CN103839460A - Pulley teaching demonstration physical combined teaching tool - Google Patents
Pulley teaching demonstration physical combined teaching tool Download PDFInfo
- Publication number
- CN103839460A CN103839460A CN201410114962.XA CN201410114962A CN103839460A CN 103839460 A CN103839460 A CN 103839460A CN 201410114962 A CN201410114962 A CN 201410114962A CN 103839460 A CN103839460 A CN 103839460A
- Authority
- CN
- China
- Prior art keywords
- pulley
- bracing frame
- teaching
- teaching aid
- jack
- 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.)
- Pending
Links
Images
Landscapes
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention relates to teaching instruments, in particular to a pulley teaching demonstration physical combined teaching tool. The pulley teaching demonstration physical combined teaching tool is simple in structure, convenient to use and large in visibility, and saves cost. The pulley teaching demonstration physical combined teaching tool comprises a box body (1), a box cover (2), a supporting frame I (3) and a supporting frame II (4) arranged above the supporting frame I (3). The box cover (2) is arranged on the upper portion of the box body (1), the box cover (2) is connected with the box body (1) through a lock catch (11), a groove (5) is formed in the bottom of the box body (1), the upper end of the supporting frame II (4) is provided with an inserting hole to be connected with a support (6), a fixed pulley (7) is fixed to the support (6) through a pin bolt, a pulling rope is arranged on the fixed pulley (7) along a pulley groove, one end of the pulling rope is connected with a dynamometer (8), and the other end of the pulling rope is connected with a weight (9). The pulley teaching demonstration physical combined teaching tool has the advantages that the structure is simple, using is convenient, resources are utilized fully, and capital for purchasing school experimental facilities is saved.
Description
Technical field
The present invention relates to the technical field of instruments used for education, be specially a kind of pulley teaching demonstration physics combined teaching aid.
Background technology
In the study in classroom, student exists understanding mistaken ideas: think that the difference of fixed pulley and travelling block is that structure is different; While thinking their work, one is motionless, one moving.Meanwhile, does student also exist some puzzlements: why not laborsaving fixed pulley is, and travelling block can be economized half power? why pulley can seen to a kind of lever of distortion? for these a series of problems, teacher is difficult explanation of giving a satisfaction of student also.For this reason, carry out Self-made Realia-pulley essence demonstrator, by the vivid experimental implementation of starting, outstanding students ' understanding mistaken ideas, the essence that allows student understand pulley is a kind of lever of distortion.
When the upper physics lesson of middle school student, understand natural various phenomenon and need to obtain perceptual knowledge, this simple experiment appliance is little at present, and the experimental provision volume using is now large.
Pulley is simple and mechanical one, is to load edge on certain device to have the wheel of groove, is fixed on wheel on support on fixed pulley, is not fixed on support, and the rope being enclosed in groove hauls, with the pulley moving up and down together with weight below travelling block.
And physics teaching in secondary school instrument of the prior art mostly is special, an instrument only completes an experiment, it is idle that rear instrument is finished in experiment, resource can not get applying widely, utilization factor is low, and purchases these instruments and need spend substantial contribution, has increased the cost of school's experimental teaching, therefore a lot of mountain schools, in order to save this batch of fund, have just omitted this course of experimental teaching; This is limited by very large middle school student's study, causes the putting into practice of student, manipulative ability poor, and therefore we have developed a kind of simple in structure, easy to use, pulley teaching demonstration physics combined teaching aid of economizing on the use of funds.
Summary of the invention
The object of the present invention is to provide a kind of simple in structure, easy to use, economize on the use of funds, and the large pulley teaching demonstration physics combined teaching aid of visibility.
In order to realize described object, the present invention specifically adopts following technical scheme:
A kind of pulley teaching demonstration physics combined teaching aid, comprises casing 1, case lid 2, bracing frame I 3 and be arranged on the bracing frame II 4 of bracing frame I 3 tops.It is characterized in that: described casing 1 top is provided with case lid 2, and case lid 2 is connected with casing 1 by snap close 11, and casing 1 bottom is provided with a groove 5; Described case lid 2 tops are provided with bracing frame I 3, and bracing frame I 3 upper ends are provided with jack; Described bracing frame II 4 upper ends are provided with jack, and lower end is provided with cylindrical nib, and in the jack of cylindrical nib reeve bracing frame I 3 upper ends settings, bracing frame I 3 are flexibly connected with bracing frame II 4; Described bracing frame II 4 upper ends are provided with jack and are connected with support 6; On support 6, be fixed with fixed pulley 7 by pin, on fixed pulley 7, be provided with stay cord along pulley groove, stay cord one end is connected with dynamometer 8, and the other end is connected with weight 9.
Described case lid 2 is flexibly connected with bracing frame I 3.
Described support 6 is T-shaped structure.
Cylindrical nib on longitudinal arm of described support 6 injects in the jack of bracing frame II 4 upper ends settings.
Described support 6 transverse arms are provided with mounting hole 10.
In the groove 5 that described casing 1 bottom arranges, rule is installed.
Described casing 1 inside is provided with wiring board, supply hub, teaching aid reserve chamber.
