CN203910130U - Human body conductive ball - Google Patents
Human body conductive ball Download PDFInfo
- Publication number
- CN203910130U CN203910130U CN201420355676.8U CN201420355676U CN203910130U CN 203910130 U CN203910130 U CN 203910130U CN 201420355676 U CN201420355676 U CN 201420355676U CN 203910130 U CN203910130 U CN 203910130U
- Authority
- CN
- China
- Prior art keywords
- metal contact
- contact end
- human body
- main metal
- base
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Toys (AREA)
Abstract
The utility model discloses a human body conductive ball. The base is provided with a main metal contact end, an auxiliary metal contact end, and a plurality of indicating lamps. A power source is connected with the main metal contact end through a wire. A switch is successively serially connected with the indicating lamps and the auxiliary metal contact end through wires. The power source is serially connected with an amplification circuit. When the human body conductive ball of the utility model is used, what a user needs to do is to put both hands of the user onto the main metal contact end and the auxiliary metal contact end separately, during utilization, both hands of a person can be put onto the main metal contact end and the auxiliary metal contact end separately, or several persons form a circle hand in hand and one hand of the first person and one hand of the last person are put onto the main metal contact end and the auxiliary metal contact end separately, a human body has large resistance, so the current will be depleted when flowing through the human body, by arranging the amplification circuit, the current can be enhanced, and the indicating lamps are still turned on after the current flows through the human body, so that the human body conductive ball can be used to enhance the operational ability and the participation enthusiasm of children, and more intuitively show the human body conductive phenomenon.
Description
Technical field
The utility model relates to a kind of teaching aid, particularly a kind of human-body conduction demonstration device.
Background technology
For the ease of visualize teaching, need various teaching aids to demonstrate various scientific phenomenas at present.Teaching aid is the material object of propagating science and technology, educating artificial object, is scientific and technological medium completely, is indispensable equipment in teenager's scientific and technological activities.The teaching aid of using in scientific and technological activities has object visual and duplicate teaching aid.Teaching aid can also be divided into demonstration with and practice with two kinds.
The most theoretical property of teaching aid of demonstration human-body conduction phenomenon is stronger at present, but lacks intuitive, does not belong to audiovisual aids.Audiovisual aids can make specific knowledge, imagery, for student's perception, understanding and memory Knowledge Creation condition.Intuitively can impel student's concrete perception to combine with abstract thinking, reduce the difficulty of students abstract concept, help it to form clear and definite concept, develop its observation ability and thinking ability, improve student's learning interest and enthusiasm.The apparatus for demonstrating that in reality, special shortage can ocular demonstration human-body conduction phenomenon, make current student particularly at present also just the primary school of stage of development and the student of kindergarten can not be specifically, vivid, by apparatus for demonstrating, understand human-body conduction phenomenon intuitively.
Patent of invention a kind of human-body conduction demonstration device that to disclose the patent No. on existing market be 201010137395.1, this device comprises a base, this base inside is provided with power supply and switch, described power supply is connected by wire with switch, in the upper end of described base, be provided with a Metal Contact end, pilot lamp, one and be arranged to the tinsel of Motor Speedway shape and the metal handle that head is provided with metal ring, described metal ring is nested with on described tinsel and can moves and contacting metal silk not along tinsel; Described power supply connects described tinsel by wire, and described switch is by wire connect successively described pilot lamp and Metal Contact end.Need user to hold metal ring and tinsel touches, thereby make human-body conduction, its implementation process is comparatively complicated for children, is difficult for understanding.
Utility model content
The deficiency existing for prior art, the purpose of this utility model is to provide a kind of human-body conduction ball that shows more intuitively human-body conduction phenomenon that has.
For achieving the above object, the utility model provides following technical scheme: a kind of human-body conduction ball, comprise base, be located at power supply and switch on base, between described power supply and switch, be connected with wire, described base is provided with main Metal Contact end, secondary Metal Contact end, several pilot lamp, described power supply connects described main Metal Contact end by wire, and described switch is by wire connect successively described pilot lamp and described secondary Metal Contact end, and described power supply is in series with amplifying circuit.
