CN214279355U - Junior middle school physics teaching buoyancy presentation device - Google Patents
Junior middle school physics teaching buoyancy presentation device Download PDFInfo
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- CN214279355U CN214279355U CN202120311538.XU CN202120311538U CN214279355U CN 214279355 U CN214279355 U CN 214279355U CN 202120311538 U CN202120311538 U CN 202120311538U CN 214279355 U CN214279355 U CN 214279355U
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- physics teaching
- buoyancy
- middle school
- presentation device
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- 238000012360 testing method Methods 0.000 claims abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 238000010030 laminating Methods 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 8
- 238000000034 method Methods 0.000 description 6
- 238000002474 experimental method Methods 0.000 description 5
- 239000007788 liquid Substances 0.000 description 3
- 239000012530 fluid Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses a junior middle school physics teaching buoyancy presentation device relates to physics teaching equipment technical field, the on-line screen storage device comprises a base, the bottom fixedly connected with extension board of base, the draw-in groove has been seted up to the inside of base, first spacing groove has been seted up to the upper surface of base, the second spacing groove has been seted up to upper surface one side of base, the upper surface middle part joint of base has the test tube, the upper surface opposite side fixed mounting of base has branch. This junior high school physics teaching buoyancy presentation device sets up through the cooperation of spring with the card post, and when junior high school physics teaching buoyancy presentation device used, can prevent that the graduated flask from receiving the influence of external force and leading to not hard up broken problem, sets up through the cooperation of second spacing groove and kicking block, makes junior high school physics teaching buoyancy presentation device possess the function of conveniently measuring buoyancy, has reached the swift effect of convenient operation, has improved junior high school physics teaching buoyancy presentation device's practicality.
Description
Technical Field
The utility model relates to a physics teaching equipment technical field specifically is a junior middle school physics teaching buoyancy presentation device.
Background
The buoyancy is the force that the object received in fluid (liquid and gas), and the direction is opposite rather than its gravity, comes from the difference (resultant force) that each surface received fluid (liquid and gas) pressure, and current junior middle school physics teaching buoyancy presentation device when carrying out the experiment, adopts glassware usually, causes the damage easily, and the function is single, needs the student to operate repeatedly, influences the accuracy of experimental efficiency and experimental result.
Therefore, it is necessary to provide a buoyancy demonstration device for junior middle school physics teaching to solve the above problems.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
An object of the utility model is to provide a junior high school physics teaching buoyancy presentation device to solve the current junior high school physics teaching buoyancy presentation device who provides in the above-mentioned background art when experimenting, adopt glassware usually, cause the damage easily, the function singleness needs the student to operate repeatedly, influences the problem of the accuracy of experimental efficiency and experimental result.
(II) technical scheme
In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides a junior middle school physics teaching buoyancy presentation device, includes the base, the bottom fixedly connected with extension board of base, the draw-in groove has been seted up to the inside of base, first spacing groove has been seted up to the upper surface of base, the second spacing groove has been seted up to upper surface one side of base, the upper surface middle part joint of base has the test tube, the upper surface opposite side fixed mounting of base has branch, the inside sliding connection of branch has the slider, one side fixedly connected with slide of slider, the lower fixed surface of slide is connected with the couple.
Preferably, the inside movable mounting of draw-in groove has the spring, the laminating of one side of spring is connected with the card post.
Preferably, the measuring cylinder is clamped in the first limiting groove, and one side of the measuring cylinder is fixedly connected with a water leakage pipe.
Preferably, the inside joint of second spacing groove has the floating block, the upper surface fixed connection of floating block has first snap ring.
Preferably, one side of the sliding block is fixedly connected with a positioning block, and one side of the positioning block is in threaded connection with a bolt.
Preferably, one side laminating of couple is connected with the second snap ring, the lower fixed surface of second snap ring is connected with the spring dynamometer, the bottom joint of spring dynamometer has the pulling force hook.
Preferably, the number of the floating blocks is three, and the three floating blocks are distributed in a rectangular array.
(III) advantageous effects
Compared with the prior art, the utility model provides a junior middle school physics teaching buoyancy presentation device possesses following beneficial effect:
1. this junior high school physics teaching buoyancy presentation device sets up through the cooperation of spring with the card post, and when junior high school physics teaching buoyancy presentation device used, can prevent that the graduated flask from receiving the influence of external force and leading to not hard up broken problem, sets up through the cooperation of second spacing groove and kicking block, makes junior high school physics teaching buoyancy presentation device possess the function of conveniently measuring buoyancy, has reached the swift effect of convenient operation, has improved junior high school physics teaching buoyancy presentation device's practicality.