A kind of pulley teaching demonstration of the present invention physics combined teaching aid, described case lid 2 tops are provided with bracing frame I 3, and bracing frame I 3 upper ends are provided with jack; Described bracing frame II 4 upper ends are provided with jack, and lower end is provided with cylindrical nib, and in the jack of cylindrical nib reeve bracing frame I 3 upper ends settings, bracing frame I 3 are flexibly connected with bracing frame II 4; Described bracing frame II 4 upper ends are provided with jack and are connected with support 6; On support 6, be fixed with fixed pulley 7 by pin, on fixed pulley 7, be provided with stay cord along pulley groove, stay cord one end is connected with dynamometer 8, and the other end is connected with weight 9, and it can be the experimental demonstration that observation of students arrives pulley intuitively, and visibility is large, easy to use; Described case lid 2 is flexibly connected with bracing frame I 3, in the time not doing pulley lecture experiment, bracing frame I 3 is removed with upper-part, becomes simple, a portable teaching aid reserve tank, and resource is made full use of.
Compared with prior art, beneficial effect of the present invention is: the horizontal arm of described support is provided with mounting hole, and it can complete fixed pulley lecture experiment, travelling block lecture experiment, pulley blocks lecture experiment, and easy to use, visibility is large; Described case lid is flexibly connected with bracing frame I, in the time not doing pulley lecture experiment, bracing frame I is removed with upper-part, becomes simple, a portable teaching aid reserve tank, and resource is made full use of.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is travelling block and connection diagram support.
Fig. 3 is the connection diagram of pulley blocks and support.
In figure: casing 1, case lid 2, bracing frame I 3, bracing frame II 4, groove 5, support 6, fixed pulley 7, dynamometer 8, weight 9, mounting hole 10, snap close 11.
Embodiment
Below in conjunction with accompanying drawing 1, accompanying drawing 2, accompanying drawing 3, structure of the present invention and beneficial effect thereof are further illustrated.
Embodiment 1
A kind of pulley teaching demonstration physics combined teaching aid, as shown in Figure 1, comprises casing 1, case lid 2, bracing frame I 3 and be arranged on the bracing frame II 4 of bracing frame I 3 tops; Described casing 1 top is provided with case lid 2, and case lid 2 is connected with casing 1 by snap close 11, and casing 1 bottom is provided with a groove 5; Described case lid 2 tops are provided with bracing frame I 3, and bracing frame I 3 upper ends are provided with jack; Described bracing frame II 4 upper ends are provided with jack, and lower end is provided with cylindrical nib, and in the jack of cylindrical nib reeve bracing frame I 3 upper ends settings, bracing frame I 3 are flexibly connected with bracing frame II 4; Described bracing frame II 4 upper ends are provided with jack and are connected with support 6; On support 6, be fixed with fixed pulley 7 by pin, on fixed pulley 7, be provided with stay cord along pulley groove, stay cord one end is connected with dynamometer 8, and the other end is connected with weight 9.
Described case lid 2 is flexibly connected with bracing frame I 3.
Described support 6 is T-shaped structure.
Cylindrical nib on longitudinal arm of described support 6 injects in the jack of bracing frame II 4 upper ends settings.
Described support 6 transverse arms are provided with mounting hole 10.
In the groove 5 that described casing 1 bottom arranges, rule is installed.
Described casing 1 inside is provided with wiring board, supply hub, and teaching aid deposit is strong.
Fixed pulley experimental demonstration, as shown in Figure 1, fixed pulley 7 is fixed on the transverse arm with support 6 by pin, on fixed pulley 7, be provided with stay cord along pulley groove, stay cord one end is connected with dynamometer 8, the other end is connected with weight 9, by the weight of conversion different quality, reads the numeral on dynamometer 8 and writes down; Then pull down fixed pulley 7, as shown in Figure 2, then at mounting hole, hook is installed, hook one end is connected with the stay cord on travelling block, and the other end is connected with dynamometer 8, and fixed pulley below is connected with weight 9, by the weight of conversion different quality, read the numeral on dynamometer 8 and write down; Then pull down fixed pulley group, as shown in Figure 3, on the transverse arm of support 6, fix a pulley blocks, by the weight of conversion different quality, read the numeral on dynamometer 8 and write down, by comparing three groups of different pieces of informations, analyzing the difference of fixed pulley, travelling block, pulley blocks.
A kind of pulley teaching demonstration physics combined teaching aid, its concrete structure as described in Example 1.
Because described case lid 2 is flexibly connected with bracing frame I 3, in the time not doing pulley lecture experiment at ordinary times, the parts by bracing frame I more than 3 are pulled down, and make casing 1, case lid 2 form simple, a portable teaching aid reserve tank, and resource is made full use of.
