Connector capable of preventing terminals from being inserted by mistake on inner side

The connector comprises a main frame, a first sliding groove is formed in the pinched inner wall of the main frame, a second sliding groove is formed in the position, close to the lower side of the first sliding groove, of the inner wall of the inner side of the main frame, a first limiting rod is arranged at the bottom of the inner side of the main frame, and a second limiting rod is arranged at the bottom of the inner side of the main frame. A second limiting rod is arranged at the top of the inner side of the main frame, a control hole is formed in the upper end of the main frame, a limiting hole is formed in the front side, close to the control hole, of the upper end of the main frame, a connecting groove is formed in the rear end of the main frame, and a connecting buckle is arranged on the inner side of the connecting groove. According to the connector capable of preventing the terminals from being inserted mistakenly on the inner side, the purpose of preventing reverse insertion can be achieved through