CN213400172U - Buoyancy principle presentation device for physics teaching - Google Patents
Buoyancy principle presentation device for physics teaching Download PDFInfo
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- CN213400172U CN213400172U CN202022268823.6U CN202022268823U CN213400172U CN 213400172 U CN213400172 U CN 213400172U CN 202022268823 U CN202022268823 U CN 202022268823U CN 213400172 U CN213400172 U CN 213400172U
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Abstract
The utility model relates to the technical field of teaching instruments, in particular to a buoyancy principle demonstration device for physics teaching, which comprises supporting legs and a base, wherein the base is fixedly connected to the upper ends of the supporting legs, a supporting plate is fixedly connected to the outer side of the upper ends of the base, a fixed plate is fixedly connected to the inner side of the supporting plate, a mounting seat is fixedly connected to the lower end of the fixed plate, a rotating shaft is rotatably connected to the inner side of the mounting seat, a winding wheel is fixedly connected to the outer side of the rotating shaft, one end of the rotating shaft is fixedly connected with a handle, a sling is rotatably connected to the outer side of; the utility model discloses in, through mount pad, take-up pulley, hoist cable, main test tube, detection test tube and the three-way pipe that sets up, be convenient for at the reading in the testing process, the equipment and the dismantlement of being convenient for are convenient for form the contrast reference simultaneously, make the experimentation more directly perceived, and the operation of being convenient for can also improve the accuracy of experimental result.
Description
Technical Field
The utility model relates to a teaching instrument technical field specifically is a buoyancy principle presentation device for physical teaching.
Background
The buoyancy principle is proposed by Archimedes in 245 b.c., namely that the buoyancy force applied to the object is equal to the product of the density of liquid, a gravity constant and the volume of water discharged when the object is immersed in the liquid, and the buoyancy force is an important knowledge point which needs to be mastered in physical learning.
In physical teaching, the teacher can use relevant instrument to carry out the experiment to help the better knowledge point of understanding buoyancy of student, the experiment needs multiple instrument usually, not only is unfavorable for the operation, also has a lot of inconveniences in the use, has brought the difficulty for mr's teaching work, consequently, provides a buoyancy principle presentation device for physical teaching to above-mentioned problem.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a buoyancy principle presentation device for physical teaching to solve the problem that proposes in the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
the utility model provides a buoyancy principle presentation device for physical teaching, includes supporting legs and base, supporting legs upper end fixedly connected with base, base upper end outside fixedly connected with backup pad, the inboard fixedly connected with fixed plate of backup pad, fixed plate lower extreme fixedly connected with mount pad, the inboard rotation of mount pad is connected with the pivot, pivot outside fixedly connected with take-up pulley, pivot one end fixedly connected with handle, the take-up pulley outside is rotated and is connected with the hoist cable, hoist cable lower extreme fixedly connected with spring chest expander.
Preferably, the number of the spring chest expander is 2, the lower end of the spring chest expander on the left side is fixedly connected with shot balls, the lower end of the spring chest expander on the right side is fixedly connected with aluminum balls, and the volumes of the shot balls and the aluminum balls are equal.
Preferably, the base upside is equipped with main test tube, main test tube outside fixedly connected with presss from both sides tight frame, it is connected with clamping screw to press from both sides tight frame one end rotation, the clamping screw outside passes through screw thread fixed connection with the backup pad.
Preferably, main test tube one end fixedly connected with three-way pipe, the three-way pipe downside is equipped with the test tube, test tube outside fixedly connected with fixing base, fixing base lower extreme and base fixed connection, test tube inboard is equipped with collects the cup, and collects the cup level and place in the base upper end.
Preferably, the three-way pipe comprises a central pipe body, a first branch pipe and a second branch pipe, the lower ends of the first branch pipe and the second branch pipe are fixedly connected with the central pipe body, a first valve is arranged on the inner side of the first branch pipe, and a second valve is arranged on the inner side of the second branch pipe.
