CN219738357U - Liquid buoyancy and pressure multifunctional demonstration device - Google Patents
Liquid buoyancy and pressure multifunctional demonstration device Download PDFInfo
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- CN219738357U CN219738357U CN202320238425.0U CN202320238425U CN219738357U CN 219738357 U CN219738357 U CN 219738357U CN 202320238425 U CN202320238425 U CN 202320238425U CN 219738357 U CN219738357 U CN 219738357U
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- 239000007788 liquid Substances 0.000 title claims abstract description 223
- 238000005192 partition Methods 0.000 claims description 30
- QNRATNLHPGXHMA-XZHTYLCXSA-N (r)-(6-ethoxyquinolin-4-yl)-[(2s,4s,5r)-5-ethyl-1-azabicyclo[2.2.2]octan-2-yl]methanol;hydrochloride Chemical compound Cl.C([C@H]([C@H](C1)CC)C2)CN1[C@@H]2[C@H](O)C1=CC=NC2=CC=C(OCC)C=C21 QNRATNLHPGXHMA-XZHTYLCXSA-N 0.000 claims description 6
- 230000001788 irregular Effects 0.000 claims description 4
- 238000002474 experimental method Methods 0.000 abstract description 7
- 238000012360 testing method Methods 0.000 abstract description 3
- 239000000523 sample Substances 0.000 description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000003350 kerosene Substances 0.000 description 2
- 239000008188 pellet Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000001124 body fluid Anatomy 0.000 description 1
- 239000010839 body fluid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
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Abstract
The utility model discloses a multifunctional demonstration device for liquid buoyancy and pressure intensity, which comprises a cuboid container, wherein at least two first liquid grooves with the same shape and size and at least one second liquid groove with different shapes from the first liquid groove are arranged in the cuboid container along the length direction of the cuboid container. The device has simple structure and convenient operation, and can be used for carrying out relevant comparison experiments of the pressure intensity and the buoyancy of various liquids, so that students can intuitively understand the relationship between the pressure intensity of the liquid and the depth or the density of the liquid, the influence of the density of the liquid on the buoyancy of an object can be displayed, the comprehensiveness is strong, the students can understand the principle of the liquid conveniently, and meanwhile, the teaching of teachers is facilitated; the outer surface of the liquid tank is provided with scale marks, so that the visibility and accuracy of the test are enhanced.
Description
Technical field:
the utility model belongs to the field of physical teaching aids, and particularly relates to a multifunctional demonstration device for liquid buoyancy and pressure intensity.
The background technology is as follows:
in the study about buoyancy and pressure of liquid, because the density of liquid is different, the temperature is different, the degree of depth, the material of object is different, the volume is different, the weight is also different and leads to the object to drop into the situation that can take place the difference after in the liquid, consequently need demonstrate through experimental teaching aid, the student of being convenient for knows relevant physical phenomenon and principle directly perceivedly. The traditional test method is to perform the test operation in a container containing liquids with different depths and different densities, but has the following problems: if only one container is carried, the liquid in the container needs to be replaced for multiple times, the operation is complicated, and the experiment contrast is not strong; if a plurality of containers are used for conveniently comparing, the containers are filled with liquids with different depths and different densities, and a teacher needs to carry a plurality of vessels in class, so that the use is very inconvenient. The existing integrated physical teaching aid, such as a liquid pressure demonstration device (grant publication number CN 207233266U) of chinese patent, has complex structure, high cost and difficult popularization.
The utility model comprises the following steps:
the utility model aims to provide a multifunctional demonstration device for liquid buoyancy and pressure intensity, which has various functions and is easy to operate and beneficial to improving teaching efficiency.
The utility model is implemented by the following technical scheme:
the utility model provides a multi-functional presentation device of liquid buoyancy and pressure, includes a cuboid container, the inside of cuboid container is followed the length direction of cuboid container is provided with at least two first liquid grooves that the shape, size are the same and at least one with the second liquid groove that the shape of first liquid groove is different, when including two or more the second liquid groove, two or more the shape of second liquid groove is different. The liquid tanks with different shapes are arranged in the cuboid container, and after the liquid with different depths and densities is added in the liquid tank, the relation between the liquid depth, the liquid density, the container shape and the like and the pressure intensity or buoyancy can be observed, so that the comparison is convenient.
Preferably, the first liquid tank is any one of a cuboid liquid tank, a trapezoid liquid tank, an oblique square liquid tank, a ladder liquid tank or an irregular liquid tank; each second liquid tank is any one of a cuboid liquid tank, a trapezoid liquid tank, an oblique square liquid tank, a ladder liquid tank and an irregular liquid tank.
