CN202996142U - Reading demonstration apparatus for pointer-type ammeter and voltmeter - Google Patents
Reading demonstration apparatus for pointer-type ammeter and voltmeter Download PDFInfo
- Publication number
- CN202996142U CN202996142U CN 201220734545 CN201220734545U CN202996142U CN 202996142 U CN202996142 U CN 202996142U CN 201220734545 CN201220734545 CN 201220734545 CN 201220734545 U CN201220734545 U CN 201220734545U CN 202996142 U CN202996142 U CN 202996142U
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- panel
- pointer
- index dial
- dial
- reading
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Abstract
The utility model discloses a reading demonstration apparatus for a pointer-type ammeter and a voltmeter. The apparatus comprises a panel and a dial which are arranged together by a knob. A fan-shaped dial window is opened on the panel. The panel is rectangular and the dial is circular. A central hole is opened in a center of the dial. A pointer knob is mounted on the central hole. A pointer position-restricted device is disposed on back of the panel. A range window is opened below the panel. An area for drawing wiring posts is arranged below the range window. A pointer capable of freely rotating is mounted on the central hole of the dial. The dial is provided with two reading areas, comprising an ammeter reading area and a voltmeter reading area respectively. The reading demonstration apparatus for the pointer-type ammeter and the voltmeter provided by the utility model has the advantages of simple structure, low cost, convenient use, strong visuality and convenient range conversion and is beneficial for developing classroom teaching and raising classroom efficiency of teachers.
Description
Technical field
The utility model relates to a kind of apparatus for demonstrating, relate in particular to a kind of phenomenon that present electric current and voltage class demonstration table is separation that overcomes, usually teacher adopts apparatus for demonstrating separately to impart knowledge to students, it is very loaded down with trivial details varying, and also can affect the defective of classroom instruction benefit and a kind of indicator type current meter, the voltage table reading apparatus for demonstrating that provide.
Background technology
Indicator type current meter, voltage table are Middle School Physics chamber Experiments of Electricity instruments commonly used.Indicator type current meter has 0.6A, two ranges of 3A, and voltage table has 3V, two ranges of 15V.The reading of indicator type current meter, voltage table be junior middle school's electricity must learn content, usually teacher adopts apparatus for demonstrating separately to impart knowledge to students, it is very loaded down with trivial details varying, and also can affect the classroom instruction benefit.
The utility model content
It is the phenomenon of separating that technical problem to be solved in the utility model is to overcome present electric current and voltage class demonstration table, usually teacher adopts apparatus for demonstrating separately to impart knowledge to students, it is very loaded down with trivial details varying, and also can affect the defective of classroom instruction benefit and a kind of indicator type current meter, the voltage table reading apparatus for demonstrating that provide.
The utility model solves above-mentioned technical matters by following technical proposals: a kind of indicator type current meter, voltage table reading apparatus for demonstrating, described apparatus for demonstrating comprises panel and index dial, panel and index dial are installed together by a knob, have fan-shaped index dial window on described panel; Described panel is rectangle, described index dial is circular, the center of described index dial has center pit, indicator knob is installed on center pit, and panel back is equipped with the pointer stop, and the below of panel has the range window, the range beneath window is provided with the zone of picture binding post, the pointer that can rotate freely is installed on the center pit of described index dial, and described index dial is provided with two reading zones, is respectively reometer reading zone and voltage table reading regional.
In specific embodiment of the utility model, have two hanging holes of whole device being hung up demonstration above described panel.
Positive progressive effect of the present utility model is: the indicator type current meter that the utility model provides, voltage table reading apparatus for demonstrating are simple in structure, with low cost, easy to use, intuitive is strong, the range conversion is convenient, is conducive to teacher and carries out classroom instruction, improves classroom efficiency.
Description of drawings
Fig. 1 is the structural representation of panel of the present utility model.
Fig. 2 is the structural representation of index dial of the present utility model.
Embodiment
Provide the utility model preferred embodiment below in conjunction with accompanying drawing, to describe the technical solution of the utility model in detail.
