CN217157498U

CN217157498U - Physical buoyancy experimental device

Info

Publication number: CN217157498U
Application number: CN202123150185.9U
Authority: CN
Inventors: 徐金凤
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-12-15
Filing date: 2021-12-15
Publication date: 2022-08-09
Anticipated expiration: 2031-12-15

Abstract

The utility model discloses a physical buoyancy experimental device, which comprises a water tank, wherein a support rod is fixedly connected to the upper side wall of the water tank, a support table is fixedly connected to the upper surface of the support rod, a driving motor is arranged on the upper surface of the support table, a push rod is fixedly connected to the output end of the driving motor, a tension sensor is fixedly connected to the lower end of the push rod, and a connecting rope is fixedly connected to the output end of the tension sensor; the lower extreme of connecting the rope can be dismantled and be connected with the standard block, the standard block comprises a standard section of thick bamboo, fixed lid, the inside of a standard section of thick bamboo is provided with standard mass spare. The utility model discloses in, force sensor can detect out the tensile size of rope, and driving motor can stimulate force sensor, conveniently takes out the standard block, has made things convenient for subsequent processing greatly, and the inside of standard block is provided with hollow groove, can be used for placing different quality's standard quality spare, and then makes the whole density production of standard block change, conveniently contrasts the experiment.

Description

Physical buoyancy experimental device

Technical Field

The utility model relates to an experimental apparatus technical field especially relates to a physical buoyancy experimental apparatus.

Background

The law of buoyancy of an object, also called archimedes 'law, according to the archimedes' principle, an object immersed in a liquid is subjected to upward buoyancy, the magnitude of the buoyancy is equal to the gravity applied to the liquid when the object is discharged, that is, the F-float-G-liquid discharge- ρ -liquid-gV discharge. The V row represents the volume of liquid discharged by an object, the V row is a very important law in physics, the law is abstract and not easy to understand in teaching, buoyancy is related to the volume of the object, gravity acceleration and solution density, the factors are generally not easy to adjust and control, a single variable principle is generally followed in the process of scientific experiments, and otherwise, the change of the effect caused by which factor is not easy to judge.

And buoyancy experimental apparatus among the prior art, because the regulation that can only realize the volume through replacing the laboratory glassware to the change of volume, and also embody to the regulation of solution density adopting contrast experiment usually, the mode of replacing the laboratory glassware can lead to cognizing the object and has changed, the change of buoyancy can be because the object changes the buoyancy change that leads to, and the contrast experiment of solution concentration also has the gradual change nature, there is the discrepancy in vision and understanding, lead to the visuality variation, the teaching effect is not good, give student's cognition and bring the error zone.

Chinese patent CN201910118900.9 provides a buoyancy experimental apparatus of physics teaching, the device need not to change the gradual change that can realize concentration to the laboratory glassware, when concentration is lower, the object sinks into the bottom, when concentration is higher, buoyancy increases, thereby the buoyancy that the object received is great floats, visual effect is good, do benefit to the intuitional sensation, but the device is when specifically using hardly observing object self and change, the change of buoyancy, the student may question, be unfavorable for understanding.

Therefore, in order to solve the above technical problems, it is necessary to provide a physical buoyancy experimental device to overcome the above-mentioned drawbacks in the prior art.

Disclosure of Invention

The utility model aims at solving the defects existing in the prior art and providing a physical buoyancy experimental device.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the device comprises a water tank, wherein the left end of the water tank is fixedly connected with a liquid outlet hose, and the water tank is connected with an observation box through the liquid outlet hose;

the upper side wall of the water tank is fixedly connected with a supporting rod, the upper surface of the supporting rod is fixedly connected with a supporting table, the upper surface of the supporting table is provided with a driving motor, the output end of the driving motor is fixedly connected with a push rod, the lower end of the push rod is fixedly connected with a tension sensor, and the output end of the tension sensor is fixedly connected with a connecting rope;

the lower extreme of connecting the rope can be dismantled and be connected with the standard block, the standard block comprises a standard section of thick bamboo, fixed lid, the inside of a standard section of thick bamboo is provided with standard mass spare.

As a further description of the above technical solution:

the water tank and the observation box are both made of transparent materials.

As a further description of the above technical solution:

the middle part of the liquid outlet hose is provided with a control valve, and the right end of the liquid outlet hose is provided with a one-way valve.

As a further description of the above technical solution:

the front side wall of the water tank is provided with a display screen, and the display screen is in signal connection with the tension sensor.

As a further description of the above technical solution:

the upper side wall of the water tank is provided with a support frame which is arranged in a shape like a Chinese character 'jing'.

As a further description of the above technical solution:

the cross section of the standard mass part is the same as that of the inner cavity of the standard cylinder.

As a further description of the above technical solution:

the lower end of the fixed cover is fixedly connected with a connecting block, and the fixed cover is in threaded connection with the standard cylinder through the connecting block.

As a further description of the above technical solution:

and a rubber pad is arranged between the fixed cover and the standard cylinder.

The utility model discloses following beneficial effect has:

1. compared with the prior art, this kind of physical buoyancy experimental apparatus has set up force sensor, driving motor and support frame, and force sensor can detect out the tensile size of rope, and driving motor can stimulate force sensor, conveniently takes out the standard block, has made things convenient for subsequent processing greatly.

2. Compared with the prior art, this kind of physical buoyancy experimental apparatus has set up the standard block, and the inside of standard block is provided with hollow groove, can be used for placing the standard mass spare of different masses, and then makes the whole density of standard block produce the change, conveniently carries out the contrast experiment.

3. Compared with the prior art, this kind of physics buoyancy experimental apparatus has set up the observation box, and the left side wall of observation box is provided with three water inlet, can leading-in different density's liquid, carries out the experiment of liquid density to the buoyancy influence, has improved the application scope of device greatly.