Compared with the prior art, the beneficial effects of the utility model are that:
1. in the utility model, through the installation seat, the winding wheel, the sling, the main test tube and the detection test tube, the spring chest expander can move uniformly by rotating the winding wheel, thereby facilitating the reading in the detection process, and simultaneously setting two main test tubes and the detection test tube, facilitating the formation of contrast experiments, leading the experiment process to be more visual and convenient to operate;
2. the utility model discloses in, through the three-way pipe that sets up, the three-way pipe includes central body, first minute pipe and second minute pipe lower extreme all with central body fixed connection, first minute intraductal side is equipped with first valve, the second minute intraductal side is equipped with the second valve, in the experiment demonstration process, can audio-visual observation measured object exhaust solution's volume value through first valve of switching and second valve, be convenient for gather the relevant data among the test process, not only the simple operation, can also improve the accuracy of experimental result, be convenient for assemble and dismantle simultaneously.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is the overall structure schematic diagram of the three-way pipe of the present invention.
In the figure: 1-supporting foot, 2-base, 3-supporting plate, 4-fixing plate, 5-mounting seat, 6-rotating shaft, 7-wire winding wheel, 8-handle, 9-sling, 10-spring chest expander, 11-shot, 12-aluminum ball, 13-main test tube, 14-clamping frame, 15-fixing screw, 16-three-way tube, 1601-central tube, 1602-first branch tube, 1603-second branch tube, 1604-first valve, 1605-second valve, 17-detection test tube, 18-fixing seat and 19-collection cup.
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. 1-2, the present invention provides a technical solution:
the utility model provides a buoyancy principle presentation device for physical teaching, including supporting legs 1 and base 2, 1 upper end fixedly connected with base 2 of supporting legs, 2 upper end outside fixedly connected with backup pad 3 of base, 3 inboard fixedly connected with fixed plates 4 of backup pad, 4 lower extreme fixedly connected with mount pads 5 of fixed plate, 5 inboard rotations of mount pad are connected with pivot 6, 6 outside fixedly connected with take-up pulley 7 in pivot, 6 one end fixedly connected with handles 8 in pivot, 7 outside rotations of take-up pulley are connected with hoist cable 9, 9 lower extreme fixedly connected with spring chest expander 10 of hoist cable.
The number of the spring chest developer 10 is 2, the lower end of the spring chest developer 10 on the left side is fixedly connected with a shot 11, the lower end of the spring chest developer 10 on the right side is fixedly connected with an aluminum ball 12, the volumes of the shot 11 and the aluminum ball 12 are equal, the upper side of the base 2 is provided with a main test tube 13, the outer side of the main test tube 13 is fixedly connected with a clamping frame 14, one end of the clamping frame 14 is rotatably connected with a fixing screw 15, the outer side of the fixing screw 15 is fixedly connected with the supporting plate 3 through threads, one end of the main test tube 13 is fixedly connected with a three-way pipe 16, the lower side of the three-way pipe 16 is provided with a detection test tube 17, the outer side of the detection test tube 17 is fixedly connected with a fixed seat 18, the lower end of the fixed seat 18 is fixedly connected with the base 2, the inner side of the detection test tube 17 is provided with a collection cup 19, the collection cup 19 is horizontally placed on the, a first valve 1604 is disposed inside the first branch pipe 1602, and a second valve 1605 is disposed inside the second branch pipe 1603.
