271results about How to "Improve connection accuracy" patented technology

The invention relates to a pulse laser synchronous riveting and welding method and a device of ultrathin plates. An upper layer of plate and a lower layer of plate are stacked and positioned on a concave mold having mold holes; a bottom mold is arranged on the concave mold; a pulse laser beam is used for acting on the upper layer of plate or an energy absorbing layer coated on the surface of the upper layer of plate to form an explosive plasma; the lower layer of plate is collided by the upper layer of plate; the upper layer of plate and the lower layer of plate generate high-strain-rate plastic flow coupling; and under the restraint of the bottom mold, the upper layer of plate and the lower layer of plate are plasticized to form rivet button shapes so as to generate mechanical interlocking for riveting. In the plastic deformation process, the pressure stress exists on the contact interfaces of the upper layer of plate and the lower layer of plate, and the high-speed sliding and the shearing deformation are generated, so that the interfaces generate the melting and the atomic diffusion, and the upper layer of plate and the lower layer of plate are welded when colliding the bottom mold. The method and the device synchronously realize the riveting and the welding of the upper layer of plate and the lower layer of plate; and joints formed by the method and the device have higher connecting strength and fatigue resistance through the compounding effect characteristic of the mechanical bonding and the metallurgic bonding.

The invention discloses a formation method of a stress layer of a CMOS device, which comprises the following steps; a tensile stress layer is formed on the surfaces of an NMOS transistor and a PMOS transistor; a positive photoresist is coated on the surface of the tensile stress layer; the positive photoresist is patterned by utilizing a mask blank so as to form a photoresist mask pattern exposing on the tensile stress layer on the surface of the PMOS transistor; the tensile stress layer on the surface of the PMOS transistor is etched and the photoresist mask pattern is removed; a compressive stress layer is sedimentated on the tensile stress layer and the surface of the PMOS transistor; a negative photoresist is coated on the surface of the compressive stress layer; the negative photoresist is patterned by utilizing the mask blank so as to form a photoresist mask pattern exposing on the compressive stress layer on the surface of the NMOS transistor; the compressive stress layer on the surface of the NMOS transistor is etched and the photoresist mask pattern is removed. The formation method of the invention can form the photoresist mask patterns of the tensile stress layer and the compressive stress layer just by using the same mask blank, thus not only reducing the manufacturing cost but also promoting the precision of connection of the tensile stress layer with the compressive stress layer.

The invention provides a compact electric servo mechanism for linear displacement. The compact electric servo mechanism comprises a support saddle, a sliding bearing, a motor connector, a motor, a motor shell, a self-aligning roller bearing, a screw support shell, a ball screw, a ball screw nut, a screw roller, a guide element, an output shaft and a sliding bearing end cover. According to the compact electric servo mechanism, the integrity of the motor structure is ensured by a combined design of the screw and the motor; the motor does not need to be independently designed; the design difficulty of the motor is reduced; the motor is directly connected with the ball screw to achieve direct drive, and the screw nut moves forwards and backwards when the motor rotates, so that the screw nut does not need to adopt the structure of a long thread hole, and a guide groove is designed on the screw nut to be used along with the guide element. Therefore, the accurate servo control of linear displacement is achieved, and the linear output of the mechanism does not need the assistance of an external structure.

The invention discloses a solar panel component and a processing technology. The solar panel component mainly comprises components, wherein the components comprise a battery piece, a glass layer, a backboard and a frame on the outer side, wherein the upper end of the battery piece is provided with a silicon nitride passivation antireflection layer; the electrode grid lines of the battery piece are formed in a way that fragmented main grid lines and grouped thin grid lines are arranged in parallel and are connected by auxiliary grid lines; and the frame comprises an integral frame and a detachable frame. By use of the solar panel component and the processing technology provided by the invention, the internal laminated structure and the external frame structure of the solar panel are improved to lower power loss, improve a photoelectric conversion rate and prolong the service life of the solar panel component.

