Overflow protection cup and negative pressure regulator

Abstract

The invention relates to an overflow protection cup and a negative pressure regulator. The overflow protection cup comprises a main body, an isolation body, an inner core body, a filter and a floater. The main body comprises an accommodating portion and a clamping portion, a bottom plate of the accommodating portion is provided with a second inlet, and a protrusion block surrounding a lower port is arranged on the upper end face of the bottom plate. The isolation body comprises an isolation portion and a channel convex block arranged along the outer edge of the isolation portion, and a supporting convex block is arranged on the upper end face of the bottom plate of the isolation body. The inner core body comprises a cover plate and a limit tube arranged on the lower end face of the cover plate, a limit column is arranged on the inner side of the limit tube, the limit column protrudes out of the lower end face of the limit tube downward, and the cover plate is provided with a second outlet. The isolation body is arranged in the accommodating portion and located on the protrusion block, the inner core body is arranged in the isolation portion, the cover plate is higher than the upper end face of the isolation body and is covered at the upper end of the accommodating portion in sealing mode, the floater is arranged in the limit tube and located above the limit convex block, and the filter is arranged on the clamping portion in detachable mode. The overflow protection cup is low in use cost and environment-friendly.

Description

【Technical field】 [0001] The invention relates to an overflow protection cup and a negative pressure regulator using the overflow protection cup. 【Background technique】 [0002] China's disclosed application number is 200720074917.1, and the name is an invention of a multifunctional medical negative pressure regulator, which is attached Figure 10 The multifunctional medical negative pressure regulator, overflow protection cup and collection bottle connected in sequence are given in , specifically, the inlet of the multifunctional medical negative pressure regulator is connected with the outlet of the overflow protection cup, and the inlet of the overflow protection cup It is connected with the outlet of the collection bottle; the working principle of these three devices is: the outlet of the multifunctional medical negative pressure regulator is connected with a negative pressure system, the inlet of the collection bottle is connected with the patient, and the negative press...

AI Technical Summary

Problems solved by technology

[0003] However, since the filter is built into the overflow protection cup, ordinary users cannot disassemble and clean the overflow protection cup during use.

Therefore, the current overflow protection cups are all disposable as a whole. After use, the entire cup must be replaced in a complete set, and the cost of use is high; and the dirty liquid is easy to overflow, resulting in cross-contamination and difficult environmental protection.

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