Mechanical barometer

CN224861217UActive Publication Date: 2026-10-16BEIJING BRIGHTY INSTR
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Patent Information

Application Number
CN202522260268.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-24
Publication Date
2026-10-16
Estimated Expiration
2035-10-24

AI Technical Summary

Technical Problem

[0004]目前的机械式大气压计，结构复杂，不便于携带

Benefits of technology

[0017]This invention discloses a mechanical barometer. The barometer uses a diaphragm and an isolation tube to divide the housing into a measuring chamber A, a reference chamber B, and a housing cavity C. Measuring chamber A is connected to the outside, while reference chamber B is a vacuum chamber. Measuring chamber A and reference chamber B are located on opposite sides of the diaphragm. When the pressure in measuring chamber A changes, a pressure difference is created on both sides of the diaphragm, causing the diaphragm to move towards reference chamber B. This moves a push rod, which in turn drives a pointer to rotate. The measured atmospheric pressure is displayed on a scale indicated by the pointer. This mechanical barometer achieves measurement simply by changing the pressure difference through the diaphragm, resulting in a simple structure and a smaller size, making it easier to carry.

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Abstract

The utility model discloses a mechanical barometer, include: casing, scale dial, pointer, diaphragm membrane, isolation pipe and top rod, wherein, casing is along first direction and is provided with mutually isolated measuring cavity A, reference cavity B and casing cavity C, measuring cavity A communicates with outside, reference cavity B is sealed and vacuum, and scale dial sets up in casing cavity C, pointer rotatable setting in casing cavity C, and the needle tip of pointer can indicate the scale of scale dial, diaphragm membrane and lower body form measuring cavity A between, isolation pipe seals and isolated reference cavity B and casing cavity C, and top rod one end is connected with diaphragm membrane, and the other end is connected with pointer drive connection, and drives pointer rotation. The mechanical barometer utilizes diaphragm membrane to change under the pressure difference and can complete measurement, make the mechanical barometer simple structure, can reduce the size of mechanical barometer, thereby convenient to carry.
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