JPS6142601Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a rapid exhaust valve that is incorporated into various devices that utilize compressed air, particularly blood circulation promoters.

Repeatedly applying pressure to the body from the outside and then releasing it promotes blood circulation in the area, which improves blood circulation and is effective in treating diseases.

Blood circulation promoters that can automatically and reliably apply and release compression using compressed air as described above are well-known, but such blood circulation promoters are difficult to use because they release compressed air quickly. It is said to be effective.

The object of this invention is to provide a quick exhaust valve that can quickly and reliably release pressure in a blood circulation promoter as described above.

Next, an embodiment of this invention will be described based on the accompanying drawings.

Figure 1 shows an air bag A that is worn around the head, for example, and a quick exhaust valve B attached to the air bag A.
It uses

As shown in FIGS. 2 to 4, the quick exhaust valve B has one end of the valve box 1 connected to a compressed air supply pipe 2, and the other end provided with an opening 3 for introducing compressed air into the air bag A. ing. Further, the compressed air outlet 4 in the air bag A is deviated at a certain angle from the inlet direction of the compressed air inlet pipe 2, and therefore has a curved or inclined shape and is provided at this location.

Reference numeral 5 denotes a flexible valve membrane provided in the valve body 1, and both ends a and b are fixed in the valve body, respectively, and the slack portion is opened as shown by the solid line in FIGS. 2 to 4. It hangs down from the portion 3 to form a compressed air feeding gap C.

Further, the width of the valve leaflet 5 is approximately the same as the inner diameter of the valve box.

The quick exhaust valve B according to this invention is as described above, and its operation will be explained by incorporating it into an air bag A as shown in FIG.

Although not shown, when air is injected from the inlet pipe 2 using an air compressor or compressed air supply means, the valve membrane 5 becomes a solid line state as shown in FIGS. 2 to 4, and the air bag A Pressurize air inside. In this case, since the valve membrane 5 covers the exhaust port 4, air does not flow out from this area.

Next, when the air pressure in the air bag A becomes higher than the air pressure from the inlet pipe 2, the air in the air bag pushes the valve membrane 5 in the opposite direction, as shown by the dotted line, as shown in Figures 2 to 4. The two ports are covered and closed, and the water rapidly flows out from the outlet 4.

Next, when compressed air is forced in through the inlet pipe 2, the valve membrane 5 covers and closes the exhaust port 4 again as shown by the solid line in FIGS. 2 to 4, and air is forced into the air bag A.

As described above, according to this invention, the discharge port 4 in the valve box 1 is deviated at a certain angle with respect to the feeding direction of the feeding pipe 2.
That is, since it is sloped or curved, the outlet of the valve box 5 is completely closed when compressed air flows in, and conversely, the inlet pipe 2 is completely closed when the air bag A is discharged from the air bag A to the outlet. It is extremely effective as a rapid exhaust valve and can enhance the effect of promoting blood circulation.

[Brief explanation of drawings]

FIG. 1 is a perspective view of a quick exhaust valve attached to an air bag, and FIGS. 2 to 4 are cross-sectional views of the quick exhaust valve of this invention. B... Rapid exhaust valve, 1... Valve box, 2... Inlet pipe, 3... Opening, 4... Exhaust port, 5... Valve leaf,
a, b...Fixed end portion, C...Gap.

Claims (1)

[Scope of utility model registration request] In a blood circulation promoter that repeatedly applies pressure to the body from the outside via an air bag or the like and then releases this pressure, the valve box used in the blood circulation promoter is:
One end is connected to the compressed air inlet pipe, the other end is connected to the air bag, and the valve box discharges the compressed air from the air bag by deviating the outlet at a certain angle from the insertion direction of the insertion pipe. A band-shaped flexible valve leaflet having both ends fixed is provided in the valve box, and the flexible valve leaflet has a width substantially the same as the inner diameter of the valve leaflet. Rapid exhaust valve.