CN205318710U - Teaching aid is demonstrated on inclined plane for physical teaching - Google Patents
Teaching aid is demonstrated on inclined plane for physical teaching Download PDFInfo
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- CN205318710U CN205318710U CN201620016547.5U CN201620016547U CN205318710U CN 205318710 U CN205318710 U CN 205318710U CN 201620016547 U CN201620016547 U CN 201620016547U CN 205318710 U CN205318710 U CN 205318710U
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Abstract
Teaching aid is demonstrated on inclined plane for physical teaching relates to fields such as physical teaching inclined plane study, the utility model discloses an angle pointer, inclined plane board, go up hinge pin shaft, fixed pulley, pulley holder, high adjusting screw, adjusting nut, reset spring, bed plate, slide, spring stop, limit baffle, angle scale plate, hinge, landing slab down, utilize the composite structure of a plurality of sliding pairs and revolute pair, constitute this inclined plane demonstration teaching aid, can carry out the regulation of multi -angle and accomplish the demonstration operation. This device inclined plane demonstration teaching aid simple structure quality is light, carries the use before the teacher of being convenient for levies. Can simulate the atress analysis of various heavy objects on the inclined plane at the demonstration in -process to and put the effect that should appear behind the heavy object. Can embody the answer effect of final problem completely through real teaching aid, need not imagine without foundation again what the result of problem. Also saved the time that the teacher mapped on the blackboard, can be on the classroom the every one minute of make full use of.
Description
Technical field
The utility model relates to the fields such as physics teaching inclined-plane study, specifically refers to a kind of physics teaching inclined-plane demonstration teaching aid.
Background technology
Inclined-plane is a kind of simple and mechanical, can be used for overcoming the difficulty of vertical-lift weight, but laborsaving takes distance. Distance all depends on inclination angle than with force rate: the inclination angle of inclined-plane and plane is more little, and inclined-plane is longer, then laborsaving more big, but takes distance. The inclination angle of inclined-plane and plane is more big, and inclined-plane is shorter, then laborsaving more little, but economizes distance. Inclined-plane is widely used in life, such as sky way, carrying cylinder, inclined-plane travelling belt etc. When not calculating any resistance, the mechanical efficiency on inclined-plane is 100%, if frictional force is very little, then can reach very high efficiency. Namely representing power with F2, s represents that inclined-plane is long, and h represents inclined-plane height, and thing is heavily G. During physical mechanics learns; usually can run into the problem of all kinds of inclined-planes object receiving force; but for the explanation instructors of this problem in reality; on blackboard, just draw the figure that various virtual inclined-plane is analyzed by power; like this; the problem of some true result sex chromosome mosaicism existed can not show from the figure of static state, and the last answer of problem is existed certain puzzlement by this.
Practical novel content
The utility model device is physics teaching inclined-plane demonstration teaching aid, and inclined-plane can carry out the various states that various angular adjustment is on inclined-plane to demonstrate weight. The technical solution adopted in the utility model is: utilizing multiple compound mechanism that is secondary and that rotate pair of sliding, form this inclined-plane demonstration teaching aid, the adjustment that can carry out multi-angle is to complete demonstration operation.
Physics teaching inclined-plane demonstration teaching aid, comprise angle indicator, inclined-plane plate, upper hinge bearing pin, fixed pulley, pulley base, height adjusting screw rod, setting nut, return spring, bed-plate, slideway, spring baffle plate, postive stop baffle, angle index plate, lower hinge, platform plate, it is characterised in that:
At the curved plate place in bed-plate front, it is connected with inclined-plane plate by lower hinge, angle indicator it is connected to again in the both sides of inclined-plane plate, the angle indicator of both sides coordinates with angle index plate, the groove place being in angle index plate, angle index plate is connected to the two ends of lower hinge by holding bolt, it is marked with pitch angle scale at angle index plate, the upper end of inclined-plane plate, it is connected with platform plate by upper hinge, in the middle position of platform plate, it is connected to pulley base by holding bolt, middle position on pulley base, by a bearing pin, fixed pulley is connected thereon, fixed pulley is rotated freely, both sides on bed-plate, by trip bolt, slideway is fixed thereon respectively, two side slideway limited location baffle plates carry out spacing, postive stop baffle is fastenedly connected by holding bolt, slide block in slideway inside with above spring baffle plate be connected, the top of spring baffle plate is provided with height adjusting screw rod, the through hole of described height adjusting screw rod upper end on platform plate, and be fixed with setting nut, in this section of height adjusting screw rod between spring baffle plate and platform plate, return spring has been installed again.
