Air pump and electronic sphygmomanometer
An air pump and air bag technology, applied in the direction of pumps, pump components, variable displacement pump components, etc., can solve problems such as air flow fluctuations, and achieve the effect of stable boosting process, reducing fluctuation and ensuring accuracy
Pending Publication Date: 2019-07-19
DONGGUAN KANGZHU MEDICAL TECH CO LTD
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Problems solved by technology
[0005] The purpose of the present invention is to provide an air pump, aiming at solving the technical problem of the existing air pump that the airflow fluctuates significantly during the boosting process
Method used
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[0039] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0040] It should be noted that when a component is referred to as being “fixed on” or “disposed on” another component, it may be directly or indirectly on the other component. When an element is referred to as being "connected to" another element, it can be directly or indirectly connected to the other element. The orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. are based on the orientation or positional relationship shown in the drawings, and are for convenience of description only, rather than indicating or implying the referred device Or ele...
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The invention is applicable to the technical field of medical apparatuses, and provides an air pump and an electronic sphygmomanometer. The air pump comprises a housing, a motor which is arranged at the outer part of the housing, a transmission assembly arranged in the housing, a diaphragm pump arranged in the housing, and a check valve arranged in the housing, wherein a separating plate providedwith a through hole is arranged in the housing; the motor is arranged at the outer part of the housing, and the transmission assembly is arranged in the housing and is connected to the motor; the diaphragm pump is arranged in the housing and is connected to the transmission assembly, and the diaphragm pump is used for pumping air to one side of an air outlet through the through hole; the check valve is mounted in the through hole; the separating plate and the inner wall of the first end of the housing are arranged at an interval, so that a buffering air chamber which communicates with the airoutlet is formed between the separating plate and the inner wall of the first end of the housing; the buffering air chamber communicates with an air outlet hole; when the motor drives the transmissionassembly and further drives the diaphragm pump to act, the air pumped by the diaphragm pump is buffered through the buffering chamber and then is exhausted through the air outlet. Therefore, the flowing air can be certainly buffered, and the fluctuation of air pressure can be reduced, and as a result, air can be stably exhausted through the air outlet.
Description
technical field [0001] The invention relates to the technical field of medical instruments, in particular to an air pump and an electronic sphygmomanometer. Background technique [0002] Electronic sphygmomanometer is a medical device that uses modern electronic technology and the principle of indirect blood pressure measurement to measure blood pressure. The electronic sphygmomanometer uses the oscillometric method to measure blood pressure. Specifically, it relies on the instrument to identify the small pulse transmitted from the arm to the cuff, and differentiates it. After multiple processing, an envelope that can reflect the peak value of the pulse is formed, thereby obtaining Blood pressure value. [0003] The step-up oscillometric method needs to pressurize at a constant speed when measuring blood pressure, and the blood pressure is measured during the pressurization process. [0004] figure 1 Shown is the structure of the existing air pump 001, the motor 002 is se...
Claims
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IPC IPC(8): F04B45/047F04B39/12F04B39/00F04B39/10A61B5/0225
CPCF04B45/047F04B39/121F04B39/0055F04B39/10A61B5/0225
Inventor 王鹏陈龙
Owner DONGGUAN KANGZHU MEDICAL TECH CO LTD