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Pressure gauge

A technology of pressure gauge and dial, which is applied in the direction of fluid pressure measurement of elastic deformation gauge, can solve the problems of low pressure bearing strength and vibration resistance, and achieve the effects of not being easily fatigued and damaged, enhancing bearing strength and avoiding resonance

Inactive Publication Date: 2010-09-22
BEIJING BRIGHTY INSTR +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In view of this, the present invention provides a pressure gauge to solve the problem that the pressure bearing strength and shock resistance of the existing pressure gauges are not high enough when they are used on aircraft

Method used

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Embodiment Construction

[0017] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0018] The embodiment of the invention discloses a pressure gauge, which solves the problems of low pressure bearing strength and insufficient vibration resistance of the elastic element in the existing pressure gauge.

[0019] Please refer to the attached Figure 1-3 , figure 1 Schematic diagram of the structure of the pressure gauge provided for the embodiment of the present invention; figure 2 for figure 1 Schematic diagram of the structure of the left view;...

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Abstract

The invention discloses a pressure gage, comprising a gauge plate (1), a gauge needle (5), a ventilation chassis joint (4) and a screw type spring tube (3), wherein the first end (31) of the screw type spring tube is fixed at the ventilation opening of the ventilation chassis joint (4), and the second end (32) penetrates the gauge plate (1) to be connected with the gauge needle (5). In the embodiment of the invention, the screw type spring tube is adopted for the elastic element of the pressure gauge, which virtually aims to disperse pressure displacement to a plurality of circles of helical surfaces. Compared with a traditional Bourden tube, the screw type spring tube can bear higher pressure under same displacement, thereby the bearing strength of the elastic element in the pressure gauge is improved. In addition, the gauge needle in the pressure gauge is a free end so that the pressure gauge can counteract impact generated by vibration through the swing of the gauge needle and avoid generating resonance with a vibration source, and the vibration resisting performance of the pressure gauge is improved.

Description

technical field [0001] The invention relates to the technical field of manufacturing pressure measuring devices, in particular to a pressure gauge. Background technique [0002] A pressure gauge is a measuring device for measuring air pressure. Most existing pressure gauges use bellows, bellows, and Bourdon tubes as elastic components. The above-mentioned elastic element is not only bulky and takes up space in the pressure gauge, but also if it is applied to an aircraft, the pressure-bearing strength and vibration resistance of the above-mentioned elastic element cannot meet the specified requirements. Contents of the invention [0003] In view of this, the present invention provides a pressure gauge to solve the problem that the pressure bearing strength and vibration resistance of the existing pressure gauge are not high enough when it is applied to an aircraft. [0004] In order to achieve the above object, the present invention provides the following scheme: [0005...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L7/04
Inventor 白大成韩淑华
Owner BEIJING BRIGHTY INSTR
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