CN204965856U - Elasticity demonstration instrument used for physics teaching - Google Patents
Elasticity demonstration instrument used for physics teaching Download PDFInfo
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- CN204965856U CN204965856U CN201520778272.4U CN201520778272U CN204965856U CN 204965856 U CN204965856 U CN 204965856U CN 201520778272 U CN201520778272 U CN 201520778272U CN 204965856 U CN204965856 U CN 204965856U
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- base
- elastic force
- spring
- elasticity
- force seat
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Abstract
The utility model discloses an elasticity demonstration instrument used for physics teaching, include the base, fix the first couple that stand, elasticity seat and the face down of elasticity foot stall on the base were installed, be fixed with the ruler of taking the scale on the base, be equipped with the round hole corresponding with the stand on the elasticity seat, the stand inserts in the corresponding round hole, the spring has been cup jointed on the stand of elasticity seat below, the one end and the elasticity seat of spring are connected, and the other end is connected with the base, install the second couple corresponding with first couple on the base, the second couple articulates on the base, the second couple is located the one end of base and the one end of push rod articulates, the symmetry is equipped with two ball holes on the elasticity seat, the ball is downthehole places springy ball. The uniformity of at every turn testing has been guaranteed through the original state of two couple location lecture experiments to this kind of demonstration appearance, the deflection that simultaneously can quantitative analysis spring and the relation of elasticity size.
Description
Technical field
The utility model relates to a kind of elasticity demonstration instrument for physics teaching.
Background technology
At present, in physics teaching practice, concepts many on textbook and law all need to carry out demonstrating and proving by experiment, so need to do many experiments in physical teaching course, understand more intuitively to meet student and grasp knowledge.As in the elastic deformation of spring and the teaching of elastic force, due to not demonstration instrument intuitively, teacher can only abstractly explain, student's indigestion, and effect of giving lessons is poor.In addition, theory explaination cannot allow student observe the size of pulling force intuitively to the impact of the distortion of spring, and the size of elastic force that camber of spring produces, these problems only can be imagined by student, dry as dust, indigestion, reduces learning interest and the quality of instruction of student.
China Patent Publication No. is CN202495180, authorized announcement date is that the utility model instructions on October 17th, 2012 discloses " a kind of spring force demonstration device ", this utility model comprises base, be fixed on column on base and elastic force seat, described elastic force seat is provided with circular hole, described column is inserted in circular hole, column below described elastic force seat is socketed with spring, the top of described spring is fixedly connected with elastic force seat, bottom is fixed on base, the left and right sides of described elastic force seat is equipped with a ball, is placed with bouncing ball in described ball; Described base is also fixed with a ruler vertically placed, described ruler is provided with length scale.The beneficial effect that this utility model realizes is that (1) structure is simple; (2) elastic force of spring and the relation of its distortion can be demonstrated out intuitively; (3) base is also fixed with a ruler vertically placed, ruler is provided with length scale, by the length scale on ruler, the height that the quantitative deflection observing spring-compressed of energy and bouncing ball are upspring, illustrates the deflection of spring and the relation of elastic force further.But this utility model by estimating the length of spring-compressed, can only can only illustrate the deflection of spring and the relation of elastic force qualitatively, and when testing, armrest unclamps elastic force seat, and each experiment has certain difference, can not ensure the accuracy demonstrated simultaneously.
Utility model content
The utility model is in order to solve the problem, propose a kind of elasticity demonstration instrument for physics teaching, this demonstrator is by the initial state of two hook orientation demonstrations experiment, ensure that the consistance of each experiment, adopt a word laser localized light comparing and dynamometer can read the length of spring-compressed and the size of elastic force accurately simultaneously, realize determining the deflection of quantitative analysis spring and the relation of elastic force.
To achieve these goals, the utility model adopts following technical scheme:
A kind of elasticity demonstration instrument for physics teaching, comprise base, be fixed on the column on base, the first hook that elastic force seat and elastic force seat bottom surface are installed downwards, described elastic force seat is provided with the circular hole corresponding with column, described column inserts in corresponding circular hole, column below described elastic force seat is socketed with spring, one end of described spring is connected with elastic force seat, the other end is connected with base, described base is provided with and links up with corresponding second with first and link up with, described second hook is hinged on base, one end that described second hook is positioned at one end of base and push rod is hinged, the other end of push rod is provided with bulb, described elastic force seat is arranged with the ball that two are placed bouncing ball.Arrange the first hook and second and link up with the opportunity that can control elastic force seat and upspring, ensure the effect of each experimental demonstration, improve the accuracy of demonstration, install bulb and make push rod use more comfortable, alleviation push rod is to the thrust of palm.
The bottom surface of described elastic force seat is provided with a word laser localized light comparing.One word laser localized light comparing shines directly on ruler, can record the reduction length of spring accurately.
Between described spring and base, dynamometer is installed.Dynamometer can show power when spring is compressed accurately, makes experiment more directly perceived.
Described second hook height can regulate.The spring-compressed length of different model is different, and the second hook height can regulate the spring that can be applicable to different model.
