Drain switch and urine collection bag using drain switch

Abstract

The invention relates to a drain switch and a urine collection bag using the drain switch. The drain switch comprises a valve body and a valve core. The valve body comprises a vertical passage for discharging liquid and a transverse passage communicating with and intersecting with the vertical passage. The valve core is a piston guided to be inserted in the transverse passage. The piston is provided with a liquid flow passage for forming a valve port. The flow area of the liquid flow passage is changed from small to large in an opening movement direction of the piston to make the liquid flow amount change from small to large when the piston is opened. A coil spring is disposed between the inner end surface of the piston and the corresponding end of the transverse passage. The coil spring is used for applying an acting force to the piston to move the piston toward a closed position. With the above technical scheme, the change of the flow area when the piston is opened can be realized bychanging the flow area of the liquid flow passage, thereby realizing the change of the liquid flow amount from small to large, and compared with the prior art, the drain switch is capable of better control of liquid flow rate in the early stage when the piston is opened and avoiding splashing of liquid.

Description

technical field [0001] The invention relates to a liquid discharge switch and a urine collection bag using the liquid discharge switch. Background technique [0002] The urine collection bag, also known as the drainage bag, is used to collect the fluid in the patient's body and draw the collected fluid outward. It is mainly used for patients with urinary incontinence, paralysis, long-term bed rest, and corresponding surgical patients. A typical urine collection bag in the prior art mainly includes a bag body for storing liquid, a suspension device connected above the bag body, a drain switch (also called a drain valve) connected below the bag body, and the like. When in use, the urine collection bag is fixed on the patient’s body or near the hospital bed through a suspension device, and the liquid inlet pipe is connected to the liquid inlet pipe joint above the bag body or directly arranged on the bag body, and the liquid inlet pipe is connected with the drainage from the pa...

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a liquid discharge switch to solve the problem that liquid splashes easily occur when the existing liquid discharge switch discharges liquid. At the same time, the present invention also provides a urine collection bag using the liquid discharge switch to solve the problem of The problem that the existing urine collection bag is easy to cause pollution when it is drained

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