A multi-column electron beam exposure apparatus includes: a plurality of column cells; a wafer stage including an electron-beam-property detecting unit for measuring an electron beam property; and a controller for measuring beam properties of electron beams used in all the column cells by using the electron-beam-property detecting unit, and for adjusting the electron beams of the respective column cells so that the properties of the electron beams used in the column cells may be approximately identical. The electron beam property may be any of a beam position, a beam intensity, and a beam shape of the electron beam to be emitted. The electron-beam-property detecting unit may be a chip for calibration with a reference mark formed thereon or a Faraday cup.

The invention relates to a defected-tooth implanting or restoring technology, in particular to a bushing-type oral implanting device which is characterized in that at least two grooves with openings on the upper ends are distributed on a cylindrical surface through which an implanting body is connected with a base station; the upper end of the base station is provided with lug bosses which are matched with the grooves; the combination length of the implanting body and a tubular connecting handle of the base station is nearly 1 / 2 or more of the length of the implanting body so that the implanting body can be embedded in shaped holes on the alveolar bone to shorten the operation time; the implanting body has good bone extruding effect, thus the early-stage stability and the later-stage osseointegration stability after the operation are improved, and the use effect after the healing is enhanced; the contact surface of the thread-type implanting body and the alveolar bone is enlarged, thusthe implanting body and the alveolar bone can be more firmly combined, and the implanting quality of the implanting body is improved; the base station and the implanting body are more tightly connected and are more firmly combined, thus the operation is more convenient; the bushing-type oral implanting device can be operated conveniently and can be well combined with the alveolar bone; the implanting body has good stability and can bear larger lateral force with little or no inclination; the base station and the implanting body can be adjusted in angle and can be connected in high precision;and the bushing-type oral implanting device can inhibit the bone resorption.

The invention provides a detachable axial-butting and quick-locking mechanism, which comprises a connecting shaft (1) and a connecting base (3), wherein one end of the connecting shaft (1) is provided with a positioning pin (2), the connecting base (3) is matched with connecting shaft to connect parts together, the column surface of the connecting base is provided with a lock latch (6) which is vertical to the central axis, penetrates into an upper locking base (4) and is radially communicated with the barrel hole of the connecting base (3), and a lock latch which is used for coaxially locking the connecting shaft, a truncated cone rotating body (12) is machined on the lower end of the lock latch, a connecting shaft penetration contact unlocking surface is machined on the truncated cone rotating body (12) so as to lock and unlock the axial inner-concave ladder-shaped section cutting surface of the truncated cone rotating body (12), and the lock latch always downwards acts on the connecting penetration locking contact surface (10) through a locking spring (5) connected on the step of the upper end of the truncated cone rotating body. According to the invention, quick locking and disassembly between two parts can be realized, the structure is compact and convenient, no calibration and adjustment are needed, and the maintainability, the reliability and the suitably-assembled property are good.

The invention relates to a pin shaft. The pin shaft comprises a cylindrical body, an expanding sleeve and a fixing part. The peripheral wall at one end of the body is provided with a first slope surface, and the distance from the first slope surface to an axis of the body is gradually decreased along the direction departing from the other end of the body. The expanding sleeve comprises a sleeve body sleeving one end of the body, the inner peripheral wall of the sleeve body is provided with a second slope surface in abutting joint with and matched with the first slope surface, and the sleeve body is provided with at least one slit penetrating the sleeve body radially and extending towards two ends of the sleeve body. The fixing part is used for applying axial pressure, towards the body, on the expanding sleeve so as to enable the sleeve body to be expanded open by the first slope surface. The pin shaft is capable of eliminating gaps between pin shaft holes of hinge joint seats and the pin shaft, so that service life of the pin shaft is prolonged and connection precision of the pin shaft is improved.

The invention discloses a connecting structure for nested composite sections. The connecting structure comprises an upright post and a cross beam which are respectively crossly nested by elongated members to form a thin-wall cylinder, and is characterized in that: the upright post and the cross beam are vertically connected through a connecting joint; the connecting joint comprises a bottom plate and a lug boss, wherein a hole cavity is formed on the lug boss along the direction vertical to the bottom plate; the lug boss and the cross beam are in inserted connection, and the bottom plate are connected with the side walls of the upright post through a fastening piece; convex ribs are molded on an outer side wall of the upright post along the length direction; a guiding grooves which are matched with the convex ribs are formed at the bottom of the bottom plate; and the outer side wall of the upright post is also provided with protrusions which prop against the lower edge of the bottom plate. Compared with the prior art, the connection structure has the advantages that: due to vertical connection of the detachable connecting joint, the bottom plate of the connecting joint and the upright post are connected by irregular bolts, and the connecting structure realizes detachable connection, and also can guarantee tight adhesion of the side walls of two sides of the upright post with the composite structure; and seamless connection between the side walls of two sides of the upright post is realized, and the strength and rigidity of the upright post are obviously improved.

