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Gas pressure indication device

A gas pressure and indicating device technology, applied in the direction of elastic deformation gauge type fluid pressure measurement, etc., can solve the problems of vacuum gauge and pressure gauge can not be used together, complicated installation, complex structure, etc., to achieve light weight, easy to carry, small size Effect

Inactive Publication Date: 2008-12-17
解九成
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The deficiencies of the instruments used to detect vacuum and pressure at present are: 1. It needs more complex structure and fine manufacturing process, and the price is relatively expensive; 2. The installation is more complicated, especially there is an opening in the measured space, and the instrument must be guaranteed The connection with the opening is sealed; 3 can only be used for a single purpose, and the vacuum gauge and pressure gauge cannot be used together

Method used

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  • Gas pressure indication device
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Embodiment Construction

[0011] Attached below figure 2 The presented examples further illustrate the invention.

[0012] The present invention is made up of ventilating cover 1, transparent sleeve 6 (shell) and retractable indication plunger 5 etc., put whole device in the space to be detected, under normal pressure state, transparent plunger stays at the position shown in the figure, when When the air pressure in the space to be tested drops, the gas in the transparent plunger expands and pushes the plunger to move to the left, indicating a decrease in pressure. The lower the pressure in the space to be tested, the more the plunger moves to the left, and it stops moving when it reaches the position of the breathable cover , to protect the telescopic indicator plunger. Conversely, when the pressure in the space to be detected increases, the gas in the telescopic plunger shrinks, and the suction-driven telescopic plunger moves to the right, indicating that the pressure in the space to be detected in...

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Abstract

The invention relates to a gas pressure indicating device, as shown in the attached figure, which is composed of a ventilating cover 1, a pressure state indicating strip 2, a transparent sleeve 3 (outer shell) and a flexible sealing body 4. The gas pressure indicating device is characterized in that the shape and the volume of the sealing body are changed by the change of the gas pressure of the space to be tested; the indication pressure is changed by the shape and the volume; the flexible sealing body is made of rubber, plastic or other elastic materials.

Description

technical field [0001] The invention relates to a gas pressure indicating device. Background technique [0002] At present, known gas pressure indicating devices include a vacuum gauge (used when the pressure is lower than 1 atmosphere) and a pressure gauge (used when the pressure is higher than 1 atmosphere). The deficiencies of the instruments used to detect vacuum and pressure at present are: 1. It requires a relatively complicated structure and fine manufacturing process, and the price is relatively expensive; The connection with the opening is sealed; 3 can only be used for a single purpose, and the vacuum gauge and pressure gauge cannot be used concurrently. Contents of the invention [0003] In order to overcome the shortcomings of existing gas pressure indicating devices, the present invention provides a gas pressure indicating device which is simple to manufacture, low in cost, convenient to use, and suitable for vacuum and pressure detection. [0004] The prese...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L7/06
Inventor 解祎刘阳王治中解九成
Owner 解九成