CN201936506U - Liquid pressure demonstrating device - Google Patents
Liquid pressure demonstrating device Download PDFInfo
- Publication number
- CN201936506U CN201936506U CN2011200029923U CN201120002992U CN201936506U CN 201936506 U CN201936506 U CN 201936506U CN 2011200029923 U CN2011200029923 U CN 2011200029923U CN 201120002992 U CN201120002992 U CN 201120002992U CN 201936506 U CN201936506 U CN 201936506U
- Authority
- CN
- China
- Prior art keywords
- cylindrical shell
- barrel body
- container
- liquid pressure
- water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
Abstract
The utility model relates to a liquid pressure demonstrating device which comprises a container, a barrel body, a ventilate hose and two springs, wherein the barrel body is arranged into a hollow shape, an upper cover and a lower cover of the barrel body are tightly connected with the barrel body through a flexible connection sleeve, one ends of the two springs are respectively connected with the inner sides of the upper cover and the lower end, and the other ends of the two springs are respectively fixed in the barrel body, the ventilate hose is arranged on the side surface of the barrel body, one end of the hose is communicated with the interior of the barrel body, and the other end of the hose exposes to the water surface to communicate with the air, the container is full of water, and the barrel body is arranged in the water of the container in a suspension way. Therefore, the device has simple structure, the students can observe the law between the liquid pressure and the liquid depth intuitively through the demonstrating of the device, and the students can understand easily.
Description
Technical field
The utility model relates to a kind of physical teaching aid, is specifically related to a kind of device that is used to demonstrate the relation of the liquid pressure and the degree of depth.
Background technology
In physics teaching, pressure is a very important and abstract concept, but, the Physical Education Teacher is when lecturing the notion of this respect, just carrying out written vival voice explains or explains with way of illustration on blackboard, the student can not see the device of demonstration veritably, say nothing of the relation of going intuitively to understand between the liquid pressure and the degree of depth, and allow the student faster the understand and master relevant knowledge be nothing but the common teaching purpose of each teacher, so how remove to demonstrate Changing Pattern between the liquid pressure and the degree of depth with teaching aid, to allow the student go to observe and then grasp fast knowledge intuitively be the trend place of teaching at present to Jiao Xue mode by experiment.
Summary of the invention
At the deficiency that prior art exists, the purpose of this utility model is to provide a kind of simple structure, can help the student better to understand the teaching aid of liquid pressure and depth relationship.
For achieving the above object, the utility model provides following technical scheme: a kind of liquid pressure apparatus for demonstrating, comprise a container, one cylindrical shell, one ventilative flexible pipe, two springs, described cylindrical shell is arranged to hollow form, the upper and lower covers of this cylindrical shell links to each other with the cylindrical shell sealing by the flexible joint cover, described two spring one ends are connected with upper and lower covers is inboard respectively, one end is separately fixed in the cylindrical shell, the cylindrical shell side is provided with ventilative flexible pipe, ventilative flexible pipe one end and inner barrel conducting, and an end surfaces and the atmosphere conducting, filled with water in the container, cylindrical shell suspend and are arranged in the interior water of container.Like this because the pressure in the cylindrical shell is identical with atmospheric pressure, when the relative water surface of cylindrical shell upper and lower covers is parallel when being pressed in the water, because the degree of depth difference of upper and lower covers in water, suffered pressure is also different, the degree of length of spring compressed is also different, in addition when the relative water surface of upper and lower covers is vertically ducked in drink, because upper and lower covers and spring are symmetrical arranged fully, we can see that the compressed degree of spring is the same by this, by observing the compressed degree of spring, can see the relation of the liquid pressure and the depth of water intuitively, be convenient to the student and understand.
Further being provided with is that described container is a transparent vessel, and outside surface has scale, and described cylindrical shell side is transparent and have a scale, and the relative cylindrical shell with the combination of spring of the upper and lower covers of described cylindrical shell is fully and is symmetrical arranged.We can calculate proportionate relationship between the depth of water and the hydraulic pressure by scale like this, allow the student further understand the relation of the hydraulic pressure and the depth of water.
