically connected with the battery; when the sensor (4) senses that an object approaches the sensor (4), the sensor (4) can send a signal to trigger the brake device to start to quickly stop the rotating blade device (1).

6. A multi-functional dancing device according to claim 1 or 2, characterized in that: adopt one of following three kinds of structures, convenient storage:

the structure I is as follows: the pull rod (2) adopts a telescopic structure;

the structure II is as follows: one end of the pull rod (2) connected with the rotating blade head (11) adopts a folding structure, and the pull rod (2) can be folded to be basically parallel to the blade (12) when not in use;

the structure is three: when the protective device adopts the protective ring (13), the protective ring (13) is made of soft materials; the blade (12) is hinged with the rotating blade head (11) through a hinge, and the blade (12) can be folded.

7. The multi-functional dancing device of claim 2, wherein: the handle (3) is provided with an intelligent sound box which is provided with an earphone jack, so that the earphone can be conveniently plugged to listen to programs or music.

8. A multi-functional dancing device according to claim 1 or 2, characterized in that: the blade (12) is made to rotate more beautifully by adopting one of the following two structures:

the structure I is as follows: the blades (12) are colored, and the blades (12) are connected with the rotating blade head (11) in an assembling mode, so that the blades (12) are convenient to replace;

the structure II is as follows: at least one of the upper surface (123) of the blade, the lower surface (124) of the blade, the guard ring (13) and the pull rod (2) is provided with a plurality of colored lamps (5); batteries are arranged on the rotating blade device (1) or the handle (3), and the batteries are arranged in the rotating blade head (11) or the blades (12) or the handle (3); the color lamp (5) is electrically connected with the battery.

9. The multi-functional dancing device of claim 8, wherein: the colored lamps (5) are controlled by the intelligent electronic controller, the lighting number of the colored lamps (5) is changed along with the change of the rotating speed of the blade rotating device (1), and the lighting number of the colored lamps (5) is increased when the blade rotating device (1) rotates faster.

10. The multi-functional dancing device of claim 1, wherein: the permanent magnet is arranged on the rotary vane device (1), the induction coil is arranged on the pull rod (2) close to the rotary vane device (1), the permanent magnet and the induction coil form a micro generator, and the micro generator is electrically connected with a battery arranged on the pull rod (2).

11. A multi-functional dancing device according to claim 1 or 2, characterized in that: set up cell-phone checkpost (112) on interior surface (111) of commentaries on classics leaf head, can fixed cell-phone convenient auto heterodyne.

12. A multi-functional dancing device according to claim 1 or 2, characterized in that: still include waterproof cloth (6), cover waterproof cloth (6) on commentaries on classics leaf ware (1), multi-functional dancing ware uses as the umbrella.

13. A multi-functional dancing device according to claim 12, wherein: the handle (3) is of a hollow structure, and the waterproof cloth (6) is folded and hidden in the handle (3) when not in use.

14. A multi-functional dancing device according to claim 1 or 2, characterized in that: the connecting part of the pull rod (2) and the rotating vane device (1) is connected by a tensioning device, the tensioning device is connected with a button arranged on the handle (3) by a tensioning rope, and the tensioning rope passes through the pull rod (2); the tensioning device comprises a spring and a moving pin which are arranged around the upper end of the pull rod (2) in pairs, the spring presses the moving pin to prop against the inner surface with a groove of the inner ring of the rotary vane head (11) so that the pull rod is firmly connected with the rotary vane head, the button on the handle is pressed to pull the tensioning rope to pull the moving pin to leave the inner surface of the inner ring of the rotary vane head, so that the tensioning device is loosened, and the rotary vane device can be separated from the pull rod.

Technical Field

Multi-functional dancing ware relates to sports equipment and toy technical field, especially relates to a windmill.

Background

The traditional sports equipment can be used for exercising the body of people, strengthening the physique, enriching the life of people and playing a great role in physical and mental health of people. However, most of the traditional sports equipment has stiff structure, weak experience sense during the sports process, less pleasure sense and single function. The traditional windmill toy can only rotate under the condition of wind or under the condition of directional movement, so that the windmill has a certain directional speed relative to the wind, and the rotating directions of the windmill are different when the wind blows in different directions vertical to the rotating plane of the windmill, so that the windmill can not rotate on site without wind, and the traditional windmill toy also has a single function.

