| 主权项 |
1. A versatile air-valve connecting device, comprising:
a housing, having a roughly T shape including a bottom that contains a central chamber and an upper arm contains a channel that runs through two ends thereof and is communicated with the central chamber, so that two receiving rooms are formed at two sides of the central chamber; a rotator, having a roughly lengthwise shape including a grip portion and a cam portion, the cam portion being inserted into the central chamber of the housing so that the grip portion is exposed outside the housing, the cam portion being disk-like and having a cross section including a major diameter and a minor diameter, the grip portion having an outer end axially indented to form a passage, the passage having an air hole that is open at the major diameter of the cam portion and is communicated with the channel; and two valve connectors, being received in the two receiving rooms, respectively, so as to slightly jut out into the central chamber for retaining the rotator from leaving the housing, wherein each of the two valve connectors has an air inlet that is communicated with the central chamber, wherein the rotator normally contacting the two valve connectors with the minor diameter so that the two valve connectors are in a relaxed state, and when the rotator is rotated to have the major diameter contacting the two valve connectors, the two valve connectors are slightly deformed under compression and turned into a use state for connecting a valve, where the air hole is communicated with the air inlet of one of the valve connector while the air inlet of the other valve connector is closed by the cam portion into airtightness. |