The application discloses a data transmission method and a mobile terminal. The method includes: whether a first mobile terminal obtains first action information is detected; when the first action information is obtained, a first short-range communication module is triggered to start and a first short-range transmission protocol and a first identification code of the first mobile terminal are sent; the first short-range transmission protocol is a preset transmission protocol corresponding to the first action information; receiving a second short-range transmission protocol sent by a second mobile terminal; whether the first short-range transmission protocol matches the second short-range transmission protocol is detected; if so, a second identification code sent by the second mobile terminal is received through the first short-range communication module; after the second identification code is received, a data transmission channel is established between the first short-range communication module and the second short-range communication module; and through the data transmission channel, to-be-transmitted data is sent to the second mobile terminal.

The invention relates to a printing prosthetic hand and a manufacturing method thereof, and belongs to the technical field of prosthetic hand designing and making. According to the technical scheme, the printing prosthetic hand is formed by a big arm cylinder, an elbow joint, a small forearm cylinder, a wrist joint, a palm, a thumb, an index finger, a middle finger, a ring finger and a little finger which are connected in sequence through integral one-time 3D printing, and a grasping and stretching system composed of stretching main sheet metal, a palm built-in module, finger stretching piecesheet metal and a fingertip prefabricated module which are connected in sequence is embedded into the prosthetic hand. The elbow joint, the wrist joint and all metacarpal joints and interphalangeal joints of the thumb, the index finger, the middle finger, the ring finger and the little finger are each of a folding type straight and curved telescopic joint structure, wherein the elbow joint and thewrist joint are each of a high-strength structure. For prosthetic hand making, a left or right prosthetic hand three-dimensional digital model file is built at first, and layer-by-layer three-dimensional continuous printing is conducted. The prosthetic hand is high in connection precision, low in weight, small in bend resistance and not prone to fatigue, assembling is not needed, the weight of the whole prosthetic hand can be lowered, and the cost can be lowered.

The invention belongs to the technical field of on-orbit service, in particular to an on-orbit replaceable unit. The on-orbit replaceable unit with autonomous guiding and connecting functions is disclosed, and the technical scheme is that a passive plate is provided with a coarse guiding hole, a fine positioning hole and a locking screw hole therein; an active plate is provided with a coarse guiding rod and a fine guiding rod thereon; a locking assembly includes a locking shell and a locking rod sleeved therein; the locking rod is provided with a thread; male and female parts of an electricalconnector are respectively mounted on the passive plate and the active plate; and the active plate is mounted at the bottom of an equipment compartment, the locking assembly passes through the equipment compartment, and two ends of the locking shell are respectively connected with the active plate and an adapter. The on-orbit replaceable unit in the invention adopts the guiding way of the combination of coarse guiding and fine guiding, and has the advantages of large tolerance range and high guide precision. The connection interface in the invention adopts the thread form, the power is input by the adapter, and the advantages of fast connection and reliable connection are gained.

The invention discloses a two-way perforating machine, comprising a rack and perforating machines and also comprising adjusting devices and supporting mechanisms, wherein the perforating machines are symmetrically arranged at the two ends of the rack; the adjusting devices are symmetrically arranged at the two ends of the rack and are used for adjusting the positions of the perforating machines; the supporting mechanisms are used for supporting a workpieces; each adjusting device comprises a fixed plate; the fixed plate is provided with at least more than one long-strip-shaped hole and penetrates through a bolt after passing through the long-strip-shaped hole to be fixed on the rack; the fixed plate is connected with a connecting plate parallel to the perforating direction of the perforating machine; the connecting plate is fixedly connected with a sleeve piece which is sheathed on a central column fixedly connected with the perforating machine. The two-way perforating machine disclosed by the invention has the advantages that the structure is simple, the cost is low, not only can the perforating operation be carried out on workpieces such as steel pipes simultaneously, but also the working efficiency can be improved; due to the parts such as the adjusting devices, the two-way perforating machine can be applicable to perforation of the workpieces with different sizes.

