CN108922343B - Water pressure reflection presentation device for physics teaching - Google Patents
Water pressure reflection presentation device for physics teaching Download PDFInfo
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- CN108922343B CN108922343B CN201810890700.0A CN201810890700A CN108922343B CN 108922343 B CN108922343 B CN 108922343B CN 201810890700 A CN201810890700 A CN 201810890700A CN 108922343 B CN108922343 B CN 108922343B
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- angle adjusting
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
- G09B23/06—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics
- G09B23/08—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for statics or dynamics
- G09B23/12—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for statics or dynamics of liquids or gases
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Abstract
The invention relates to the field of teaching aids, in particular to a water pressure reflection demonstration device for physical teaching, which comprises a water storage container filled with water, wherein one end of the water storage container is provided with a transmitting mechanism and an angle adjusting mechanism, the transmitting mechanism comprises supports fixed on two sides of the water storage container, a rotating shaft is movably connected to the water storage container transversely across the supports, one end of the rotating shaft is fixedly provided with a winding wheel, a pull rope is wound on the winding wheel, the angle adjusting mechanism comprises an angle adjusting frame fixed on the water storage container, an ejection assembly is connected to the angle adjusting frame in a sliding manner, the ejection assembly comprises a sliding sleeve connected to the angle adjusting frame in a sliding manner, a clamping plate is fixed on the sliding sleeve, a clamping groove is formed in the clamping plate, and an ejection piece is inserted into the clamping groove. This kind of hydraulic pressure reflection presentation device for physical teaching drives the hammer block through the stay cord and rotates, and the hammer block provides an initial speed of launching for launching the piece to bounce-back according to water is used the reflection away, and the experimentation is interesting high, improves student's interest, makes the more audio-visual impression hydraulic existence of student, helps the student to understand knowledge.
Description
Technical Field
The invention relates to the field of teaching aids, in particular to a water pressure reflection demonstration device for physics teaching.
Background
Water is a commonly occurring flowable substance in nature. A foreign object is shot into water at a certain angle and speed, and the water exerts certain reaction force on the object and can reflect the object out. The traditional Chinese medicine content is traditional Chinese medicine content in middle school physics teaching, but no equipment for demonstrating a hydraulic pressure emission experiment is provided in the current middle school physics teaching, so that the learning and development only stay at an imagination stage of theoretical analysis and are not beneficial to students to deeply understand and memorize the traditional Chinese medicine content intuitively.
Disclosure of Invention
The invention aims to provide a water pressure reflection demonstration device for physics teaching, which aims to solve the problems in the background technology. In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a water pressure reflection presentation device for physical teaching, including the reservoir that is equipped with water, reservoir's one end has emitter structure and angle modulation mechanism, emitter structure is including fixing the support in reservoir both sides, and the support is gone up and is striden reservoir swing joint has the pivot, and the one end of pivot is fixed with the reel, the winding has the stay cord on the reel, angle modulation mechanism is including fixing the angle modulation frame on reservoir, sliding connection has ejection of subassembly on the angle modulation frame, ejection of subassembly includes the sliding sleeve of sliding connection on angle modulation frame, and be fixed with the cardboard on the sliding sleeve, the draw-in groove has been seted up on the cardboard, the inside grafting of draw-in groove has ejection of piece.
Preferably, the two ends of the rotating shaft are rotatably connected to the support through bearing dead axles, and the rotating shaft is fixedly connected with the hammer block through a connecting rod.
Preferably, the angle adjusting frame is of an arc-shaped structure, the circle center of the angle adjusting frame coincides with the central axis of the rotating shaft, and the running track of the hammer block coincides with the circle where the angle adjusting frame is located.
Preferably, the sliding sleeve is fixed on the angle adjusting frame through a fastening pin, the plane where the clamping plate is located is tangent to the angle adjusting frame, and the ejection direction of the ejection piece inserted in the clamping plate is also tangent to the angle adjusting frame.
Preferably, one end of the ejection piece points to the water surface of the water storage container, the other end of the ejection piece is exposed to the outside of the clamping groove, and the exposure distance is not less than 20 mm.
Preferably, a spring plate for preventing the ejection piece from sliding off is welded and fixed in the clamping groove.