Preferably, the side surface of the trapezoid liquid groove parallel to the length direction of the cuboid container is an inverted trapezoid with a long top and a short bottom.
Preferably, the side surface of the rhombic liquid tank parallel to the longitudinal direction of the rectangular container is a parallelogram.
Preferably, at least one side of the stepped liquid tank parallel to the length direction of the rectangular container is stepped.
Preferably, the side surface of the irregular-shaped liquid tank parallel to the longitudinal direction of the rectangular parallelepiped container is irregularly shaped.
Preferably, it comprises three of said first liquid tanks and three of said second liquid tanks; the first liquid tank is a cuboid liquid tank, and the three second liquid tanks are respectively the ladder liquid tank, the rhombic liquid tank and the ladder liquid tank.
Preferably, three first rectangular partition plates, one second rectangular partition plate and one stepped partition plate are sequentially arranged along the length direction of the cuboid container; the three first rectangular partition plates are divided into three sequentially adjacent cuboid liquid tanks in the cuboid container by one end of the cuboid container; a piece of the first rectangular partition plate and the second rectangular partition plate adjacent to the second rectangular partition plate are separated in the cuboid container to form the trapezoid liquid groove; one side surface of the stepped clapboard is rectangular, the other side surface of the stepped clapboard is stepped, the rectangular side surface of the stepped clapboard is opposite to and parallel to the second rectangular clapboard, and the stepped clapboard and the second rectangular clapboard are separated in the cuboid container to form the oblique cuboid liquid groove; the step-shaped side surface of the step-shaped partition plate and the side wall of one end of the cuboid container are arranged oppositely to form a step-shaped liquid groove.
Preferably, the bottom of the first liquid tank is parallel to the bottom of the cuboid container; the bottom of the second liquid tank is flush with the bottom of the first liquid tank.
Preferably, the outer surface of the first liquid tank is provided with scale marks; the outer surface of the second liquid groove is provided with scale marks. All scale marks on the outer surface of the liquid tank represent the distance from the point to the bottom surface of the cuboid container. The scale marks are arranged, so that the liquid depth can be accurately judged.
The utility model has the advantages that:
the multifunctional demonstration device for the liquid buoyancy and the pressure intensity is simple in structure and convenient to operate. The device is provided with a plurality of parallel liquid tanks, and the device can be used for carrying out relevant comparison experiments of the pressure intensity and the buoyancy of various liquids, so that students can intuitively understand the relationship between the pressure intensity of the liquid and the depth of the liquid or the density of the liquid, the influence of the density of the liquid on the buoyancy of an object can be displayed, the comprehensiveness is high, the students can understand the principle of the liquid, and meanwhile, the teaching of teachers is facilitated; the outer surface of the liquid tank is provided with scale marks, so that the visibility and accuracy of the test are enhanced.
Description of the drawings:
in order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a multifunctional demonstration device for liquid buoyancy and pressure according to example 1;
FIG. 2 is a schematic view of a stepped liquid tank of the multifunctional liquid buoyancy and pressure demonstrator of example 1;
fig. 3 is a schematic diagram of a multifunctional demonstration device for liquid buoyancy and pressure in example 2.
The drawings are as follows: 1. a rectangular parallelepiped container; 2. a rectangular liquid tank; 3. a trapezoid body liquid tank; 4. an oblique square body fluid groove; 5. a stepped body liquid tank; 6. scale marks; 7. a first rectangular separator; 8. a second rectangular separator; 9. a stepped separator.
The specific embodiment is as follows:
the following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. In the description of the present utility model, it should be noted that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description and simplification of description, and is not indicative or implying that the apparatus or element in question must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Example 1
The multifunctional liquid buoyancy and pressure demonstration device shown in fig. 1 comprises a cuboid container 1, wherein three first liquid tanks with the same shape and size and three second liquid tanks with different shapes from the first liquid tanks are arranged in the cuboid container 1 along the length direction of the cuboid container 1, and the shapes of the second liquid tanks are different; the first liquid tank is an oblique square liquid tank 4; the three second liquid tanks are respectively a ladder liquid tank 5, a trapezoid liquid tank 3 and a cuboid liquid tank 2. The side surface of the trapezoid liquid tank 3 parallel to the longitudinal direction of the rectangular parallelepiped vessel 1 is an inverted trapezoid with a long top and a short bottom. The side surface of the rhombic liquid tank 4 parallel to the longitudinal direction of the rectangular parallelepiped vessel 1 is a parallelogram. As shown in fig. 2, each side of the side surface of the stepped liquid tank 5 parallel to the longitudinal direction of the rectangular parallelepiped vessel 1 is stepped.