The both sides of described column are provided with guide rod, and guide rod inserts in the circular hole corresponding with guide rod that elastic force seat is arranged respectively.Guide rod is set in the both sides of column, can makes in the rising of elastic force seat and decline process more steady, and play the guiding role in elastic force seat motion process, make experimental demonstration more accurate.
The top of described guide rod is provided with anticreep plate.Anticreep plate can block elastic force seat when elastic force seat moves to guide rod top, makes it not come off on guide rod and column, ensures the normal operation of demonstrator.
Described base is fixed with ruler with a scale.Scale on ruler clearly can record the distance that the decrement of spring and bouncing ball are upspring.
The top of described column is unsettled is provided with protective cover.Protective cover can play certain barrier effect to the bouncing ball of upspringing, and prevents bouncing ball from launching everywhere, ensures experiment safety, and contributes to quick collection bouncing ball.
The beneficial effects of the utility model are:
(1) the utility model structure is simple, with low cost, easy to make, is applicable to promote on a large scale;
(2) the utility model is by the initial state of two hook orientation demonstrations experiment, ensure that the consistance of each experiment.
(3) the utility model adopts a word laser localized light comparing and dynamometer can read the length of spring-compressed and the size of elastic force accurately, realizes determining the deflection of quantitative analysis spring and the relation of elastic force.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Wherein, 1, base, 2, spring, 3, one word laser localized light comparing, 4, ruler, 5, column, 6, bouncing ball, 7, elastic force seat, the 8, first hook, the 9, second hook, 10, push rod.
Embodiment:
Below in conjunction with accompanying drawing and embodiment, the utility model is described in further detail.
Embodiment 1:
As shown in Figure 1, a kind of elasticity demonstration instrument for physics teaching, comprise base 1, be fixed on the column 5 on base 1, the first hook 8 that elastic force seat 7 and elastic force seat 7 bottom surface are installed downwards, base 1 is fixed with ruler 4 with a scale, elastic force seat 7 is provided with the circular hole corresponding with column 5, column 5 inserts in corresponding circular hole, column 5 below elastic force seat 7 is socketed with spring 2, one end of spring 2 is connected with elastic force seat 7, the other end is connected with base 1, dynamometer can be installed between spring 2 and base 1, dynamometer can show spring 2 accurately by power during compression, make experiment more directly perceived.Base 1 is provided with and links up with 8 corresponding second with first and link up with 9, second hook 9 is hinged on base 1, second hook 9 height can regulate, and spring 2 reduction length of different model is different, and the second hook 9 height can regulate the spring 2 that can be applicable to different model.One end that second hook 9 is positioned at base 1 is hinged with one end of push rod 10, and the other end of push rod 10 is provided with bulb, and it is more comfortable that installation bulb makes push rod 10 use.Alleviate the thrust of push rod 10 pairs of palms.Elastic force seat 7 is arranged with two ball, in ball, is placed with bouncing ball 6.Bouncing ball 6 is provided with several and has different quality, and the bouncing ball 6 of same quality has one or more.The bouncing ball 6 of different quality can realize the lecture experiment of different spring 2, and the bouncing ball 6 of often kind of quality arranges one or more, contributes to recycling, and saves the experimental demonstration time.The bottom surface of elastic force seat 7 is provided with a word laser localized light comparing 3.One word laser localized light comparing 3 shines directly on ruler 4, can record the reduction length of spring 2 accurately.First hook 8 and the second hook 9 are set and can control the opportunity that elastic force seat 7 upsprings, ensure the effect of each experimental demonstration, improve the accuracy of demonstration.
This elasticity demonstration instrument for physics teaching using method is as follows, first select the spring 2 that will test, spring 2 is enclosed within column 5, then elastic force seat 7 is placed on the top of spring 2, pressing repeatedly elastic force seat 7 makes spring 2 be in equilibrium state, and it is smooth and easy to keep elastic force seat 7 to move.The bouncing ball 6 of appropriate mass is placed in the ball on elastic force seat 7, by down spring seat 7, make the first hook 8 and second hook 9 hang over together with, observe a word laser localized light comparing 3 and project graduation position on ruler 4, the length that record spring 2 compresses, record the numerical value on dynamometer simultaneously, then bulb is promoted, make push rod 10 to base 1 internal motion, push rod 10 promotes the link that the second hook 9 and first links up with 8 further, second hook 9 is rotated around connecting hinge, second hook 9 and first is linked up with 8 and is separated, bouncing ball 6 is upspring, change the reduction length of spring 2, observe the height that the different reduction length of spring 2 makes bouncing ball 6 upspring.Spring 2 reduction length is larger, namely larger by compress variation, the numerical value of dynamometer is larger, then bouncing ball 6 height of upspringing is higher, thus demonstrate out the elastic force of spring 2 and the relation of its distortion intuitively, the length scale on ruler 4 is projected by a word laser localized light comparing 3, the reduction length of energy accurate recording spring 2, the elastic force of spring 2 accurately can be read by the dynamometer of spring 2 lower end, thus the height that the quantitative deflection observing spring 2 compression and bouncing ball 6 are upspring, illustrate the deflection of spring 2 and the relation of elastic force further.
