CN107179383B - Device capable of accurately reading burette - Google Patents

Abstract

The invention aims to provide a device capable of accurately reading a burette, which comprises a small laser instrument, a telescopic rotary burette clamp, a detachable iron stand and a small level. The level gauge on the demountable iron stand is used for adjusting and guaranteeing the level of the demountable iron stand, then the small laser is vertically hung on a cantilever rod of the demountable iron stand, the end part of the burette is tightly clamped by the telescopic rotary burette clamp at the moment, the burette and the small laser are guaranteed to be on a horizontal line as far as possible, a switch of the small laser is turned on, and the position of the burette is adjusted until a complete laser point appears on the table top of the demountable iron stand. At this point, the burette is placed vertically for more accurate readings. The device design is simple, the operation of being convenient for burette reading is more accurate in the titration experiment.

Description

Device for accurate reading of burettes

technical field

The invention relates to the field of experimental instruments, in particular to a device capable of accurately reading a burette.

Background technique

The main devices of the titration test are burette, iron stand, Erlenmeyer flask. A burette is a glass device for measuring the volume of a titrated solution, and is usually divided into an acid burette and an alkaline burette. Due to the corrosion of the detachable iron stand, the corrosion of the rubber stopper of the burette clamp, and improper manual operation, the burette in the test may be in a tilted state, resulting in inaccurate readings. The present invention successfully overcomes the above disadvantages. Easy to use and good effect.

Contents of the invention

The purpose of the present invention is to provide a device capable of accurately reading the burette; the device can make the burette read accurately.

The present invention realizes the purpose of the invention and adopts the following technical solutions:

A device capable of accurately reading burettes consists of four parts: a small laser (1), a telescopic rotating burette clamp (2), a detachable iron stand (3), a small level (4), and a level on the detachable iron stand (4) It is used to adjust and ensure the level of the detachable iron stand, and then hang the small laser device (1) vertically on the cantilever rod of the detachable iron stand (3). At this time, tightly clamp the end of the burette with the telescopic rotating burette clamp (2), try to ensure that the burette and the small laser instrument are on a horizontal line, turn on the switch of the small laser instrument (1), and adjust the position of the burette until it reaches the detachable iron stand table A complete laser spot appears on the burette, at this time, the burette is placed vertically for a more accurate reading. It is characterized in that: the small laser instrument (1) is switched on, and when a complete bright spot appears on the detachable iron stand and the laser in the burette is not refracted, the burette is guaranteed to be in a vertical state.

As a preference, the present invention provides a device capable of accurately reading the burette. The telescopic rotating burette clamp (2) can flexibly adjust the position of the burette through telescopic rotation to ensure that the burette is in a vertical state.

As a preference, the present invention provides a device capable of accurately reading a burette, wherein the detachable iron stand (3) is used for hanging a small laser instrument and fixing a telescopic rotating burette clamp. The vertical bracket of the iron stand is designed to be detachable, which is convenient for storage and does not take up space.

As a preference, the present invention provides a device capable of accurately reading a burette, and the small level (4) is used to check the level of the detachable iron stand.

Beneficial effect:

The present invention compares with prior art, and its beneficial effect is reflected in:

The small laser instrument suspended in the present invention (1) utilizes the principle of the plumb weight, the principle that the laser propagates along a straight line in the solution and the principle that refraction occurs in different media to ensure that the laser is vertical, and the small level instrument (4) inlaid with a detachable iron stand ) to ensure the level of the iron frame, and to make the burette in a vertical state by adjusting the telescopic rotating burette clamp (2), so as to achieve the purpose of accuracy.

The invention overcomes the disadvantages of the prior art and provides a matching device capable of accurately reading the burette, so that the reading of the titration experiment is more accurate.

Description of drawings

Figure 1 is a front view of the device for correcting the vertical state of the burette

Detailed ways

The present invention will be further explained by specific examples below.

The specific implementation is through a device that can accurately read the burette, including four parts: a small laser instrument (1), a telescopic rotating burette clamp (2), a detachable iron stand (3), a small level (4), detachable The spirit level (4) on the iron stand is used to adjust and ensure the level of the detachable iron stand, then hang the small laser instrument (1) vertically on the cantilever rod of the detachable iron stand (3), at this time use the telescopic rotating burette Clip (2) clamps the end of the burette tightly, and try to ensure that the burette and the small laser are on a horizontal line. Turn on the switch of the small laser instrument (1), adjust the position of the burette until a complete laser spot appears on the detachable iron stand table. At this point, the buret is placed vertically for more accurate readings,

The small-sized laser instrument (1) turns on the switch, and when a complete bright spot appears on the detachable iron frame platform, and the laser in the burette does not refract, then the burette is guaranteed to be in a vertical state.

The telescopic rotating burette clamp (2) can flexibly adjust the position of the burette through telescopic rotation, so as to ensure that the burette is in a vertical state.

The detachable iron stand (3) is used for hanging a small laser instrument and fixing a telescopic rotating burette clamp. The vertical bracket of the iron stand is designed to be detachable, which is convenient for storage and does not take up space.

The small-sized spirit level (4) is used for checking the level of the detachable iron frame platform.

It will be apparent to those skilled in the art that the invention is not limited to the details of the above-described exemplary embodiments, but that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Accordingly, the embodiments should be regarded in all points of view as exemplary and not restrictive, the scope of the invention being defined by the appended claims rather than the foregoing description, and it is therefore intended that the scope of the invention be defined by the appended claims rather than by the foregoing description. All changes within the meaning and range of equivalents of the elements are embraced in the present invention. Any reference sign in a claim should not be construed as limiting the claim concerned.

In addition, it should be understood that although this specification is described according to implementation modes, not each implementation mode only contains an independent technical solution, and this description in the specification is only for clarity, and those skilled in the art should take the specification as a whole , the technical solutions in the various embodiments can also be properly combined to form other implementations that can be understood by those skilled in the art.

Claims (4)

1. A device that can accurately read the burette is composed of four parts: a small laser instrument (1), a telescopic rotating burette clamp (2), an unloadable iron stand (3), and a small level (4), which can be unloaded on the iron stand The spirit level (4) is used to adjust and ensure the level of the unloadable iron stand, then hang the small laser instrument (1) vertically on the cantilever rod of the unloadable iron stand (3), at this time use the telescopic rotating burette clamp (2 ) tightly clamp the end of the burette, try to ensure that the burette and the small laser instrument are on a horizontal line, turn on the switch of the small laser instrument (1), and adjust the position of the burette until a complete laser spot appears on the unloadable iron stand table. , the burette is placed vertically for more accurate readings, and it is characterized in that: the small laser instrument (1) is switched on, and when a complete bright spot appears on the unloadable iron stand, and the laser in the burette does not refract, it is guaranteed The buret is in a vertical position. 2. A device capable of accurately reading the burette according to claim 1, characterized in that: the telescopic rotating burette clamp (2) can flexibly adjust the position of the burette through telescopic rotation to ensure that the burette is in a vertical state . 3. a kind of device that can accurately read burette according to claim 1 is characterized in that: described unloadable iron frame platform (3) is to be used for hanging small-sized laser instrument, fixed telescopic rotating burette clip; The stand is designed to be detachable for easy storage without taking up space. 4. A device capable of accurately reading a burette according to claim 1, characterized in that: said small level (4) is used to check the level of the unloadable iron frame table top.

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