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Auxiliary device for measuring cylinder

An auxiliary device and measuring cylinder technology, which is applied in the direction of measuring device, measuring capacity, and capacity measurement calibration, etc., can solve the problems of difficult to observe the liquid concave surface, the aging and discoloration of the plastic measuring cylinder, affecting the use of the measuring cylinder, etc., so as to reduce the cost of experimental teaching. , The effect of preventing falling and breaking, and good teaching effect

Inactive Publication Date: 2015-12-23
黄凌玲
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when using a plastic measuring cylinder, it is difficult to observe the meniscus of the liquid, which will seriously affect the correct use of the measuring cylinder for beginners
In addition, plastic measuring cylinders also have problems such as aging and discoloration, and are not easy to clean.

Method used

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  • Auxiliary device for measuring cylinder

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Embodiment Construction

[0013] The present invention will be further described below in conjunction with examples, but the present invention is not limited to these examples.

[0014] The present invention is a measuring cylinder auxiliary device, which includes an inverted T-shaped groove base 1, an L-shaped bracket 2 detachably connected to the base 1, and a magnifying glass 3 that is movably installed on the bracket 2, such as figure 1 shown.

[0015] One side of the inverted T-shaped groove of the base 1 is a closed part, and the other side is an opening. The inner upper end of the groove is provided with an anti-vibration plate 4, which makes the measuring cylinder more stable when placed in the inverted T-shaped groove. Stable, firm, and effectively prevent the measuring cylinder from being accidentally broken; the support 2 includes a horizontal rod 2-1 and a vertical rod 2-2, the horizontal rod 2-1 is a telescopic rod, and the free end of the horizontal rod 2-1 The end is movably hinged on t...

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PUM

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Abstract

The invention discloses an auxiliary device for a measuring cylinder. The device comprises an inverted-T-shaped groove base, an L-shaped support detachably connected to the base, and a magnifying lens movably mounted on the support. A sealing portion is arranged on one side of an inverted-T-shaped groove of the base, an open portion is arranged on the other side of the inverted-T-shaped groove of the base, and a vibration preventing sheet is mounted on the inner wall of the upper end in the groove. The support comprises a transverse rod and a vertical rod, the free end of the transverse rod is movably hinged to the base, and the magnifying lens is vertically adjusted and fixed along the vertical rod through an adjusting knob at the rear end of the magnifying lens. The measuring cylinder can be effectively prevented from being accidentally broken, and the volume of liquid in the measuring cylinder can be read out fast and accurately.

Description

technical field [0001] The invention relates to a supporting facility of experimental teaching equipment, in particular to a measuring cylinder auxiliary device. Background technique [0002] In the teaching of chemistry experiments, graduated cylinders are often used by teachers and students. However, the measuring cylinder is one of the varieties with the highest loss rate among chemical glass instruments. It is easy to be knocked over or blown down by the wind during use. Because of its light weight and thin wall, the measuring cylinder is extremely easy to break after being dumped. The falling and breaking of the graduated cylinder will not only cause the loss of resources, but also cause the poisonous and corrosive medicine in the graduated cylinder to splash out, and it is more likely to cause harm to the students' bodies. Nowadays, science experiment classes are also offered in elementary schools, and graduated cylinders are also used. When the cognition and consciou...

Claims

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Application Information

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IPC IPC(8): G01F19/00B01L9/00G09B19/00
Inventor 黄凌玲
Owner 黄凌玲
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