Below in conjunction with accompanying drawing the utility model is further described:
Description of drawings
Fig. 1 is a cylindrical shell vertically-arranged structural representation;
Fig. 2 is a cylindrical shell side structural representation;
Embodiment
As Fig. 1, the described a kind of liquid pressure apparatus for demonstrating of Fig. 2, comprise the graduated transparent vessel 1 of outer surface belt, the graduated transparent cylindrical shell 2 of outer surface belt, band tubing 3, two identical springs 4, with spring 5, described cylindrical shell 2 hollows, the loam cake 21 of cylindrical shell 2, lower cover 22 links to each other with cylindrical shell 2 sealings by flexible joint cover 23, spring 4 one ends and loam cake 21 inboard fixedlying connected, one end is fixed on the mounting bracket 24 in the cylindrical shell 2, spring 5 one ends and lower cover 22 inboard fixedlying connected, one end is fixed on the mounting bracket 24 in the cylindrical shell 2, and mounting bracket 24 places cylindrical shell 2 centre positions, and cylindrical shell 2 sides are provided with band tubing 3, band tubing 3 one ends and cylindrical shell 2 inner conductings, an end surfaces and the atmosphere conducting.Filled with water in the transparent vessel 1, cylindrical shell 2 suspend and are arranged in the water in the container 1.Like this because the pressure in the cylindrical shell 2 is identical with atmospheric pressure, as shown in Figure 1, the relative water surface is parallel when being pressed in the water when loam cake 21 and lower cover 22, because loam cake 21 is different with the degree of depth of lower cover 22 in water, suffered pressure is also different, spring 4 is also different with spring 5 compressed degree, and we can calculate the proportionate relationship between the depth of water and the hydraulic pressure by the scale information in the container 1 and cylindrical shell 2 outsides.The relative water surface is vertical when being pressed in the water when loam cake 21 and lower cover 22 as shown in Figure 2, because loam cake 21 is identical with the degree of depth of lower cover 22 in water, suffered pressure is also identical, the student can must see intuitively that by scale at this time spring 4 is also identical with spring 5 compressed degree, is convenient to the student and understands.
Claims (3)
1. liquid pressure apparatus for demonstrating, it is characterized in that comprising a container, a cylindrical shell, a ventilative flexible pipe, two springs, described cylindrical shell is arranged to hollow form, the upper and lower covers of this cylindrical shell links to each other with the cylindrical shell sealing by the flexible joint cover, described two spring one ends are connected with upper and lower covers is inboard respectively, one end is separately fixed in the cylindrical shell, the cylindrical shell side is provided with ventilative flexible pipe, described flexible pipe one end and inner barrel conducting, one end surfaces and the atmosphere conducting, filled with water in the container, and cylindrical shell suspends and is arranged in the interior water of container.
2. a kind of liquid pressure apparatus for demonstrating according to claim 1 is characterized in that: described container is a transparent vessel, and outside surface has scale, and described cylindrical shell side is transparent and have a scale.
3. a kind of liquid pressure apparatus for demonstrating according to claim 1 is characterized in that: the relative cylindrical shell with the combination of spring of described upper and lower covers is fully and is symmetrical arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200029923U CN201936506U (en) | 2011-01-04 | 2011-01-04 | Liquid pressure demonstrating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200029923U CN201936506U (en) | 2011-01-04 | 2011-01-04 | Liquid pressure demonstrating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201936506U true CN201936506U (en) | 2011-08-17 |
Family
ID=44448022
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200029923U Expired - Fee Related CN201936506U (en) | 2011-01-04 | 2011-01-04 | Liquid pressure demonstrating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201936506U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106530911A (en) * | 2016-12-30 | 2017-03-22 | 济宁山云宇内机电科技有限公司 | Water absorption device and application thereof |
-
2011
- 2011-01-04 CN CN2011200029923U patent/CN201936506U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106530911A (en) * | 2016-12-30 | 2017-03-22 | 济宁山云宇内机电科技有限公司 | Water absorption device and application thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110817 Termination date: 20140104 |