CN202601041U - Demonstrating device for physical teaching - Google Patents
Demonstrating device for physical teaching Download PDFInfo
- Publication number
- CN202601041U CN202601041U CN 201220307265 CN201220307265U CN202601041U CN 202601041 U CN202601041 U CN 202601041U CN 201220307265 CN201220307265 CN 201220307265 CN 201220307265 U CN201220307265 U CN 201220307265U CN 202601041 U CN202601041 U CN 202601041U
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- China
- Prior art keywords
- power supply
- test tube
- supporting
- contact
- support panel
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Abstract
The utility model relates to a demonstrating device for physical teaching, which comprises a supporting panel, wherein a supporting plate is arranged on the lower part of the supporting panel; a supporting rod and two supporting bases are fixedly connected with the supporting plate; wafers and a copper rod are arranged on the supporting bases; a first alcohol burner is arranged on the lower part of the copper rod; a test tube is arranged on the supporting rod; electric conductive liquid is arranged in the test tube; a second alcohol burner is arranged on the lower part of the test tube; a power supply is arranged on the supporting panel; a cathode of the power supply is respectively in electric connection with the electric conductive liquid in the test tube and the wafer on one of the supporting bases; an anode of the power supply is respectively in electric connection with the test tube and the wafer on the other supporting base; a first indicator lamp and a first switch are serially connected with a lead between the cathode of the power supply and the electric conductive liquid in the test tube; a second indicator lamp is arranged on the lead between the cathode of the power supply and one wafer; and a second switch is arranged on the lead between the anode of the power supply and the other wafer. The demonstrating device can be used for directly demonstrating the thermal expansion and cold contraction principle of solid or liquid, so that the students can easily understand the principle.
Description
Technical field
The utility model relates to a kind of teaching and uses device, specifically relates to a kind of physics teaching and uses apparatus for demonstrating.
Background technology
At present, when the explanation physics lesson is about principle of expanding with heat and contracting with cold in teaching, because this principle is more abstract; Beyond one's depth, teaching efficiency is bad, and the student is difficult to directly detect by an unaided eye solid or the variation of liquid when being heated and catch a cold; Can only show through experiment; Present employed experimental provision is to carry out on the table mostly, and student far away is difficult for observing from laboratory table, and experiment effect is relatively poor.
The utility model content
The utility model problem to be solved provides a kind of principle of expanding with heat and contracting with cold that can intuitively show solid or liquid, and experiment and the good physics teaching of teaching efficiency are used apparatus for demonstrating.
For addressing the above problem, the technical scheme that the utility model adopted is: a kind of physics teaching is used apparatus for demonstrating, comprises support panel; The top of said support panel is provided with two hangers, and the bottom of said support panel is provided with back up pad, is fixedly connected with support bar and two bearings on the said back up pad; Said bearing is provided with contact and copper rod, and the bottom of said copper rod is provided with first spirit lamp, and an end of said copper rod contacts with one of them contact; Has the gap between the other end of said copper rod and the another one contact; Said support bar is provided with clip, and said clip is provided with test tube, the said conducting liquid that in vitro is provided with; The bottom of said test tube is provided with second spirit lamp; Said support panel is provided with power supply, the negative pole of said power supply respectively with invisible spectro conducting liquid and one of them bearing on contact be electrically connected, the positive pole of said power supply respectively with test tube and another one bearing on contact be electrically connected; The negative pole of said power supply is provided with first pilot lamp and first switch of connecting with lead between the invisible spectro conducting liquid; The negative pole and the lead between the contact of said power supply are provided with second pilot lamp, and the positive pole of said power supply and the lead between the contact are provided with second switch, and the end that the positive pole of said power supply is connected with test tube is positioned at the top of conducting liquid.
A kind of concrete prioritization scheme, the top of said support panel is provided with handle.
A kind of concrete prioritization scheme, said back up pad is provided with baffle plate.
A kind of concrete prioritization scheme, the top of said support panel is provided with geometrical clamp, and said geometrical clamp is provided with teacher's pointer.
The utility model is taked above technical scheme, has the following advantages: during use, can through scrape that ear hangs over support panel on the blackboard or wall on, distance student far away be easy to observe, and improved teaching and experiment effect greatly.This experimental demonstration device can intuitively show the principle of expanding with heat and contracting with cold of solid or liquid, and student's easy to understand is with deep impression.
Below in conjunction with accompanying drawing and embodiment the utility model is described further.
Description of drawings
Accompanying drawing be among the utility model embodiment a kind of physics teaching with the structural representation of apparatus for demonstrating.