Fig. 1 is the structural representation of panel of the present utility model, Fig. 2 is the structural representation of index dial of the present utility model, as shown in Fig. 1-2: a kind of indicator type current meter that the utility model provides, voltage table reading apparatus for demonstrating, described apparatus for demonstrating comprises panel 1 and index dial 2, both are installed together panel 1 and index dial 2 by a knob 9, have fan-shaped index dial window 3 on panel 1; Panel 1 is rectangle, described index dial 2 is circular, the center of index dial 2 has center pit, indicator knob is installed on center pit, and panel 1 back is equipped with pointer stop 6, and the below of panel 1 has range window 7, range window 7 belows are provided with the zone 8 of picture binding post, the pointer 5 that can rotate freely is installed on the center pit of index dial 2, and index dial 2 is provided with two reading zones, is respectively reometer reading zone and voltage table reading regional.
Indicator type current meter, voltage table are Middle School Physics chamber Experiments of Electricity instruments commonly used.Indicator type current meter has 0.6A, two ranges of 3A, and voltage table has 3V, two ranges of 15V.The reading of indicator type current meter, voltage table be junior middle school's electricity must learn content, usually teacher adopts apparatus for demonstrating separately to impart knowledge to students, it is very loaded down with trivial details varying, and also can affect the classroom instruction benefit.
The utility model unites two into one indicator type current meter reading apparatus for demonstrating and pointer voltage meter reading apparatus for demonstrating, and its structure is comprised of parts such as panel, pointer and movable index dials.Panel is vertical rectangle (approximately tens of centimetres of the length of side), hanging hole is put so that hang up in the upper end, the panel middle upper part has to show the fan-like pattern window of ammeter index dial, the below is equipped with three binding posts side by side, the binding post on the left side is black, be marked with on the limit " one " number, two, the right is red, respectively has to show the fenestella of 0.6A, 3A or 3V, 15V range on the limit.There is pointer the back of fan-like pattern window, and the end of pointer is fixed on the circle centre position of the fan-shaped window of panel central authorities, and when the knob that arranges before its panel of turn, pointer can be done in fan-shaped window clockwise or counterclockwise rotation.After panel, fan-shaped window two ends respectively are equipped with the pointer stop means, so that within the pointer slewing area only is limited in the fanlight mouth.The plectane center of being decorated with in opposite directions up and down reometer, voltage table index dial and 0.6,3 and 3,15 printed words is fixed on the rear end in indicator knob axle center, but plectane can sway in same plane.In the time of when the rotation plectane is placed in the fan-shaped window of panel by the reometer index dial in the middle of, the range display window below panel just in time exposes 0.6 and 3 printed words; Plectane rotates 180 when spending again, and panel window shows index dial and the range thereof of voltage table.
This indicator type current meter, voltage table reading apparatus for demonstrating are simple in structure, with low cost, easy to use, and intuitive is strong, and the range conversion is convenient, are conducive to teacher and carry out classroom instruction, improve classroom efficiency.
Above demonstration and described ultimate principle of the present utility model and principal character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that describes in above-described embodiment and instructions just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications; these changes and improvements all fall in claimed the utility model scope, and the claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (2)
1. an indicator type current meter, voltage table reading apparatus for demonstrating, is characterized in that, described apparatus for demonstrating comprises panel and index dial, and panel and index dial are installed together by a knob, have fan-shaped index dial window on described panel; Described panel is rectangle, described index dial is circular, the center of described index dial has center pit, indicator knob is installed on center pit, and panel back is equipped with the pointer stop, and the below of panel has the range window, the range beneath window is provided with the zone of picture binding post, the pointer that can rotate freely is installed on the center pit of described index dial, and described index dial is provided with two reading zones, is respectively reometer reading zone and voltage table reading regional.
2. indicator type current meter according to claim 1, voltage table reading apparatus for demonstrating, is characterized in that, has two hanging holes of whole device being hung up demonstration above described panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220734545 CN202996142U (en) | 2012-12-27 | 2012-12-27 | Reading demonstration apparatus for pointer-type ammeter and voltmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220734545 CN202996142U (en) | 2012-12-27 | 2012-12-27 | Reading demonstration apparatus for pointer-type ammeter and voltmeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202996142U true CN202996142U (en) | 2013-06-12 |
Family
ID=48567289
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220734545 Expired - Fee Related CN202996142U (en) | 2012-12-27 | 2012-12-27 | Reading demonstration apparatus for pointer-type ammeter and voltmeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202996142U (en) |
-
2012
- 2012-12-27 CN CN 201220734545 patent/CN202996142U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130612 Termination date: 20131227 |