Connector convenient to use

The utility model relates to the field of connecting devices, and particularly discloses a connector convenient to use. The connector convenient to use is composed of an unlocking key, a clamping sleeve, a clamping spring, a limiting part, a sealing ring and a main support. The main support is provided with an outer clamping ring, one end of the main support is embedded into an interlayer of the clamping sleeve, and the sealing ring is installed in the inner hole of the main support. The limiting part is arranged in the inner ring of the clamping sleeve in a buckled mode. The clamping spring is located in the clamping sleeve. The unlocking key is inserted into a through hole of the clamping sleeve so as to be buckled into the through hole in a matched mode. A water pipe is inserted into the connector and the pipe-limiting part of the main support, the clamping spring clamps and presses the water pipe, and therefore the water pipe and the connector can be fixedly connected. In use, the water pipe just needs to be inserted into the connector and enters one end of the connector and the pipe-limiting part of the main support, and then the water pipe and the connector can be fixedly connected; because the water pipe is clamped and pressed by the clamping spring and located, just the unlocking key needs to be pressed when the water pipe needs to be retreated, then the clamping spring can loosen the water pipe, and the water pipe can be loosened.