Method for finely adjusting air pressure of piston pump of breast pump
A technology for piston pumps and breast pumps, applied to breast pumps, etc., can solve problems such as the inability to fine-tune the air pressure, and achieve the effect of improving the ability of precise control
Pending Publication Date: 2022-07-29
广州布布健康科技有限公司
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Problems solved by technology
If you want to have a slight massage effect on the breasts, you need a small negative air pressure, and the pumping and exhausting action frequency is faster. At this time, you need to detect the air pressure value and accurately control the movement of the valve and piston. However, the existing piston pumps are all operated by pistons. When the limit switch is touched at the bottom of the cylinder, the valve can close and deflate. It is a fixed negative pressure value, and the function of fine-tuning the air pressure cannot be realized.
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[0025] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present patent will be described in further detail below with reference to the accompanying drawings.
[0026] like figure 1 As shown, the first embodiment of the present invention provides a method for fine-tuning the air pressure of a breast pump piston pump. The diaphragm contracts and the breast shield is pressed against the breast, thereby creating a negative pressure in the breast shield to achieve breast pumping. The breast pump is provided with a circuit board, which is respectively electrically connected with a chip, a motor, a pressure sensor and an exhaust solenoid valve. The bottom of the cylinder of the piston pump is connected to the pressure sensor and the exhaust solenoid valve. The control process includes: setting the gear position of the piston pump, corresponding to different working modes, and controlling the motor to drive the piston movement ...
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The invention discloses a method for finely adjusting the air pressure of a piston pump of a breast pump, which comprises the following steps of: communicating an air cylinder of the piston pump with a pressure sensor and an exhaust electromagnetic valve, detecting the air pressure change in the air cylinder in real time through the pressure sensor when a piston of the piston pump exhausts and extracts air back and forth, and adjusting the air pressure of the piston pump according to a set working mode. And the exhaust electromagnetic valve switch is controlled to adjust the air pressure. According to the method, the air pressure change in the air cylinder can be detected in real time through the pressure sensor according to the use requirements, the air pressure is accurately adjusted, and the comfortable requirements of different crowds for the milk suction negative pressure are met.
Description
technical field [0001] The patent relates to the field of piston pumps, in particular to a method for fine-tuning the air pressure of a piston pump of a breast pump. Background technique [0002] At present, the breast pumps on the market are divided into the use of diaphragm pumps or piston pumps to pump and deflate to achieve breast pumping. For example, in a breast pump using a piston pump, its cylinder is connected to the tee part of the breast shield through an air duct. The first port of the tee part is a large bell mouth attached to the breast, and the second port is connected to the milk storage bottle below. The third port is connected to the airway through a three-way diaphragm, and a negative pressure is provided by a piston pump to control the contraction of the three-way diaphragm, thereby forming a negative pressure in the breast shield to realize breast pumping. [0003] The patent name is a pressure relief device system and method for releasing pressure in a...
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IPC IPC(8): A61M1/06
CPCA61M1/06A61M1/062A61M2205/3331A61M2205/3327
Inventor 郭小军魏钰成
Owner 广州布布健康科技有限公司