It is therefore known that there is a need for improvements and developments in the prior art and products.

Disclosure of Invention

The invention aims to overcome the defects of the prior art, supplement and enrich sports equipment and toy families, and provide the multifunctional dancing device which is novel in structure, simple to operate and integrates multiple functions of interestingness, entertainment, sports, a selfie stick, an umbrella, a manual fan and the like.

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

multi-functional dancing ware includes: a rotating blade device and a pull rod;

the rotary vane device comprises a rotary vane head and a plurality of vanes which are uniformly distributed around the rotary vane head; the root of the blade is connected with the rotating blade head; the rotating blade head is movably arranged at one end of the pull rod, the blade can flexibly rotate around the pull rod along with the rotating blade head, and the rotating plane of the blade is vertical to the pull rod;

the device also comprises a protection device, wherein the protection device adopts a protection ring or a protection cover; when the protective ring is adopted, the protective ring is arranged on the periphery of the blade, the tip of the blade is connected with the protective ring, and the protective ring is one part of the blade rotating device; when the protective cover is adopted, the protective cover is arranged on the pull rod, the rotary blade of the main shaft of the protective cover rotates in the circumference, and the protective cover only moves along with the pull rod and does not rotate along with the rotary blade device; the protective cover is net-shaped; the protective cover is composed of a half-cover type protective cover and a full-cover type protective cover, the half-cover type protective cover only blocks one surface of the rotary vane device, which is close to the pull rod, and the tip of the vane, and the full-cover type protective cover surrounds the whole rotary vane device;

the cross sections of all the blades are airfoil-shaped, and at least one of the upper surface of each blade and the lower surface of each blade is convex; the front edges of all the blades are arranged towards the same rotating direction; the leading edge of the blade is rounded and the trailing edge of the blade is sharp. The included angle between the chord line of the blade and the rotating plane of the blade is the installation angle of the blade. Vertically arranging a pull rod, arranging a rotating blade head above the pull rod, arranging the pull rod below the pull rod, and defining the installation angle of the blade as a positive value when the front edge of the blade is higher than the rear edge of the blade; when the leading edge of the blade is lower than the trailing edge of the blade, the installation angle of the blade is defined as a negative value; the installation angle of the blade is between-3 degrees and 5 degrees; the maximum thickness position of the airfoil of the blade is at a distance of 25% to 35% of the chord length of the blade from the leading edge of the blade.

Furthermore, the multifunctional dancing device also comprises a handle, and the handle is connected with the other end of the pull rod.

Preferably, the handle is straight, and the handle is provided with an anti-skid structure.

Furthermore, all the blades are the same in shape and structure, and the wing profiles of the blades are of 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 1 and less than 6; the single leaf has the length of 0.2-1 m; the number of blades is between 2 and 8.

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-1-2 degrees.

Preferably, the airfoil profile of all the blades adopts an airfoil profile with a convex upper surface and a substantially flat lower surface, such as an NACA2412 airfoil profile; the installation angles of all the blades are the same and are all between 0 and 4 degrees.

Furthermore, a rotating speed measuring device is installed at the rotating blade head, the rotating speed measuring device is in wireless connection with the communication terminal equipment, and the rotating speed information of the blade is sent to the communication terminal equipment in a wireless mode. The rotational speed information is displayed in the form of a number or a time-rotational speed curve. The communication terminal equipment comprises a mobile phone and a computer.

Furthermore, a brake device is arranged at the rotating blade head and is manually or automatically controlled;

when the brake device adopts a manual control mode, the brake control switch is arranged on the handle; the brake device is purely mechanical or electromagnetic; when a purely mechanical brake device is adopted, the brake device is connected with a brake control switch by a steel wire rope; when the electromagnetic brake device is adopted, the brake device is connected with the brake control switch by adopting an electric wire and is provided with a battery, and the brake control switch is electrically connected with the battery;

when the brake device adopts an automatic control mode, the brake device adopts an electromagnetic mode, an inductor is arranged around the outer side of the protective ring and is electrically connected with the brake device, the battery is arranged in the blade or the rotating blade head, and the brake device is electrically connected with the battery; when the sensor senses that an object approaches the sensor, the sensor can send a signal to trigger the brake device to start and quickly stop the rotating blade device from rotating.

