A contact element for inserting a mating contact element along an insertion direction. The contact element includes an insertion opening for inserting the mating contact element and at least one contact lamella for electrically contacting the mating contact element, and a clamping sleeve that is displaceable along the insertion direction, relative to the at least one contact lamella, between a first position and a second position. The clamping sleeve and the contact lamella are in an operational relationship with one another such that when the clamping sleeve moves from the first position into the second position, the contact lamella is moved in a radial direction perpendicular to the insertion direction. The clamping sleeve includes a run-up element, which in a projection along the insertion direction through the insertion opening at least partially covers the insertion opening.

A cable locking device includes a first part and a second part. The first part includes a first cavity for receiving a first electrical wire and a second cavity. The second part includes a first cavity for receiving a second electrical wire and a projection. The projection is configured to be inserted into the second cavity of the first part. A first channel is formed within the second cavity of the first part and extends from an opening of the second cavity. A second channel is formed within the second cavity of the first part and is connected to the first channel and extends in a transverse direction of the first channel. A pin is formed on the projection of the second part and is configured to fit within the first channel and the second channel of the first part. The pin is configured to engage sidewalls of the second channel so as to frictionally hold into place the pin with respect to the second channel to connect the first part to the second part.

A cable locking device includes a first part and a second part. The first part includes a first cavity for receiving a first electrical wire and a second cavity. The second part includes a first cavity for receiving a second electrical wire and a projection. The projection is configured to be inserted into the second cavity of the first part. A first channel is formed within the second cavity of the first part and extends from an opening of the second cavity. A second channel is formed within the second cavity of the first part and is connected to the first channel and extends in a transverse direction of the first channel. A pin is formed on the projection of the second part and is configured to fit within the first channel and the second channel of the first part. The pin is configured to engage sidewalls of the second channel so as to frictionally hold into place the pin with respect to the second channel to connect the first part to the second part.

A high-current high-frequency electrical connector plug applicable to network data transmission includes a plug housing and a bayonet socket integrated in an inserted manner. The bayonet socket includes an upper terminal block, a lower terminal block and an insulating plastic body. An insertion cavity for placing a socket tongue of an electrical connector receptacle is formed in the insulating plastic body. The upper terminal block and the lower terminal block are inserted and fixed into the insertion cavity respectively. The periphery of the plug housing is sequentially provided with a left rounded part, a right rounded part, a left chamfered part and a right chamfered part. Specific sizes of the left rounded part and the right rounded part need to be controlled.

A high-current high-frequency electrical connector plug applicable to network data transmission includes a plug housing and a bayonet socket integrated in an inserted manner. The bayonet socket includes an upper terminal block, a lower terminal block and an insulating plastic body. An insertion cavity for placing a socket tongue of an electrical connector receptacle is formed in the insulating plastic body. The upper terminal block and the lower terminal block are inserted and fixed into the insertion cavity respectively. The periphery of the plug housing is sequentially provided with a left rounded part, a right rounded part, a left chamfered part and a right chamfered part. Specific sizes of the left rounded part and the right rounded part need to be controlled.

A wall-mounted electrical-connector-engaging assembly for axial engagement with an electrical connector, the assembly including (a) a wall-surface adapter having front and back faces and attached to a wall over an opening in the wall and (b) a backcap. The adapter back face has a plurality of wire-connection points for installation of a corresponding plurality of wires, and the adapter front face has a plurality of slidably-engaging electrical connection points for engagement in at least an axial direction with the electrical connector. The backcap surrounds the plurality of wire-connection points and adjacent portions of the corresponding plurality of wires connected thereto, and includes a twist lock for installation on the wall-surface adapter.

A connection terminal for use with a plug-in terminal includes a terminal body and a tongue. The tongue extends from a first end of the terminal body along an axial direction of the connection terminal and defines a locking element. A first curled portion and a second curled portion are disposed oppositely on two sides of the terminal body. The first curled portion and the second curled portion define at least one first reinforcing rib and at least one second reinforcing rib, and include a first abutting portion and a second abutting portion. A plug-in space is formed between the first and second curled portions and the terminal body for receiving the plug-in terminal. With the plug-in terminal inserted into the plug-in space, the first abutting portion and the second abutting portion abut against the plug-in terminal, and the locking element locks the plug-in terminal within the plug-in space.

Disclosed is an electrical contact terminal having elasticity, which is fitted into a through-hole defined on a substrate so as to electrically connect a conductive pattern defined on the substrate to an object. A core of the electrical contact terminal includes a body part having a first width with a uniform dimension in a longitudinal direction, an insertion part having a second width with a dimension less than that of the first width and extending vertically downward from the body part, and a contact part protruding in the form of a wing from each of both sides of an end of the insertion part in a width direction, wherein the body part, the insertion part, and the contact part are provided as a single body.

Disclosed is an electrical contact terminal having elasticity, which is fitted into a through-hole defined on a substrate so as to electrically connect a conductive pattern defined on the substrate to an object. A core of the electrical contact terminal includes a body part having a first width with a uniform dimension in a longitudinal direction, an insertion part having a second width with a dimension less than that of the first width and extending vertically downward from the body part, and a contact part protruding in the form of a wing from each of both sides of an end of the insertion part in a width direction, wherein the body part, the insertion part, and the contact part are provided as a single body.

Disclosed are a cleaning system and a control method thereof. The cleaning system includes a self-propelled cleaning robot, a safety guard connector, a detector assembly; where the self-propelled cleaning robot and the safety guard connector are detachably connected with each other, and the detector assembly detect whether the self-propelled cleaning robot and the safety guard connector being connected with each other or not.