CN201444366U - Resilience demonstration instrument - Google Patents
Resilience demonstration instrument Download PDFInfo
- Publication number
- CN201444366U CN201444366U CN200920030806XU CN200920030806U CN201444366U CN 201444366 U CN201444366 U CN 201444366U CN 200920030806X U CN200920030806X U CN 200920030806XU CN 200920030806 U CN200920030806 U CN 200920030806U CN 201444366 U CN201444366 U CN 201444366U
- Authority
- CN
- China
- Prior art keywords
- spring
- demonstration
- resilience
- base
- cross board
- 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
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- Toys (AREA)
Abstract
The utility model relates to a resilience demonstration instrument, which belongs to a teaching appliance for physics. The resilience demonstration instrument is implemented in the following ways that: a bayonet is arranged at the center of the bottom of a base, and is provided with a fixing bolt, a support rod is arranged on the upper side of the base over the bayonet, a cross board is movably arranged on the top of the support rod, a trough is arranged upon one end of the cross board, and a demonstration ball is arranged in the trough; a spring is arranged on the lower side of the other end of the cross board, and the lower end of the spring is connected with the base. When in use, the resilience demonstration instrument is first fixed on a platform, the demonstration ball is then placed in the trough, the end of the cross board, which has the demonstration ball, is pressed downwards, so that the spring is stretched, the cross board is released after the spring is stretched to a certain length, as a result, the demonstration ball is shot out, the spring is restored, and the process can be repeated for multiple times in order to measure the relation between the distance of the shot demonstration ball and the length of the spring. The utility model has the advantages of simple structure, convenient demonstration and low cost, and students can easily comprehend the relation between resilience and deformation, so the utility model is worth popularizing.
Description
Technical field:
The utility model belongs to the physics teaching articles for use, particularly a kind of physics teaching elastic force demonstrator.
Background technology:
At present in physics teaching, the relation demonstration of elastic force and distortion is demonstration instrument intuitively without comparison, and teacher can only explain abstractively, or explains that by drawing teaching efficiency is poor, and the student is beyond affordability.
The utility model content:
The utility model overcomes the problems referred to above deficiency, a kind of elastic force demonstrator is provided, this elastic force demonstrator is achieved in that the bottom centre position at base is provided with bayonet socket, set bolt is arranged on the bayonet socket, be provided with pole above the base directly over bayonet socket, the top movable of pole is provided with transverse slat, is provided with groove above transverse slat one side, is provided with the demonstration ball in groove; Be provided with spring below said transverse slat opposite side, the bottom of spring is connected with base.
When the utility model uses, earlier the elastic force demonstrator is fixed on the lectern, to demonstrate ball then and be placed in the groove, press down the demonstration pommel of transverse slat, spring is stretched, after moving certain-length to, unclamp transverse slat, the demonstration ball is penetrated, and spring restores to the original state, can repeat repeatedly the distance that measurement demonstration ball is penetrated and the relation of the length of spring.
Beneficial effect: the utility model is simple in structure, and demonstration is convenient, is convenient to the relation that the student understands elastic force and distortion, and is with low cost, is worthy to be popularized.
Description of drawings:
Accompanying drawing 1 is a structural representation of the present utility model: 1, transverse slat 2, demonstration ball 3, groove 4, pole 5, base 6, bayonet socket 7, set bolt 8, spring
Embodiment:
1 embodiment is as follows in conjunction with the accompanying drawings: a kind of elastic force demonstrator is made of base 5, bayonet socket 6, pole 4, demonstration ball 2 and spring 8, bottom centre position at base 5 is provided with bayonet socket 6, set bolt 7 is arranged on the bayonet socket 6, be provided with pole 4 above the base 5 directly over bayonet socket 6, the top movable of pole 4 is provided with transverse slat 1, above transverse slat 1 one sides, be provided with groove 3, in groove 3, be provided with demonstration ball 2; Be provided with spring 8 below said transverse slat 1 opposite side, the bottom of spring 8 is connected with base 5.
Claims (1)
1. an elastic force demonstrator is made of base (5), bayonet socket (6), pole (4), demonstration ball (2) and spring (8), it is characterized in that: the bottom centre position at base (5) is provided with bayonet socket (6), set bolt (7) is arranged on the bayonet socket (6), be provided with pole (4) above the base (5) directly over bayonet socket (6), the top movable of pole (4) is provided with transverse slat (1), be provided with groove (3) in the top of transverse slat (1) one side, in groove (3), be provided with demonstration ball (2); Below at said transverse slat (1) opposite side is provided with spring (8), and the bottom of spring (8) is connected with base (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920030806XU CN201444366U (en) | 2009-07-27 | 2009-07-27 | Resilience demonstration instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920030806XU CN201444366U (en) | 2009-07-27 | 2009-07-27 | Resilience demonstration instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201444366U true CN201444366U (en) | 2010-04-28 |
Family
ID=42549047
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920030806XU Expired - Fee Related CN201444366U (en) | 2009-07-27 | 2009-07-27 | Resilience demonstration instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201444366U (en) |
-
2009
- 2009-07-27 CN CN200920030806XU patent/CN201444366U/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: 20100428 Termination date: 20100727 |