CN204857001U - Teaching demonstration appearance - Google Patents
Teaching demonstration appearance Download PDFInfo
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- CN204857001U CN204857001U CN201520509226.4U CN201520509226U CN204857001U CN 204857001 U CN204857001 U CN 204857001U CN 201520509226 U CN201520509226 U CN 201520509226U CN 204857001 U CN204857001 U CN 204857001U
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- contact device
- shelves
- shelves post
- teaching
- demonstration instrument
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Abstract
The utility model provides a teaching demonstration appearance, by the backplate, hang oneself from a beam, pendulum ball, pendulum ball rope, contact ware mount, contact ware, a shelves post constitute its characterized in that: the backplate be flat structure, be equipped with an equally spaced shelves stake pocket hole along the direction of height to the shelves stake pocket hole that is in the intermediate position is the scale zero, on the horizontal direction of its left and right sides, is equipped with horizontal calibration mark respectively, be equipped with mobilizable contact ware mount on horizontal calibration mark to be equipped with revocable contact ware above that, directly over the shelves stake pocket hole, be equipped with with the hanging oneself from a beam of backplate fixed connection, there is the pendulum ball rope in the system hang oneself from a beam on, another side -line that pendulum ball restricted has pendulum ball. Compared with the prior art, the utility model has the characteristics of simple structure, the function is abundant, experiment phenomena is directly perceived, convenient operation etc, high school physics class teaching in -process can be improved and to the the teaching efficiency of " pendulum ball is motion laws in vertical plane " knowledge point, the teaching requirement is satisfied.
Description
Technical field
The utility model relates to experiment device for teaching field, particularly relates to a kind of experimental provision for demonstrating the swing ball characteristics of motion.
Background technology
It is a kind of very common forms of motion that swing ball moves in perpendicular, and the comparatively complicated physics law wherein comprised, as the law of conservation of mechanical energy, centripetal force and linear velocity relationship schedule, perpendicular inner periphery motion critical velocity rule etc., existing teaching means is mainly explained it by theoretical, and student is indigestibility comparatively.Also have physics lesson teacher to carry out illustrative explanation by adopting homemade demonstrating experiment device, but operating process is complicated, student difficultly can grasp method of operating, and efficiency of teaching is still not high.
Summary of the invention
The purpose of this utility model is to propose a kind of demonstration instrument for teaching, there is the features such as structure is simple, feature richness, experimental phenomena are directly perceived, easy to operate, to improve the efficiency of teaching to " swing ball is the characteristics of motion in perpendicular " knowledge point in high school physics teaching process, meet teaching request.
For achieving the above object, embodiment of the present utility model adopts following technical scheme:
A kind of demonstration instrument for teaching, be made up of backboard, overarm, swing ball, swing ball rope, contact device fixed mount, contact device, shelves post, it is characterized in that: described backboard is slab construction, in the centre position of its platen surface, be provided with the equidistant shelves post jack of row along short transverse, insert wherein for shelves post; With shelves post jack for scale zero, be respectively equipped with the horizontal scale marker of horizontal direction, above the horizontal scale marker of side wherein, be provided with moveable contact device fixed mount; Described contact device, on-fixed is arranged on contact device fixed mount, and its height and position is on horizontal scale marker line; Directly over the shelves post jack of described backboard, be provided with the overarm be fixedly connected with backboard, overarm is have swing ball rope, and another side-line of swing ball rope has swing ball.
Further, on described backboard, along short transverse, be provided with colour band paster, so that observation experiment phenomenon better.
Further, the shelves post jack place on described backboard is equipped with Digital ID, to insert shelves post more intuitively.
Further, above the horizontal scale marker on described backboard, be provided with the chute parallel with horizontal scale marker, to install contact device fixed mount.
Further, at the upper surface of described backboard, be provided with top chute, to install contact device fixed mount.
Further, described overarm is square pole.
Further, described contact device fixed mount, its short transverse can regulate.
Further, described shelves post is band hair style iron nail.
Further, described shelves post is set with white disk, to observe shelves post position better.
The utility model principle is: if to move to low spot speed larger for swing ball, more easily realize the demonstration of bead perpendicular motion, and the utility model is not increase swing ball in minimum point speed, and on allow the swing ball of pendulum length L discharge from certain altitude position, when swing ball will change the position in the center of circle after minimum point runs into grade post, radius R can diminish, do the minimum required speed of full circumferences motion so also will diminish, and at every turn from same place release swing ball, it is the same that swing ball arrives minimum point speed in perpendicular, in the speed that minimum point provides
constant, and required speed
can be more and more less, work as speed
when meeting following different condition, its motion conditions is also by difference.Each one establishes a capital by static release swing ball, observes swing ball and arrives opposite side height, during due to swing ball arrival peak, the eyes of people are not easily observed, and are provided with contact device, and swing ball arrives corresponding height and gets to contact device, contact device meeting Automatic-falling, such people facilitates observation.By the utility model, the effect of characteristics of motion demonstration in swing ball perpendicular just can be realized.
