An integrated air pump for charging and exhausting and an electronic sphygmomanometer containing the air pump

Abstract

The invention discloses an integrated air pump for charging and exhausting, which includes a motor, a transmission mechanism, a diaphragm pump, a non-return valve, a casing and an air delivery nozzle arranged on the casing, and also includes: an exhaust port arranged on the casing There is a protruding part on the body and in the housing; a blocking part is located in the housing and is used to block the exhaust port; and an elastic part is located in the housing and next to the protruding part of the exhaust port and is used to push the sealing part away Exhaust port; wherein the housing is divided into different air chambers by means of the blocking member and the partition wall, and the air chamber where the exhaust port is located communicates with the air chamber where the check valve is located through a decompression mechanism. According to the embodiment of the present invention, the integrated air pump for charging and exhausting and the electronic sphygmomanometer including the air pump save the exhaust element and other auxiliary devices that must be used in the prior art, and the control circuit of the exhaust element is omitted, thereby It can save space, reduce material cost, simplify circuit design and assembly process, and improve yield rate.

Description

technical field [0001] The invention relates to an air pump, in particular to an air pump integrated with inflation and exhaust for an electronic sphygmomanometer. Background technique [0002] The third-generation electronic sphygmomanometer commonly used at present measures blood pressure during pressurization. The third-generation electronic sphygmomanometer only has higher requirements for the inflation process, and the requirement for the exhaust is that it only needs to be able to exhaust quickly, that is, it does not need to deflate through a linear exhaust device with a certain flow requirement. Existing air pumps used in electronic sphygmomanometers only have the function of inflating air, and the airtight system of the sphygmomanometer needs to be provided with an exhaust element. When the electronic sphygmomanometer starts to measure, the exhaust element needs to be closed at this time; after the measurement is completed, the exhaust element is opened according t...

AI Technical Summary

Problems solved by technology

[0003] The disadvantages of the above technical solution include: the air pump itself does not have the exhaust function, and the exhaust components required for the airtight system are large in size, and there are many parts matching the entire air circuit system, taking up a lot of space, complicated circuits, and assembly procedures. Many, the assembly process is complex, resulting in high assembly defect rate, high quality risk, and high material cost

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