CN202563793U

CN202563793U - Cell membrane function demonstrator

Info

Publication number: CN202563793U
Application number: CN2012201015956U
Authority: CN
Inventors: 李志伟
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-03-15
Filing date: 2012-03-15
Publication date: 2012-11-28
Anticipated expiration: 2022-03-15

Abstract

The utility model provides a cell membrane function demonstrator simple in structure and convenient in manufacture, belonging to the technical field of teaching tools. The cell membrane function demonstrator comprises a demonstrator main body including a display screen, and a control circuit. The display screen is structurally characterized in that a cell pattern including cell membrane, cytoplasm and cell nucleus is drawn on the display screen; a display mark consisting of LED (light emitting diode) lights is arranged outside the cell membrane and in the cytoplasm and the cell nucleus. The control circuit includes a counter and a power supply, wherein the output pin of the counter is connected with the display mark; the clock pin of the counter is connected with a signal circuit consisting of a transistor, a capacitor and a resistor.

Description

The cell membrane function demonstration device

Technical field

The utility model is divided by International Patent Classification (IPC) (IPC) and is belonged to physical piece, education; Cryptology; Show; Advertisement; Big type of seal, education or demonstration equipment; Be used to the apparatus of imparting knowledge to students or communicating by letter with blind person, deaf person or mute; Model; Planetarium; Terrestrial globe; Map; The figure watch group, the model that science, medical science or mathematics are used, the device technique field that for example is used to demonstrate with full-size(d), more specifically saying so relates to a kind of cell membrane function demonstration device.

Background technology

Teaching aid is that teaching the time is used for the model, material object, chart, magic lantern etc. of explaining illustration something or other.

Cell membrane (cell membrane) is claimed cytoplasma membrane (plasma membrane) again, is the thin film of cell surface, also is called as epicyte or plasmalemma sometimes.The chemical composition of different biological cell membranes is basic identical, mainly form by lipid, protein and carbohydrate, wherein each component content be about 50%, 42% respectively, 2%-8%.In addition, also contain small amount of moisture, inorganic salts and metallic ion etc. in the cell membrane.

Cell membrane has the important physical function, and environment in the born of the same parents that it had both made cell keep to stablize metabolism can regulate and select material turnover cell again, and the mass exchange between cell and the surrounding environment is to realize through the moving function of the transhipment of cell membrane.

But the substance transportation function of cell membrane is very abstract, is difficult for understanding, and needs a kind of teaching aid to demonstrate, to improve teaching efficiency.

Summary of the invention

The utility model is exactly to the problems referred to above, and a kind of simple in structure, cell membrane function demonstration device of being convenient to make is provided.

In order to realize the above-mentioned purpose of the utility model; The utility model adopts following technical scheme; The utility model comprises the demonstration device main body; The demonstration device main body comprises display screen, be decorated with on its structural feature display screen have cell membrane, tenuigenin and nuclear cell pattern, the explicit identification that cell membrane is outside, tenuigenin and nucleus set inside are made up of the LED lamp; Have control circuit in the demonstration device main body, control circuit comprises counter and power supply, and the output pin of counter links to each other with explicit identification, and the clock pin of counter links to each other with the signal circuit of being made up of triode, electric capacity and resistance.

Described counter adopts the CD4017 decade counter, and described triode adopts 5050 transistors.

The beneficial effect of the utility model:

(1) simple in structure

The demonstration device main body of the utility model has display screen, and the LED on the display screen etc. form explicit identification, has represented the different piece of cell; Therefore, the member that the utility model uses is less, makes easily.

(2) easy to use

The utility model through the control to the light on and off of LED lamp, has been accomplished the demonstration of the mobility status of the inside and outside material of cell membrane in use; Very easy to use.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Fig. 2 is the circuit diagram of the utility model.

In the accompanying drawing, 1 is display screen, and 2 is explicit identification, and 3 is cell membrane, and 4 is nucleus, and 5 is tenuigenin, and 6 is counter.

Embodiment

Clearer for technical matters, technical scheme and beneficial effect that the utility model is solved, below in conjunction with accompanying drawing and embodiment, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.

The utility model comprises the demonstration device main body; The demonstration device main body comprises display screen 1; Be decorated with cell pattern on the display screen 1, the explicit identification 2 that cell membrane 3 outsides, tenuigenin 5 and nucleus 4 set inside are made up of the LED lamp with cell membrane 3, tenuigenin 5 and nucleus 4; Have control circuit in the demonstration device main body, control circuit comprises counter 6 and power supply, and the output pin of counter 6 links to each other with explicit identification 2, and the clock pin of counter 6 links to each other with the signal circuit of being made up of triode, electric capacity and resistance.

Described counter 6 adopts the CD4017 decade counter, and described triode adopts 5050 transistors.

Be with being appreciated that; More than about the specific descriptions of the utility model; Only be used to the utility model is described and be not to be subject to the described technical scheme of the utility model embodiment; Those of ordinary skill in the art should be appreciated that still and can make amendment or be equal to replacement the utility model, to reach identical technique effect; As long as satisfy the use needs, all within the protection domain of the utility model.

Claims

1. cell membrane function demonstration device; Comprise the demonstration device main body; The demonstration device main body comprises display screen (1); It is characterized in that being decorated with on the display screen (1) the cell pattern of have cell membrane (3), tenuigenin (5) and nucleus (4), the explicit identification (2) that cell membrane (3) is outside, tenuigenin (5) and nucleus (4) set inside are made up of the LED lamp; Have control circuit in the demonstration device main body, control circuit comprises counter (6) and power supply, and the output pin of counter (6) links to each other with explicit identification (2), and the clock pin of counter (6) links to each other with the signal circuit of being made up of triode, electric capacity and resistance.

2. cell membrane function demonstration device according to claim 1 is characterized in that described counter (6) adopts the CD4017 decade counter, and described triode adopts 5050 transistors.