The beneficial effects of the utility model: this device inclined-plane simple light quality of demonstration teaching aid structure, portably uses before being convenient to teacher's class. Presentation process can be simulated various weight and it is in analyzing by power on inclined-plane, and the effect that should occur after putting weight. The answer effect of final problem can be embodied by real teaching aid completely, need not imagine what the result of problem is again without foundation. Also eliminate the time that teacher maps on blackboard, it is possible on classroom, make full use of each minute.
Accompanying drawing explanation
Fig. 1 is the utility model product one-piece construction schematic diagram.
Embodiment
According to Fig. 1, present embodiment is described further. The utility model is physics teaching inclined-plane demonstration teaching aid, comprise angle indicator 1, inclined-plane plate 2, upper hinge 3 bearing pin 4, fixed pulley 5, pulley base 6, height adjusting screw rod 7, setting nut 8, return spring 9, bed-plate 10, slideway 11, spring baffle plate 12, postive stop baffle 13, angle index plate 15, lower hinge 17, platform plate 19, it is characterised in that:
At the curved plate place in bed-plate 10 front, it is connected with inclined-plane plate 2 by lower hinge 17, angle indicator 1 it is connected to again in the both sides of inclined-plane plate 2, the angle indicator 1 of both sides coordinates with angle index plate 15, the groove place being in angle index plate 15, angle index plate 15 is connected to the two ends of lower hinge 17 by holding bolt 16, it is marked with pitch angle scale at angle index plate 15, the upper end of inclined-plane plate 2, it is connected with platform plate 19 by upper hinge 3, in the middle position of platform plate 19, it is connected to pulley base 6 by holding bolt 18, middle position on pulley base 6, by a bearing pin 4, fixed pulley 5 is connected thereon, fixed pulley 5 can be rotated freely, both sides on bed-plate 10, by trip bolt, slideway 11 is fixed thereon respectively, two side slideway 11 limited location baffle plates 13 carry out spacing, postive stop baffle 13 is fastenedly connected by holding bolt 14, slide block in slideway 11 inside with above spring baffle plate 12 be connected, the top of spring baffle plate 12 is provided with height adjusting screw rod 7, the through hole of described height adjusting screw rod 7 upper end on platform plate 19, and be fixed with setting nut 8, in this section of height adjusting screw rod 7 between spring baffle plate 12 and platform plate 19, return spring 9 has been installed again.
After device is positioned over smooth dais, by rotating setting nut 8 simultaneously, adjust the gradient of inclined-plane plate 2. Due to the effect of return spring 9, by the steeper words that the angle of inclined-plane plate 2 is adjusted, there is certain elastic force in return spring 9, now platform plate 19 will move up, and along the guiding of slideway 11, one will move a segment distance forward by the height adjusting screw rod 7 of whole both sides, design herein be in order to, while regulating gradient, the internal stress of whole device can be eliminated, adjustment is become more freely. Also can specifically regulate according to the size of practical problems gradient, by coordinating of the angle indicator 1 that moves with inclined-plane plate 2 and angle index plate 15, concrete angle can be adjusted. The fixed pulley 5 being on platform plate 19 can assist the demonstration of other problems in teaching, as: placing a weight on inclined-plane plate 2, the line ignoring gravity by a rigidity is undertaken hooking even with spring ergometer by fixed pulley 5. By the reading of spring ergometer, so that it may roughly calculate the size being in each component of weight on inclined-plane plate 2. Fixed pulley 5 is auxiliary parts, can only change the direction of power, can not change the size of power.
