CN109966745A

CN109966745A - A kind of Lee's Sa such as swing

Info

Publication number: CN109966745A
Application number: CN201910337036.1A
Authority: CN
Inventors: 许辉
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-04-25
Filing date: 2019-04-25
Publication date: 2019-07-05

Abstract

The invention discloses a kind of Lee's Sa such as swings, it is characterized in that, including the first support post and the second support post being vertically fixed on ground, the crossbeam affixed with them is equipped between first support post and the upper end of the second support post, crossbeam is connect with swing body, swing body is swingable, the swing includes swing seat and is located at thick pillar with handles on swing seat, the top of thick pillar is equipped with the first lifting rope of swing body, the upper head of first lifting rope is connected with the second lifting rope and third lifting rope of shape in Y-shape, second lifting rope and third lifting rope, it is fixed on crossbeam, first lifting rope, second lifting rope is connected with third lifting rope three in " Y " word shape, the wherein equal length of the second lifting rope and third lifting rope.This swing is at low cost, it is easy, safe and reliable to realize, the principle of science can be presented, the educational value with science popularization, and has amusement and body-building function.

Description

A kind of Lee's Sa such as swing

Technical field

The present invention relates to the sports equipment of sports equipment technology more particularly to science popularization Interactive Experience class, specifically a kind of Lee Sa such as swing.

Background technique

Whole people's science popularization is always that country pays much attention to strategic plan, whether the work of popular science of education department or social machine The work of popular science of structure such as community is all the pith of state and society development.Based on education and instruction department, such as school, science and technology The exhibition article in shop etc. has good educational value, but is often limited to particular place, specific crowd and could participate in, and needs professional people Member or professional knowledge technical ability could understand or use, and be unfavorable for popularizing science, and for the amusement of community, fitness equipment, Ordinary person can be used, but only stay in amusement or body-building, it is difficult to carry educational value.

By science popularization product in conjunction with fitness equipment, the principle of science is presented, not only with the educational value of science popularization, but also has amusement And body-building function, it allows sci-tech product to walk out laboratory, sci-tech product band is arrived school, takes community to, there is social valence well Value and economic value, are an innovative behaviors.

Two frequencies in mutually perpendicular direction are at the simple harmonic oscillation motion profile of simple integer ratio in floor projection Synthesized well-regulated, stable closed curve is called lissajous figures, and conventional swing is swung in one direction, conventional The motion profile of swing is straight line in floor projection.

Summary of the invention

The purpose of the present invention is in view of the deficiencies of the prior art, and provide a kind of Lee's Sa such as swing.This swing is at low cost, It realizes and is easy, is safe and reliable, the principle of science can be presented, the educational value with science popularization, and have amusement and body-building function.

Realizing the technical solution of the object of the invention is:

A kind of Lee's Sa such as swing, unlike the prior art, including the first support post being vertically fixed on ground and Two support posts, between the first support post and the upper end of the second support post be equipped with the crossbeam affixed with them, crossbeam with The connection of swing body, swing body is swingable, and the swing includes swing seat and is located at thick pillar with handles on swing seat, thick pillar Top be equipped with the first lifting rope of swing body, the upper head of the first lifting rope is connected with the second lifting rope and third of shape in Y-shape Lifting rope, the second lifting rope and third lifting rope, are fixed on crossbeam, and the first lifting rope, the second lifting rope are connected with third lifting rope three is in " Y " word shape, wherein the equal length of the second lifting rope and third lifting rope.

The length ratio of first lifting rope and the second lifting rope and third lifting rope is adjustable, to change two vertical single pendulums Pendulum length, and then change the frequency of two single pendulums.

Operator is sitting on swing seat, holds handle, and embraces the swing together of thick pillar with swing body safety.

The method that the technical program utilizes " Y " font trapeze realizes the vibration superposition of two vertical direction, and two Vibration is single pendulum, thus meets the formation condition of lissajous figures, the length of the first lifting rope and the second lifting rope and third lifting rope Ratio is adjustable and swing body starting point position, realizes lissajous figures pendulum.

