CN213240053U

CN213240053U - Acid burette capable of improving measurement precision

Info

Publication number: CN213240053U
Application number: CN202021693937.9U
Authority: CN
Inventors: 苗苏萍
Original assignee: 苗苏萍
Current assignee: Suqian Suxin engineering quality inspection center
Priority date: 2020-08-14
Filing date: 2020-08-14
Publication date: 2021-05-18
Anticipated expiration: 2030-08-14

Abstract

The utility model discloses an acid burette capable of improving the measurement precision, which comprises a burette, a piston column and a fixing ring; the butt fusion is run through at buret left surface top has the inlet pipe, the fixed butt fusion in inlet pipe top has the feeder hopper, buret inner chamber top sliding insertion has the piston post, the cavity has been seted up to piston post inside, piston post top middle part vertical fixation has the U type bracing piece, fixed bonding in U type bracing piece right-hand member bottom has solid fixed ring, gu fixed ring middle part is fixed the bonding has the magnifying glass. The utility model discloses a magnifying glass is surveyed piston column bottom and the relative position of scale mark and just can be got the position of acid solution liquid level, and then the effectual accuracy that improves acid solution liquid level measurement, and the piston post presses on the acid solution liquid level, can flatten the acid solution liquid level, avoids solution to form the error that the arc liquid caused in the face of measuring under the tension effect, has further improved solution measurement's accuracy.

Description

Acid burette capable of improving measurement precision

Technical Field

The utility model relates to an acid buret technical field specifically is an acid buret that can improve measurement accuracy.

Background

A burette refers to a meter that holds a titrant solution during a titration operation. The burette is a slender glass tube with uniform inner diameter and scale, and the lower end of the glass tube is provided with a glass sharp mouth with different volumes of 25ml, 50m l and the like.

The existing acid buret is in the process of actual use, because the scale mark is carved densely, the measuring error is easy to appear by naked eye observation, and sometimes the acid solution to be measured is colorless transparent liquid, so that the observation is not easy.

In order to solve the problem, the utility model provides an acid burette which can improve the measuring accuracy.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a can improve measurement accuracy's acid buret, solved the problem that proposes among the background art.

In order to achieve the above object, the utility model provides a following technical scheme: an acid burette capable of improving measurement accuracy comprises a burette, a piston column and a fixing ring;

the butt fusion has the inlet pipe at buret left surface top through the butt fusion, the fixed butt fusion in inlet pipe top has the feeder hopper, buret inner chamber top sliding insertion has the piston post, the cavity has been seted up to piston post inside, piston post top middle part vertical fixation has the U type bracing piece, fixed bonding in U type bracing piece right-hand member bottom has solid fixed ring, gu fixed ring middle part is fixed to bond has the magnifying glass, the horizontal fixed butt fusion in buret right surface top has the dead lever, the fixed butt fusion of dead lever right-hand member has the stop collar.

As a preferred embodiment of the present invention, the bottom of the burette is provided with a titration switch.

As an optimal implementation mode of the utility model, U type bracing piece right-hand member vertical slip runs through the stop collar middle part, the horizontal screw thread through connection in stop collar right side middle part has spacing bolt.

As a preferred embodiment of the present invention, the middle part of the magnifying glass and the bottom of the piston post are located at the same level.

As a preferred embodiment of the present invention, the burette right side is provided with scale marks.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model relates to a can improve measurement accuracy's acid buret, for traditional acid buret, this device is at the in-process of in-service use, the piston post is pressed on the acid solution surface, and the piston post removes along with the decline of acid solution liquid level, make the relative position who observes piston column bottom and scale mark through the magnifying glass just can obtain the position of acid solution liquid level, and then the effectual acid solution liquid level measurement's that has improved accuracy, and the piston post is pressed on the acid solution liquid level, can flatten the acid solution liquid level, avoid solution to form the error that the arc liquid face led to the fact in the tension effect, solution measurement's accuracy has further been improved.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

FIG. 1 is a front view of an acid burette of the present invention to improve measurement accuracy;

figure 2 is the utility model relates to a can improve the preceding section view of buret, piston post, stop collar, solid fixed ring, inlet pipe and the feeder hopper of acid buret of measurement accuracy.

In the figure: titration switch 1, buret 2, scale mark 3, piston post 4, inlet pipe 5, feeder hopper 6, U type bracing piece 7, dead lever 8, stop collar 9, solid fixed ring 10, magnifying glass 11, well cavity 12.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "mounted," "connected" and "disposed" are to be interpreted broadly, and may be, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed; the utility model discloses in the model of providing with electrical apparatus only supplies the reference, to the ordinary technical personnel in this field, can change the different models that the function is the same according to the in service use condition and use electrical apparatus, to the ordinary technical personnel in this field, can the particular case understand that above-mentioned term is in the utility model provides a concrete meaning.

Referring to fig. 1-2, the present invention provides a technical solution: an acid burette capable of improving measurement accuracy comprises a burette 2, a piston column 4 and a fixing ring 10;

the butt fusion is run through at 2 left surfaces tops of buret and has inlet pipe 5, the fixed butt fusion in inlet pipe 5 top has

feeder hopper

6, 2 inner chamber tops sliding insertion of buret have piston post 4, well cavity 12 has been seted up to piston post 4 inside, 4 top middle part vertical fixation butt fusion in piston post have U

type bracing piece

7, 7 right-hand member bottoms of U type bracing piece are fixed to bond and have solid fixed ring 10, gu fixed ring 10 middle part is fixed to bond has magnifying

glass

11, 2 right sides tops of buret transversely fix the butt fusion in right side and have dead lever 8, the fixed butt fusion of dead lever 8 right-hand member has stop collar 9.

