CN2912748Y

CN2912748Y - Improved structure of bamboo dragon fly

Info

Publication number: CN2912748Y
Application number: CN 200620118522
Authority: CN
Inventors: 吴宝璋; 林宗宪
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-06-06
Filing date: 2006-06-06
Publication date: 2007-06-20
Anticipated expiration: 2016-06-06

Abstract

The utility model provides an improved structure of a bamboo dragonfly. The utility model comprises a basic-body, a helix flying-disk and a power device. The basic-body can be a helicopter-shape and a column-hole is arranged on the gravity-center position for the inserting of the driving shaft of the helix flying-disk. The bottom-end of the driving shaft can be positioned into the power device and is to be controlled by a fastening part. An effect-rod is connected with an elastic-line under the fastening part and the revolving of the effect-rod is controlled by a pulling rope. A reverting-force is generated by the torsion of the elastic-line to drive the fastening part to drive a braking-bar to revolve, and then under a floating-force generated by the revolving of the airscrew of the helix flying-disk, the basic body is driven to fly up.

Description

The bamboo dragonfly structure-improved

Technical field

The utility model is to improve the structure of bamboo dragonfly in former days, and the principle of utilizing screw to revolve to fly, and makes to cooperate other special moulding, drives this this figure modelling and reaches and educate the glad bamboo dragonfly structure-improved of teaching with bamboo dragonfly.

Background technology

Most of common people are in the memory in childhood, promptly there is the child of bamboo dragonfly to play, it is with the screw central authorities of tool one suitable corner cut, be installed with a stock, the mat both hands are rubbed with the hands to revolve and are let go after stock makes it to produce certain turn power, wind cutting effect when being the turn of membership screw, and come-up is ascended to heaven, this is to have entertainment effect very simply again.Yet along with the constantly new virgin object for appreciation of exploitation of manufacturer, bamboo dragonfly is not unique option gradually yet, and what children yearned for now is the toy that makes rapid progress.Once had a merchant that the manual effect of bamboo dragonfly is changed the structure of starting with battery therebetween, this just loses the manual amusement originality of bamboo dragonfly.

Therefore, this kind of bamboo dragonfly has science and educates suggestive virgin the object for appreciation, be necessary to be continued in fact, and it must need the function that difference is taught through lively activities, and can suitable inspiration and teaching effect be arranged to children.

The utility model content

The utility model bamboo dragonfly structure-improved provides the body with certain moulding, makes the spiral flying disc drive body flight, makes to reach to educate the glad purpose of teaching.

The utility model bamboo dragonfly structure-improved has educates the effect of teaching in happy, body is designed certain moulding, and the spiral flying disc is located at the body position of centre of gravity, so that have the effect of balance when taking off.

The utility model bamboo dragonfly structure-improved is with a dynamic equipment, on can drive the buckling parts of the actuator lever of spiral flying disc, link rubber band under it and the mat stay cord orders about the rubber band distortion and produces power, make the spiral flying disc drive the purpose that body is ascended to heaven and can reach.

Description of drawings

Fig. 1: be three-dimensional one of the illustration of implementing of the present utility model;

Fig. 2: be three-dimensional two of the illustration of implementing of the present utility model;

Fig. 3: be the legend of spiral flying disc of the present utility model;

Fig. 4: be dynamic equipment legend of the present utility model.

[figure number explanation]

10 ... body 11 ... fuselage 12 ... vertical tail,

13 ... cylinder 14 ... position, hole 15 ... retainer

20 ... spiral flying disc 21 ... external toroidal ring 22 ... central shaft

23 ... screw 24 ... neck 25 ... go into to close portion

30 ... dynamic equipment 31 ... actuating rod 32 ... stay cord

33 ... force-applying piece 34 ... rubber band 35 ... buckling parts

The specific embodiment

Its overall structure of the utility model bamboo dragonfly structure-improved is made up by a body 10, spiral flying disc 20 and dynamic equipment 30 substantially, as shown in Figure 1 and Figure 2, is the embodiment of two kinds of different dynamic device 30 moulding.Wherein, in the global design shown in the embodiment, just as the helicopter moulding, body 10 is exactly the body of helicopter, and spiral flying disc 20 drives the major impetus source of helicopter just, this kind design is just meeting the structure and the principle of helicopter, therefore be to have the teaching significance that inspires the student that object is ascended to heaven on being used to impart knowledge to students, and obtain best effect of ascending to heaven according to going straight up to function, and be the relation of vertical tail, 12 with the main rotor (being spiral flying disc 20) of tail end, its formula is Sv=(Kv * S * b)/Lv, Sv is the vertical tail, area, Kv is the number ratio, and S is an area of plane, and b is the main wing diameter, Lv is the distance (arm of force) of main wing center of gravity to the vertical tail, center of air pressure, and be ask low-speed operations stable, must this formula result of calculation bigger, because of bamboo dragonfly slower than the flying speed of fixed-wing formula, by this, structural design body with helicopter not only has entertainment effect, more can obtain doctrinal instructional function.

Wherein, in the design that body 10 and spiral flying disc 20 go into to close, it is the cylinder 13 that is provided with a tool centre bore position 14 in body 10 position of centre of gravity places, as shown in Figure 3, this Kong Weizheng can go into the position for the central shaft 22 of spiral flying disc 20, in the helicopter embodiment shown in the figure, for the position that makes cylinder 13 can conform to true helicopter model, can be in body 10 according to adding counterweight to be adjusted to the position of correct center of gravity.

And spiral flying disc 20 is based on central shaft 22, the upper end equidistantly is provided with screw 23 to circumferencial direction, and with the end limit of fixing all the screws 23 of external toroidal ring 21, wherein, this screw 23 is in design, be the inclination angles of 3～7 degree for enabling stable flight, be provided with a neck 24 in central shaft 22 lower ends and can be for going into to close, make to push up to cause in cylinder 13 bottoms of body 10 and unlikelyly make spiral flying disc 20 and body 10 disengagings as the retainer 15 of o ring; Behind neck 24, be provided with one can be subjected to dynamic equipment 30 control go into to close portion 25, the embodiment that goes into to close portion 25 in figure is cylindrical design.

As shown in Figure 4, for the structure of dynamic equipment 30 is implemented illustration, being provided with one in the upper end can go into to close the buckling parts 35 that portion 25 closes relatively mutually relatively with spiral flying disc 20, and wherein, the portion 25 of going into to close of central shaft is one cylindric, buckling parts 35 then is the groove shape, so being harmonious can be fixing with spiral flying disc 20, with transferring power, and above the act, the design that both fasten relatively only is a possible embodiments, and multiple different embodiment still can be arranged certainly.

Be connected with an actuating rod 31 in buckling parts 35 belows, this actuating rod 31 is subjected to stay cord 32 control turns, and the lower end then links a rubber band 34, this rubber band 34 end in addition is fixed in dynamic equipment 30 bottoms, wherein, stay cord 32 end in addition then is provided with a force-applying piece 33, controls stay cord for the user.

The utility model bamboo dragonfly structure-improved is in when combination, is that the central shaft 22 with spiral flying disc 20 is inserted in the cylinder 13 of body 10, is buckled in its neck 24 with the holding part 15 as o type ring again, makes spiral flying disc 20 can drive body 10 when ascending to heaven and moves; In when operation, with spiral flying disc 20 go into to close the buckling parts 35 that portion 25 is incorporated into dynamic equipment 30, inferior turn spiral flying disc 20 makes it with 31 turns of buckling parts 35 induced effect bars, and makes simultaneously in the stay cord 32 involution bars 31, also affects rubber band 34; When to pull force-applying piece 33 when firmly pulling outward, this just makes actuating rod 31 drive buckling parts 35 rotations, also makes 20 turns of spiral flying disc simultaneously, under screw 23 fast rotational, can produce certain buoyancy and drive body 10 and ascend to heaven, this just reaches the purpose of teaching through lively activities.

In sum, the utility model bamboo dragonfly structure-improved is cut the principle of really utilizing bamboo dragonfly to ascend to heaven, develops the structural design that to have more effect, also make and reach the glad effect of teaching of residence, meet practical value and economic benefit fully, possess the positive important document of novel patent, so propose patent application in accordance with the law.

Claims

1, a kind of bamboo dragonfly structure-improved is characterized in that, includes:

One body is provided with the cylinder of tool centre bore position in the center of gravity place;

One spiral flying disc, tool one can go into to close the central shaft in the body cylinder, and its upper end is provided with the screw at several certain inclination angles of tool, and links each screw with an external toroidal ring, is provided with a neck in the central shaft lower end and goes into to close portion;

One dynamic equipment, establish can with go into the buckling parts that the portion of closing is harmonious, be provided with an actuating rod in the buckling parts lower end, this actuating rod links the stay cord of a tool force-applying piece, the lower end links rubber band.