Compared with the prior art, the invention has the beneficial effects that: drive the hammer block through the stay cord and revolute the rotation of axes fast, when the elastic component contact on hammer block and the cardboard, utilize the conservation of momentum principle, hammer block kinetic energy turns into the kinetic energy of launching the piece, launch the piece and have an initial ejection speed and along the tangential direction directive surface of water of angle modulation frame, and reflect away according to the rebound effect of water, launch the angle that the piece jetted into the surface of water through the position control of adjusting the sliding sleeve on the angle modulation frame, the experimentation is interesting high, improve student interest, make the more audio-visual impression hydraulic existence of student, help the student understand knowledge.
Drawings
FIG. 1 is a front view of the final assembly structure of the present invention;
FIG. 2 is a schematic view of the structure of FIG. 1 from the A direction;
fig. 3 is a schematic view of a cross-sectional structure B-B in fig. 2.
In the figure: 1, a water storage container; 2, adjusting the angle; 3, ejecting the piece; 4, sliding sleeves; 5, rotating a shaft; 6, a hammer block; 7 a winding wheel; 8, pulling a rope; 9, a bracket; 10, clamping a board; and (4) a reed of 11.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by workers skilled in the art without any inventive work based on the embodiments of the present invention, are within the scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides a water pressure reflection presentation device for physical teaching is including the reservoir 1 that is equipped with water, the one end of reservoir 1 has emitter structure and angle modulation mechanism, emitter structure is including fixing the support 9 in reservoir 1 both sides, and rotate through the bearing dead axle on the support 9 and be connected with pivot 5, through connecting rod fixed connection hammer block 6 in the pivot 5, the one end of pivot 5 is fixed with reel 7, the winding has stay cord 8 on the reel 7, the one end of stay cord 8 is fixed on reel 7.
The angle adjusting mechanism comprises an angle adjusting frame 2 fixed on the water storage container 1, the angle adjusting frame 2 is of an arc-shaped structure, the circle center of the angle adjusting frame 2 coincides with the central axis of the rotating shaft 5, the running track of the hammer block 6 coincides with the circle where the angle adjusting frame 2 is located, and the angle adjusting frame 2 is connected with an ejection assembly in a sliding mode.
The ejection assembly includes sliding connection sliding sleeve 4 on angle modulation frame 2, sliding sleeve 4 passes through the fastening pin to be fixed on angle modulation frame 2, be fixed with cardboard 10 on sliding sleeve 4, the draw-in groove has been seted up on cardboard 10, the inside grafting of draw-in groove has ejection piece 3, cardboard 10 place plane is tangent with angle modulation frame 2, the ejection direction of the ejection piece 3 of grafting on cardboard 10 also is tangent with angle modulation frame 2, the directional reservoir container 1's of one end of ejection piece 3 the surface of water, the other end exposes to the draw-in groove outside, and the exposure distance is not less than 20mm, welded fastening has the reed 11 that is used for preventing 3 landing of ejection piece in the draw-in groove.
In this embodiment, when performing the water pressure reflection experiment demonstration, the operations are as follows:
the method comprises the following steps: loosening the fastening pin on the sliding sleeve 4, adjusting the position of the sliding sleeve 4 on the angle adjusting frame 2, and then screwing the fastening pin to ensure that the sliding sleeve 4 and the angle adjusting frame 2 cannot slide relatively, wherein the path of the ejection piece 3 which is ejected into the water surface is the tangential direction of the angle adjusting frame 2 at the position;
step two: winding the pull rope 8 on the winding wheel 7 according to the same direction, and rotating the hammer block 6 to the lower part of the clamping plate 10;
step three: pulling stay cord 8 makes reel 7 rotate, reel 7 drives 5 synchronous rotations of pivot, pivot 5 drives hammer block 6 and revolutes 5 rotations in step, along with hammer block 6 rotatory when 6 striking ejection piece 3 expose to the outside tip of draw-in groove when the hammer block, by momentum conservation principle, the kinetic energy of hammer block 6 turns into the kinetic energy of ejecting piece 2, it has an initial speed of ejecting and breaks away from the draw-in groove to eject piece 3, along the tangential direction directive surface of water of transfer frame 2, eject the piece, 3 meet the power of production between water back and the water, the bounce-back effect in water is down reflected away, make the more audio-visual impression hydraulic existence of student, the experiment process is interesting high, improve student interest, help student understands knowledge.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (1)
