| 摘要 |
<p>The present invention relates to a portable spray for self-protection used to protect a user in an emergency. When a tear liquid is sprayed, the spray prevents the tear liquid from leaking since the spray is formed in a compression structure operated in several stages, and the tear liquid is sprayed with strong pressure, thereby improving the accuracy of hitting a target. A connection pipe having an outflow hole on the front end is coupled to one side of a vacuum pump operating body connected to a filling pipe filled with the tear liquid. A spray body for spraying the tear liquid is coupled to a portion of the connection pipe where the outflow hole is formed to form a flow path between the connection pipe and the spray body. The vacuum pump operating body is opened through compression to generate primary pressure, thereby supplying the tear liquid leaking from the filling pipe to the connection pipe. When secondary pressure is generated in the pressure pipe connected between the connection pipe and the spray body, the tear liquid is supplied to the spray body through the flow path with a high velocity and is sprayed through a spray hole. When a pressing operation is released, the vacuum pump operating body connected to the filling pipe is closed, and the compression pipe located between the connection pipe and the spray body is compressed and vacuumized to spray the tear liquid, thereby preventing the remaining tear liquid from leaking through the spray hole.</p> |
