Demonstration instrument for verifying gravity direction

A technology for demonstrating the direction of gravity, applied in the field of demonstration instruments for verifying the direction of gravity, can solve the problems of difficulty in determining that the metal ball is perpendicular to the water surface in the water tank, and inconvenient to operate.

Pending Publication Date: 2021-09-10
翁德平
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this solution is difficult to determine that the metal ball is perpendicular to t...

Method used

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  • Demonstration instrument for verifying gravity direction
  • Demonstration instrument for verifying gravity direction
  • Demonstration instrument for verifying gravity direction

Examples

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Embodiment 1

[0042] A demonstration instrument for verifying the direction of gravity, comprising a box body 1 and an inclined plate 2 located on the box body 1, one end of the inclined plate 2 is hinged to the box body 1 through a hinge, and the inclined plate 2 is A support frame 3 and a water tank 4 are provided, and the top of the support frame 3 is hung with a metal ball 6 through a rope 5, and the metal ball 6 sinks into the water of the water tank 4;

[0043] A lifting mechanism is provided between the box body 1 and the inclined plate 2;

[0044] The lifting mechanism includes a first connecting piece 7, a second connecting piece 8 and a third connecting piece 9, all of which are strip-shaped. One end of the first connecting piece 7 is connected to the lower surface of the inclined plate 2, so that The other end of the first connecting member 7 is rotationally connected to the second connecting member 8, and the end of the second connecting member 8 away from the connection with th...

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PUM

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Abstract

The invention relates to a physics teaching instrument, in particular to a demonstration instrument for verifying a gravity direction. The demonstration instrument comprises a box body and an inclined plate located on the box body, and a lifting mechanism is arranged between the box body and the inclined plate; the lifting mechanism comprises a strip-shaped first connecting piece, a strip-shaped second connecting piece and a strip-shaped third connecting piece, one end of the first connecting piece is connected with the lower surface of the inclined plate, the other end of the first connecting piece is rotationally connected with the second connecting piece, and the second connecting piece is connected with the box body; the third connecting piece is arranged between the first connecting piece and the second connecting piece, the upper end of the third connecting piece is rotationally connected with the first connecting piece, and the lower part is rotationally connected with a sliding piece; a rack is arranged on the upper surface of the second connecting piece, and a gear is rotationally connected to the side face of the sliding piece and meshed with the rack. By moving the sliding piece, the opening angle of the first connecting piece and the second connecting piece is changed, then the inclination angle of the inclined plate is changed, the positioning is more accurate through mutual meshing of the rack and the gear, and the overall structure is more stable.

Description

technical field [0001] The invention relates to a physics teaching instrument, in particular to a demonstration instrument for verifying the direction of gravity. Background technique [0002] In the course of Gravity and Center of Gravity and Center of Gravity and Center of Gravity and Center of Gravity and Center of Section 1 of Chapter 4 of Luke Edition Compulsory 1 of High School Physics, only a simple sentence is used to indicate the direction of gravity: when the rope hanging the object is at rest, it always hangs vertically, and it starts to fall from a high place. Objects towards the ground always fall straight down, which indicates that the direction of gravity is straight down. The direction of gravity only depends on the teacher's verbal description, and there is no suitable equipment to verify the direction of gravity. Because physics is difficult to understand, it is difficult for the teacher to tell students whether the direction of gravity is vertically downwa...

Claims

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Application Information

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IPC IPC(8): G09B23/08
CPCG09B23/08
Inventor 肖磊余凌浩翁德平
Owner 翁德平
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