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Free falling body teaching experiment device

An experimental equipment and free fall technology, applied in the field of physical dynamics education demonstration equipment, can solve problems such as affecting the experimental results and mutual interference in the falling process of objects, and achieve the effect of reducing the propagation medium, avoiding mutual interference and reducing noise.

Inactive Publication Date: 2020-02-07
CHONGQING UNIV OF ARTS & SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention intends to provide a free-fall teaching experiment equipment to solve the problem that the objects interfere with each other during the falling process and affect the experimental results during the current experiment.

Method used

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  • Free falling body teaching experiment device
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  • Free falling body teaching experiment device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] A free fall teaching experiment equipment, basically as attached figure 1 As shown, it includes a base 1, a frame 2 fixed on the base 1, and a bracket 3, and the bracket 3 is located on the rear side of the frame 2. Two closed experimental tube bodies 4 are fixed side by side on the front side of the frame body 2, and a connecting tube 48 is arranged between the experimental tube bodies 4. The two ends of the connecting tube 48 are respectively connected with the two experimental tube bodies 4, The cross section is rectangular, and the front side of the experimental tube body 4 is transparent, such as glass.

[0037] Also includes two baffles 41, combined figure 2 As shown, two baffles 41 both penetrate the back side of the frame body 2 and the experimental tube body 4 (ie figure 2 The left side of the middle), and the two pieces are connected to the frame body 2 and the experimental tube body 4 slidingly and laterally. The rear end of the baffle 41 is located on the rea...

Embodiment 2

[0048] The difference between Embodiment 2 and Embodiment 1 is only that the frame body 2 is provided with a mounting groove under the test tube body 4. Such as image 3 As shown, it also includes two feeding structures, each of which includes a lever 7 hinged in the mounting groove. The distance from the left end of the lever 7 to the hinge joint with the mounting groove is three times the distance from the right end of the lever 7 to the hinge joint with the mounting groove. The right end of the lever 7 is located below the push rod 51, the left end of the lever 7 is located between the frame body 2 and the bracket 3, and the left end of the lever 7 is hinged with a moving rod 71.

[0049] To image 3 As shown in the figure, the left side of the frame body 2 is vertically slidably connected with a transport frame 8, and the top end of the moving rod 71 is hinged under the transport frame 8. The right side wall of the transport frame 8 is provided with a communication hole 81 co...

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Abstract

The invention belongs to the technical field of physical kinetic education demonstration appliances and discloses a free falling body teaching experiment device comprising a base and a frame body fixed on the base; the frame body is slidably connected with baffle plates; the free falling body teaching experiment device further comprises two experimental tube bodies fixed on the frame body; both ends of each experimental tube body are closed; feeding ports are formed in the top ends of the experimental tube bodies; discharge ports are formed in the lower portions of the experimental tube bodies; the baffle plates are provided with two, and the two baffle plates penetrate through the upper parts of the two experimental tube bodies respectively and are in sliding connection with the experimental tube bodies; and an air pump is further fixed on the base, and an air extraction port of the air pump communicates with the two experimental tube bodies. According to the free falling body teaching experiment device in the invention, the problem of influencing the experimental result due to mutual interference of object blocks during the falling process in current experiment conduction is solved.

Description

Technical field [0001] The invention belongs to the technical field of physical dynamics education demonstration appliances, and specifically relates to a free fall teaching experiment equipment. Background technique [0002] One of the very classic experiments in physics teaching in the free fall laboratory. The traditional experiment involves the teacher or student placing two or more test objects at the same height, then letting go at the same time to observe the falling time of two or more objects However, this method of experiment is greatly influenced by external factors, and it cannot ensure that two experimental objects fall from the same height at the same time during the experiment. In order to overcome the above-mentioned problems, a kind of experimental equipment has appeared, which includes a frame body, and a block is slidably connected to the frame body. The test object is placed on the block so that the test object is at the same height, and the block is slid to m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09B23/08
CPCG09B23/08
Inventor 伏春平
Owner CHONGQING UNIV OF ARTS & SCI
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