Leakage-proof gas-pressure meter gas path change-over and locking structure

Abstract

The present invention discloses a leakage-proof gas-pressure meter gas path change-over and locking structure. The leakage-proof gas-pressure meter gas path change-over and locking structure includesa gas-pressure meter body and a sphere body; the lower end of the gas-pressure meter body is connected with a lower connection pipe; a partition plate located at the upper end of the inner cavity of the sphere body is arranged in the sphere body; thread channels are formed at the upper end, lower end, left end and right end of the sphere body respectively; one end of each thread channel, which isadjacent to the inner cavity, is provided with a limiting ring; the outer sides of the limiting rings are provided with leakage-proof washers respectively; gas path branch pipes are connected into thethread channels at the two sides and lower end of the sphere body through screw-thread fit; and an upper connection pipe and the lower connection pipe are connected with each other through screw-thread fit. According to the leakage-proof gas-pressure meter gas path change-over and locking structure, the connection structure of the change-over portion of gas paths of a gas-pressure meter is reinforced, so that the separation of pipelines at the change-over portion which is caused by excessively high gas pressure can be avoided; the sphere body is adopted, so that the gas-pressure meter can beconnected with pipelines at different directions; and the sphere body has the advantages of good leakage-proof effect, high sealing performance and high practicability, and is worth promoting.

Description

technical field [0001] The invention relates to the technical field of barometers, in particular to a leakage-proof barometer air path connection and locking structure. Background technique [0002] A barometer is an instrument used to measure air pressure. There are many types of classification. Among them, a tire pressure gauge is a kind of air pressure tire pressure gauge. It consists of a gauge head, a piston, a gauge body, a scale, and a main spring. There is only one on the gauge head The air pressure metering port has simple structure, small measuring range, high precision, and is easy to use. It is suitable for tire pressure measurement of small vehicles such as miniature cars and motorcycles. During the process, air leakage is easy to occur, or the connection is detached due to the excessive pressure of the pipeline, which cannot guarantee the normal operation of the barometer. Therefore, we propose a leak-proof air-way adapter for the barometer and locking structu...

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Problems solved by technology

[0002] A barometer is an instrument used to measure air pressure. There are many types of classification. Among them, a tire pressure gauge is a kind of air pressure tire pressure gauge. It consists of a gauge head, a piston, a gauge body, a scale, and a main spring. There is only one The air pressure metering port has simple structure, small measuring range, high precision, and is easy to use. It is suitable for tire pressure measurement of small vehicles such as miniature cars and motorcycles. During the process, air leakage is easy to occur, or the connection is detached due to excessive pressure in the pipeline, which cannot guarantee the normal operation of the barometer. Therefore, we propose a leak-proof barometer gas circuit adapter and locking structure

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