By adopting technique scheme, base is provided with main Metal Contact end and secondary Metal Contact end, during use, only user's both hands need be positioned over respectively on main Metal Contact end and secondary Metal Contact end, can connect circuit and open pilot lamp, during use, can be positioned over respectively on main Metal Contact end and secondary Metal Contact end by people's both hands, also can be linked to be hand in hand a circle by several people, with a hand of first man and last people's a hand, be positioned over respectively on main Metal Contact end and secondary Metal Contact end, because human body resistance is excessive, while usually causing electric current to flow through human body, will run out, pilot lamp can not normally be opened, being provided with amplifying circuit after-current strengthens greatly, making it flow through human body rear indicator light still opens, it increases children's manipulative ability and the enthusiasm of participation activity greatly, it has showed human-body conduction phenomenon more intuitively.
The utility model is further set to: described main Metal Contact end and secondary Metal Contact end 8 one end are spherical, and this main Metal Contact end and the secondary Metal Contact end other end are all fixed on base.
By adopting technique scheme, main Metal Contact end and secondary Metal Contact end are fixed on base, can prevent that main Metal Contact end and secondary Metal Contact end from rocking, and Metal Contact end one end is for spherical, spherical comparatively smooth, use procedure children can not make children's hand injured because overexerting.
The utility model is further set to: described base is provided with cylinder, and described cylinder is provided with petal fixed head, and described pilot lamp is fixed on fixed head.
By adopting technique scheme, for increasing the aesthetic measure of instrument, fixed head can be made to other shapes, make it more attract children's eyeball, on cylinder, also can be other shapes herein, allow heart, various cartoon shapes, attract child's eyeball more.
Accompanying drawing explanation
Fig. 1 is the utility model overall diagram;
Fig. 2 is Fig. 1 amplification circuit diagram.
In figure: 1, base; 2, power supply; 3, switch; 4, main Metal Contact end; 5, cylinder; 6, fixed head; 7, pilot lamp; 8, secondary Metal Contact end.
Embodiment
Shown in Fig. 1, a kind of human-body conduction ball of the present embodiment, comprise base 1, be located at power supply 2 and switch 3 on base 1, between described power supply 2 and switch 3, be connected with wire, described base 1 is provided with main Metal Contact end 4, secondary Metal Contact end 8, several pilot lamp 7, described power supply 2 connects described main Metal Contact end 4 by wire, described switch 3 is by wire connect successively described pilot lamp 7 and described secondary Metal Contact end 8, described power supply 2 is in series with amplifying circuit, described main Metal Contact end 4 and secondary Metal Contact end 8 one end are spherical, this main Metal Contact end 4 and secondary Metal Contact end 8 other ends are all fixed on base 1, described base 1 is provided with cylinder 5, described cylinder 5 is provided with petal fixed head, described pilot lamp 7 is fixed on fixed head.
Base 1 is provided with main Metal Contact end 4 and secondary Metal Contact end 8, during use, only user's both hands need be positioned over respectively on main Metal Contact end 4 and secondary Metal Contact end 8, can connect circuit and open pilot lamp 7, during use, can be positioned over respectively on main Metal Contact end 4 and secondary Metal Contact end 8 by people's both hands, also can be linked to be hand in hand a circle by several people, with a hand of first man and last people's a hand, be positioned over respectively on main Metal Contact end 4 and secondary Metal Contact end 8, the conductor flow that electric current passes through a people or a plurality of people from main Metal Contact end 4 is to secondary Metal Contact end 8, power supply 2 is connected, pilot lamp 7 sends light, it increases children's manipulative ability and the enthusiasm of participation activity greatly, it has showed human-body conduction phenomenon more intuitively.
With reference to Fig. 2, because human body resistance is excessive, if pilot lamp is directly connected with human body, divide that to be depressed into the voltage of pilot lamp too small, deficiency is so that pilot lamp is luminous, therefore be provided with amplifying circuit, it comprises testing power supply B1 and power supply B2, after testing power supply B1 series connection human body, little electric current flows into the base stage of triode Q1, triode Q1 adopts NPN type triode, the little electric current being flowed into by base stage, control the large electric current of collector, suitable steady operation point is set, make triode be operated in amplification region, electric current is played to the effect of amplification, power supply serial connection K switch, after pilot lamp LED1 and collector resistance R1, be connected to the collector of triode Q1, between collector and base stage, be also connected with bigoted resistance R 2, the grounded emitter of triode Q1, make thus pilot lamp normally luminous.