Among the figure:
Embodiment
Embodiment: shown in accompanying drawing, a kind of physics teaching is used apparatus for demonstrating, comprises support panel 1; The top of support panel 1 is provided with two hangers 2, makes things convenient for the suspension of support panel 1, and the bottom of support panel 1 is provided with back up pad 20; Be fixedly connected with support bar 14 and two bearings 9 on the back up pad 20, bearing 9 is provided with contact 8 and copper rod 11, and the bottom of copper rod 11 is provided with first spirit lamp 12; One end of copper rod 11 contacts with one of them contact 8, has the gap between the other end of copper rod 11 and the another one contact 8, and support bar 14 is provided with clip 16; Clip 16 is provided with test tube 15; Be provided with conducting liquid in the test tube 15, the bottom of test tube 15 is provided with second spirit lamp 13, and support panel 1 is provided with power supply 6; The negative pole of power supply 6 respectively with test tube 15 in conducting liquid be electrically connected with contact 8 on one of them bearing 9; The positive pole of power supply 6 is electrically connected with test tube 15 and contact 8 on the another one bearing 9 respectively, and the lead between the interior conducting liquid of the negative pole of power supply 6 and test tube 15 is provided with first pilot lamp 3 and first switch 5 of connecting, and the lead between the negative pole of power supply 6 and the contact 8 is provided with second pilot lamp 7; Lead between the positive pole of power supply 6 and the contact 8 is provided with second switch 17, and the end that the positive pole of said power supply 6 is connected with test tube 15 is positioned at the top of conducting liquid.
The top of support panel 1 is provided with handle 4, makes things convenient for carrying of support panel 1, and back up pad 20 is provided with baffle plate 10.
The top of support panel 1 is provided with geometrical clamp 18, and said geometrical clamp 18 is provided with teacher's pointer 19, uses during convenient the teaching.
Claims (4)
1. a physics teaching is used apparatus for demonstrating; Comprise support panel (1); It is characterized in that: the top of said support panel (1) is provided with two hangers (2); The bottom of said support panel (1) is provided with back up pad (20), is fixedly connected with support bar (14) and two bearings (9) on the said back up pad (20), and said bearing (9) is provided with contact (8) and copper rod (11); The bottom of said copper rod (11) is provided with first spirit lamp (12); One end of said copper rod (11) contacts with one of them contact (8), has the gap between the other end of said copper rod (11) and the another one contact (8), and said support bar (14) is provided with clip (16); Said clip (16) is provided with test tube (15); Said test tube is provided with conducting liquid in (15), and the bottom of said test tube (15) is provided with second spirit lamp (13), and said support panel (1) is provided with power supply (6); The negative pole of said power supply (6) respectively with test tube (15) in conducting liquid and one of them bearing (9) on contact (8) be electrically connected; The positive pole of said power supply (6) respectively with test tube (15) and another one bearing (9) on contact (8) be electrically connected, the lead between the conducting liquid in the negative pole of said power supply (6) and the test tube (15) is provided with first pilot lamp (3) and first switch (5) of connecting, the lead between the negative pole of said power supply (6) and the contact (8) is provided with second pilot lamp (7); Lead between the positive pole of said power supply (6) and the contact (8) is provided with second switch (17), and the end that the positive pole of said power supply (6) is connected with test tube (15) is positioned at the top of conducting liquid.
2. a kind of physics teaching as claimed in claim 1 is used apparatus for demonstrating, it is characterized in that: the top of said support panel (1) is provided with handle (4).
3. a kind of physics teaching as claimed in claim 1 is used apparatus for demonstrating, it is characterized in that: said back up pad (20) is provided with baffle plate (10).
4. a kind of physics teaching as claimed in claim 1 is used apparatus for demonstrating, it is characterized in that: the top of said support panel (1) is provided with geometrical clamp (18), and said geometrical clamp (18) is provided with teacher's pointer (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220307265 CN202601041U (en) | 2012-06-18 | 2012-06-18 | Demonstrating device for physical teaching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220307265 CN202601041U (en) | 2012-06-18 | 2012-06-18 | Demonstrating device for physical teaching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202601041U true CN202601041U (en) | 2012-12-12 |
Family
ID=47318569
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220307265 Expired - Fee Related CN202601041U (en) | 2012-06-18 | 2012-06-18 | Demonstrating device for physical teaching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202601041U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109147508A (en) * | 2018-09-17 | 2019-01-04 | 胡兴源 | One kind is expanded with heat and contract with cold and pyrocondensation cold expanding experimental demonstration device |
-
2012
- 2012-06-18 CN CN 201220307265 patent/CN202601041U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109147508A (en) * | 2018-09-17 | 2019-01-04 | 胡兴源 | One kind is expanded with heat and contract with cold and pyrocondensation cold expanding experimental demonstration device |
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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: 20121212 Termination date: 20130618 |