2. This junior high school physics teaching buoyancy presentation device, cooperation through weeping pipe and test tube sets up, when junior high school physics teaching buoyancy presentation device used, can make the object be convenient for measure buoyancy, reach the convenience that the buoyancy was measured in the teaching demonstration, cooperation through locating piece and bolt sets up, make junior high school physics teaching buoyancy presentation device possess the function of the regulating spring dynamometer height of being convenient for, the simple operation nature of device has been improved, it need not portable to make the spring dynamometer, effectively improve buoyancy experimental efficiency.
Drawings
FIG. 1 is a schematic perspective view of the buoyancy demonstrating device for junior middle school physics teaching of the present invention;
FIG. 2 is a schematic side sectional view of the buoyancy demonstrating device for junior middle school physics teaching of the present invention;
FIG. 3 is an enlarged view of area A of FIG. 2 according to the present invention;
fig. 4 is an enlarged schematic view of the area B of fig. 1 according to the present invention.
In the figure: 1. a base; 2. a support plate; 3. a card slot; 4. a spring; 5. clamping the column; 6. a first limit groove; 7. a measuring cylinder; 8. a water leakage pipe; 9. a second limit groove; 10. floating blocks; 11. a first snap ring; 12. a test tube; 13. a strut; 14. a slider; 15. positioning blocks; 16. a bolt; 17. a slide plate; 18. hooking; 19. a second snap ring; 20. a spring load cell; 21. a tension hook.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-4, a buoyancy demonstration device for junior middle school physics teaching comprises a base 1, a support plate 2 fixedly connected to the bottom of the base 1, a slot 3 formed in the base 1, a spring 4 movably mounted in the slot 3, a clamp post 5 connected to one side of the spring 4 in a fitting manner, and a measuring cylinder 7 fixed to one side of the measuring cylinder 7 and a water leakage pipe 8 arranged on one side of the measuring cylinder 7, wherein the measuring cylinder 7 is prevented from being loosened and broken due to external force when the measuring cylinder 7 is used by the cooperation of the spring 4 and the clamp post 5, a first limiting groove 6 is formed in the upper surface of the base 1, the measuring cylinder 7 is clamped in the first limiting groove 6, and the water leakage pipe 8 is arranged to discharge liquid when a floating block 10 is sunk into the measuring cylinder 7, so as to facilitate measurement, observation and calculation of buoyancy, effectively improve demonstration effect, a second limiting groove 9 is formed in one side of the upper surface of the base 1, three floating blocks 10 are provided, the three floating blocks 10 are distributed in a rectangular array, the buoyancy demonstration can be performed for a plurality of comparison experiments by arranging the three floating blocks 10 with different volumes, the reliability of the buoyancy experiment is effectively improved, the junior middle school physics teaching buoyancy demonstration device has the function of conveniently measuring the buoyancy by arranging the second limit groove 9 and the floating blocks 10 in a matching way, the effect of convenient and quick operation is achieved, the practicability of the junior middle school physics teaching buoyancy demonstration device is improved, the floating blocks 10 are clamped in the second limit groove 9, the upper surface of the floating blocks 10 is fixedly connected with a first clamping ring 11, the floating blocks 10 can be conveniently used by arranging the first clamping ring 11, the convenience of the experiment operation is effectively improved, the test tube 12 is clamped in the middle part of the upper surface of the base 1, and when the junior middle school physics teaching buoyancy demonstration device is used, the buoyancy force demonstration device for teaching demonstration can facilitate the measurement of the buoyancy force of an object, and achieves the convenience of teaching demonstration for measuring the buoyancy force, a supporting rod 13 is fixedly installed on the other side of the upper surface of a base 1, a sliding block 14 is connected to the inner portion of the supporting rod 13 in a sliding mode, a positioning block 15 is fixedly connected to one side of the sliding block 14, a bolt 16 is connected to one side of the positioning block 15 in a threaded mode, and the positioning block 15 and the bolt 16 are matched to be arranged, so that the buoyancy force demonstration device for teaching physics in junior middle school has the function of facilitating the adjustment of the height of a spring dynamometer 20, the operation convenience of the device is improved, the spring dynamometer 20 does not need to be lifted by hand, the buoyancy experiment efficiency is effectively improved, a sliding plate 17 is fixedly connected to one side of the sliding plate 17, a hook 18 is fixedly connected to the lower surface of the sliding plate 17, a second snap ring 19 is connected to one side of the hook 18 in a laminating mode, a spring dynamometer 20 is fixedly connected to the lower surface of the second snap ring 19, and a tension hook 21 is clamped to the bottom of the spring dynamometer 20, through setting up spring dynamometer 20, can make buoyancy presentation device be convenient for observe the buoyancy condition, reach the effect that conveniently carries out buoyancy and calculate.
