Pipe joint anti-blocking device for negative pressure sealing drainage

Abstract

The invention discloses a pipe joint anti-blocking device for negative pressure sealing and drainage. The anti-blocking device is powered by a battery, and is composed of a rigidly connected short tube and a nozzle of a suction tube and a nozzle of a drainage tube respectively arranged at two ends thereof. The pipe joint is located between the iron core coil and the permanent magnet. The elastic pad of the pressure measuring hole and the elastic pad of the via hole can respectively tighten the suction tube and the drainage tube; when the piezoelectric film on the surface of the elastic pad of the pressure measuring hole detects the pressure of the suction tube During normal working vibration or impact vibration, the program-controlled amplifier drives the electronic switch to close, and the magnetic poles of the electromagnetic field generated by the electrification of the iron core coil are mirror-symmetrical to the polarity of the permanent magnet poles, and the permanent magnet is separated from the iron core coil by magnetic repulsion; When the joint is blocked, the program-controlled amplifier drives the electronic switch to disconnect, and the electromagnetic field disappears. Due to the gravitational force between the permanent magnet and the iron core, the permanent magnet slides and hits the iron core coil, so that the radial sides of the pipe joint are pinched and bumped. Clamping and bumping realizes anti-blocking vibration of pipe joints.

Description

technical field [0001] The invention relates to a pipe joint anti-blocking device for negative pressure sealing drainage, in particular to a pipe joint anti-blocking device provided between a small flow suction tube and a drainage tube used in the medical industry. Background technique [0002] Portable low-flow medical electric suction devices and other medical equipment have been widely used as low-cost, low-pressure, low-flow drainage in medical occasions such as closed trauma drainage. into the storage bottle. [0003] At present, clinical medical suction pipelines usually use rigid connection short tubes and flexible silicone tubes butt joints. The pipe joints and nearby pipelines are frequently blocked by dirt. It is often necessary to manually remove the blockage after manually confirming that the pipeline is blocked. The situation not only requires medical staff to monitor the whole process of suction, which increases their labor intensity, but also easily delays th...

AI Technical Summary

Problems solved by technology

[0003] At present, clinical medical suction pipelines usually use rigid connection short tubes and flexible silicone tubes butt joints. The pipe joints and nearby pipelines are frequently blocked by dirt. It is often necessary to manually remove the blockage after manually confirming that the pipeline is blocked. The situation not only requires medical staff to monitor the whole process of suction, which increases their labor intensity, but also easily delays the timing of treatment for patients; the dual-roller blockage removal device controlled by a single-chip microcomputer that has appeared at present uses timing extrusion flexible pipelines to remove blockages, and its mechanical structure Complicated and cannot directly extrude rigid pipe joints

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