Furthermore, the pull rod adopts a telescopic structure, so that the pull rod is convenient to store.

Preferably, the one end that the pull rod is connected with the rotating blade head adopts beta structure, and the pull rod can be folded and be close to the blade with the pull rod that is parallel basically when not using, convenient storage.

Furthermore, the protective ring is made of soft materials, such as cloth or rubber; the blade is hinged with the rotating blade head through a hinge, the blade can be folded, and the folded blade is close to the pull rod.

Furthermore, the handle is provided with an intelligent sound box which is provided with an earphone jack, so that the earphone can be conveniently plugged to listen to programs or music.

Furthermore, the blades are colored, the blades are more beautiful when rotating, and the blades and the rotating blade heads are connected in an assembly mode, so that the blades with different colors can be conveniently replaced; and the optical teaching is convenient.

Furthermore, at least one of the upper surface of the blade, the lower surface of the blade, the protective ring and the pull rod is provided with a plurality of colored lamps; the battery is arranged on the rotating blade device or the handle and is arranged in the rotating blade head or the blade or the handle; the color lamp is electrically connected with the battery. The blades of the color lamps are arranged to rotate to be beautiful, and the color lamps can form various patterns.

Preferably, the colored lamps are controlled by the intelligent electronic controller, the lighting number of the colored lamps is changed along with the change of the rotating speed of the blade rotating device, and the lighting number of the colored lamps is increased as the blade rotating device rotates faster.

Furthermore, the rotating blade head and the pull rod are connected through a bearing, and the bearing adopts an oilless and non-ball bearing or a deep groove ball bearing.

Furthermore, a permanent magnet is arranged on the rotary vane device, an induction coil is arranged on the pull rod and close to the rotary vane device, the permanent magnet and the induction coil form a micro generator, and the micro generator is electrically connected with a battery arranged on the pull rod; the blade rotating device rotates under the drive of manpower or the blowing of natural wind to drive the micro generator to generate electricity, and the generated electricity is charged into the battery.

Furthermore, a USB interface is arranged on the handle and electrically connected with the battery, and the USB interface can be a mobile phone.

Furthermore, the blades, the pull rod and the handle are all made of plastics.

Furthermore, the lower surface of the rotating blade head is provided with a mobile phone clip, so that a mobile phone can be fixed to conveniently take a self-timer, and the rotating blade head can be used as a self-timer rod.

Furthermore, the multifunctional flying device also comprises a rain-proof cloth which is in a round basin shape and covers the leaf rotating device, and the multifunctional flying device can be used as an umbrella. In order to facilitate the sleeving, the periphery of the waterproof cloth is provided with a stretching belt which is similar to a shower cap; or magic tapes are arranged on the periphery of the waterproof cloth and the protective ring; or, a zipper is arranged on the periphery of the waterproof cloth and the protective ring.

Furthermore, the handle is of a hollow structure, and the waterproof cloth is hidden in the handle when not in use.

Furthermore, the connecting part of the pull rod and the rotating vane device is connected by a tensioning device, the pull rod is hollow, the tensioning device is connected with a button arranged on the handle by a tensioning rope, and the tensioning rope passes through the pull rod; the tension device comprises a spring and a moving pin which are arranged around the upper end of the pull rod in pair, the spring presses the moving pin to prop against the inner surface of the inner ring of the rotary vane head so that the pull rod is fixedly connected with the rotary vane head, the button on the handle is pressed to pull the moving pin to leave the inner surface of the inner ring of the rotary vane head, so that the tension device is loosened, and the rotary vane device can be separated from the pull rod. The tensioner is arranged to: when the rotating speed of the leaf rotating device is fast enough, the leaf rotating device can fly like a bamboo dragonfly by pressing the key on the handle with hands to loosen the leaf rotating device.

Furthermore, the multifunctional dancing device is made of waterproof materials and is convenient to use in water.

Furthermore, the multifunctional dancing device is used as a sports competition device, and the multifunctional dancing device can be operated according to the effective operation time or: the single average rotating speed of the blade is fast or slow, or: the blades compete at the highest speed of rotation of a single time.

