CN201622736U

CN201622736U - Hydraulic transfer demonstrator

Info

Publication number: CN201622736U
Application number: CN2010201401942U
Authority: CN
Inventors: 宰胜楠
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-03-25
Filing date: 2010-03-25
Publication date: 2010-11-03
Anticipated expiration: 2020-03-25

Abstract

A hydraulic transfer demonstrator relates to a physics teaching aid and particularly relates to the hydraulic transfer demonstrator. The utility model provides the hydraulic transfer demonstrator with simple structure and obvious effect. The hydraulic transfer demonstrator comprises a bottom plate. The bottom plate is fixed with a U-shaped tube. Both ends of the U-shaped tube are respectively communicated with a small injector and a big injector. The U-shaped tube, the small injector and the big injector are filled with water. The structural points of the hydraulic transfer demonstrator are that a small tray and a big tray are respectively arranged above the small injector and the big injector; both ends of the big tray are provided with hooks; and the hooks are provided with spring scales.

Description

A kind of hydraulic pressure transfer demonstration device

Technical field:

The utility model relates to a kind of physics teaching aid, more particularly, relates to a kind of hydraulic pressure transfer demonstration device.

Background technology:

The rule that liquid pressure transmits, it is Pascal law, being crucial content in the physics teaching in secondary school, simultaneously also is one of the most elusive course in the physics lesson, in order to demonstrate out this law intuitively, the student and the head of a family press for teaching aid targetedly, yet the teaching aid structure of present stage is too complicated, and experiment effect is not obvious, is difficult to make the student to empathize, thereby brought certain difficulty to teaching, even had influence on student performance and learning interest.

Summary of the invention:

The utility model is exactly at the problems referred to above, and a kind of simple in structure, outstanding effect hydraulic pressure transfer demonstration device is provided.

In order to realize above-mentioned purpose of the present utility model, the utility model adopts following technical scheme, the utility model comprises base plate, be fixed with U type pipe on the base plate, the two ends of U type pipe communicate with little syringe and big syringe respectively, are provided with water in U type pipe, little syringe and the big syringe, and its structural feature is that the top of little syringe and big syringe is placed with little pallet and big pallet respectively, the two ends of big pallet are provided with hook, and hook is provided with spring balance.

The beneficial effects of the utility model:

The utility model only is made of base plate, U type pipe, big syringe, little syringe, big pallet, little pallet, hook and spring balance; It is simple in structure, is easy to promote.

The utility model can be directly perceived, vivo demonstrate out the whole process that liquid pressure transmits, find that the big pallet on the big syringe rises gradually after in little pallet, placing counterweight, then spur the spring balance at big pallet two ends downwards, make big pallet return to original position, read the registration on the spring balance, at this moment find the elastic force that shows on the spring balance gravity greater than counterweight, then with the gravity of elastic force that shows on the spring and counterweight respectively divided by the cross-sectional area of big syringe inner carrier and the cross-sectional area of valve piston inner carrier, the value that discovery draws equates, further like this what confirmed the water transmission is pressure rather than pressure.

Description of drawings:

Accompanying drawing is a structural representation of the present utility model.

In the accompanying drawing 1 is base plate, and 2 is U type pipe, and 3 is big syringe, and 4 is little syringe, and 5 is spring balance, and 6 is little pallet, and 7 is big pallet, and 8 are hook.

Embodiment:

The utility model comprises base plate 1, be fixed with U type pipe 2 on the base plate 1, the two ends of U type pipe 2 communicate with little syringe 4 and big syringe 3 respectively, be provided with water in U type pipe 2, little syringe 4 and the big syringe 3, the top of little syringe 4 and big syringe 3 is placed with little pallet 6 and big pallet 7 respectively, the two ends of big pallet 7 are provided with hook 8, and hook 8 is provided with spring balance 5.

Before placing counterweight, the upper end of big pallet 7 and little pallet 6 is positioned on the same horizontal line.

Below in conjunction with description of drawings structural representation of the present utility model:

Place counterweight in little pallet 6, the big pallet 7 on the big syringe 3 rises under the promotion of the piston of big syringe 3 gradually, follows the spring balance 5 at the big pallet of pulling 7 two ends downwards, makes big pallet 7 return to original position, reads the registration on the spring balance 5.

Claims

1. hydraulic pressure transfer demonstration device, comprise base plate (1), be fixed with U type pipe (2) on the base plate (1), the two ends of U type pipe (2) communicate with little syringe (4) and big syringe (3) respectively, be provided with water in U type pipe (2), little syringe (4) and the big syringe (3), the top that it is characterized in that little syringe (4) and big syringe (3) is placed with little pallet (6) and big pallet (7) respectively, and the two ends of big pallet (7) are provided with hook (8), and hook (8) is provided with spring balance (5).

2. a kind of hydraulic pressure transfer demonstration device according to claim 1, before it is characterized in that placing counterweight, the upper end of big pallet (7) and little pallet (6) is positioned on the same horizontal line.