Embodiment 2
On the basis of a kind of elasticity demonstration instrument for physics teaching described by embodiment 1, also be provided with the guide rod being positioned at column 5 both sides, guide rod inserts in the circular hole corresponding with guide rod that elastic force seat 7 is arranged respectively, in the both sides of column 5, guide rod is set, elastic force seat 7 can be made to increase and more steady in decline process, and play the guiding role in elastic force seat 7 motion process, make experimental demonstration more accurate.The top of guide rod is provided with anticreep plate.Anticreep plate can block elastic force seat 7 when elastic force seat 7 moves to guide rod top, makes it not come off on guide rod and column 5, ensures the normal operation of demonstrator.
This elasticity demonstration instrument for physics teaching using method is identical with the using method of embodiment 1, after just having installed two guide rods additional, elastic force seat 7 can be made to increase and more steady in decline process, and play the guiding role in elastic force seat 7 motion process, make experimental demonstration more accurate.The top of guide rod is provided with anticreep plate simultaneously.Anticreep plate can block elastic force seat 7 when elastic force seat 7 moves to guide rod top, makes it not come off on guide rod and column 5, ensures the normal operation of demonstrator.
Embodiment 3
As embodiment 1 and embodiment 2 a kind of elasticity demonstration instrument for physics teaching of setting forth, also unsettledly above column 5 be provided with protective cover, do not touch protective cover after bouncing ball 6 should being made to upspring before each experiment and as far as possible near protective cover.The bouncing ball 6 contributed to ejecting stops, and prevents from pounding observer; Protective cover plays certain collecting action to bouncing ball 6 simultaneously, can reclaim the bouncing ball 6 of ejection fast.
By reference to the accompanying drawings embodiment of the present utility model is described although above-mentioned; but the restriction not to the utility model protection domain; one of ordinary skill in the art should be understood that; on the basis of the technical solution of the utility model, those skilled in the art do not need to pay various amendment or distortion that creative work can make still within protection domain of the present utility model.
Claims (8)
1. an elasticity demonstration instrument for physics teaching, it is characterized in that: comprise base, be fixed on the column on base, the first hook that elastic force seat and elastic force seat bottom surface are installed downwards, described elastic force seat is provided with the circular hole corresponding with column, described column inserts in corresponding circular hole, column below described elastic force seat is socketed with spring, one end of described spring is connected with elastic force seat, the other end is connected with base, described base is provided with can second to link up with together with first hangs over, described second hook is hinged on base, one end that described second hook is positioned at one end of base and push rod is hinged, the other end of push rod is provided with bulb, described elastic force seat is arranged with the ball that two are placed bouncing ball.
2. a kind of elasticity demonstration instrument for physics teaching as claimed in claim 1, is characterized in that: the bottom surface of described elastic force seat is provided with a word laser localized light comparing.
3. a kind of elasticity demonstration instrument for physics teaching as claimed in claim 1, is characterized in that: be provided with dynamometer between described spring and base.
4. a kind of elasticity demonstration instrument for physics teaching as claimed in claim 1, is characterized in that: described second hook height can regulate.
5. a kind of elasticity demonstration instrument for physics teaching as claimed in claim 1, is characterized in that: the both sides of described column are provided with guide rod, guide rod inserts in the circular hole corresponding with guide rod that elastic force seat is arranged respectively.
6. a kind of elasticity demonstration instrument for physics teaching as claimed in claim 5, is characterized in that: the top of described guide rod is provided with anticreep plate.
7. any one elasticity demonstration instrument for physics teaching as described in claim 1-6, is characterized in that: described base is fixed with ruler with a scale.
8. any one elasticity demonstration instrument for physics teaching as described in claim 1-6, is characterized in that: the top of described column is unsettled is provided with protective cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520778272.4U CN204965856U (en) | 2015-10-09 | 2015-10-09 | Elasticity demonstration instrument used for physics teaching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520778272.4U CN204965856U (en) | 2015-10-09 | 2015-10-09 | Elasticity demonstration instrument used for physics teaching |
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| Publication Number | Publication Date |
|---|---|
| CN204965856U true CN204965856U (en) | 2016-01-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520778272.4U Expired - Fee Related CN204965856U (en) | 2015-10-09 | 2015-10-09 | Elasticity demonstration instrument used for physics teaching |
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| Country | Link |
|---|---|
| CN (1) | CN204965856U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108122456A (en) * | 2017-12-01 | 2018-06-05 | 鄢月红 | A kind of elasticity demonstration device for physics teaching |
| CN108564855A (en) * | 2018-07-25 | 2018-09-21 | 周碧蕙 | A kind of high school physics study demonstrator |
-
2015
- 2015-10-09 CN CN201520778272.4U patent/CN204965856U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108122456A (en) * | 2017-12-01 | 2018-06-05 | 鄢月红 | A kind of elasticity demonstration device for physics teaching |
| CN108564855A (en) * | 2018-07-25 | 2018-09-21 | 周碧蕙 | A kind of high school physics study demonstrator |
| CN108564855B (en) * | 2018-07-25 | 2019-03-08 | 周碧蕙 | A kind of high school physics study demonstrator |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160113 Termination date: 20161009 |