Medical oxygen supply device with automatic oxygen source switching function

Abstract

The invention discloses a medical oxygen supply device with an automatic oxygen source switching function, relates to the medical oxygen supply technology and aims at providing the medical oxygen supply device with the advantages that the automatic switching of a main oxygen source and a standby oxygen source can be realized, and the production cost can also be greatly reduced. The medical oxygen supply device has the main technical scheme that the medical oxygen supply device comprises a main oxygen source supply loop and a standby oxygen source supply loop, wherein the main oxygen source supply loop comprises a first medical liquid oxygen storage groove (1), a first stop valve (2), a first vaporizer (3) and a first one-way valve (5), the standby oxygen source supply loop comprises a second medical liquid oxygen storage groove (7), a second stop valve (14), a second vaporizer (15), a standby oxygen source supply loop pressure regulating device and a second one-way valve (18), the output end of the first one-way valve (5) and the output end of the second one-way valve (18) are respectively connected with the input end of a main pressure reduction device (20) through gas pipelines, and the like.

Description

technical field [0001] The invention relates to the field of medical oxygen supply, in particular to an oxygen supply device capable of automatically switching the functions of main and backup oxygen supply sources. Background technique [0002] Generally speaking, a medical oxygen supply device will be equipped with a set of main oxygen source and a set of backup oxygen source to ensure the reliability of oxygen supply. When the oxygen supply in the main oxygen source is insufficient, the backup oxygen source replaces the main oxygen source for oxygen supply. Currently used medical oxygen supply devices have substantially the same structure, and all adopt manual mode to switch main and standby oxygen supply sources, or utilize electronic technology to switch main and standby oxygen supply sources by means of electromagnetic control. [0003] The existing oxygen supply method has the following defects: manual switching method requires special staff to monitor the oxygen sup...

AI Technical Summary

Problems solved by technology

[0003] The existing oxygen supply method has the following defects: manual switching method requires special staff to monitor the oxygen supply status, when the main oxygen source is insufficient, switch to the backup oxygen source, and the backup oxygen source supplies oxygen, and the labor cost is high , and the switching conditions are more dependent on manual experience, and there is a greater possibility of untimely switching

Using the electromagnetic control switching method requires additional electromagnetic switches and electric control equipment. Although automatic switching can be achieved, the cost of the device is relatively high, and it cannot work normally when the power is off.

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