Blockage detection device

A detection device and a support technology, which can be applied in the direction of measuring the acceleration and deceleration rate of the fluid, the fluid pressure measurement involving the displacement of the magnet, and the liquid tightness measurement using the liquid/vacuum degree, which can solve the problem of wear and long-term work reliability. , the detection device is expensive and other problems, to achieve the effect of low cost and high reliability

Active Publication Date: 2015-01-21
刘仲馨
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

There are many ways to use pressure detection mechanism for pressure detection, most of which use force sensor, but the above-mentioned detection device is expensive, requires mechanical contact, is easy to cause wear, and has low reliability in long-term operation

Method used

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  • Blockage detection device

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Embodiment Construction

[0014] Such as figure 1 As shown, a blockage detection device described in the embodiment of the present invention includes a support 1, a panel 2 and a PCB board 3 are respectively provided at the left end and the right end of the support 1, and a sliding sleeve is provided at the middle of the left end of the support 1 8. The sliding sleeve 8 is clamped on the groove in the middle of the support 1. The transmission mechanism 4 is arranged inside the sliding sleeve 8, and the pipeline 6 is fixed between the transmission mechanism 4 and the fixed block 5 on the left side of the transmission mechanism 4. , the transmission mechanism 4 and the fixed block 5 extrude the pipeline 6 into an oval shape, the middle part of the PCB board 3 is provided with a Hall element 7, the transmission mechanism 4 extends into the support 1, and the two end faces of the support 1 are respectively There is a groove, the middle part of the transmission mechanism 4 is provided with a spring 9, the s...

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Abstract

The invention relates to a blockage detection device, which comprises a support and a panel. The panel and a printed circuit board (PCB) are respectively arranged at the left end and the right end of the support. A sliding sleeve is arranged at the central part of the left end of the support. A transmission mechanism is arranged in the sliding sleeve. A fixed block is arranged on the left side of the transmission mechanism. A pipeline is fixedly arranged between the transmission mechanism and the fixed block. A Hall element is arranged at the central part of the PCB. The transmission mechanism stretches into the support. A spring is arranged at the central part of the transmission mechanism. The right end of the transmission mechanism is connected with a permanent magnet. A permanent magnet sleeve is arranged on the external side of the permanent magnet. The blockage detection device has the beneficial effects that since the relation between the pressure change of the pipeline and the output signal of the linear Hall element is monotonous, the pressure change situation and trend of the pipeline can be conveniently calculated by the detection system; and a linear Hall sensor, fixed parts and movable parts adopted can be obtained very easily at a low cost and the reliability of the device is high.

Description

technical field [0001] The invention relates to a blockage detection device. Background technique [0002] At present, the gravity infusion method is mainly used for infusion, and its disadvantage is that the accuracy is low, and the infusion pipeline needs to be observed at any time to avoid the situation that endangers the patient. In order to perform infusion more accurately, ensure the safety of infusion, and reduce the workload of nurses, various infusion pumps have begun to be widely used. When using an infusion pump, one of the important detection functions is to detect the pressure change in the infusion pipeline in real time. This pressure detection is completed by the pressure detection mechanism. Therefore, the pressure detection mechanism occupies an important position in the overall structure of the infusion pump. Location. There are many ways to use pressure detection mechanism for pressure detection, most of which use touch force sensor, but the above detect...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M3/28G01L9/14A61M5/00
Inventor 刘仲馨
Owner 刘仲馨
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