The basic working principle and the using method of the multifunctional dancing device are as follows: a user holds the handle, vertically arranges the pull rod and vertically and repeatedly lifts and pulls the multifunctional dancing device up and down by hands; or, the user holds the handle, arranges the pull rod horizontally back and forth, and pushes and pulls the multifunctional dancing device back and forth with hands, with the handle facing backwards and the rotary vane facing forwards; the blade rotating device is driven to reciprocate up and down or back and forth, and the blades can rotate around the pull rod due to the special structure of the blade rotating device. When the installation angle of the blades is larger than 2 degrees, the blades rotate to blow air in the direction of the pull rod, and the multifunctional dancing device can be used as a manual fan; the working principle of the multifunctional dancing device is illustrated by the vertical arrangement of the pull rods: the blade is driven by external force to move 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 an airfoil shape of the blade is close to the front edge of the blade and far away from the rear edge of the blade, the head-on coming flow is divided into two air flows with different sizes when acting on the convex surface of the airfoil shape, the small air flow moves towards the front edge of the blade, and the large air flow moves towards the rear edge 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 flows push the blade to move towards the front edge of the blade, and the blades rotate around the pull rod together under the action. Within a certain rotating speed range, the faster the reciprocating frequency of the pull rod is, the faster the blades rotate; the larger the reciprocating motion amplitude of the pull rod 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 user's strength is enough, the blade can rotate at a high speed. Therefore, the user has pleasurable experience and achievement feeling, the feeling is comfortable, the functions of entertainment and body building can be achieved at the same time, the user can exercise in pleasure, and the physical and mental health of the user is benefited. If the frequency of the push-pull is reduced, the rotational speed of the blades will slow down. The force varies throughout the push-pull process. 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.

The invention has the beneficial effects that: the multifunctional dancing device is novel in structure and multiple in functions. User's push-and-pull rod makes the blade do reciprocating motion, make the blade rotate under the effect of relative air current, be one kind and convert reciprocating linear motion into circumference pivoted apparatus, can give the body and educate the amusement, take exercise, generate electricity, teaching etc., also can regard as the umbrella and use from the rapping bar, not only can use in the air and can also use in aqueous, be fit for old, well, blue or green, few crowd uses, it is recreational strong, experience is felt strong, compare with traditional sports equipment and toy windmill, more can attract masses to participate in the motion and take exercise, will produce the influence of being far away to improving the whole people's physical quality.

Drawings

FIG. 1 is a schematic perspective view of the structure of one embodiment of the present invention, looking up from the side down;

FIG. 2 is a schematic perspective view of another embodiment of the present invention, looking down from the side and above;

fig. 3 is a schematic perspective view of an embodiment of the invention fitted with a rain cloth, seen from above and from the side;

FIG. 4 is an airfoil schematic view of a blade of the present invention;

FIG. 5 is a schematic view of the air flow analysis of the present invention with the blades up.

In the figure:

1-a rotating vane device, 11-a rotating vane head, 111-the lower surface of the rotating vane head, 112-a mobile phone clip, 12-a vane, 121-the front edge of the vane, 122-the rear edge of the vane, 123-the upper surface of the vane, 124-the lower surface of the vane, 13-a protective ring; 2-a pull rod; 3-handle, 31-antiskid structure, 32-control switch, 33-USB interface; 4-a sensor; 5-colored lamps; 6-waterproof cloth;

the method comprises the following steps of A-chord line of the blade, B-rotating plane of the blade, C-installing angle of the blade, D-upward direction indication of the blade, streamline indication of upper airflow when the E-blade moves upward and advancing direction indication of the G-blade.