Drawings

Fig. 1 is a schematic view of a physical buoyancy experimental device provided by the present invention;

FIG. 2 is a schematic view of the inside of a water tank of the physical buoyancy test device provided by the present invention;

fig. 3 is a schematic view of the inside of a standard block of a physical buoyancy experimental device provided by the present invention;

fig. 4 is a schematic front view of the physical buoyancy experimental apparatus provided by the present invention.

Illustration of the drawings:

1. a water tank; 2. a support frame; 3. a tension sensor; 4. a support bar; 5. a support table; 6. a drive motor; 7. a push rod; 8. a liquid outlet hose; 9. a control valve; 10. a one-way valve; 11. an observation box; 12. a display screen; 13. connecting ropes; 14. a standard block; 15. a fixed cover; 16. connecting blocks; 17. a rubber pad; 18. a standard mass part; 19. a standard cartridge.

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.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-4, the present invention provides an embodiment: comprises a water tank 1, a liquid outlet hose 8 is fixedly connected at the left end of the water tank 1, the water tank 1 is connected with an observation box 11 through the liquid outlet hose 8, the water tank 1 and the observation box 11 are both made of transparent materials and are convenient to observe, a control valve 9 is arranged in the middle of the liquid outlet hose 8 and is used for controlling the flow rate of liquid, a check valve 10 is arranged at the right end of the liquid outlet hose 8 and is used for preventing the backflow of the liquid,

the side wall fixedly connected with bracing piece 4 on water tank 1, the last fixed surface of bracing piece 4 is connected with brace table 5, the upper surface of brace table 5 is provided with driving motor 6, driving motor 6's output fixedly connected with push rod 7, the lower extreme fixedly connected with force sensor 3 of push rod 7, force sensor 3's output fixedly connected with connects rope 13, the preceding lateral wall of water tank 1 is provided with display screen 12 for show the pulling force, be signal connection between display screen 12 and the force sensor 3.

The lateral wall is provided with support frame 2 on water tank 1, support frame 2 sets up to "well" font, the standard block 14 of being convenient for takes out, the lower extreme of connecting rope 13 can be dismantled and be connected with standard block 14, standard block 14 is by a standard section of thick bamboo 19, fixed lid 15 is constituteed, the inside of a standard section of thick bamboo 19 is provided with standard quality spare 18, the cross section of standard quality spare 18 is the same with a 19 inner chamber cross sections of a standard section of thick bamboo, the placing of standard quality spare 18 of being convenient for, the lower extreme fixedly connected with connecting block 16 of fixed lid 15, fixed lid 15 passes through connecting block 16 and a 19 threaded connection of a standard section of thick bamboo, be provided with rubber pad 17 between fixed lid 15 and the standard section of thick bamboo 19, sealing effect is improved.

The working principle is as follows: firstly, respectively leading water, edible oil and dimethyl silicon oil into the three water tanks, adding red inorganic fuel into the water, then selecting three standard blocks 14 with the same mass, connecting the standard blocks 14 with the detection end of the tension sensor 3 through a connecting rope 13, putting the standard blocks into the water tank 1, putting the tension sensor 3 down through a push rod 7 by a driving motor 6, then observing the tension value of a display screen 12, when the influence of different liquid densities on buoyancy is required, sequentially leading the dimethyl silicon oil, the water and the edible oil into an observation box 11 by opening a control valve 9, and then selecting the three standard blocks 14 with different masses, putting the standard blocks into the observation box 11, and observing.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides a physical buoyancy experimental apparatus, includes water tank (1), its characterized in that: the left end of the water tank (1) is fixedly connected with a liquid outlet hose (8), and the water tank (1) is connected with an observation box (11) through the liquid outlet hose (8);

the upper side wall of the water tank (1) is fixedly connected with a support rod (4), the upper surface of the support rod (4) is fixedly connected with a support table (5), the upper surface of the support table (5) is provided with a driving motor (6), the output end of the driving motor (6) is fixedly connected with a push rod (7), the lower end of the push rod (7) is fixedly connected with a tension sensor (3), and the output end of the tension sensor (3) is fixedly connected with a connecting rope (13);

the lower extreme of connecting rope (13) can be dismantled and be connected with standard block (14), standard block (14) comprise standard section of thick bamboo (19), fixed lid (15), the inside of standard section of thick bamboo (19) is provided with standard quality spare (18).

2. The physical buoyancy experimental device according to claim 1, wherein: the water tank (1) and the observation box (11) are both made of transparent materials.

3. The physical buoyancy experimental device according to claim 1, wherein: the middle part of the liquid outlet hose (8) is provided with a control valve (9), and the right end of the liquid outlet hose (8) is provided with a one-way valve (10).

4. The physical buoyancy experimental device according to claim 1, wherein: the front side wall of the water tank (1) is provided with a display screen (12), and the display screen (12) is in signal connection with the tension sensor (3).

5. The physical buoyancy experimental device according to claim 1, wherein: the upper side wall of the water tank (1) is provided with a support frame (2), and the support frame (2) is arranged in a shape like a Chinese character 'jing'.

6. The physical buoyancy experimental device according to claim 1, wherein: the cross section of the standard mass part (18) is the same as the cross section of the inner cavity of the standard barrel (19).

7. The physical buoyancy experimental device according to claim 1, wherein: the lower end of the fixed cover (15) is fixedly connected with a connecting block (16), and the fixed cover (15) is in threaded connection with the standard cylinder (19) through the connecting block (16).

8. The physical buoyancy experimental device according to claim 1, wherein: a rubber pad (17) is arranged between the fixed cover (15) and the standard cylinder (19).