CN202838755U - Teaching demonstration instrument of circular motion - Google Patents
Teaching demonstration instrument of circular motion Download PDFInfo
- Publication number
- CN202838755U CN202838755U CN 201220508872 CN201220508872U CN202838755U CN 202838755 U CN202838755 U CN 202838755U CN 201220508872 CN201220508872 CN 201220508872 CN 201220508872 U CN201220508872 U CN 201220508872U CN 202838755 U CN202838755 U CN 202838755U
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- pulley
- circular motion
- rope
- demonstration instrument
- connecting rod
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Abstract
The utility model relates to a senior high school teaching instrument, in particular to a teaching demonstration instrument of circular motion. The teaching demonstration instrument of the circular motion comprises a standing plate, a rotating shaft, a rope or a connecting rod, and a counterweight, wherein the standing plate is arranged on a base plate, the rotating shaft is arranged on the standing plate in an inserted mode, the rope or the connecting rod is arranged on the rotating shaft, and the counterweight is hung at the tail end of the rope or the connecting rod. The teaching demonstration instrument of the circular motion is characterized in that pulley plates are arranged on the base plate and at two sides of the standing plate, and pulleys are arranged on the pulley plates, wherein a handle is arranged on a pulley shaft of one pulley, one end of a pulling rope is wound on the pulley provided with the handle, the other end of the pulling rope is wound on the other pulley and fixedly connected with a balancing weight, and a pushing block is fixedly connected with the pulling rope which is arranged between the two pulleys. With the help of the teaching demonstration instrument of the circular motion, the demonstrating of rule of the circular motion in a vertical panel can be achieved intuitively. The teaching demonstration instrument of the circular motion has the advantages of being simple in structure, convenient to use and strong in enjoyment.
Description
Technical field
The utility model relates to a kind of teaching of senior high school apparatus, specifically a kind of circular motion demonstration instrument for teaching.
Background technology
Senior middle school physics curriculum is in the explanation circular motion, and the circular motion that explain in the perpendicular has two kinds of models, namely restrict class model and bar class model; Rope can only produce inside pulling force, can not produce outside anchorage force; And connecting rod can produce inside pulling force, also can produce outside anchorage force, and therefore, when doing the circular motion of separating in the perpendicular, the rope class model will be higher than the bar class model by the speed of peak.Owing to lacking corresponding demonstration instrument, in the existing teaching, the teacher can only help the student to understand by the mode of drawing, and neither intuitively also shortage is interesting, and student section is easily understood.
Summary of the invention
The purpose of this utility model provides a kind of strong circular motion demonstration instrument for teaching simple in structure, easy to use, interesting, demonstrates intuitively the rule of the circular motion in the perpendicular, and the help student grasps scientific knowledge wherein well.
The utility model is that the technical scheme that the technical solution problem adopts is:
Circular motion demonstration instrument for teaching described in the utility model comprises the riser that is installed on the base, be inserted into rotating shaft on the riser, be installed in rope or the connecting rod in the rotating shaft, the heavy Chui that hangs at rope or connecting rod end, it is characterized in that: be provided with pulley plate on the base of described riser both sides, in the described pulley plate pulley is installed, on the wheel shaft of one of them pulley handle is installed, one end of stay cord is wrapped on the pulley that is provided with handle, the other end of stay cord is walked around another pulley and is fixedly connected with balancing weight, and the stay cord between two pulley plates is fixedly connected with shifting block.
Be provided with endless groove in the described rotating shaft, be set with the collar in the endless groove, the upper end of rope or connecting rod is fixedly connected on the collar.
After adopting technique scheme, this circular motion demonstration instrument for teaching can be demonstrated the rule of the circular motion in the perpendicular intuitively, and is simple in structure, easy to use, interesting strong.
Description of drawings
Fig. 1 is the structural representation of an embodiment of the utility model.
Fig. 2 is the A-A cut-open view of Fig. 1 embodiment.
Embodiment
As shown in Figure 1, circular motion demonstration instrument for teaching described in the utility model comprises the riser 2 that is installed on the base 1, be inserted into rotating shaft 3 on the riser 2, be installed in rope or connecting rod 4 in the rotating shaft 3, hang the heavy Chui 5 at rope or connecting rod 4 ends, and riser 2 was vertical with desktop when base 1 was placed on the table.In addition, rotate flexibly in order to make heavy Chui 5, be provided with endless groove in the described rotating shaft 3, be set with the collar in the endless groove, the upper end of rope or connecting rod 4 is fixedly connected on the collar.
Be provided with pulley plate 6,7 on the base 1 of described riser 2 both sides, in the described pulley plate 6,7 pulley 8,9 is installed, handle 10 is installed on the wheel shaft of one of them pulley 8, one end of stay cord 13 is wrapped on the pulley 8 that is provided with handle 10, the other end of stay cord 13 is walked around another pulley 9 and is fixedly connected with balancing weight 11, and the stay cord between two pulley plates 6,7 is fixedly connected with shifting block 12.The movement locus of shifting block 12 is by the position of heavy Chui 5 in minimum point.