Detailed Description

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

Example 1: multi-functional dancing ware includes: a rotating vane device 1 and a pull rod 2;

the rotary vane device 1 comprises a rotary vane head 11, a plurality of vanes 12 uniformly distributed around the rotary vane head 11 and a protective ring 13 arranged on the periphery of the vanes 12; the root of the blade 12 is connected with the rotating blade head 11, and the tip of the blade 12 is connected with the protective ring 13; the rotating blade head 11 is movably arranged at one end of the pull rod 2, the blade 12 can flexibly rotate around the pull rod 2 along with the rotating blade head 11, and the rotating plane of the blade 12 is vertical to the pull rod 2;

all the blades 12 are airfoil-shaped in cross section, and at least one of the upper surface 123 of the blade and the lower surface 124 of the blade is convex; the leading edges 121 of all the blades are mounted in the same rotational direction; the leading edge 121 of the blade is rounded and the trailing edge 122 of the blade is sharp. The included angle between the chord line A of the blade and the rotating plane B of the blade is the installation angle C of the blade. When the pull rod 2 is vertically arranged, the rotating blade head 11 is arranged above, the pull rod 2 is arranged below, and the front edge 121 of the blade is higher than the rear edge 122 of the blade, the installation angle C of the blade is defined as a positive value; the stagger angle C of the blade is defined as negative when the leading edge 121 of the blade is lower than the trailing edge 122 of the blade; the installation angle C of the blade is between-3 degrees and 5 degrees; the maximum thickness position of the airfoil of the blade is at a distance of 25% to 35% of the chord length of the blade 12 from the leading edge 121 of the blade.

Example 2: on the basis of embodiment 1, a protective ring is omitted, a protective cover is used as a protective device, the protective cover is arranged on a pull rod, the rotary circumference of a main blade of the protective cover is circular, and the protective cover only moves along with the pull rod and does not rotate along with a rotary blade device; the protective cover is net-shaped, similar to the protective cover of an electric fan; the protective cover is composed of a half-cover type protective cover and a full-cover type protective cover, the half-cover type protective cover only blocks one surface of the rotary vane device, which is close to the pull rod, and the tip of the vane, and the full-cover type protective cover surrounds the whole rotary vane device.

Furthermore, in embodiment 1 or embodiment 2, the rotating blade head 11 and the pull rod 2 are connected through a bearing, and the bearing adopts a deep groove ball bearing.

Furthermore, on the basis of embodiment 1 or embodiment 2, a handle 3 is further included, and the handle 3 is connected with the other end of the pull rod 2.

Preferably, the handle 3 is straight, and the handle 3 is provided with an anti-slip structure 31.

Preferably, all the blades 12 are identical in shape and structure, and the airfoil profile of the blade 12 is of a biconvex type, i.e., the upper surface 123 of the blade protrudes upward, and the lower surface 124 of the blade protrudes downward; the aspect ratio of a single blade 12 is greater than 1 and less than 6; the single blade 12 has an aspect length of between 0.2 m and 1 m; the number of blades 12 is between 2 and 8;

or: the wing profiles of all the blades 12 adopt symmetrical biconvex wing profiles, such as NACA0016 or NACA0012 wing profiles; the installation angles C of all the blades are-1-2 degrees;

or: the airfoil of all the blades 12 adopts an airfoil with a convex upper surface and a basically flat lower surface, such as an NACA2412 airfoil; the mounting angles C of all the blades are the same and are between 0 ° and 4 °.

Furthermore, a rotation speed measuring device is installed at the rotary blade head 11, a wireless connection is formed between the rotation speed measuring device and the communication terminal equipment, and rotation speed information of the blade 12 is sent to the communication terminal equipment in a wireless mode. The rotational speed information is displayed in the form of a number or a time-rotational speed curve. The communication terminal equipment comprises a mobile phone and a computer.

Furthermore, a brake device is arranged at the rotating blade head 11 and is manually controlled or automatically controlled;

when the brake device adopts a manual control mode, a brake control switch 32 is arranged on the handle 3; the brake device is purely mechanical or electromagnetic; when a purely mechanical brake device is adopted, the brake device is connected with the brake control switch 32 through a steel wire rope; when the electromagnetic brake device is adopted, the brake device is connected with the brake control switch 32 by adopting an electric wire and is provided with a battery, and the brake control switch 32 is electrically connected with the battery;

when the brake device adopts an automatic control mode, the brake device adopts an electromagnetic mode, the inductor 4 is arranged around the outer side of the protective ring 13, the inductor 4 is electrically connected with the brake device, the battery is arranged in the blade 12 or the rotating blade head 11, and the brake device is electrically connected with the battery; when the sensor 4 senses that an object approaches the sensor 4, the sensor 4 sends a signal to trigger the brake device to start to rapidly stop the rotating vane device 1 from rotating. The induction triggering distance is set to be 0.3m, namely when the inductor 4 induces that an object is 40.3m away from the inductor, the inductor 4 immediately sends a signal to trigger the braking device to start to rapidly brake and stop the rotating blade device 1.

