RU175089U1 - Free-standing tripod-cuvette compartment for test tubes, ditches and beakers - Google Patents

Abstract

The utility model relates to mechanical training devices in optics (general-purpose equipment for chemical or physical laboratories) and can be used to fix and accurately and conveniently position cuvettes, tubes and glasses relative to the optical bench of the MDR-41 monochromator and the like. The device can also be used in experiments and laboratory work on optics (spectroscopy). The objective of the utility model is to carry out the functions of a cuvette compartment for a monochromator with a tripod - fixing, accurate and convenient positioning of cuvettes, tubes and beakers of arbitrary shape relative to the optical bench of the MDR-41 monochromator and similar ones, as well as their quick and convenient change without dismantling in the tripod clamp. Tripod-cuvette compartment for test tubes, cuvettes and glasses, consisting of a metal rod and t perennial base, moreover, to fix the tubes, glasses and cuvettes, use a metal disk with centrally symmetrical holes for the tubes made on it and equidistant from each other by a distance smaller than the diameter of the glasses with radial restrictive bends for the location of the cuvette and glasses on it washers fixed to the shaft with screws. Thus, it is possible to easily and accurately install and replace glasses or cuvettes without dispensing with clamps, simply changing one glass to another. The accuracy of the position of the glass is achieved by focusing it on the restrictive bends. If necessary, you can additionally fix the disk (2) by screwing a screw similar to the screw (5) into the hole (6).

Description

The utility model relates to mechanical training devices in optics (general-purpose equipment for chemical or physical laboratories) and can be used to fix and accurately and conveniently position cuvettes, tubes and glasses relative to the optical bench of the MDR-41 monochromator and the like. The device can also be used in experiments and laboratory work on optics (spectroscopy).

The standard tripod base and the tripod base are known (http://stylab-shop.com/product/shtativ-trenoga_sterjen_600_mm_2566.html) (Fig. 2 shows the standard tripod base).

Known close in technical essence to the proposed (patent RU No. 19368, published August 27, 2001). A physical demonstration tripod containing a base, a rotary stand, a sleeve mounted on it with a rod fixed on it, an object fixing unit, the base is made in the form of two rectangular pipes connected by a jumper with inserts fixed in their cavity, provided in the insertion zone with a pair of through mutually the holes are perpendicular and spaced apart along its length, and the stand is made up of parts connected by an elongated fixing sleeve, while more in the form of a rod with an end ring equipped with fixing screws, or a rod with a physical clamping foot, and the tripod is additionally equipped with a rod with insulated electro-clamping terminals, a suspension bracket with a hook and a clamp.

The disadvantage of this device is the inability to quickly and conveniently change the test tube or glass from one to another without dismantling it in the clamp.

The technical result to which the invention is directed is the fixing of cuvettes, tubes and glasses, as well as their exact and convenient change during the experiment on the optical bench of the MDR-41 monochromator and the like without the use of clamps.

The objective of the utility model is to carry out the functions of a cuvette compartment for a monochromator with a tripod - fixing, accurate and convenient positioning of cuvettes, tubes and glasses of arbitrary shape relative to the optical bench of the MDR-41 monochromator and the like, as well as their quick and convenient change without dismantling in the tripod clamp.

The technical result is achieved by means of a tripod-cuvette compartment for test tubes, cuvettes and beakers, consisting of a metal rod and a three-legged base, moreover, to fix the tubes, beakers and cuvettes, a metal disk is used with centrally symmetrical holes for the tubes made on it and equidistant from each other on the distance is shorter than the diameter of the glasses by radial restrictive bends for placing on it a ditch and glasses, restrictive washers, fixed to the rod with screws.

In fig. 1 is an assembly drawing of a tripod.

In fig. 2 is a drawing of a standard laboratory tripod base tripod.

The proposed tripod is a metal rod with a diameter of 10 mm and a length of 60-80 cm (1), a metal disk (2), with a diameter of about 200 mm and a thickness of 2 mm with a hole with a diameter of 10.1 mm under the rod in the center and centrally symmetric radial holes ( 7) into which tubes can be installed. The diameters of the radial holes (7) are selected so that the main part of the tube passes through them, but its upper broadening does not pass for convenient drainage of the liquid. Also on the disk along its edge are made restrictive bends (8), located centrally symmetrical, their number is not important, so that the distance between adjacent bends should be less than the diameter of the glass. The restrictive washer (3) with a central through hole without thread for the shaft (1) is identical to the washer (4) and has two through holes with threaded screw holes (5): one for fixing the washer with the screw (5, Fig. 1) to metal rod (1), another (6, Fig. 1) - for additional disk fixation. The metal rod (1) is fixed in a standard laboratory three-legged tripod base (Fig. 2).

The device operates as follows

The tripod is located next to the optical bench of the monochromator so that the tube mounted on the disk is on the optical axis of the monochromator. The tubes are inserted into the radial holes (7) of the disk (2) semi-rigidly clamped between the rigidly fixed restrictive washers (3, 4) and the screws (5) rigidly attached to the metal rod (1). Due to the semi-rigid fastening to the restrictive washers (3, 4), the disk is able to rotate around the rod, thereby changing the position of the tubes fixed in it. Thus, the replacement of the desired test tube occurs by rotating the disk around the axis of the rod fixed in the three-legged base, i.e. without dismantling them in the tripod clamps. For glasses and cuvettes, the technical result is achieved similarly, with the only difference being that they are placed on top of the disk, abutting against two adjacent restrictive bends (8) of the disk (2). Thus, it is possible to easily and accurately install and replace glasses or ditches, without clamps, simply changing one glass to another. The accuracy of the position of the glass is achieved by focusing it on the restrictive bends. If necessary, you can additionally fix the disk (2) by screwing a screw similar to the screw (5) into the hole (6). Simplicity and accuracy of positioning when changing the cuvette cups and test tubes is achieved due to the central symmetry of the disk. When the disk rotates, the central metal rod does not change its position, and the holes for the tubes and the restrictive bends for the cuvettes and glasses are located symmetrically centrally, thus, by simply rotating the disk, it is easy to achieve an exact replacement of the glasses one on top of the other, and the shape of the glasses is not important, but the only condition is that they must be the same. Or, when the disk is completely fixed with a screw, replace one glass (cuvette) with another without using clamps, only by pressing them against the restrictive bends (or changing the tubes in the hole of the disk).

Claims (1)

A tripod-cuvette compartment for test tubes, cuvettes and beakers consisting of a metal rod and a three-legged base, characterized in that a metal disk with centrally symmetrical holes for the tubes and equidistant to each other at a distance smaller than the diameter of the glasses, radial restrictive bends for the location on it of the cuvette and glasses, restrictive washers, fixed to the rod with screws.

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