Metal Contact end one end is for spherical, spherical comparatively smooth, and use procedure makes children can because overexerting, not make children's hand injured, for increasing the aesthetic measure of instrument, fixed head can be made to other shapes, makes it more attract children's eyeball.
The above is only preferred implementation of the present utility model, and protection domain of the present utility model is also not only confined to above-described embodiment, and all technical schemes belonging under the utility model thinking all belong to protection domain of the present utility model.It should be pointed out that for those skilled in the art, in the some improvements and modifications that do not depart under the utility model principle prerequisite, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (3)
1. a human-body conduction ball, comprise base, be located at power supply and switch on base, between described power supply and switch, be connected with wire, it is characterized in that: described base is provided with main Metal Contact end, secondary Metal Contact end, several pilot lamp, described power supply connects described main Metal Contact end by wire, described switch is by wire connect successively described pilot lamp and described secondary Metal Contact end, and described power supply is in series with amplifying circuit.
2. human-body conduction ball according to claim 1, is characterized in that: described main Metal Contact end one end and secondary Metal Contact end one end are spherical, and this main Metal Contact end other end and the secondary Metal Contact end other end are all fixed on base.
3. human-body conduction ball according to claim 1 and 2, is characterized in that: described base is provided with cylinder, and described cylinder is provided with petal fixed head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420355676.8U CN203910130U (en) | 2014-06-28 | 2014-06-28 | Human body conductive ball |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420355676.8U CN203910130U (en) | 2014-06-28 | 2014-06-28 | Human body conductive ball |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203910130U true CN203910130U (en) | 2014-10-29 |
Family
ID=51784387
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420355676.8U Expired - Fee Related CN203910130U (en) | 2014-06-28 | 2014-06-28 | Human body conductive ball |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203910130U (en) |
-
2014
- 2014-06-28 CN CN201420355676.8U patent/CN203910130U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202159452U (en) | Hand-operated acupuncture photoelectric sensing human body acupuncture point model | |
| CN201965826U (en) | Demonstration instrument for human body conductivity and low-voltage electric shock | |
| CN205487081U (en) | Safety utilization of electric power demonstration teaching aid | |
| CN201007864Y (en) | Teaching model for simulating human body electric shock | |
| CN203910130U (en) | Human body conductive ball | |
| CN206194277U (en) | Special touch luminous globe of geography teaching of junior middle school | |
| CN207909397U (en) | Portable heart-lung resuscitation training model | |
| CN202505707U (en) | Eye muscle adjuster | |
| CN204537592U (en) | A kind of Chinese medicine acupuncture teaching and training device | |
| CN106710389A (en) | Home electric shock demonstration device | |
| CN208092998U (en) | A kind of digital display module for teaching programming plate | |
| CN201667265U (en) | Displaying sliding rheostat used for testing | |
| CN212516257U (en) | Demonstrator for simulating human body electric shock | |
| CN201910186U (en) | Safety electricity utilization simulation teaching board | |
| CN103824489A (en) | Wind power tester | |
| CN110533989A (en) | A kind of Music teaching aid note simulation training device | |
| CN103398322A (en) | Refreshing learning lamp | |
| CN202838766U (en) | Fluorescent lamp test demonstration device | |
| CN204257065U (en) | Wet-out phenomenon demonstrator | |
| CN105944376B (en) | Intelligent developing type touch-control dance rug | |
| CN111081076B (en) | Auxiliary system for teaching animation motion law and using method thereof | |
| CN213247262U (en) | Wearable electric shock bracelet of intelligence | |
| CN208339067U (en) | A kind of rotary dial formula pendant | |
| CN202332044U (en) | Nose detection training model | |
| CN206657505U (en) | A kind of law teaching aid |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141029 Termination date: 20170628 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |