Easy-to-operate valve connector

An easy-to-operate valve connector, comprising:

• a housing having a sliding slot along an axial direction of an axis, wherein the housing is provided with a first end and a second end opposite to the first end along the axis, wherein the housing is further provided with a side passage communicating with the sliding slot along a radial direction of the axis, and wherein an inner periphery of the sliding slot is provided with a pressure relief portion disposed between the side passage and the first end;
• and
• a valve sleeve slidably disposed within the sliding slot along the axial direction of the axis between a pressure-retaining position and a pressure-relief position, wherein an outer periphery of the valve sleeve is provided with a first sealing portion and a second sealing portion, wherein the first sealing portion and the second sealing portion are in constant contact with the inner periphery of the sliding slot, wherein the second sealing portion is disposed between the side passage and the second end;
• wherein when the valve sleeve is in the pressure-retaining position, the pressure relief portion is moved to a side of the first sealing portion opposite to the side passage;
• wherein when the valve sleeve is in the pressure-relief position, the pressure relief portion is moved between the first sealing portion and the side passage, allowing air inside the housing to be released to the exterior of the housing through the pressure relief portion.