In this embodiment (please refer to fig. 1), through the arrangement of the piston column 4, the U-shaped support rod 7, the fixing ring 10 and the magnifying glass 11, compared with the conventional acid burette, in the actual use process of the device, the piston column 4 is pressed on the surface of the acid solution, and the piston column 4 moves along with the descending of the liquid level of the acid solution, so that the position of the liquid level of the acid solution can be obtained by observing the relative position between the bottom of the piston column 4 and the scale mark 3 through the magnifying glass 11, thereby effectively improving the accuracy of the measurement of the liquid level of the acid solution, and the piston column 4 is pressed on the liquid level of the acid solution, so as to flatten the liquid level of the acid solution, avoid the error caused by the arc-shaped liquid surface formed by the solution under the action of tension, and further improve.

Wherein, the bottom of the burette 2 is provided with a titration switch 1.

In this embodiment (see fig. 1), the setting of the titration switch 1 can control the speed of the acidic solution discharged from the bottom of the burette 2 by adjusting the titration switch 1.

The right end of the U-shaped supporting rod 7 vertically slides to penetrate through the middle of the limiting sleeve 9, and a limiting bolt 13 is connected to the middle of the right side face of the limiting sleeve 9 in a penetrating mode through transverse threads.

In this embodiment (see fig. 1), by setting the limit bolt 13, the U-shaped support rod 7 and the limit sleeve 9 can be relatively fixed by screwing the limit bolt 13, and the U-shaped support rod 7 can slide along the middle of the limit sleeve 9 by unscrewing the limit bolt 13.

Wherein, the middle part of the magnifier 11 and the bottom of the piston column 4 are at the same horizontal height.

In the embodiment (see fig. 1), the magnifying glass 11 is arranged, so that the relative position of the bottom of the piston column 4 and the scale mark 3 can be clearly observed through the magnifying glass 11.

Wherein, the burette 2 right flank is provided with scale mark 3.

In this embodiment (see fig. 1), the height of the liquid level of the acidic solution can be obtained by observing the relative position between the bottom of the piston column 4 and the scale mark 3 through the arrangement of the scale mark 3.

It should be noted that the utility model relates to a can improve measurement accuracy's acid buret, including titration switch 1, buret 2, scale mark 3, piston post 4, inlet pipe 5, feeder hopper 6, U type bracing piece 7, dead lever 8, stop collar 9, solid fixed ring 10, magnifying glass 11, well cavity 12, the part is general standard component or the part that technical staff in the field knows, and its structure and principle all are that this technical staff all can learn through the technical manual or learn through conventional experimental method.

The working principle is that when the device is used, acid solution is added into a feed hopper 6, the acid solution flows into the inner cavity of a feed pipe 5 through the feed hopper 6 and then flows into the inner cavity of a burette 2, the liquid level of the acid solution in the inner cavity of the burette 2 is enabled to be equal to the bottom of the feed pipe 5, then a limit bolt 13 is unscrewed, a piston column 4 slides downwards along the inner wall of the burette 2, the piston column 4 is further enabled to be pressed at the top of the liquid level of the acid solution, at the moment, the relative position between the bottom of the piston column 4 and a scale mark 3 is observed through a magnifier 11 and recorded, then the titration switch 1 is opened, the acid solution is enabled to be discharged from the bottom of the burette 2, the piston column 4 descends along with the descending of the liquid level of the acid solution, the titration switch 1 is closed after a certain amount of acid solution is discharged, then the, then subtract the data of secondary record with the data of first record and just can obtain this titration and discharge the content of acid solution altogether, for traditional acid buret, this device is at the in-process of in-service use, piston post 4 presses on the acid solution surface, and piston post 4 moves along with the decline of acid solution liquid level, make and observe the relative position of piston post 4 bottom and scale mark 3 through magnifying glass 11 and just can obtain the position of acid solution liquid level, and then the effectual accuracy that improves acid solution liquid level measurement, and piston post 4 presses on the acid solution liquid level, can flatten the acid solution liquid level, avoid solution to form the error that the arc liquid surface caused under the tension effect to measure, further improved solution measurement's accuracy.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. An acid burette capable of improving measurement accuracy is characterized by comprising a burette (2), a piston column (4) and a fixing ring (10);

buret (2) left surface top runs through the butt fusion and has inlet pipe (5), inlet pipe (5) top fixed fusion has feeder hopper (6), buret (2) inner chamber top sliding insertion has piston post (4), well cavity (12) have been seted up to piston post (4) inside, piston post (4) top middle part vertical fixation butt fusion has U type bracing piece (7), U type bracing piece (7) right-hand member bottom is fixed to bond has solid fixed ring (10), gu fixed ring (10) middle part is fixed to bond has magnifying glass (11), buret (2) right surface top transversely fixes the butt fusion right and has dead lever (8), dead lever (8) right-hand member fixed fusion has stop collar (9).

2. An acid burette capable of improving measurement accuracy according to claim 1, wherein: the bottom of the burette (2) is provided with a titration switch (1).

3. An acid burette capable of improving measurement accuracy according to claim 1, wherein: the right end of the U-shaped supporting rod (7) vertically slides to penetrate through the middle of the limiting sleeve (9), and a limiting bolt (13) is connected to the middle of the right side face of the limiting sleeve (9) in a penetrating mode through transverse threads.

4. An acid burette capable of improving measurement accuracy according to claim 1, wherein: the middle part of the magnifier (11) and the bottom of the piston column (4) are positioned at the same horizontal height.

5. An acid burette capable of improving measurement accuracy according to claim 1, wherein: the right side surface of the burette (2) is provided with scale marks (3).