A kind of demonstration instrument for teaching that the utility model provides, have employed on backboard, insert differing heights shelves post to change the mode of the moving radius of swing ball, achieve the change of multi-motion rule, compared with traditional mode by changing swing ball linear velocity, the apparatus for demonstrating that operation the utility model provides, more easily operates enforcement.Meanwhile, by arranging contact device, the frame mode such as colour band paster pasted by horizontal scale marker, backboard, the Digital ID of the wooden peg pin being set with white disk, shelves post jack, be conducive to further observation experiment phenomenon.In addition, swing rope system is contained in the structure in the overarm of square rod type, and compared with common clip fixing structure, more convenient operation, swing ball also there will not be conical pendu0 phenomenon.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is principle of work schematic diagram of the present utility model;
Fig. 2 is perspective view of the present utility model;
Fig. 3 is front view of the present utility model;
Fig. 4 is the structural representation after shelves post of the present utility model and white disk are set with;
In figure: 1-backboard; 2-contact device fixed mount; 3-swing ball; 4-overarm; 5-shelves post; 6-contact device; 7-shelves post jack; 8-swing ball rope; 9-top chute; 10-white disk.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
A kind of demonstration instrument for teaching that the utility model embodiment proposes, as shown in Figures 2 and 3, be made up of backboard 1, overarm 4, swing ball 3, swing ball rope 8, contact device fixed mount 2, contact device 6, shelves post 5, it is characterized in that: described backboard 1 is slab construction, the centre position of its platen surface, the equidistant shelves post jack 7 of row is provided with along short transverse, insert wherein for shelves post 5, with the shelves post jack 7 mediated for scale zero, respectively in the horizontal direction of its left and right sides, be provided with horizontal scale marker; Above the horizontal scale marker of side wherein, be provided with moveable contact device fixed mount 2, contact device fixed mount 2 is provided with revocable contact device 6, and the height and position of contact device 6 is on horizontal scale marker line; Directly over the shelves post jack 7 of described backboard 1, being provided with the overarm 4 be fixedly connected with backboard 1, overarm 4 is have swing ball rope 8, and another side-line of swing ball rope 8 has swing ball 3.
Further, on described backboard 1, along short transverse, be provided with colour band paster, so that observation experiment phenomenon better.
Further, shelves post jack 7 place on described backboard 1 is equipped with Digital ID, to insert shelves post 5 more intuitively.
Further, above the horizontal scale marker on described backboard 1, be provided with the chute parallel with horizontal scale marker, to install contact device fixed mount 2.
Further, at the upper surface of described backboard 1, be provided with top chute 9, to install contact device fixed mount 2.
Further, described overarm 4 can be square pole, also can be other structure, the wherein overarm 4 of square rod type, can prevent swing ball from occurring conical pendu0 phenomenon, interference test phenomenon when swinging.
Further, described contact device fixed mount 2, its short transverse can regulate.
Further, described shelves post 5 can for taking the lead formula iron nail, or other rod-like structure.Described shelves post 5 is set with white disk 10, as shown in Figure 4, to observe shelves post 5 position better.
The above; be only embodiment of the present utility model; but protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; change can be expected easily or replace, all should be encompassed within protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of described claim.
Claims (9)
1. a demonstration instrument for teaching, be made up of backboard, overarm, swing ball, swing ball rope, contact device fixed mount, contact device, shelves post, it is characterized in that: described backboard is slab construction, in the centre position of its platen surface, be provided with the equidistant shelves post jack of row along short transverse, insert wherein for shelves post; With shelves post jack for scale zero, be respectively equipped with the horizontal scale marker of horizontal direction, above the horizontal scale marker of side wherein, be provided with moveable contact device fixed mount; Described contact device, on-fixed is arranged on contact device fixed mount, and its height and position is on horizontal scale marker line; Directly over the shelves post jack of described backboard, be provided with the overarm be fixedly connected with backboard, overarm is have swing ball rope, and another side-line of swing ball rope has swing ball.
2. a kind of demonstration instrument for teaching according to claim 1, is characterized in that: on described backboard, along short transverse, is provided with colour band paster.
3. a kind of demonstration instrument for teaching according to claim 2, it is characterized in that: on described backboard, at shelves post jack, place is equipped with Digital ID.
4. a kind of demonstration instrument for teaching according to claim 1, is characterized in that: above the horizontal scale marker on described backboard, be provided with the chute parallel with horizontal scale marker.
5. a kind of demonstration instrument for teaching according to claim 1, is characterized in that: at the upper surface of described backboard, is provided with top chute.
6. a kind of demonstration instrument for teaching according to claim 1, is characterized in that: described overarm is square pole.
7. a kind of demonstration instrument for teaching according to claim 1, is characterized in that: described contact device fixed mount, its short transverse can regulate.
8. a kind of demonstration instrument for teaching according to claim 1, is characterized in that: described shelves post is band hair style iron nail.
9. a kind of demonstration instrument for teaching according to claim 1, is characterized in that: described shelves post is set with white disk.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520509226.4U CN204857001U (en) | 2015-07-15 | 2015-07-15 | Teaching demonstration appearance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520509226.4U CN204857001U (en) | 2015-07-15 | 2015-07-15 | Teaching demonstration appearance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204857001U true CN204857001U (en) | 2015-12-09 |
Family
ID=54747529
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520509226.4U Expired - Fee Related CN204857001U (en) | 2015-07-15 | 2015-07-15 | Teaching demonstration appearance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204857001U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114596763A (en) * | 2022-03-16 | 2022-06-07 | 滁州职业技术学院 | Physical teaching experimental device based on electromagnetic induction |
-
2015
- 2015-07-15 CN CN201520509226.4U patent/CN204857001U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114596763A (en) * | 2022-03-16 | 2022-06-07 | 滁州职业技术学院 | Physical teaching experimental device based on electromagnetic induction |
| CN114596763B (en) * | 2022-03-16 | 2023-06-20 | 滁州职业技术学院 | Physical teaching experimental device based on electromagnetic induction |
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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 |
Granted publication date: 20151209 Termination date: 20160715 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |