Abstract: An electrical connector includes an insulating body having a main body and a mating portion. The main body includes a base and an insertion portion extending forward from the base. The mating portion protrudes forward out of the insertion portion. A metal latch member is mounted on the main body and provided with a latch portion to latch a mating connector. Multiple conductors are respectively received in the mating portion. Multiple cables are electrically connected to the conductors. An assisting member is fixed to the base and extending forward relative to the base. A first position limiting slot is formed between the assisting member and the mating portion. A second position limiting slot is formed between the assisting member and the insertion portion, and is in communication with the first position limiting slot. The latch portion is upward exposed out of the assisting member.

Abstract: An electrical connector includes an insulating body having a main body and a mating portion. The main body includes a base and an insertion portion extending forward from the base. The mating portion protrudes forward out of the insertion portion. A metal latch member is mounted on the main body and provided with a latch portion to latch a mating connector. Multiple conductors are respectively received in the mating portion. Multiple cables are electrically connected to the conductors. An assisting member is fixed to the base and extending forward relative to the base. A first position limiting slot is formed between the assisting member and the mating portion. A second position limiting slot is formed between the assisting member and the insertion portion, and is in communication with the first position limiting slot. The latch portion is upward exposed out of the assisting member.

Abstract: An apparatus for pre-loading a mechanical constant-resistance single prop includes a rhombic stretchable bracket, a screw rod, a first cylindrical sleeve ring, and a second cylindrical sleeve ring. The screw rod is connected to two opposite apex corners of the rhombic stretchable bracket. A tail end of the screw rod is fixedly connected to one apex corner of the rhombic stretchable bracket. An end head of the screw rod passes through another apex corner of the rhombic stretchable bracket. The remaining two opposite apex corners of the rhombic stretchable bracket are respectively fixedly connected to edges of the first cylindrical sleeve ring and the second cylindrical sleeve ring through connecting rods. The screw rod is threadedly connected to the apex corner of the rhombic stretchable bracket through which the screw rod passes. A method for pre-loading a mechanical constant-resistance single prop is also provided.

Abstract: An electrical connector assembly includes an electrical connector and a mating connector that are mutually inserted. The mating connector includes a socket and a metal shell having an insertion end protruding from the socket formed with an opening. The electrical connector includes an insulating body and an assisting member. The insulating body includes a main body and a mating portion. An upper surface of the main body is higher than that of the mating portion. An interface is formed in the front end of the main body and is positioned behind the socket. The mating portion is smaller than the opening. The assisting member covers the insulating body. A front end of the assisting member guides the insertion of the insertion end. An accommodation space is formed between the assisting member and the main body to receive only the metal shell.

Abstract: An electrical connector includes an insulating body having a base portion, which includes a mating chamber enclosed by a top plate, a bottom plate and two side plates. The mating chamber allows a insertion portion of a mating connector to insert backward therein. The top and bottom plates are provided with multiple accommodating grooves. A projection protrudes from each side plate. The projection has a highest point higher than the mating chamber, and a lowest point lower than the mating chamber. Multiple terminals are correspondingly accommodated in the accommodating grooves. A shielding shell has a top wall and two side walls. A mating port is enclosed by the top wall and front ends of the two side walls and located in front of the projection, and is larger than the mating chamber. Each side wall is respectively and correspondingly provided with a fitting portion to fit with the projection.

Abstract: An apparatus for pre-loading a mechanical constant-resistance single prop includes a rhombic stretchable bracket, a screw rod, a first cylindrical sleeve ring, and a second cylindrical sleeve ring. The screw rod is connected to two opposite apex corners of the rhombic stretchable bracket. A tail end of the screw rod is fixedly connected to one apex corner of the rhombic stretchable bracket. An end head of the screw rod passes through another apex corner of the rhombic stretchable bracket. The remaining two opposite apex corners of the rhombic stretchable bracket are respectively fixedly connected to edges of the first cylindrical sleeve ring and the second cylindrical sleeve ring through connecting rods. The screw rod is threadedly connected to the apex corner of the rhombic stretchable bracket through which the screw rod passes. A method for pre-loading a mechanical constant-resistance single prop is also provided.

Abstract: An electrical connector includes an insulating body having a base portion, which includes a mating chamber enclosed by a top plate, a bottom plate and two side plates. The mating chamber allows a insertion portion of a mating connector to insert backward therein. The top and bottom plates are provided with multiple accommodating grooves. A projection protrudes from each side plate. The projection has a highest point higher than the mating chamber, and a lowest point lower than the mating chamber. Multiple terminals are correspondingly accommodated in the accommodating grooves. A shielding shell has a top wall and two side walls. A mating port is enclosed by the top wall and front ends of the two side walls and located in front of the projection, and is larger than the mating chamber. Each side wall is respectively and correspondingly provided with a fitting portion to fit with the projection.

Abstract: An electrical connector assembly includes an electrical connector and a mating connector that are mutually inserted. The mating connector includes a socket and a metal shell having an insertion end protruding from the socket formed with an opening. The electrical connector includes an insulating body and an assisting member. The insulating body includes a main body and a mating portion. An upper surface of the main body is higher than that of the mating portion. An interface is formed in the front end of the main body and is positioned behind the socket. The mating portion is smaller than the opening. The assisting member covers the insulating body. A front end of the assisting member guides the insertion of the insertion end. An accommodation space is formed between the assisting member and the main body to receive only the metal shell.

Abstract: A method and system of teaming via a social network service for activity coaching include creating a stage model that comprises a first and second stages, wherein a value of a performing parameter for use in the first stage is less than a value of the performing parameter for use in the second stage; receiving initial activity data of users at social network service; determining users involved in the first stage according to initial activity data; teaming the users involved in the first stage; communicating to users via social network service the value of the performing parameter for use in the second stage; setting a team goal to achieve the value; waiting for feedback from the users; determining whether the team goal is achieved; moving the users in the same team to the second stage; and providing rewards to the users, if the determination is affirmative.