74results about How to "Avoid reverse insertion" patented technology

The invention provides a card connector. The card connector comprises an insulating body, a plurality of conductive terminals, a shielding shell and a card withdrawing mechanism. Each conductive terminal comprises a holding part held on the insulating body, a contact part extending out of the insulating body from the holding part, and a welding part. The shielding shell forms an accommodating space. The shielding shell comprises a top plate and two side plates extending downwards from the two sides of the top plate. The card withdrawing mechanism is located in the accommodating space and abutsagainst one of the two side plates. The card withdrawing mechanism comprises a push rod and a driving part linked with the push rod. The shielding shell further comprises a fool-proof part formed byextending downwards from the side edge of the side, close to the card withdrawing mechanism, of the top plate. The fool-proof part comprises an elastic supporting part formed by extending backwards from the edge of the rear end of the fool-proof part. The elastic supporting part transversely supports the inner side surface of the push rod so as to prevent the push rod from shaking. The structuralstability is improved.

The invention provides a socket connector and a connector combination. The socket connector comprises an insulation body, a plurality of conductive terminals arranged on the insulation body, a metal shell and a slip mechanism. The metal shell is combined with the insulation body and forms a first plug space which accommodates a first plug and an entrance through which the first plug space can be entered into. The slip mechanism is arranged in the metal shell and comprises a slide block and a reset elasticity assembly connected with the slide block. The slide block can slide between a front position which is close to the entrance and a rear position which is far away from the entrance. Because of an effect of the reset elasticity assembly, the slide block is located at the front position in a normal state. The slide block is located at the front position, which means that the slide block is on one side in the first plug space. An inner side surface of the slide block and the metal shell form a second plug space which accommodates a second plug. The slide block can be pushed by the first plug and move to the rear position so as to move out of the first plug space.

A plug, adapted to be connected to a direct current (DC) outlet for supplying a DC power thereto, includes a plurality of round bar-shaped plug pins which protrudes from a front surface of a plug main body, and a surrounding wall which protrudes from the front surface of the plug main body to surround the plug pins. The plug pins are adapted to be connected the pin-receiving pieces through pin insertion holes of the DC outlet and to be supplied with power from the DC outlet. The surrounding wall is adapted to be inserted into an insertion groove of the DC outlet which is formed around the pin- insertion holes. The surrounding wall is formed in a substantially quadrangular shape, viewed from a front side thereof. The plug pins are arranged along a reference surface corresponding to one inner surface of the surrounding wall and offset closer to the reference surface than to an inner surface opposite to the reference surface.

The invention discloses abdominal muscle exercise equipment. The abdominal muscle exercise equipment comprises a supporting pipe, two rollers arranged on the supporting pipe and a speed change mechanism installed between the two rollers. Motors are fixedly installed at the two ends in the supporting pipe respectively, a circuit board and a storage battery are fixedly installed at the positions, at the outer ends of the two motors, in the supporting pipe respectively, portable power sources are installed at the two ends in the supporting pipe, and a reverse rotation button is fixedly connected to the position, close to one roller, of the outer wall of the supporting pipe. The speed change mechanism comprises a transmission base, a positioning frame and an annular gear. According to the abdominal muscle exercise equipment, rotation of the rollers can be conveniently controlled, and the situation that as the rollers roll out of control, strain of a user is caused can be prevented; the abdominal muscle exercise equipment can serve as a common abdominal exercise roller by taking out the speed change mechanism; the portable power sources in the supporting pipe can be taken out as needed to serve as a portable charger.

A plug receptacle includes a housing having at least one outlet unit to which a plug is adapted to be connected to supply a DC power to the plug, and a cable, connected to the housing, for supplying the DC power to the housing. The outlet unit includes a plug- receiving portion having a plurality of substantially circular pin- inserting holes into which plug pins of the plug are inserted and an insertion groove formed to surround a periphery of the plug-receiving portion. The plug- receiving portion has a substantially quadrangular shape viewed from a front side thereof. The insertion groove is adapted to receive a surrounding wall of the plug and has a substantially quadrangular shape viewed from the front side. The pin-receiving holes are arranged along one side of the plug- receiving portion serving as a reference side and offset closer to the reference side than an opposite side to the reference side.

The invention belongs to the technical field of new energy automobile charging, and particularly relates to a rapid charging device of a new energy automobile. The rapid charging device comprises a charging pile body. A first groove is formed in the front side wall of the charging pile body. A second groove communicating with the first groove is formed in the inner wall of the first groove. A double-shaft motor is fixedly connected to the side wall of the second groove. A square frame fixedly sleeves the outer side of the double-shaft motor. The two output ends of the double-shaft motor are respectively and fixedly connected with a first threaded rod. Circular grooves corresponding to the positions of the first threaded rods are formed in the inner wall of the second groove. One ends, far away from the double-shaft motor, of the first threaded rods are rotationally connected with the inner walls of the circular grooves. Horizontal limiting rods are fixedly connected to the left side wall and right side wall of the square frame correspondingly. The rapid charging device has the advantages that charging plug-in work can be automatically controlled and the rapid charging device can be simultaneously used for two electric automobiles, so that the space utilization rate is increased.