The working process is as follows: before the experiment, the first valve 1604 and the second valve 1605 are closed, the same solution is added into the two main test tubes 13, when the solution in the main test tube 13 rises to the overflow port, the redundant solution flows into the central tube body 1601 from the overflow port, the second valve 1605 is opened to make the redundant solution flow into the collecting cup 19, after the solution in the second branch tube 1603 is completely discharged, the second valve 1605 is closed, the first valve 1604 is opened, the rotating shaft 6 is driven to rotate through the rotating handle 8, the rotating shaft 6 rotates to drive the winding wheel 7 to rotate, the winding wheel 7 rotates to make the sling 9 wound on the outer side of the winding wheel extend, the spring tensioner 10 measures the initial tension of the lead ball 11 and the aluminum ball 12, then the lead ball 11 and the aluminum ball 12 sink into the main test tube 13 at a constant speed, the overflowing solution enters the detection test tube 17 from the first branch tube 1602, the reading of the spring tensioner 10 is read, namely the buoyancy of the lead ball 11 and the aluminum ball 12 after being acted, the relation between the buoyancy and the density of the object to be measured can be obtained through comparison, different solutions are added into the two main test tubes 13, the aluminum ball 12 is replaced by the shot ball 11 with the same size, and the relation between the buoyancy and the density of the immersion liquid can be researched by repeating the operation.
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 (5)
1. The utility model provides a buoyancy principle presentation device for physical teaching, includes supporting legs (1) and base (2), its characterized in that: supporting legs (1) upper end fixedly connected with base (2), base (2) upper end outside fixedly connected with backup pad (3), backup pad (3) inboard fixedly connected with fixed plate (4), fixed plate (4) lower extreme fixedly connected with mount pad (5), mount pad (5) inboard is rotated and is connected with pivot (6), pivot (6) outside fixedly connected with take-up pulley (7), pivot (6) one end fixedly connected with handle (8), take-up pulley (7) outside is rotated and is connected with hoist cable (9), hoist cable (9) lower extreme fixedly connected with spring chest expander (10).
2. The buoyancy principle demonstration device for physics teaching according to claim 1, wherein: the spring chest expander is characterized in that the number of the spring chest expanders (10) is 2, the lower end of the spring chest expander (10) on the left side is fixedly connected with shot balls (11), the lower end of the spring chest expander (10) on the right side is fixedly connected with aluminum balls (12), and the volumes of the shot balls (11) and the aluminum balls (12) are equal.
3. The buoyancy principle demonstration device for physics teaching according to claim 1, wherein: base (2) upside is equipped with main test tube (13), main test tube (13) outside fixedly connected with presss from both sides tight frame (14), it is connected with clamping frame (14) one end rotation, the fixed screw rod (15) outside passes through screw thread fixed connection with backup pad (3).
4. The buoyancy principle demonstration device for physics teaching according to claim 3, wherein: the device is characterized in that one end of the main test tube (13) is fixedly connected with a three-way tube (16), a detection test tube (17) is arranged on the lower side of the three-way tube (16), a fixing seat (18) is fixedly connected to the outer side of the detection test tube (17), the lower end of the fixing seat (18) is fixedly connected with the base (2), a collection cup (19) is arranged on the inner side of the detection test tube (17), and the collection cup (19) is horizontally placed on the upper end of the base (2).
5. The buoyancy principle demonstration device for physics teaching according to claim 4, wherein: the three-way pipe (16) comprises a central pipe body (1601), a first branch pipe (1602) and a second branch pipe (1603), wherein the lower ends of the first branch pipe (1602) and the second branch pipe (1603) are fixedly connected with the central pipe body (1601), a first valve (1604) is arranged on the inner side of the first branch pipe (1602), and a second valve (1605) is arranged on the inner side of the second branch pipe (1603).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022268823.6U CN213400172U (en) | 2020-10-13 | 2020-10-13 | Buoyancy principle presentation device for physics teaching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022268823.6U CN213400172U (en) | 2020-10-13 | 2020-10-13 | Buoyancy principle presentation device for physics teaching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213400172U true CN213400172U (en) | 2021-06-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022268823.6U Active CN213400172U (en) | 2020-10-13 | 2020-10-13 | Buoyancy principle presentation device for physics teaching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213400172U (en) |
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2020
- 2020-10-13 CN CN202022268823.6U patent/CN213400172U/en active Active
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