CN201034932Y - Digital display polarimeter with basket type submerged sample delivery mechanism - Google Patents

Abstract

The utility model relates to a digital display polarimeter with a basket type sample lifting transporting mechanism, belonging to optical instrument fields. Because leakage is uneasy to fully avoid, the bottom of digital display polarimeter sample room is often infiltrated and corroded by various organic and inorganic solutions. The scheme changes the sample room structure of the digital display polarimeter and provides a digital display polarimeter whose sample room is convenient to clean and maintenance. The structure of the sample room is composed by a basket type sample transporting mechanism and a well-shaped test storehouse, the basket type sample transporting mechanism is composed by a panel, an object stage bottom plate and a connector, the connector is simultaneously connected with the panel and the object stage bottom plate, the object stage bottom plate has a concave groove, the panel is equipped with a handle, the object stage bottom plate is disposed in the well-shaped test storehouse. The basket type sample transporting mechanism can be momentarily demounted to do individual cleaning treatment. So the sample room is convenient to clean and maintenance.

Description

Digital display polarimeter with basket type submerged sample delivery mechanism

technical field

The utility model relates to a digital display polarimeter with a basket-type submerged sample delivery mechanism, which belongs to the field of optical instruments.

Background technique

A polarimeter is an instrument used to measure the direction and magnitude of the optical rotation of an optically active substance.

There are two main types of common polarimeters: disc polarimeters, and digital display automatic polarimeters; the latter is more advanced, and the latter type of polarimeters is commonly used in laboratories.

There are many brands of digital display automatic polarimeters on the market. They are similar in shape, most of them are box-shaped. Except for the automatic reading and display mechanism, the other main structural components and the differences between the main structural components are different. The installation position relationship or assembly relationship or connection relationship is basically the same; among them, the sample chamber is a necessary component that all brand products must have. optical test tube. The spatial volume of the sample chamber is usually much larger than that of the optical cuvette. Products belonging to the category of digital display automatic polarimeters are often called digital display automatic polarimeters, automatic polarimeters, automatic polarimeters, semi-automatic polarimeters, digital automatic polarimeters, digital polarimeters, and digital polarimeters. , Digital polarimeter. Information such as principle introductions, circuit diagrams, installation position diagrams or assembly diagrams or connection diagrams of major structural components of each brand's products can be obtained directly from relevant manufacturers or downloaded online; in short, "digital The technical meaning of the term "automatic polarimeter" is well known.

In this case, the digital display automatic polarimeter is referred to as the digital display polarimeter for short.

Digital polarimeters are commonly used teaching and scientific research instruments in university chemistry laboratories.

According to the direction and size of the measured optical rotation, the concentration and purity of the related substance solution can be determined, and it can be used as an important basis for judging the molecular structure of the organic substance. The optical rotation of an optically active substance mainly depends on the structure of the substance itself. In addition, it is also related to the thickness of the light passing through the substance, as well as the wavelength and temperature of the light used for measurement. When measured at a certain temperature, wavelength and solvent, the specific optical rotation of various optically active substances is a certain value, which can be used to observe the optical rotation of these substances. By observing the change of optical rotation of the measured system during the reaction process, it can also be used. Observe the progress of the reaction.

In the process of using a certain brand of digital display polarimeter for chemical experiment teaching, the designer of this case noticed that due to the unavoidable leakage, the bottom of the sample chamber of the digital display polarimeter is often infiltrated by various organic and inorganic solutions. Corrosion. Compared with other parts of the instrument, the bottom of the sample chamber of the digital display polarimeter is obviously corroded; the digital display polarimeter that has not been used for a long time in experimental teaching has a bright appearance, but the inside of the sample chamber has been damaged. Decayed. The reason is that the material of the sample chamber components is only painted thin iron plate or painted thin steel plate, and the general paint coating is difficult to resist multiple infiltration, swelling and erosion of various organic and inorganic solutions; The sample chamber of the instrument is deeply sunken inside the instrument and adopts a fixed and non-removable structure. This structure is not convenient for cleaning and maintenance, which obviously promotes the development of corrosion at the bottom of the sample chamber.

Utility model content

The technical problem to be solved by the utility model is to change the sample chamber structure of the digital display polarimeter, and develop a digital display polarimeter whose sample chamber structure is convenient for cleaning and maintenance.

The utility model solves the technical problem through the following scheme. The device provided by the scheme is a digital display polarimeter with a basket-type submerged sample delivery mechanism. The digital display polarimeter is a digital display automatic polarimeter. The structure of the polarimeter contains a sample chamber. The special feature of this scheme is that the structure of the sample chamber is composed of a sample feeder and a test chamber. The test chamber is in the shape of a well. On the top surface, there are two windows used as polarized light passages in the test chamber, and the structural positions of the two windows are respectively on the two opposite side walls in the test chamber, and the shape of the sample transmitter is similar to In the shape of a basket, the sample feeder is composed of a panel, a loading base and a connecting piece, and the connecting piece is connected to the panel and the loading base at the same time. The loading base has a concave groove structure, and the panel is equipped with a handle , and, the placement position of the object base plate is inside the test chamber, and the sample feeder is a movable component. The connecting piece that connects the panel equipped with the handle and the loading bottom plate into a basket-shaped sampler can be any object that can achieve the connecting purpose, and the connecting piece is for example: a plate-shaped connecting piece, a rigid Rope Connectors, Rigid Post Connectors, Rigid Frame Connectors, or Rigid Mesh Connectors. The concave groove on the object base plate is used to place the polarimeter sample tube. When in use, the polarimeter sample tube is first placed in the concave groove, and then the loading base plate is submerged to the inside of the well-shaped test chamber, and then the optical rotation measurement and reading can be performed. The object-loading base plate is only submerged and placed inside the well-shaped test chamber, or in other words, the object-loading base plate is only placed inside the well-shaped test chamber; the entire basket-shaped sampler together with the object-loading base plate can It can be unloaded or taken out or drawn out at any time, so the experimenter can easily clean the basket-shaped sampler separately from the main body of the instrument. The sample chamber is an essential part of the digital display polarimeter, and the digital display polarimeter with the sample chamber structure described in this case is of course also a digital display automatic polarimeter.