During use, connect heavy Chui 5 with rope first, as shown in Figure 1, stay cord 13 is wrapped on the pulley 8 with handle, and live fixingly with hand, it can not be rotated.Shifting block 12 is positioned at this pulley one side, selects suitable balancing weight 11 to be connected to the end of stay cord 13.When beginning demonstration, unclamp the pulley 8 of pushing down, it is mobile rapidly that balancing weight 11 drives shifting blocks 12 by stay cord 13, and shifting block 12 makes it produce kinetic energy when colliding heavy Chui 5, if this kinetic energy enough just can make greatly heavy Chui 5 walk around peak generation circular motion.The weight of adjusting balancing weight 11 just can accurate adjustment be applied to the size of the kinetic energy on the heavy Chui 5.
As a comparison, can also connect heavy Chui 5 with connecting rod, the weight of adjusting equally balancing weight 11 obtains imposing under the various different situations kinetic energy of heavy Chui 5.
Contrast the characteristics of motion that two groups of data can obtain two kinds of models of perpendicular inner periphery motion.
Claims (2)
1. circular motion demonstration instrument for teaching, comprise the riser (2) that is installed on the base (1), be inserted into the rotating shaft (3) on the riser (2), be installed in rope or connecting rod (4) in the rotating shaft (3), hang at rope or the terminal heavy Chui (5) of connecting rod (4), it is characterized in that: be provided with pulley plate (6 on the base (1) of described riser (2) both sides, 7), described pulley plate (6, pulley (8 is installed 7), 9), handle (10) is installed on the wheel shaft of one of them pulley (8), one end of stay cord (13) is wrapped on the pulley (8) that is provided with handle (10), the other end of stay cord (13) is walked around another pulley (9) and is fixedly connected with balancing weight (11), at two pulley plates (6,7) be fixedly connected with shifting block (12) on the stay cord between.
2. circular motion demonstration instrument for teaching according to claim 1, it is characterized in that: described rotating shaft is provided with endless groove on (3), is set with the collar in the endless groove, and the upper end of rope or connecting rod (4) is fixedly connected on the collar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220508872 CN202838755U (en) | 2012-10-06 | 2012-10-06 | Teaching demonstration instrument of circular motion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220508872 CN202838755U (en) | 2012-10-06 | 2012-10-06 | Teaching demonstration instrument of circular motion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202838755U true CN202838755U (en) | 2013-03-27 |
Family
ID=47950403
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220508872 Expired - Fee Related CN202838755U (en) | 2012-10-06 | 2012-10-06 | Teaching demonstration instrument of circular motion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202838755U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104575188A (en) * | 2015-01-30 | 2015-04-29 | 王振环 | Dynamics study device |
| CN104575186A (en) * | 2015-01-30 | 2015-04-29 | 王振环 | Study apparatus of circular motion |
| CN105070155A (en) * | 2015-09-11 | 2015-11-18 | 孟凡尧 | Circular motion teaching demonstration instrument and use method thereof |
| CN106023737A (en) * | 2015-01-30 | 2016-10-12 | 陈廷 | Device for vertical face kinetic studies |
| CN110014347A (en) * | 2019-05-14 | 2019-07-16 | 浙江自贸区敏瑞企业管理有限公司 | A kind of circular glass grinding device |
-
2012
- 2012-10-06 CN CN 201220508872 patent/CN202838755U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104575188A (en) * | 2015-01-30 | 2015-04-29 | 王振环 | Dynamics study device |
| CN104575186A (en) * | 2015-01-30 | 2015-04-29 | 王振环 | Study apparatus of circular motion |
| CN106023737A (en) * | 2015-01-30 | 2016-10-12 | 陈廷 | Device for vertical face kinetic studies |
| CN104575186B (en) * | 2015-01-30 | 2018-03-13 | 周晶 | Circular motion research device |
| CN104575188B (en) * | 2015-01-30 | 2018-05-08 | 台州鼎拓工业设计有限公司 | One kind is used to study dynamic (dynamical) device |
| CN106023737B (en) * | 2015-01-30 | 2018-06-08 | 蒙城县快乐行户外用品有限公司 | For the device of vertical plane dynamics research |
| CN105070155A (en) * | 2015-09-11 | 2015-11-18 | 孟凡尧 | Circular motion teaching demonstration instrument and use method thereof |
| CN110014347A (en) * | 2019-05-14 | 2019-07-16 | 浙江自贸区敏瑞企业管理有限公司 | A kind of circular glass grinding 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: 20130327 Termination date: 20131006 |