The technical program has the recreational functions of swing, and operator can be allowed simply by adjusting different initial positions Put figure is observed, probes into frequency ratio and period ratio；Adjust swing " Y " font pendulum length ratio optionally to observe two Swing swinging track；It can be by dripping or the method for drift sand observes the swinging track of swing.

This swing is at low cost, it is easy, safe and reliable to realize, the principle of science can be presented, the education valence with science popularization Value, and have amusement and body-building function.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of embodiment；

Fig. 2 is lissajous figures schematic diagram in embodiment.

In figure, 1. first 5. handle of support post 2. second support post, 3. crossbeam, 4. swing seat, 6. thick pillar 7. 9. third lifting rope of the first 8. second lifting rope of lifting rope.

Specific embodiment

The contents of the present invention are further elaborated with reference to the accompanying drawings and examples, but are not to limit of the invention It is fixed.

Embodiment:

Referring to Fig.1, a kind of Lee's Sa such as swing, unlike the prior art, including the first support being vertically fixed on ground Column 1 and the second support post 2 are equipped with affixed with them between first support post 1 and the upper end of the second support post 2 Crossbeam 3, crossbeam 3 are connect with swing body, and swing body is swingable, and the swing includes swing seat 4 and is located at band on swing seat 4 The thick pillar 6 of handle 5, the top of thick pillar 6 are equipped with the first lifting rope 7 of swing body, and the upper head of the first lifting rope 7 is connected in " Y " The second lifting rope 8 and third lifting rope 9 of shape, the second lifting rope 8 and third lifting rope 9, are fixed on crossbeam 3, the first lifting rope 7, Two lifting ropes 8 are connected with 9 three of third lifting rope in " Y " word shape, wherein the equal length of the second lifting rope 8 and third lifting rope 9.

The length ratio of first lifting rope 7 and the second lifting rope 8 and third lifting rope 9 is adjustable, to change two vertical lists The pendulum length of pendulum, and then change the frequency of two single pendulums.

Operator is sitting on swing seat 4, holds handle 5, and embraces the swing together of thick pillar 6 with swing body safety.

The method that this example utilizes " Y " font trapeze realizes the vibration superposition of two vertical direction, and two vibrations are equal For single pendulum, thus meet the formation condition of lissajous figures, the length ratio of the first lifting rope 7 and the second lifting rope 8 and third lifting rope 9 Lissajous figures pendulum as shown in Figure 2 is realized in adjustable and swing body starting point position, and " frequency ratio " refers to " Y " font in figure The frequency ratio of the single pendulum of two vertical direction generated, " phase angle " refer to swing release initial position and center position The angle of straight line and one of pendulum, wherein pendulum length calculates referring to Fig.1, frequency are as follows:, it follows that x The hunting frequency in direction；The hunting frequency in the direction y, as Fx and When the ratio of Fy meets ratio as shown in Figure 2, the swinging track of swing is with regard to as shown in Figure 2.

Claims

1. a kind of Lee's Sa such as swing, characterized in that vertical including the first support post being vertically fixed on ground and the second support Column, is equipped with the crossbeam affixed with them between the first support post and the upper end of the second support post, crossbeam and swing body connect It connects, swing body is swingable, and the swing includes swing seat and is located at thick pillar with handles on swing seat, sets at the top of thick pillar There is the first lifting rope of swing body, the upper head of the first lifting rope is connected with the second lifting rope and third lifting rope of shape in Y-shape, and second Lifting rope and third lifting rope, are fixed on crossbeam, and the first lifting rope, the second lifting rope and third lifting rope three connect in " Y " word shape, The wherein equal length of the second lifting rope and third lifting rope.

2. Lee's Sa such as swing according to claim 1, characterized in that first lifting rope and the second lifting rope and third lifting rope Length ratio it is adjustable.