Waterproof cover, connection device and mobile terminal

A connection device, comprising:

• a waterproof cover, comprising:
• a water blocking portion, configured to surround a periphery of a connector;
• and
• a sealing portion, fastened to an end of the water blocking portion, and configured to be sleeved on a tail end of the connector to seal the tail end of the connector, to block water in a space between the water blocking portion and the connector;
• and
• the connector, configured to fit into the water blocking portion of the waterproof cover, wherein the tail end of the connector passes through the sealing portion of the waterproof cover and is configured to be connected to a conductive wire,
• wherein the connector further comprises:
• a head end opposite to the tail end of the connector and an insertion board extended from the head end to the tail end of the connector, the insertion board being provided with a through hole and an elastic piece extending outward from an inner sidewall of the through hole, the inner sidewall of the water blocking portion being provided with a groove matching the elastic piece, and the elastic piece being configured to, when an external plug is inserted into the connector, press against the external plug to stabilize a connection between the external plug and the connector.

A mobile terminal, comprising:

• a connector, comprising a head end having an opening and a tail end electrically connected to a main board;
• a waterproof cover for the connector, comprising:
• a water blocking portion, configured to surround a periphery of the connector;
• and
• a sealing portion, fastened to an end of the water blocking portion, and configured to be sleeved on the tail end of the connector to seal the tail end of the connector, to block water in a space between the water blocking portion and the connector;
• and
• a housing having an aperture,
• wherein the connector passes through the aperture, and the sealing portion seals the aperture;
• and
• wherein the connector further comprises:
• the head end opposite to the tail end of the connector and an insertion board extended from the head end to the tail end of the connector, the insertion board being provided with a through hole and an elastic piece extending outward from an inner sidewall of the through hole, the inner sidewall of the water blocking portion being provided with a groove matching the elastic piece, and the elastic piece being configured to, when an external plug is inserted into the connector, press against the external plug to stabilize a connection between the external plug and the connector.