Built-in multi-tube type water rocket

Abstract

The invention relates to a built-in multi-tube type water rocket belonging to the field of physical demonstrative experiments. The built-in multi-tube type water rocket comprises a machine body (1) and an air charging system (2). The built-in multi-tube type water rocket is characterized in that the periphery of the machine body (1), which is internally provided with a multi-tube cylinder (3) formed by parallelly fixing a plurality of slim tubes with equal lengths, is firmly sealed with the periphery of the inner side of the machine body (1); the orifice end of the multi-tube cylinder (3) is close to a bottle mouth (4) positioned at the inner side of the machine body (1) and retains a small space with the bottle mouth (4); the machine body (1) is appropriately pinched to suck an appropriate amount of water, and the water is absorbed in the multi-tube cylinder (3) and between the multi-tube cylinder (3) and the bottle mouth (4); a rubber tube (6) and a long hard slim tube (7) which are positioned on the air charging system (2) are inserted into the bottle mouth (4) of the machine body (1) and a hole of the multi-tube cylinder (3) for air charging; and after the machine body (1) is completely charged with air, the machine body (1) can be emitted towards a direction to be emitted. The invention solves the technical problem that the water rocket can be emitted to any directions, is convenient to operate, has low fault rate and can increase more education functions when used for teaching.

Description

technical field [0001] The patent of the present invention relates to an experimental instrument for demonstrating the change of momentum, and belongs to the field of experimental instruments for physics teaching in universities and middle schools. Background technique [0002] Up to now, most of the water rocket demonstration experimental instruments we have seen are upward-launching or obliquely-launching water rocket instruments. Once the water is launched downward, the water cannot be ejected by the gas in the water rocket, and the water spraying effect cannot be achieved, which will affect the experiment. Effect. The inventor of this patent gave two solutions in the patent 200920267707.3 "A New Type of Water Rocket" and the journal "Physical Experiment" 2010.10 "Water Rocket That Can Be Launched at Any Angle", but the manufacturing process is relatively complicated and the failure rate is high. The structure of the rocket needs to be redesigned, how to do it is simple ...

AI Technical Summary

Problems solved by technology

[0002] Up to now, most of the water rocket demonstration experimental instruments we have seen are upward-launching or obliquely-launching water rocket instruments. Once the water is launched downward, the water cannot be ejected by the gas in the water rocket, and the water spraying effect cannot be achieved, which will affect the experiment. Effect

The inventor of this patent gave two solutions in the patent 200920267707.3 "A New Type of Water Rocket" and the journal "Physical Experiment" 2010.10 "Water Rocket That Can Be Launched at Any Angle", but the manufacturing process is relatively complicated and the failure rate is high. The structure needs to be redesigned, how to do it is simple and easy, the water spray effect is good, the failure rate is low, that is, the water rocket that can be launched upwards and downwards, this patent will solve this problem

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