The utility model has the advantage that the basket-shaped sample feeder in the structure can be unloaded at any time, so the experimenter can conveniently clean the basket-shaped sample feeder outside the main body of the instrument. This is a sample chamber structure that is easy to clean and maintain.

Description of drawings

Fig. 1 (comprising Fig. 1a, Fig. 1b, Fig. 1c) schematically outlines the digital display polarimeter in the prior art, wherein Fig. 1a is a schematic diagram of the outline, Fig. 1b illustrates the position of the sample chamber and its perspective structure, and Fig. 1c illustrates The state of the sample chamber with the cover open.

Fig. 2 (comprising Fig. 2a, Fig. 2b, Fig. 2c, Fig. 2d, Fig. 2e, Fig. 2f) is an embodiment of the digital display polarimeter containing the basket type submerged sample delivery mechanism described in this case, wherein Fig. 2a shows its The appearance of the instrument, Figure 2b shows the appearance of the instrument when the basket-shaped sample feeder is about to approach or is about to move away from its placement position, and Figure 2c shows the appearance of the remaining part of the digital display polarimeter after the basket-shaped sample feeder is completely removed, Figure 2d shows the perspective structure of the well-shaped test chamber, Figure 2e shows the appearance of the basket-shaped sample feeder when it is removed and placed alone, and Figure 2f shows the perspective structure of the basket-shaped sample feeder when it is removed and placed alone.

In the figure, 1 is the digital display polarimeter of the embodiment of the case, 2 is the operation keyboard, 3 is the reading display window, 4 is the basket-shaped sample feeder, 5 is the handle installed on the panel of the basket-shaped sample feeder, and 6 is the load cell. Object bottom plate, 7 is a concave groove on the object bottom plate, 8 is a well-shaped test chamber, and 9, 10 are two windows used as polarized light channels respectively.

Detailed ways

In the specific embodiment shown in Fig. 2 (including Fig. 2a, Fig. 2b, Fig. 2c, Fig. 2d, Fig. 2e, Fig. 2f), the sample chamber structure of the digital display polarimeter 1 is composed of a basket-shaped sample feeder 4 and a well-shaped test The chamber 8 is composed of two parts. The opening position of the well-shaped test chamber 8 is on the top surface of the digital display polarimeter 1. In the well-shaped test chamber 8, there are windows 9 and 10 used as polarized light channels. The structural positions of the window 9 and the window 10 Respectively, on the opposite side walls of the well-shaped test chamber 8, the shape of the basket-shaped sample feeder 4 is similar to the shape of a basket. The basket-shaped sample feeder 4 is composed of a panel, a loading bottom plate 6 and a connecting piece. Connect the panel and the loading base plate 6 at the same time. The concave groove 7 is arranged on the loading base plate 6. The handle 5 is installed on the panel. The placement position of the loading base plate 6 is in the inside of the well-shaped test chamber 8. Sampler 4 is a movable and detachable component. The connecting piece that connects the panel equipped with the handle 5 and the loading base plate 6 into a basket-shaped sample feeder 4 can be any object that can achieve the connecting purpose, and the connecting piece is for example: a plate-shaped connecting piece , rigid rope-like connectors, rigid column-like connectors, rigid frame-like connectors or rigid mesh-like connectors; the connector in the example of this case is a plate-like connector. The upright plate-shaped connector connects the panel equipped with the handle 5 and the loading bottom plate 6 to form a basket-shaped sample feeder 4 . The basket-shaped sample feeder 4 can be dismounted at any time, so the user can conveniently clean the basket-shaped sample feeder 4 outside the main body of the instrument.

Claims (1)

1. contain the latent digital display polarimeter that falls sample feeding mechanism of basket type, this digital display polarimeter is the automatic polarimeter of digital display type, contain the sample chamber in the structure of this digital display polarimeter, it is characterized in that, the structure of this sample chamber is made up of sample presentation device and test storehouse two parts, the test storehouse is well shape, the aperture position in test storehouse is the top surface at the digital display polarimeter, two windows as the polarized light passage are arranged in the test storehouse, and the locations of structures of two described windows is respectively in the test storehouse on the relative sidewall in two sides, and, the profile of sample presentation device is similar to the hand basket shape, the sample presentation device is made of panel and loading base plate and web member, and described web member connects panel and loading base plate simultaneously, and the Baltimore groove structure is arranged on the described loading base plate, and, be equiped with handle on the described panel, and the riding position of described loading base plate is the inside in the test storehouse, and the sample presentation device is movable member.

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