The invention discloses a drum membrane type optical fiber splicer capable of being repeatedly opened to be used. The drum membrane type optical fiber splicer capable of being repeatedly opened to be used comprises an insertion core assembly, a box assembly, a shell assembly, a spring and an opening cover; the insertion core assembly and the box assembly are packaged in the shell assembly; the spring is arranged between the box assembly and the shell assembly; the box assembly comprises a box, a box cover, a guide wire block and a guide wire body; the box comprises a box body which is provided with a drum membrane cavity; two ends of the drum membrane cavity are communicated with the insertion core and guide blocks respectively; the side of the drum membrane cavity is provided with a drum membrane which is pressed to reduce the cross-sectional area of the drum membrane cavity; the periphery of the drum membrane is connected with the box body through a floating rib; a V-shaped groove is formed in the drum membrane cavity; and the box cover acts on the drum membrane through a locking membrane. The fixing action force which is applied by the optical fiber splicer to spliced optical fibers is distributed in a balanced way, and the twisting misplacement of the spliced optical fibers can be avoided; and moreover, a structure of sealing splicing points is adopted, so the splicing points are clean, and the erosion and interference of pollution can be avoided.

The invention discloses a tool positioning-clamping mechanism for a milling machine, which comprises a tool (1), a tool shank (3) and a pull bar (4). The tool shank (3) is partially contained in a machine spindle (5) and fixed to the same, the tool shank (3) is provided with a center hole (3.1), the tool (1) is nested into the center hole (3.1), the pull bar (4) is contained in the center hole (3.1), one end of the pull bar (4) is connected with the tool shank (3) and axially limited, the other end of the pull bar (4) is fixedly connected with the tool (1), and accordingly the tool (1) is fixedly connected with the machine spindle (5). The connection way is higher in connection rigidity than the original Morse taper connection way, connection is more stable, and clamping is better. When the machine spindle is in high-speed rotation, the tool is more stable in rotation and less apt to fall from the spindle, and safety factor is higher.

The invention is applicable to the technical field of robot control and provides a method and a device for adjusting the charging pose of a robot. The method comprises the following steps: judging whether the robot meets the directly-facing charging condition under the current pose; if not, combining with the charging parameter to rotate the robot to obtain the directly-facing charging pose; and controlling the robot to move to a position directly facing the charging pose for charging. According to the method, the robot is combined with the charging parameter and the rotary data to determine the charging pose. Compared with the traditional technology, the method has higher charging connecting precision to further improve the charging efficiency.

The invention discloses an automatic bolt tightening device of a six-axis robot. The automatic bolt tightening device of the six-axis robot includes a shell rear end, a shell front end, an alternatingcurrent servo motor, a harmonic reducer, an adapter flange, a toque sensor, an output shaft and a sleeve. The automatic bolt tightening device of the six-axis robot has the advantages and benefits that fully automatic bolt tightening operation can be finished according to the automatic bolt tightening device of the six-axis robot, the automatic bolt tightening device of the six-axis robot can beapplied to a production line with automatic assembling, accuracy and the assembling quality of bolt connection are improved greatly, installing time is shortened, and labour intensity of an operator is reduced; and the sleeve of the automatic bolt tightening device of the six-axis robot can be changed quickly, bolts with the different models can be tightened, and assembling work is convenient.