The bottom of the first liquid tank is parallel to the bottom of the cuboid container 1; the bottom of the second liquid tank is flush with the bottom of the first liquid tank.
The outer surface of the first liquid tank is provided with scale marks 6; the outer surface of the second liquid tank is provided with graduation marks 6.
Example 2
The multifunctional demonstration device for liquid buoyancy and pressure intensity shown in fig. 2 comprises a cuboid container 1, wherein three first liquid grooves with the same shape and size and three second liquid grooves with different shapes with the first liquid grooves are formed in the cuboid container 1 along the length direction of the cuboid container 1, and the shapes of the second liquid grooves are different from each other.
The first liquid tank is a cuboid liquid tank 2, and the three second liquid tanks are a ladder liquid tank 5, an oblique square liquid tank 4 and a trapezoid liquid tank 3 respectively. The side surface of the trapezoid liquid tank 3 parallel to the longitudinal direction of the rectangular parallelepiped vessel 1 is an inverted trapezoid with a long top and a short bottom. The side surface of the rhombic liquid tank 4 parallel to the longitudinal direction of the rectangular parallelepiped vessel 1 is a parallelogram. One side of the side surface of the stepped liquid tank 5 parallel to the longitudinal direction of the rectangular parallelepiped vessel 1 is stepped.
Three first rectangular partition plates 7, one second rectangular partition plate 8 and one stepped partition plate 9 are sequentially arranged along the length direction of the cuboid container 1; three first rectangular partition plates 7 are divided into three sequentially adjacent cuboid liquid tanks 2 in the cuboid container 1 by one end of the cuboid container 1; a first rectangular partition plate 7 and a second rectangular partition plate 8 adjacent to the second rectangular partition plate 8 are divided in the rectangular parallelepiped vessel 1 to form a trapezoidal liquid tank 3; one side surface of the stepped partition plate 9 is rectangular, the other side surface of the stepped partition plate is stepped, the rectangular side surface of the stepped partition plate 9 is opposite to and parallel to the second rectangular partition plate 8, and the stepped partition plate 9 and the second rectangular partition plate 8 are separated in the cuboid container 1 to form an oblique cuboid liquid tank 4; the stepped side surface of the stepped partition plate 9 is arranged opposite to the side wall of one end of the cuboid container 1 to form a stepped liquid tank 5.
The outer surface of the first liquid tank is provided with scale marks 6; the outer surface of the second liquid tank is provided with graduation marks 6.
When teaching the relevant experiment of liquid pressure, can use this device to carry out following experiment:
(1) Adding a certain amount of liquid into any liquid tank, immersing a liquid pressure gauge into the liquid, and observing the liquid column difference of the pressure gauge by changing the depth of the probe so as to demonstrate the relation between the liquid pressure and the depth;
(2) Respectively adding liquids with different densities, such as water, alcohol and kerosene, into the liquid tanks with the same shape and size, immersing the probes of the liquid pressure gauge into the same depth at the same time, observing the liquid column difference of the pressure gauge, and demonstrating the relationship between the liquid pressure and the liquid density;
(3) The same liquid is added into any two liquid tanks, then probes of the two liquid pressure gauges are immersed into the same depth at the same time, and the liquid column difference of the pressure gauges is observed, so that the pressure of the liquid can be demonstrated to be irrelevant to the shape of the container.
(4) The liquid is added into the trapezoid liquid tank 3, the liquid pressure gauge is immersed into the liquid, the probe of the pressure gauge moves up and down, the change of the liquid column of the pressure gauge is observed, the deeper the demonstration position is, the larger the pressure generated by the liquid is, and students can understand why the dam is to be built conveniently.
(5) Liquid is added into a cuboid liquid tank 2, the same liquid is added into an oblique cuboid liquid tank 4, a liquid pressure gauge is immersed into the liquid, then probes of the two liquid pressure gauges are immersed into the same depth at the same time, the liquid column difference of the pressure gauges is observed, the relation between the liquid pressure and the inclination angle of a container can be demonstrated and determined, and one of the factors of the liquid pressure is the depth of the liquid in the vertical direction.
(6) The liquid is added into the stepped liquid tank 5, the liquid pressure gauge is immersed in the liquid, the probe of the pressure gauge is moved up and down and left and right, the change of the liquid column of the pressure gauge is observed, one of the factors for determining the liquid pressure can be further demonstrated to be the depth of the liquid in the vertical direction, and the depth refers to the vertical distance from the free liquid level to the research position.