The foregoing of this device describes embodiment of the present utility model by reference to Fig. 1, it will be understood by a person skilled in the art that, the utility model product be not limited to embodiment described above, when not deviateing spirit of the present utility model, various modifications may be made, and described amendment also should be included within scope of the present utility model. Scope of the present utility model should by claims and etc. jljl limit.
Claims (1)
1. physics teaching inclined-plane demonstration teaching aid, comprise angle indicator (1), inclined-plane plate (2), upper hinge (3) bearing pin (4), fixed pulley (5), pulley base (6), height adjusting screw rod (7), setting nut (8), return spring (9), bed-plate (10), slideway (11), spring baffle plate (12), postive stop baffle (13), angle index plate (15), lower hinge (17), platform plate (19), it is characterised in that:
At the curved plate place in bed-plate (10) front, it is connected with inclined-plane plate (2) by lower hinge (17), angle indicator (1) it is connected to again in the both sides of inclined-plane plate (2), the angle indicator (1) of both sides coordinates with angle index plate (15), the groove place being in angle index plate (15), angle index plate (15) is connected to the two ends of lower hinge (17) by holding bolt, it is marked with pitch angle scale at angle index plate (15), the upper end of inclined-plane plate (2), it is connected with platform plate (19) by upper hinge (3), in the middle position of platform plate (19), it is connected to pulley base (6) by holding bolt, middle position on pulley base (6), by a bearing pin (4), fixed pulley (5) is connected thereon, fixed pulley (5) can be rotated freely, in the upper both sides of bed-plate (10), by trip bolt, slideway (11) is fixed thereon respectively, two side slideways (11) limited location baffle plate (13) carries out spacing, postive stop baffle (13) is fastenedly connected by holding bolt, the slide block inner at slideway (11) is connected with the spring baffle plate (12) of top, the top of spring baffle plate (12) is provided with height adjusting screw rod (7), the through hole of described height adjusting screw rod (7) upper end on platform plate (19), and be fixed with setting nut (8), in height adjusting screw rod (7) this section between spring baffle plate (12) and platform plate (19), return spring (9) has been installed again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620016547.5U CN205318710U (en) | 2016-01-11 | 2016-01-11 | Teaching aid is demonstrated on inclined plane for physical teaching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620016547.5U CN205318710U (en) | 2016-01-11 | 2016-01-11 | Teaching aid is demonstrated on inclined plane for physical teaching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205318710U true CN205318710U (en) | 2016-06-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620016547.5U Expired - Fee Related CN205318710U (en) | 2016-01-11 | 2016-01-11 | Teaching aid is demonstrated on inclined plane for physical teaching |
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| CN (1) | CN205318710U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106991891A (en) * | 2017-04-18 | 2017-07-28 | 陈尚松 | Hinge-connection fixes demonstrator |
| CN108564855A (en) * | 2018-07-25 | 2018-09-21 | 周碧蕙 | A kind of high school physics study demonstrator |
| CN110164263A (en) * | 2018-01-17 | 2019-08-23 | 金有芝 | A kind of lift flow rate of liquid experimental provision |
| CN113409669A (en) * | 2021-05-27 | 2021-09-17 | 山东师范大学 | Teaching demonstration device for landslide |
-
2016
- 2016-01-11 CN CN201620016547.5U patent/CN205318710U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106991891A (en) * | 2017-04-18 | 2017-07-28 | 陈尚松 | Hinge-connection fixes demonstrator |
| CN106991891B (en) * | 2017-04-18 | 2023-02-03 | 陈尚松 | Hinge joint fixing demonstration instrument |
| CN110164263A (en) * | 2018-01-17 | 2019-08-23 | 金有芝 | A kind of lift flow rate of liquid experimental provision |
| 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 |
| CN113409669A (en) * | 2021-05-27 | 2021-09-17 | 山东师范大学 | Teaching demonstration device for landslide |
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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: 20160615 Termination date: 20170111 |