Pressure reference reset method and structure for air bed

Abstract

The invention discloses a pressure reference reset method and structure for an air bed. The air bed internally comprises two or more air bag strip sets which are arranged at intervals in a staggered mode. The front end of the air bed is connected with a valve body, an inflatable pump and a central control unit. A pressure sensing assembly in the central control unit is connected with a pressure measuring tube of the valve body. An atmosphere communicating hole is formed in the valve body. After the two air bag strip sets are inflated by the valve body, one of the two air bag strip sets is selected for exhausting, and the other air bag strip set is used for air blocking, at the moment, through the exhaust state, the atmosphere communicating hole also communicates with the pressure measuringtube to be in a communicating state with the external environment, the actions of pressure measuring of the external environment and reset of the reference pressure can be carried out, and subsequently, air pumping can be conducted according to the reference pressure. In this way, the air pumping pressure of the air bed can be constant and can be measured at any time, and the problem that the pressure is inaccurate due to the influence of the altitude or temperature difference of using occasions, and consequently lying of the human body is uncomfortable is avoided.

Description

technical field [0001] The invention relates to a pressure reference reset method and structure of an air bed, in particular to a technical field in which the internal pressure of an air bed can be reset in real time to obtain a correct and constant value. Background technique [0002] Patients lying on the hospital bed for a long time, due to the long-term pressure of the body weight and the long-term contact between the skin and the bed, often suffer from poor blood circulation and long-term pressure, resulting in decubitus ulcers with tissue necrosis. In order to prevent patients from getting decubitus, the most effective way is to let the patient lie down and exchange the intake air mattress. In this exchange air mattress, there are multiple air bag strip groups that can be exchanged for air intake and exhaust, and a valve body is used to control them. The gas is exchanged to inflate and deflate, so that the air mattress can achieve alternate and temporarily non-contact ...

AI Technical Summary

Problems solved by technology

[0005] In order to improve the above-mentioned problems such as the discomfort of inflation pressure when the existing air bed is used in places with different altitudes and high temperature differences, the main purpose of the present invention is to provide a method and structure for resetting the pressure reference. The air bed can be provided in the place of use In the operating place, the real-time measurement of the external environment pressure is carried out several times a day. Even if the temperature difference between day and night in the place is extremely large and will affect the pressure value, the pressure can be reset in real time after returning to zero, and the pump gas is required to be the correct pressure value.

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