Furthermore, the pull rod 2 adopts a telescopic structure, so that the storage is convenient.

Preferably, the one end that pull rod 2 is connected with rotary vane head 11 adopts beta structure, and pull rod 2 can be folded and be close to blade 12 with blade 12 is basically parallel and pull rod 2 when not using, convenient storage.

Further, the guard ring 13 is made of a soft material such as cloth or rubber; the blade 12 is hinged with the rotating blade head 11 through a hinge, the blade 12 can be folded, and the folded blade 12 is close to the pull rod 2.

Furthermore, the handle 3 is provided with an intelligent sound box which is provided with an earphone jack, so that the earphone can be conveniently plugged to listen to programs or music.

Furthermore, the blades 12 are colored, and the blades 12 are connected with the rotating blade head 11 in an assembling mode, so that the blades 12 with different colors can be conveniently replaced.

Furthermore, at least one of the upper surface 123 of the blade, the lower surface 124 of the blade, the guard ring 13 and the pull rod 2 is provided with a plurality of colored lamps 5; batteries are arranged on the rotary vane device 1 or the handle 3, and the batteries are arranged in the rotary vane head 11 or the vanes 12 or the handle 3; the color lamp 5 is electrically connected with the battery.

Preferably, the colored lamps 5 are controlled by an intelligent electronic controller, the intelligent electronic controller is electrically connected with the colored lamps 5 and the battery, the lighting number of the colored lamps 5 is changed along with the change of the rotating speed of the rotary vane device 1, and the lighting number of the colored lamps 5 is increased as the rotary vane device 1 rotates faster.

Furthermore, a permanent magnet is arranged on the rotary vane device 1, an induction coil is arranged on the pull rod 2 close to the rotary vane device 1, the permanent magnet and the induction coil form a micro generator, and the micro generator is electrically connected with a battery arranged on the pull rod 2; the rotating vane device 1 rotates under the drive of manpower or the blowing of natural wind to drive the micro generator to generate electricity, and the generated electricity is charged into a battery.

Furthermore, a USB interface 33 is disposed on the handle 3, the USB interface 33 is electrically connected to a battery, and the USB interface 33 can be a mobile phone.

Furthermore, the blade 12, the pull rod 2 and the handle 3 are all made of plastic.

Furthermore, the lower surface 111 of the rotating blade head is provided with a mobile phone clip 112, so that a mobile phone can be fixed to bring convenience for self-shooting, and the rotating blade head can be used as a self-shooting rod.

Furthermore, the multifunctional dancing device further comprises a rain-proof cloth 6, wherein the rain-proof cloth 6 is in a round basin shape, the rain-proof cloth 6 covers the rotating blade device 1, and the multifunctional dancing device can be used as an umbrella. In order to facilitate the sleeving, the periphery of the waterproof cloth 6 is provided with a stretching belt which is similar to a shower cap; or magic tapes are arranged on the periphery of the waterproof cloth 6 and the protective ring 13; or, a zipper is arranged on the periphery of the waterproof cloth 6 and the protective ring 13. As shown in fig. 3, the rain-proof cloth 6 covers the vane rotating device 1, and the vanes 12 are covered by the rain-proof cloth 6 and cannot be seen.

Further, the handle 3 is of a hollow structure, and the waterproof cloth 6 is hidden in the handle 3 when not in use.

Furthermore, the connecting part of the pull rod 2 and the rotating vane device 1 is connected by a tensioning device, the pull rod 2 is hollow, the tensioning device is connected with a button arranged on the handle 3 by a tensioning rope, and the tensioning rope passes through the pull rod 2; the tensioning device comprises a spring and a moving pin which are arranged around the upper end of the pull rod 2 in pairs, the spring presses the moving pin to prop against the inner surface with a groove of the inner ring of the rotary vane head 11 so that the pull rod is firmly connected with the rotary vane head, and the button on the pressing handle pulls the tensioning rope to pull the moving pin to leave the inner surface of the inner ring of the rotary vane head, so that the tensioning device is loosened, and the rotary vane can be separated from the pull rod. The tensioner is arranged to: when the rotating speed of the leaf rotating device is fast enough, the leaf rotating device can fly like a bamboo dragonfly by pressing the key on the handle with hands to loosen the leaf rotating device.