The working principle is as follows: when the buoyancy demonstration device for junior high school physics teaching is used, firstly, the support plate 2 is stably placed on the base 1, a certain amount of water is injected into the measuring cylinder 7 and then the measuring cylinder 7 is placed in the first limit groove 6, the measuring cylinder 7 can be stably fixed by the matching arrangement of the spring 4 and the clamping column 5 in the clamping groove 3, the measuring cylinder 7 is prevented from being knocked down by mistake, the problem that the measuring cylinder 7 is loosened and broken due to external force is solved, the test tube 12 is inserted on the upper surface of the base 1, the spring dynamometer 20 is hung on the hook 18 on the lower surface of the sliding plate 17 through the second clamping ring 19, the floating block 10 in the second limit groove 9 is taken out, the buoyancy demonstration device for junior high school physics teaching is enabled to have the function of conveniently measuring buoyancy by the matching arrangement of the second limit groove 9 and the floating block 10, the effect of convenient and fast operation is achieved, the practicability of the buoyancy device for junior high school physics teaching is improved, the first clamping ring 11 on the upper surface of the floating block 10 is hung on the dynamometer 21 below the spring 20, through locating piece 15 and 16 cooperation settings of bolt, can make 14 nimble slides of slider, reach the effect of conveniently measuring buoyancy, set up through the cooperation that sets up water leakage pipe 8 and test tube 12, can be convenient for measure buoyancy.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a junior middle school physics teaching buoyancy presentation device, includes base (1), its characterized in that: the bottom fixedly connected with extension board (2) of base (1), draw-in groove (3) have been seted up to the inside of base (1), first spacing groove (6) have been seted up to the upper surface of base (1), second spacing groove (9) have been seted up to upper surface one side of base (1), the upper surface middle part joint of base (1) has test tube (12), the upper surface opposite side fixed mounting of base (1) has branch (13), the inside sliding connection of branch (13) has slider (14), one side fixedly connected with slide (17) of slider (14), the lower fixed surface of slide (17) is connected with couple (18).
2. The buoyancy demonstration device for physics teaching in junior middle school according to claim 1, wherein: the inside movable mounting of draw-in groove (3) has spring (4), one side laminating of spring (4) is connected with card post (5).
3. The buoyancy demonstration device for physics teaching in junior middle school according to claim 1, wherein: the inside joint of first spacing groove (6) has graduated flask (7), one side fixedly connected with water leakage pipe (8) of graduated flask (7).
4. The buoyancy demonstration device for physics teaching in junior middle school according to claim 1, wherein: the inside joint of second spacing groove (9) has floating block (10), the last fixed surface of floating block (10) is connected with first snap ring (11).
5. The buoyancy demonstration device for physics teaching in junior middle school according to claim 1, wherein: one side of the sliding block (14) is fixedly connected with a positioning block (15), and one side of the positioning block (15) is in threaded connection with a bolt (16).
6. The buoyancy demonstration device for physics teaching in junior middle school according to claim 1, wherein: couple (18) one side laminating is connected with second snap ring (19), the lower fixed surface of second snap ring (19) is connected with spring dynamometer (20), the bottom joint of spring dynamometer (20) has pulling force hook (21).
7. The buoyancy demonstration device for physics teaching in junior middle school according to claim 4, wherein: the number of the floating blocks (10) is three, and the three floating blocks (10) are distributed in a rectangular array.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120311538.XU CN214279355U (en) | 2021-02-03 | 2021-02-03 | Junior middle school physics teaching buoyancy presentation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120311538.XU CN214279355U (en) | 2021-02-03 | 2021-02-03 | Junior middle school physics teaching buoyancy presentation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214279355U true CN214279355U (en) | 2021-09-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120311538.XU Expired - Fee Related CN214279355U (en) | 2021-02-03 | 2021-02-03 | Junior middle school physics teaching buoyancy presentation device |
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| Country | Link |
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| CN (1) | CN214279355U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114927038A (en) * | 2022-05-27 | 2022-08-19 | 湖南第一师范学院 | Buoyancy experimental device for physics teaching |
-
2021
- 2021-02-03 CN CN202120311538.XU patent/CN214279355U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114927038A (en) * | 2022-05-27 | 2022-08-19 | 湖南第一师范学院 | Buoyancy experimental device for physics teaching |
| CN114927038B (en) * | 2022-05-27 | 2023-07-14 | 湖南第一师范学院 | Buoyancy experimental device for physical teaching |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210924 |
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| CF01 | Termination of patent right due to non-payment of annual fee |