55results about How to "Plug and unplug smoothly" patented technology

Disclosed is a manufacturing method of a multilayer circuit board. The method comprises the following steps: providing a circuit board substrate comprising a first copper foil layer and a second copper foil layer at outermost two sides, wherein the circuit board substrate comprises a second area; forming multiple conductive through holes electrically connected with the first copper foil layer and the second copper foil layer in the second area; manufacturing the first copper foil layer and the second copper foil layer to form a first conductive line pattern and a second conductive line pattern, wherein the first conductive line pattern comprises multiple conductive terminals in the second area, the second conductive line pattern comprises multiple electroplated connecting lines in the second area, and each conductive terminal is electrically connected with one electroplated connecting line through one conductive through hole; forming coverage film layers at the two sides of the circuit board substrate, wherein the coverage film layer disposed at the surface of the first conductive line pattern is provided with openings, and the multiple conductive terminals are exposed out of the openings; and forming a gold-plated layer on the surfaces of multiple conductive terminals. According to the invention, each electroplated connecting line is disconnected through a laser ablation mode, and the multilayer circuit board is formed accordingly. The invention also provides a multilayer circuit board formed by use of the manufacturing method of the multilayer circuit board.

The invention discloses an insulating connecting seat capable of being plugged and pulled underwater, a connector and an implementation method. The connecting seat comprises a shell, a circuit board,a plurality of inserting and pulling mechanisms and an insulating partition plate; each inserting and pulling mechanism comprises a first groove, two pieces of first elastic rubber, a protective material, a second groove and two pieces of second elastic rubber; a jack is respectively arranged in the bottoms of the first groove and the second groove, and the joints between the two jacks and the twopieces of first elastic rubber and the joints between the two pieces of second elastic rubber are located on the same central axis so as to be used for a matched connector to access a circuit board.The connector is matched with the connecting seat for use and comprises a wire, a plug and a connecting end which are connected in sequence; the connecting end can be inserted to the shell and the endsurface is connected with the circuit board. The connecting seat and the plug are matched for use and can be directly plugged and pulled underwater; moreover, the service life is long. The connectingseat and the connector can be popularized and applied.

The invention discloses an isolation plug and a venous indwelling needle with the isolation plug. The isolation plug is an elastic body which punctures or is pulled away from a needle tube; after the isolation plug is involved into the needle tube in a puncturing mode, a puncture passage of the needle tube is formed in the isolation plug, is wrapped with the periphery of the needle tube, and has the pressing and holding force on the tube wall of the needle tube, and a gap is reserved between the puncture passage and the tube wall of the needle tube. The isolation plug and the venous indwelling needle have the advantages that the gap is reserved between the puncture passage and the tube wall of the needle tube, the contact area between the tube wall of the needle tube and the puncture passage is reduced through the gap, and therefore the friction force between the needle tube and the wall of the isolation plug is reduced; a passage of the isolation plug has deformation space, the pressing and holding force of the wall of the isolation plug to the needle tube is reduced, and therefore the friction force is further reduced; a lubricating agent exists in the passage, so that the needle tube can be plugged and unplugged more smoothly; the elastic isolation plug is adopted, so that the higher return function is achieved; after the needle tube retreats back, a puncture hole will instantly disappear, and therefore blood backflow and medicine liquid leakage are effectively prevented.

The invention discloses a clutch type clock and keys. The lock comprises a clutch type lock cylinder, a transmission mechanism and a lock sleeve, the keys are matched with the lock cylinder, the transmission mechanism comprises an inner sleeve, a lifting pin, a limiting pin and a clutch pin, the lock cylinder rotates to form a clutch through groove, the lower portion of the clutch pin enters the clutch through groove after the clutch pin is pressed by the lifting pin, the upper portion of the clutch pin is located in a strip-shaped hole of the clutch pin of the inner sleeve, and unlocking is achieved through linkage of the lock cylinder and the inner sleeve; when the lock cylinder rotates reversely to be locked, the limiting pin limits the inner sleeve to rotate continuously, the lock cylinder continuously rotates reversely to make the lower portion of the clutch pin pressed into the strip-shaped hole of the clutch pin, the upper portion of the clutch pin enters a groove of the lock sleeve, and linkage of the lock cylinder and the inner sleeve is removed. According to the clutch type clock and the keys, the lock cylinder is further improved, and the lock cylinder comprises the multiple coding plates. The clutch type clock and the keys have the advantages that the structure is simple, the transmission is stable when the lock is unlocked or locked, the coding information content of the lock cylinder is large, and the capacity of controlling technical opening is strong.