Claims (7)
1. a pulley teaching demonstration physics combined teaching aid, comprises casing (1), case lid (2), bracing frame I (3) and be arranged on the bracing frame II (4) of bracing frame I (3) top; It is characterized in that: described casing (1) top is provided with case lid (2), and case lid (2) is connected with casing (1) by snap close (11), and casing (1) bottom is provided with a groove (5); Described case lid (2) top is provided with bracing frame I (3), and bracing frame I (3) upper end is provided with jack; Described bracing frame II (4) upper end is provided with jack, and lower end is provided with cylindrical nib, and in the jack of cylindrical nib reeve bracing frame I (3) upper end setting, bracing frame I (3) is flexibly connected with bracing frame II (4); Described bracing frame II (4) upper end is provided with jack and is connected with support (6); Support (6) is upper is fixed with fixed pulley (7) by pin, and fixed pulley (7) is upper is provided with stay cord along pulley groove, and stay cord one end is connected with dynamometer (8), and the other end is connected with weight (9).
2. a kind of pulley teaching demonstration physics combined teaching aid according to claim 1, is characterized in that: described case lid (2) is flexibly connected with bracing frame I (3).
3. a kind of pulley teaching demonstration physics combined teaching aid according to claim 1, is characterized in that: described support (6) is T-shaped structure.
4. a kind of pulley teaching demonstration physics combined teaching aid according to claim 1, is characterized in that: the cylindrical nib on longitudinal arm of described support (6) injects in the jack that bracing frame II (4) upper end arranges.
5. a kind of pulley teaching demonstration physics combined teaching aid according to claim 1, is characterized in that: described support (6) transverse arm is provided with mounting hole (10).
6. a kind of pulley teaching demonstration physics combined teaching aid according to claim 1, is characterized in that: in the groove (5) that described casing (1) bottom arranges, rule is installed.
7. a kind of pulley teaching demonstration physics combined teaching aid according to claim 1, is characterized in that: described casing (1) inside is provided with wiring board, supply hub, teaching aid reserve chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410114962.XA CN103839460A (en) | 2014-03-25 | 2014-03-25 | Pulley teaching demonstration physical combined teaching tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410114962.XA CN103839460A (en) | 2014-03-25 | 2014-03-25 | Pulley teaching demonstration physical combined teaching tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103839460A true CN103839460A (en) | 2014-06-04 |
Family
ID=50802913
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410114962.XA Pending CN103839460A (en) | 2014-03-25 | 2014-03-25 | Pulley teaching demonstration physical combined teaching tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103839460A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105788414A (en) * | 2016-05-27 | 2016-07-20 | 薛沐辉 | Pulley experiment device |
| CN106710381A (en) * | 2016-12-14 | 2017-05-24 | 刘艳茹 | Pulley assembly for physics teaching, and use method of pulley assembly |
| CN107833508A (en) * | 2017-11-23 | 2018-03-23 | 陈馨颖 | A kind of physics teaching assembly pulley device |
-
2014
- 2014-03-25 CN CN201410114962.XA patent/CN103839460A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105788414A (en) * | 2016-05-27 | 2016-07-20 | 薛沐辉 | Pulley experiment device |
| CN105788414B (en) * | 2016-05-27 | 2018-10-09 | 中国石油大学(华东) | A kind of pulley experimental provision |
| CN106710381A (en) * | 2016-12-14 | 2017-05-24 | 刘艳茹 | Pulley assembly for physics teaching, and use method of pulley assembly |
| CN107833508A (en) * | 2017-11-23 | 2018-03-23 | 陈馨颖 | A kind of physics teaching assembly pulley device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103839460A (en) | Pulley teaching demonstration physical combined teaching tool | |
| CN205028483U (en) | Folding political teaching publicity board | |
| CN204010447U (en) | A kind of teaching Buoyancy demonstration instrument | |
| CN205028510U (en) | Music stave teaching device | |
| CN204857002U (en) | A presentation device for verifying gaseous the thermal expansion | |
| CN204884327U (en) | Multi -functional physical teaching presentation device | |
| CN206058625U (en) | The apparatus for demonstrating of bubbling algorithm in High-level Language Programming | |
| CN203397557U (en) | Multifunctional plane figure flexible teaching appliance | |
| CN202736337U (en) | Intelligent music demonstration plate with permanent magnets | |
| CN204390541U (en) | Chinese teaching aid | |
| CN206741739U (en) | A kind of Chinese literature teaching demonstration device | |
| CN203302667U (en) | Multifunctional Chinese teaching display board | |
| CN203520693U (en) | Display device for English language teaching | |
| CN206021672U (en) | A kind of Economic Majored Students propaganda and education showing stand | |
| CN203838906U (en) | Information technology teaching rack | |
| CN205050451U (en) | A presentation device for verifying light reflex | |
| CN204537542U (en) | A kind of combined type primary school mathematics learning card | |
| CN204650833U (en) | Lever inclined-plane teaching demonstration device | |
| CN203102639U (en) | Auxiliary English word memorizing device | |
| CN202523255U (en) | Junior high school English teaching aid | |
| CN205003920U (en) | A presentation device for verifying sound wave resonance phenomenon | |
| CN210324852U (en) | Solar system model | |
| CN202650349U (en) | Pulley block used in physics teaching | |
| CN204375278U (en) | A kind of novel multifunctional physics teaching apparatus | |
| CN203149907U (en) | Law major teaching demonstration rack |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140604 |