1. The utility model provides a water pressure reflection presentation device for physical teaching, is including retaining container (1) that is equipped with water, its characterized in that: one end of the water storage container (1) is provided with a transmitting mechanism and an angle adjusting mechanism, the transmitting mechanism comprises supports (9) fixed on two sides of the water storage container (1), the supports (9) cross the water storage container (1) and are movably connected with a rotating shaft (5), one end of the rotating shaft (5) is fixed with a winding wheel (7), and a pull rope (8) is wound on the winding wheel (7); the angle adjusting mechanism comprises an angle adjusting frame (2) fixed on the water storage container (1), an ejection assembly is connected onto the angle adjusting frame (2) in a sliding mode, the ejection assembly comprises a sliding sleeve (4) connected onto the angle adjusting frame (2) in a sliding mode, a clamping plate (10) is fixed onto the sliding sleeve (4), a clamping groove is formed in the clamping plate (10), and an ejection piece (3) is inserted into the clamping groove;
two ends of the rotating shaft (5) are rotatably connected to the bracket (9) through bearing dead axles, and the rotating shaft (5) is fixedly connected with the hammer block (6) through a connecting rod;
the angle adjusting frame (2) is of an arc-shaped structure, the circle center of the angle adjusting frame coincides with the central axis of the rotating shaft (5), and the running track of the hammer block (6) coincides with the circle where the angle adjusting frame (2) is located;
the sliding sleeve (4) is fixed on the angle adjusting frame (2) through a fastening pin, the plane of the clamping plate (10) is tangent to the angle adjusting frame (2), and the ejection direction of the ejection piece (3) inserted in the clamping plate (10) is also tangent to the angle adjusting frame (2);
one end of the ejection piece (3) points to the water surface of the water storage container (1), the other end of the ejection piece is exposed to the outside of the clamping groove, and the exposure distance is not less than 20 mm;
a reed (11) for preventing the ejection piece (3) from sliding off is welded and fixed in the clamping groove;
when the hammer block impacts the end part of the ejection piece exposed outside the clamping groove along with the rotation of the hammer block, the kinetic energy of the hammer block is converted into the kinetic energy of the ejection piece, the ejection piece has an initial ejection speed and is separated from the clamping groove, and the ejection piece is ejected to the water surface along the tangential direction of the angle adjusting frame; the ejection piece generates force action with water after meeting water and reflects the water under the rebound action of the water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810890700.0A CN108922343B (en) | 2018-08-07 | 2018-08-07 | Water pressure reflection presentation device for physics teaching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810890700.0A CN108922343B (en) | 2018-08-07 | 2018-08-07 | Water pressure reflection presentation device for physics teaching |
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| Publication Number | Publication Date |
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| CN108922343A CN108922343A (en) | 2018-11-30 |
| CN108922343B true CN108922343B (en) | 2021-07-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810890700.0A Active CN108922343B (en) | 2018-08-07 | 2018-08-07 | Water pressure reflection presentation device for physics teaching |
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Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2147611Y (en) * | 1993-04-19 | 1993-11-24 | 国家教育委员会教学仪器研究所 | Kinetic and potential energy display device |
| CN2697746Y (en) * | 2004-03-30 | 2005-05-04 | 刘元国 | Semi parabolic and oblique parabolic movement trace drawing instrument |
| CN201732498U (en) * | 2010-06-13 | 2011-02-02 | 杨拓 | Backflushing movement demonstrating device |
| CN104101478B (en) * | 2014-06-24 | 2016-10-05 | 西北工业大学 | A kind of works enters water experiment discharger |
| CN105334019B (en) * | 2015-11-11 | 2017-11-21 | 哈尔滨工程大学 | Multi-angle object enters water and wave making exercise testing device |
| CN206991613U (en) * | 2017-05-25 | 2018-02-09 | 张安齐 | Law of conservation of mechanical energy experimental demonstration device |
| CN107798967A (en) * | 2017-11-19 | 2018-03-13 | 李洪玉 | Conservation of mechanical energy validating instrument |
| CN108109489A (en) * | 2017-12-29 | 2018-06-01 | 西北工业大学 | Works enters water experiment auxiliary experiment device |
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Effective date of registration: 20210719 Address after: 325200 Cao Xi Cun, Cao Cun town, Rui'an City, Wenzhou City, Zhejiang Province (opposite to Cao Cun town school) Applicant after: Zhejiang shuanghao Software Development Co.,Ltd. Address before: 312000 Qinwang 56-1, Lianxing village, Qianqing Town, Shaoxing County, Shaoxing City, Zhejiang Province Applicant before: Xu Xuezhou |