CN2364517Y

CN2364517Y - Electrochemistry demonstrator

Info

Publication number: CN2364517Y
Application number: CN 99227205
Authority: CN
Inventors: 丁非
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-01-29
Filing date: 1999-01-29
Publication date: 2000-02-16
Anticipated expiration: 2009-01-29

Abstract

The utility model relates to a teaching demonstrator for carrying out electrochemistry experiments in secondary schools. The utility model is composed of a casing, a display screen, control units, drawing plates, etc. The utility model is characterized in that the display screen which is composed of a plurality of sets of light-emitting diodes is installed on a panel of the casing. Since the drawing plates are arranged in cavity tracks at the front part of the casing, various experiments can be carried out conveniently, and light sources can be cleaned and protected. Since a plurality of light sources are arranged on a platform on the cavity casing, a plurality of groups of Dindarl demonstration experiments can be carried out thereby. The utility model has the advantages of one demonstrator with many functions, visual reflection of experimental results and great practical value.

Description

A kind of galvanochemistry demonstrator

The utility model relates to a kind of demonstrator that carries out electrochemistry experiment in a kind of middle school teaching.

Relevant by retrieval patent documentation does not retrieve the galvanochemistry demonstrator identical with the utility model structure at present as yet.Used galvanochemistry demonstrator in the existing high school chemistry teaching, because its structural reason, general its function is all more single, and the experiment of complex operation, particularly salt solusion in the experiment, whenever finish one, do second again after all will washing electrode, make classroom rhythm loose, and if do demonstration with low-voltage dc power supply, bulb can't be luminous when the weak electrolyte solution conduction resemble HAC was tested, and is difficult to the experiment effect that reaches desirable.China's patent " 88205097 " discloses a kind of " three function acousto-optics show the ionic conduction tester ", this tester mainly is made up of red green two groups of light emitting diodes and integrated circuit, driving triode, by acousto-optic electrolyte and nonelectrolyte is compared experiment.

The purpose of this utility model is that a kind of a multi-purpose instrument that has will be provided, and can carry out many group experiment contrasts and easy and simple to handle, reflects a kind of intuitively galvanochemistry demonstrator.

Technical characterictic of the present utility model is: on the basis of considering compact conformation, be designed to the galvanochemistry demonstrator formed by housing, display screen, control assembly, light source, electrod assembly, pumping board, it is characterized in that: be provided with display screen on the panel of housing, display screen is connected by lead with control assembly; Control assembly is packed in screw in the inner chamber of housing, is connected with lead between control assembly and the electrod assembly.In the track of the front pocket of housing, be provided with pumping board; On housing, be provided with several light sources below the pumping board; On the carrier frame plate on the housing, be provided with several to electrod assembly; On housing, also be provided with a support that is used to support the electrophoresis pipe.Described display screen is made up of the array light emitting diode; Platform in the described housing cavity is provided with the light hole with the light source equal number.During use, when needs are done the isoconcentration strong, weak electricity and are separated the comparative experiments of matter solution conductivity performance, separate the beaker of matter solution and be positioned on the pumping board filling several strong, weak electricity that prepare, each group electrode is slowly inserted in the corresponding beaker, this moment the strong electrolyte correspondence number of elements of this group lumination of light emitting diode obviously more than weak electrolyte, and show along with electrolytical power.When needs carry out the Tyndall phenomenon demonstration, extract that pumping board will fill the different colloids that prepare or the sample examination beaker of solution places on the light hole of housing cavity platform out, open its corresponding light source switch, thereby observe " path " that a light is arranged in the beaker that holds colloid, then do not have " path " phenomenon in the beaker of splendid attire solution; When carrying out the primary element experimental demonstration, with primary element electromotive force set on the two poles of the earth of primary element and the housing+,-gate terminal is connected, if the primary element electrode matches, then lumination of light emitting diode can be judged the primary element positive and negative electrode in view of the above; When needs carry out the primary element electromotive force size comparative experiments of different electrode materials, positive and negative electrode with primary element, respectively with housing on set primary element electromotive force+,-utmost point connection terminal is connected, open the primary element switch, at this moment can see the primary element correspondence light-emitting diode group luminous number of elements, thereby can compare; When carrying out electrochemistry experiments such as electrophoresis, plating, electrolysis when needs, as long as open the power switch on the case panel, regulate required direct supply, thereby can carry out electrochemistry experiment, the electrophoresis pipe holder that is provided with on the housing is provided with for support test tube when doing electrophoresis experiment.

The utility model has the advantages that:, carry out various experiments thereby can place beaker easily, and can play the cleaning protective effect light source owing to be provided with pumping board; Because the platform in the housing cavity is provided with several light sources, thereby can carry out many group dindar lecture experiments simultaneously; Because display screen is made up of the array light emitting diode, thereby can experimentize comparison easily; Because compact conformation has the function of a multi-purpose instrument, and easy and simple to handle, the experimental result reflection is directly perceived, so very big practical and popularizing value is arranged.

Below with reference to description of drawings embodiment of the present utility model:

Accompanying drawing 1 is the structural representation of a kind of galvanochemistry demonstrator of the utility model.

Accompanying drawing 2 is electrical schematic diagrams of a kind of galvanochemistry demonstrator.

With reference to accompanying drawing 1, be fixed with display screen 2 on the panel of housing 1, display screen 2 is made up of 5 groups of light emitting diodes, and every group of effective lead of light-emitting diodes is connected with control assembly 3, control assembly 3 usefulness screws are packed in the inner chamber of housing 1, are connected with lead between control assembly 3 and the electrod assembly 5; Be fitted with pumping board 6 in the track of the front pocket of housing 1, pumping board 6 can be twitched along the track of housing 1 front pocket; Below the cavity platform of housing 1, be fixed with five light sources 4; Be processed with five light holes 9 on the platform in housing 1 cavity; Be placed with carrier frame plate 7 in the cavity on housing 1, on carrier frame plate 7, be provided with five pairs of electrod assemblies 5.On the panel of housing 1, also be fixed with a support 8 that is used to support the electrophoresis pipe.

With reference to accompanying drawing 2, whole galvanochemistry instrument comprises dindar experimental circuit 10, dc output circuit 11, electric conductivity display circuit 12.

Claims

1, a kind of galvanochemistry demonstrator, it is made up of housing [1], display screen [2], control assembly [3], light source [4], electrod assembly [5], pumping board [6], it is characterized in that: be provided with display screen [2] on the panel of housing [1], display screen [2] is connected by lead with control assembly [3]; Control assembly [3] is packed in screw in the inner chamber of housing [1], is connected with lead between control assembly [3] and the electrod assembly [5]; In the track of the front pocket of housing [1], be provided with pumping board [6]; Below going up pumping board [6], housing [1] is provided with several light sources [4]; On the carrier frame plate [7] on the housing [1], be provided with severally, on housing [1], also be provided with a support [8] that is used to support the electrophoresis pipe electrod assembly [5].

2, galvanochemistry demonstrator according to claim 1 is characterized in that: described display screen [2] is made up of the array light emitting diode.

3, galvanochemistry demonstrator according to claim 1 is characterized in that: the platform in described housing [1] cavity is provided with the light hole [9] with light source [4] equal number.