An image forming device (10) is provided with a toner replenishing section (40), a waste toner recovery section (80), and a toner container (41). The toner container is configured so as to be capableof being removably mounted to each of the toner replenishing section and the waste toner recovery section. The toner container has: a first lever (61) which can be switched to a first position (P1) and to a second position (P2); and a second lever (62) which can be switched to a third position (P3) and to a fourth position (P4). The toner replenishing section has: a first operation section (101) which, in a process in which the toner container is mounted to the toner replenishing section, prevents the mounting of the toner container; and a second operation section (121) which switches the second lever to the fourth position. The waste toner recovery section has: a third operation section (102) which, in a process in which the toner container is mounted to the waste toner recovery section,prevents the mounting of the toner container; and a fourth operation section (142) which switches the first lever to the second position.

The embodiment of the invention relates to a hard disk assembly, a computer case assembly and a server device. The hard disk assembly comprises a hard disk and an adaptor. The hard disk comprises a first end and a first side, wherein the first end extends in the direction perpendicular to the length direction of the hard disk, the first side extends in the direction perpendicular to the direction of the width direction of the hard disk, and a hard disk interface is formed in the first end of the hard disk; the adaptor comprised a first interface and a second interface, the first interface and the second interface are electronically connected with each other, the first interface is inserted into the hard disk interface, and the second interface is close to the first side of the hard disk so as to be used for being electrically coupled to other parts.

The invention discloses a wringing mop bucket for a flat mop and belongs to the technical field of cleaning supplies. The wringing mop bucket comprises a bucket body, wherein the bucket body comprisesa cleaning area and a wringing area which are not communicated; a water retaining cover is arranged in the wringing area and is provided with a wringing port allowing the flat mop to penetrate through, a wringing strip for wringing a wiping article of the flat mop and propping parts opposite to the wringing strip are arranged at the wringing port, an oblique water guide slope is formed on the upper surface of the wringing strip, an upper drainage port communicated with the cleaning area is formed in the bottom end of the water guide slope, and the positions, used for propping a panel of the flat mop, of the propping parts are propping ends. The mop bucket is provided with the wringing strip integrally formed with the water retaining cover, the stability during wringing is guaranteed, thewater guide slope formed by the oblique wringing strip can drain wringed water out of the upper drainage port, wringing is completed by propping the panel of the flat mop with swing arms, fluctuationof the wringing strip can be effectively reduced, and the wringing effect is improved.

The invention belongs to a magnetic suspension portable socket for electrical accessories, in particular to a magnetic suspension portable socket which acts through the principle that the repulsion force of like poles of permanent rubber magnetic rings and the attraction force of opposite poles of the permanent rubber magnetic rings and is provided with double child electrical shock prevention protection doors. According to the magnetic suspension portable socket, an electrode contact piece is suspended in a bushing and a shell through the attraction force and the repulsion force of the permanent rubber magnetic rings and face jacks on the shell; the contact surface of the electrode contact piece and a plug is clamped by utilizing magnetic push, and various power consumption requirements are met when the plug is plugged into the socket; the traditional resilience force of a copper sheet is replaced by magnetic force, and the tightness of the plug and the electrode contact piece is guaranteed; and the magnetic force can be kept about 60 to 70 years, and the service life of the socket is obviously prolonged. Due to the unique double-door design of child electrical shock prevention protection doors, the magnetic suspension portable socket is uniform in component force and long in service life.

The invention relates to an underwater detection air inlet leakage-preventing device of a fuel oil tank. An air injection pipe is inserted into an upper end opening of an oil injection pipe; a rubber sleeve is arranged between the air injection pipe and the oil injection pipe; the lower end opening of the air injection pipe is rotationally connected with a mushroom-head screw; through holes are formed in the mushroom-head screw; the lower end face of the rubber sleeve leans against a flange of the mushroom-head screw; an expansion mechanism is arranged at the upper end of the air injection pipe. The expansion mechanism comprises a cylinder sleeve and an inner disc; the lower end of the inner disc is located in the cylinder sleeve; a locking air cavity is arranged between the lower end face of the inner disc and a bottom plate of the cylinder sleeve; the upper end of the air injection pipe penetrates through a central hole of the bottom plate and is connected with the center of the lower end face of the inner disc to form a whole body; the upper end opening of the cylinder sleeve is provided with a limiting clamping spring which is clamped on a necking down part on the middle of the inner disc, in an embedding manner; the inner disc is rotationally connected with an air pipe connector I and an air pipe connector II which are communicated with the central hole of the air injection pipe by an oil tank air inlet hole channel respectively, and are communicated with the locking air cavity by a cylinder body air inlet hole channel. The device can be smoothly inserted into and pulled out from the oil injection pipe and the reliable sealing also can be realized.