The invention discloses a vehicle-mounted signal socket. The vehicle-mounted signal socket comprises a base and two rows of wiring pins arranged on the base. A plurality of inserting holes are formed in the base, the bottom face of the base is provided with a positioning base, the wiring pins are parallel to the axes of the inserting holes and penetrate through the bottom face of the base and the positioning base, the bottom face of the positioning base is provided with a positioning column and a plurality of positioning holes, installing and positioning are facilitated, and stability of signal transmission is guaranteed.

The invention discloses an abdominal muscle exercise device. The abdominal muscle exercise device comprises a supporting tube, two rolling wheels arranged on the supporting tube, and a speed change mechanism arranged between the two rolling wheels, wherein motors are fixedly mounted at two ends of the inside of the supporting tube; a circuit board and a storage battery are fixedly mounted at the positions, at the outer ends of each motor, in the supporting tube; portable power supplies are mounted at two ends of the inside of the supporting tube; a reversing button is fixedly connected to theposition, close to the rolling wheels, of the outer wall of the supporting tube; the speed change mechanism comprises a transmission base, a positioning frame and an annular gear. For the abdominal muscle exercise device, the rotation of the rolling wheels can be conveniently controlled, so that the strain caused to a user due to the fact that the rolling wheels are out of control during rolling is avoided; after the speed change mechanism is taken out, the abdominal muscle exercise device can be used as a common abdomen building wheel; the portable power supplies in the supporting tube can betaken out according to requirements and used as charge pals.

The invention belongs to the technical field of accessories for plant protection drones, in particular to a power-off prevention plug for plant protection drones; it includes a socket and two matching plugs, and the socket is provided with two relatively vertical plugs. The middle part of the jack is wider than the two ends, the inner wall of the jack is provided with a conductive plate, the top of the plug is provided with an insulating seat, and the two insulating seats are connected by a herringbone frame; the present invention sets two relatively vertical And the wider jack in the middle, the two relatively vertical jacks on the socket can be inserted into two plugs connected by a herringbone frame, and two plugs with opposite polarities can only be inserted into two plugs from a fixed orientation. In the jack with a larger middle width, the plug is prevented from being inserted backwards. At the same time, the middle width of each jack is larger than the width at both ends, which can make the contact area between the plug and the conductive plate larger, and provide power for a higher-power motor. , improving the power performance of the UAV.

A multi-connection type header connector, and a stack type socket connector and a horizontal type socket connector for connection thereto A multi-connection type header connector and a stack type socket and a horizontal type socket connectors for connection to the multi-connection type header is disclosed which can accomplish reduction in both the mounting area and the height. The multi-connection type header connector (100) comprises a header housing (110) that is provided with a receiving chamber (115) that concaves from the top face (111) and extends up to an end face (113) on the front side in the depth direction and a header contact (120), of which contacting part (121) is exposed to the receiving chamber (115) and of which connecting part (122) is exposed to the periphery of the bottom face of the header housing (110). A stack type socket connector (200), which has, at one end in the height direction thereof, a protruding part (211) that is to fit into the receiving chamber (115) in the height direction, and from which, at the other end, a wire (W) is led out in a direction that crosses the height direction, and the horizontal type socket contact (300). The horizontal type connector has, at the end on the rear side in the depth direction, a protruding part (311) that fits into the receiving chamber (115) in the height direction, and from which, at the end on the front side in the depth direction, a wire (W) is led out in a direction that crosses the height direction, can be selectively connected to the header connector (100).

The invention discloses a connector. The connector comprises plugs and electric wires, wherein the plugs are connected with the electric wires, at least one plug is a flat plug, and the upper surface or the lower surface of a shell of the at least one flat plug is provided with an identifier which can be identified by touch. The connector disclosed by the invention can be prevented from being inversely inserted under a nonluminous invisible situation.

The invention relates to a multifunctional data line which comprises a wiring shell, a deconcentrator chip and a heat-dissipating fan, wherein the deconcentrator chip is arranged in the wiring shell,the top of the deconcentrator chip is connected to a USB male interface through a connecting wire, the bottom of the deconcentrator chip is separately connected to a fan switch, a first winding coil,a second winding coil, a third winding coil, a storage chip and a microphone chip, separately, one end of the fan switch is connected to the heat-dissipating fan through a connecting wire and the heat-dissipating fan is connected to the wiring shell through an air duct, an earphone interface is arranged on one side of the wiring shell, a microphone interface is arranged at the lower end of the earphone interface, one end of the first winding coil is connected to a USB3.1 female interface through a connecting wire, and one end of the second winding coil is connected to a Lightening interface through a connecting wire. The multifunctional data line is provided with various interfaces connected through USBs, has an excellent heat-dissipating property, is convenient to coil when not in use, and is suitable for popularization and use.