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Action force and reaction force demonstration device

A demonstration device and reaction force technology, which can be used in educational appliances, instruments, teaching models, etc., can solve the problems that plague exhibit designers, and achieve the effect of promoting cognition.

Inactive Publication Date: 2016-04-27
HEFEI GENERAL MACHINERY RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Similarly, how to intuitively display these contents in popular science venues also puzzles exhibit designers

Method used

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  • Action force and reaction force demonstration device
  • Action force and reaction force demonstration device
  • Action force and reaction force demonstration device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] like figure 1 As shown, the legend is a schematic diagram of the structure of the demonstration device for the action and reaction force of a single wire rope ball with the same diameter.

[0032] The demonstration device includes a booth 1, a bracket 4 fixed on the platform of the booth 1, a scale 5 is arranged on the column of the bracket 4, and a guide member 3 perpendicular to the booth platform is fixed between the upper end of the bracket 4 and the platform of the booth 1, that is, a steel wire rope. A group of small balls 2 that can slide up and down are strung on the wire rope, and the diameters in this group of small balls 2 are all the same.

[0033] The working process of the demonstration device will be described in detail below in conjunction with the accompanying drawings.

[0034] Balls made of polyoxymethylene material (POM):

[0035] Firstly, the visitor or learner moves the ball 2 up to the upper end of the bracket 4 along the wire rope by hand or an...

Embodiment 2

[0039] like figure 2 As shown, the legend is a schematic diagram of the structure of the demonstration device for the action force and reaction force of the double steel wire rope balls with the same diameter.

[0040] The demonstration device includes a booth 1, a bracket 4 fixed on the platform of the booth 1, a scale 5 is arranged on the column of the bracket 4, and a guide member 3 perpendicular to the booth platform is fixed between the upper end of the bracket 4 and the platform of the booth 1, that is, a steel wire rope. A group of small balls 2 that can slide up and down are strung on the wire rope. Among them, the small ball on the left steel wire rope is made of ethylene-vinyl acetate copolymer (EVA), and the small ball on the right steel wire rope is made of polyoxymethylene material (POM); figure 2 It can be clearly seen that the diameter of the ball on the left wire rope is the same as the diameter of the ball on the right wire rope.

[0041] The working proce...

Embodiment 3

[0045] like image 3 As shown, the legend is a schematic diagram of the structure of the demonstration device for the different diameters of the double wire rope balls and the reaction force.

[0046] The demonstration device includes a booth 1, a bracket 4 fixed on the platform of the booth 1, a scale 5 is arranged on the column of the bracket 4, and a guide member 3 perpendicular to the booth platform is fixed between the upper end of the bracket 4 and the platform of the booth 1, that is, a steel wire rope. A group of small balls 2 that can slide up and down are strung on the wire rope. Wherein, the diameter of the ball on the left steel wire rope is different from that on the right steel wire rope, but the material is the same.

[0047] The working process of the demonstration device will be described in detail below in conjunction with the accompanying drawings.

[0048]Firstly, a visitor or a learner moves two groups of small balls up to the same height of the upper en...

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Abstract

The invention relates to an action force and reaction force demonstration device. The demonstration device comprises a support arranged on the surface of a demonstration platform, wherein the support is fixedly connected with the demonstration platform. A rod guide component is fixedly arranged between the support and the surface of the demonstration platform and is vertical to the surface of the demonstration platform. The guide component is provided with at least two small balls capable of sliding up and down freely. When the demonstration device is used, a watcher or a learner, to begin with, enables the small balls to be moved to the upper end of the support along the limit direction of the guide component, and then, releases the small balls; when the balls fall onto the surface of the demonstration platform, the balls collide; since the small balls are made of different materials, the re-bounce height of the upper ball is equal to or lower than the height where the ball is released; and therefore, the physical phenomena of action force and reaction force as well as elastic collision and inelastic collision are demonstrated visually. The watcher or the learner can clearly observe the whole process of the collision phenomenon through the demonstration device, thereby greatly facilitating the watcher or the learner to perceive the mechanics principle.

Description

technical field [0001] The invention relates to a demonstration device of action force and reaction force, which is mainly used for popular science education and teaching practice activities. Background technique [0002] Force is the action of an object on an object, so forces appear in pairs. When there is force, there are force-exerting objects and force-receiving objects. The force generated by the interaction between two objects in different forms, such as attraction, relative motion, deformation, etc., is called action force. Since the action between two objects is always mutual, then we call a pair of forces interacting between objects called action force and reaction force. [0003] Where there is action, there is reaction. We can call any one of these forces an action force and the other a reaction force. The orderly arrangement of molecules depends on this powerful force. [0004] Ideally, after an object collides, the deformation can recover without heat gene...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09B23/10
CPCG09B23/10
Inventor 冯帅将李小瓯李春李璇仝文浩黄洪明邢金龙
Owner HEFEI GENERAL MACHINERY RES INST
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