When teaching the relevant experiment of liquid buoyancy, can use this device to carry out following experiment:
(1) Liquid with different densities, such as water, alcohol and kerosene, are respectively added into the liquid tanks with the same shape and size, the completely same pellets are respectively put into the liquid tanks, and the relation between the buoyancy of the object and the density of the liquid can be demonstrated by observing the volume of the pellets immersed in the liquid.
(2) A certain amount of liquid is added into any liquid tank, a small ball is placed in the liquid tank, and students can press the small ball downwards by hands to realize the relation between buoyancy and the volume of discharged liquid.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.
Claims (10)
1. The utility model provides a multi-functional presentation device of liquid buoyancy and pressure, includes a cuboid container, its characterized in that, the inside of cuboid container is followed the length direction of cuboid container is provided with two at least shapes, the equal same first liquid groove of size and at least one with the different second liquid groove of shape in first liquid groove, when including two or more the second liquid groove, two or more the shape in second liquid groove is different.
2. The multifunctional liquid buoyancy and pressure demonstration device according to claim 1, wherein the first liquid tank is any one of a cuboid liquid tank, a trapezoid liquid tank, an oblique square liquid tank, a ladder liquid tank or an irregular liquid tank; each second liquid tank is any one of a cuboid liquid tank, a trapezoid liquid tank, an oblique square liquid tank, a ladder liquid tank and an irregular liquid tank.
3. The multifunctional liquid buoyancy and pressure demonstration device according to claim 2, wherein the side surface of the trapezoid liquid groove parallel to the length direction of the cuboid container is an inverted trapezoid with a long top and a short bottom.
4. The multifunctional liquid buoyancy and pressure demonstration device according to claim 2, wherein the side surface of the rhombic liquid groove parallel to the length direction of the rectangular container is a parallelogram.
5. The device for multifunctional demonstration of liquid buoyancy and pressure according to claim 2, wherein at least one side of the stepped liquid tank parallel to the length direction of the rectangular container is stepped.
6. The multifunctional liquid buoyancy and pressure demonstration device according to claim 2, wherein the side surface of the irregular-shaped liquid tank parallel to the length direction of the rectangular parallelepiped container is irregularly shaped.
7. A liquid buoyancy and pressure multifunctional demonstration device according to any one of claims 2-6, characterized in that it comprises three of said first liquid tanks and three of said second liquid tanks; the first liquid tank is a cuboid liquid tank, and the three second liquid tanks are respectively the ladder liquid tank, the rhombic liquid tank and the ladder liquid tank.
8. The multifunctional liquid buoyancy and pressure demonstration device according to claim 7, wherein three first rectangular partition plates, one second rectangular partition plate and one stepped partition plate are sequentially arranged along the length direction of the cuboid container; the three first rectangular partition plates are divided into three sequentially adjacent cuboid liquid tanks in the cuboid container by one end of the cuboid container; a piece of the first rectangular partition plate and the second rectangular partition plate adjacent to the second rectangular partition plate are separated in the cuboid container to form the trapezoid liquid groove; one side surface of the stepped clapboard is rectangular, the other side surface of the stepped clapboard is stepped, the rectangular side surface of the stepped clapboard is opposite to and parallel to the second rectangular clapboard, and the stepped clapboard and the second rectangular clapboard are separated in the cuboid container to form the oblique cuboid liquid groove; the step-shaped side surface of the step-shaped partition plate and the side wall of one end of the cuboid container are arranged oppositely to form a step-shaped liquid groove.
9. The multifunctional liquid buoyancy and pressure demonstration device according to claim 1, wherein the bottom of the first liquid tank is parallel to the bottom of the cuboid container; the bottom of the second liquid tank is flush with the bottom of the first liquid tank.
10. The multifunctional liquid buoyancy and pressure demonstration device according to claim 1, wherein the outer surface of the first liquid tank is provided with scale marks; the outer surface of the second liquid groove is provided with scale marks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320238425.0U CN219738357U (en) | 2023-02-16 | 2023-02-16 | Liquid buoyancy and pressure multifunctional demonstration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320238425.0U CN219738357U (en) | 2023-02-16 | 2023-02-16 | Liquid buoyancy and pressure multifunctional demonstration device |
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| Publication Number | Publication Date |
|---|---|
| CN219738357U true CN219738357U (en) | 2023-09-22 |
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| CN202320238425.0U Active CN219738357U (en) | 2023-02-16 | 2023-02-16 | Liquid buoyancy and pressure multifunctional demonstration device |
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