Furthermore, the multifunctional dancing device is made of waterproof materials and is convenient to use in water.

Furthermore, the multifunctional dancing device is used as a sports competition device, and the multifunctional dancing device can be operated according to the effective operation time or: the average speed of the blade 12 in a single time, or: the blades 12 race at a single maximum speed.

The basic working principle and the using method of the multifunctional dancing device are as follows: a user holds the handle 3 by hand, vertically arranges the pull rod 2 and lifts and pulls the multifunctional dancing device up and down by reciprocating with hands; or, a user holds the handle 3 by hand, arranges the pull rod 2 horizontally and forwards, and pushes and pulls the multifunctional dancing device forwards and backwards by hand, with the handle 3 facing backwards and the rotary vane device 1 facing forwards; the rotary vane device 1 is driven to reciprocate up and down or back and forth, and the vanes 12 rotate around the pull rod 2 due to the special structure of the rotary vane device 1. When the installation angle C of the blades is more than 2 degrees, the blades 12 rotate to blow air in the direction of the pull rod 2, and the multifunctional dancing device can be used as a manual fan; the working principle of the multifunctional dancing device is illustrated by the vertical arrangement of the pull rod 2: the blade 12 is driven by external force to move up and down, the upper surface 123 of the blade and the lower surface 124 of the blade are alternately windward, at least one surface of the upper surface 123 of the blade and at least one surface of the lower surface 124 of the blade are convex, the maximum thickness position of the airfoil of the blade 12 is close to the front edge 121 of the blade and far away from the rear edge 122 of the blade, the windward current is divided into two airflows with different sizes when acting on the convex surface of the airfoil, the small airflow moves towards the front edge 121 of the blade, and the large airflow moves towards the rear edge 122 of the blade, so that a momentum difference is formed between the front edge 121 of the blade and the rear edge 122 of the blade, the airflow pushes the blade 12 to move towards the front edge 121 of the blade, and the blades 12 rotate around the pull rod 2 together under the action of inertia. Within a certain rotating speed range, the faster the reciprocating frequency of the pull rod 2 is, the faster the blades 12 rotate; the larger the amplitude of the reciprocating motion of the pull rod 2 is, the faster the blade 12 rotates; the resistance of the blade 12 to advance increases with the increase of the rotation speed, but after the blade 12 rotates, the reynolds number of the blade 12 increases with the rapid increase of the rotation speed of the blade 12, the increase of the resistance of the blade 12 to advance is slowed down, and if the user's strength is sufficient, the blade 12 rotates at a high speed. Therefore, the user has pleasurable experience and achievement feeling, the feeling is comfortable, the functions of entertainment and body building can be achieved at the same time, the user can exercise in pleasure, and the physical and mental health of the user is benefited. If the frequency of the push-pull is reduced, the rotational speed of the blades 12 will slow down. The force varies throughout the push-pull process. Of course, the movement process of the blades 12 is a complicated process, and the multiple movements of forward movement, upward movement and downward movement are combined together and also influenced by the local environment such as wind speed and wind direction.

The invention has the beneficial effects that: the multifunctional dancing device is novel in structure and multiple in functions. The user push-and-pull rod 2 makes blade 12 do reciprocating motion, make blade 12 rotate under the effect of relative air current, be one kind and convert reciprocating linear motion into circumference pivoted apparatus, can give sports entertainment, take exercise, generate electricity, teaching etc., also can regard as the umbrella and use from rapping bar, not only can use in the air and also can use in aqueous, be fit for old, well, blue or green, few crowd uses, also very suitable collective activity, many people matrix arrangement plays together, also can regard as gymnastics apparatus to use, it is recreational strong, experience is strong, compare with traditional sport equipment and toy windmill, more can attract masses to participate in the motion and take exercise, will produce profound influence to improving the whole people's physical quality. Can enrich the life content of people and has positive effect for improving the life quality of people. Can be used for adding tiles to satisfy the demand of people on good life.