CN1113166A - Titrimetric mixing instrument - Google Patents

Abstract

The mixing apparatus is applicable in particular to liquid mixing for chemical titration. It mainly consists of such components of micromotor, driving device, eccentric shaft, bottle seat and bottle neck limiter. Its bottle seat is made in the inclined form, and is mounted on the eccentric shaft by means of easy push fit mode, and is driven by the micromotor and driving device to make circumferential motion, so that it can make the liquids in the bottle obtain good mixed effect. Its bottle mouth is limited by the bottle neck limiter, so that it only makes the slight circumferential motion and up and down movement, therefore said bottle mouth has a relatively-stable position so as to ensure that the volumetric solution is dropped into the bottle. Said apparatus can be substituted for miscellaneous and awkward manual mixing operation of conventional titration.

Description

Titrimetric mixing instrument

The present invention relates to a kind of mixed instrument, the liquid mixing when being particularly suitable for the chemistry titration operation.

Existing mixed instrument mainly contains the electromagnetic agitation type, electronic agitating type and electronic oscillation mode etc.It is difficulty or inconvenient that these instruments are used for titration operation, because will add stirrer or stirring rod in reactant liquor; And existing electronic oscillation mode also is whole bottle simple oscillation (motion), and the swing of bottleneck is very big, can't adapt to the needs of titration operation.Therefore, present titration operation also rests on the level of hand mix basically, and not only clumsiness but also fatigue are brought inconvenience to the operator, and is disadvantageous to result's reappearance.

Chemistry titration is a kind of detection and Quality Control means of popularizing very much, has a wide range of applications in fields such as chemistry, chemical industry, medicine, health, food.Therefore, become the electric operating of complicated tradition (manually) titration operation of clumsiness, will have very big using value undoubtedly into simple and direct high-effective and labour-saving.

Task of the present invention is to present a kind of electronic mixed instrument, its mixed function especially is suitable for chemistry titration, effect is not second to manual operation (mixing), and in mixed liquor, do not add the object that any stirring rod (or son) etc. is used to mix, bottleneck is realized by certain complex oscillation of reaction bulb fully also without any the barrier that hinders titration.

The invention is characterized in: (1) reaction bulb (conical flask) bottom is fixed on the motor-driven excentric shaft by a kind of special bottle seat, and this bottle seat can make the bottom surface of bottle become certain angle of inclination with surface level.This structure can make the bottle along continuous straight runs do the swing of certain radius on the one hand, and the inclination owing to bottle makes the liquid in the bottle produce a kind of compound motion that is different from horizontal circular motion on the other hand.(2) Ping neck is limited in the very little scope of activities, can not do swing than long radius with the bottom of bottle.The effect of hand mix when its result is similar to titration with generation; And, therefore, guaranteed that the safety of vs splashes into because the position of bottleneck is relatively stable.The angle of inclination of bottle is generally unsuitable excessive, and 5-15 ° gets final product usually.The principle that the angle of inclination is selected is the optimization of mixed effect and two factors of security that splash into.

Be described in further detail below in conjunction with the specific embodiment figure that provides.

Fig. 1 is the front view of a kind of concrete structure of the present invention.

Fig. 2 is the longitudinal sectional drawing of I part among Fig. 1.

(Fig. 1) be the titrimetric mixing instrument front view, it mainly is made up of micromotor (1), gearing (2,3,4), excentric shaft (14), sucker disk seat (10), dish-shaped sucker (9), bottleneck limiter parts such as (6).Micromotor is fastened on the casing with screw, and casing can be made by iron sheet or plastics.Preferably select buncher for use in order to obtain desirable rotating speed (being generally n=60-600 rev/min), the big small pulley in the gearing, available nonmetallic materials (plastics) are made, and with weight reduction and noise, are keyed on respectively on motor and the excentric shaft.There is a smooth endoporus at the center of sucker disk seat (10), and sky is enclosed within on the rotor journal of excentric shaft (14) upper end.By the special dish-shaped sucker (9) that forms of acid and alkali-resistance rubber, its bottom is anchored on the sucker disk seat (10); And have dish-shaped end face horizontal by an angle of inclination beta, and the dip plane should be to support (7) direction toward having a down dip, and the inclination angle is generally β=5-15 °, and this example is 15 °; The negative pressure of utilizing sucker to produce is adsorbed the bottle end of conical flask (8) thereon tightly.Sucker (9) should select to help observing the color of bottle interior change color, as milky.The front end semicircular in shape of bottleneck limiter (6), liner acid and alkali-resistance rubber, in case bottleneck is impaired, and in diametric(al) maintenance 1-2mm gap, its objective is bottleneck can freely be rotated in very little scope, can guarantee that again bottleneck obtains the more stable position of satisfying the titration requirement, to guarantee that vs splashes into safely and reliably.The other end of limiter is fastened on the support (7) with screw.

From the above, this titrimetric mixing instrument has following function (working routine).

1, at first the bottle base of conical flask (8) is sitting on the dish-shaped sucker (9), and applies suitable power the air in the dish-shaped sucker is discharged, produce negative pressure, make the two in conjunction with firmly; Bottleneck is enclosed within the bottleneck limiter (6).

2, pressing button makes motor (1) starting, and by the small pulley in the gearing (2), big belt wheel (3) drives excentric shaft (4) and rotates.Sky is enclosed within the sucker disk seat (10) of excentric shaft upper end axle journal and fixes dish-shaped sucker (9) on it, under the effect of spring (11) pulling force, can not rotate with excentric shaft (axle journal of big belt wheel promptly is housed), can not rotation, and can only be that the eccentric axis of e is the center of circle with the eccentric throw, with the eccentric distance e is the radius revolution, thereby drives conical flask (8) swing.

One of embodiment that above embodiment just optimizes just exemplifies rather than limits the scope of the invention.The change that this technical field personnel are made and other use also to be included in the spirit of the present invention and by claims and define.

Claims (6)

1, a kind of mixed instrument that especially is suitable for the chemistry titration use, mainly by micromotor and gearing thereof, excentric shaft, bottle seat, bottleneck limiter etc. are partly formed.It is characterized in that reaction bulb is certain heeling condition; Bottleneck is limited in metastable position, so that the splashing into of vs; The circular motion of certain radius is done in the bottom of bottle under the drive of bottle seat.

2, mixing arrangement according to claim 1 is characterized in that the bottle seat is certain inclination.

3, according to the described device of claim 2, its feature also comprises the group that is seamed into by the sucked type bottle seat that tilts.

4, device according to claim 1, the limiter that it is characterized in that bottleneck should be limited in bottleneck certain position can make it that level of freedom is arranged again; The part that contacts with bottleneck should select non-hard material for use in order to avoid the bottleneck rapid wear.

5, device according to claim 1, its feature also comprise similar design the non-bottle seat that tilts the group of corresponding composition.

6, device according to claim 1, its feature also comprise the group that the use that is used for other purpose and form is formed.

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