The invention discloses a high comfort performance independent suspension for a new energy bus. The high comfort performance independent suspension for the new energy bus comprises a steering knuckleassembly, a mounting plate, a brake disc, a hub assembly and a control arm, wherein the mounting plate, the brake disc and the hub assembly are fixed on the end surface of the steering knuckle assembly; the control arm is connected with the steering knuckle assembly; connecting lug blocks are arranged at the upper and lower ends of the steering knuckle assembly; the control arm is connected with the connecting lug block through a short pin rotating piece in a rotating manner; a step-shaped mounting hole is formed in the connecting lug block; a U-shaped fork is arranged at the end part of the control arm; coaxial mounting holes are formed in the two sides of the U-shaped fork; the short pin rotating piece comprises a short pin connecting piece and a T-shaped knuckle, wherein one end of theshort pin connecting piece is connected with the mounting hole through a bearing, and the two ends of the T-shaped knuckle are erected in the coaxial mounting holes through bearings; and the other endof the short pin connecting piece is fixedly connected with the T-shaped knuckle. According to the high comfort performance independent suspension for the new energy bus, the kingpin offset distanceis reduced, the kingpin inclination angle is increased, and the stability and comfort of the braking of the complete bus are improved.

The invention provides a magnesium alloy and aluminum alloy connecting method. A matched device is designed aiming at the magnesium alloy and aluminum alloy connecting method. A layer of micron-levelamorphous thin film is sputtered on a to-be-connected part of each sample through the magnetron sputtering technology as a connecting medium; not only is oxidation of the connecting parts avoided, butalso generation of a magnesium-aluminum intermetallic compound is avoided; meanwhile, the defects of pores, macrocracks and the like do not exist between the connecting area of a magnesium alloy andan aluminum alloy and the magnesium alloy as well as between the connecting area of the magnesium alloy and the aluminum alloy and the aluminum alloy; the residual stress in transition layers can be reduced by a large margin through the amorphous thin films serving as intermediate layers; and the transition areas of the amorphous thin films are small, so that the influence on the overall performance of the magnesium alloy and the aluminum alloy is less, the bonding strength of a magnesium-aluminum connector is improved significantly, and magnesium-aluminum connection is firmer.

The invention discloses a hot melting device for a poly ethylene (PE) tee joint. The device comprises a rack, a main pipe locating table, a punching tool transverse moving table and a branch pipe locating table; a clamping jaw used for locating a main pipe horizontally and a rotary air cylinder used for driving the clamping jaw to rotate are arranged on the main pipe locating table; the punching tool transverse moving table is located at one side of the main pipe locating table and can move in the axial direction perpendicular to the main pipe; the branch pipe locating table is located at the other side of the main pipe locating table and can move in the axial direction perpendicular to the main pipe; branch pipe locating clamping rings used for locating branch pipes in the mode that the axial direction of the branch pipes is perpendicular to the axial direction of the main pipe in the horizontal plane are arranged on the branch pipe locating table; a punching tool and a motor used for driving the punching tool to rotate are arranged on the punching tool transverse moving table; a heating plate is arranged between the main pipe locating table and the branch pipe locating table; guide rails are arranged at the two sides of the heating plate; a heating plate lifting cylinder used for driving the heating plate to ascend and descend along the guide rails is arranged on the rack; a floating mechanism is arranged on the guide rails. The hot melting device for the PE tee joint is capable of completing a plurality of steps and simplifying production procedures, and therefore the production efficiency is improved.

The invention discloses a special workbench for quick mounting of a pump and relates to the technical field of pumps. The special workbench comprises a supporting base, wherein an adjusting transmission mechanism is fixedly connected with the position, close to the top end and located on the outer side, of a left supporting frame; a bolt auxiliary connection mechanism is fixedly connected with themiddle position at the top of the left supporting frame; a movable supporting seat is slidably connected with the top of a fixed rail plate; a right supporting frame is fixedly connected with the middle position at the top of the movable supporting seat; an internally-threaded sleeve block is fixedly connected into the upper part of the fixed rail plate; a limiting stop block is fixedly connectedwith the middle position at the top of an operating table; and clamps are symmetrically and rotationally connected with the inner sides, close to the tops, of the left supporting frame and the rightsupporting frame. The special workbench for quick mounting of the pump attains the goals that the operation is easy, the precision is high and the speed is high; the rotation by any angles can be achieved; the positioning fit deviation is small; the bolt connection between pump bodies can be facilitated; the bolt connection precision can be improved; and the workforce during the bolt connection process can be reduced.

The invention relates to the technical field of rail transit equipment, in particular to a pedal system between an air rail train and a platform and a control method of the pedal system. The pedal system and the control method aim to solve the problem that a safety distance gap between the air rail train and the platform causes potential safety hazards. In order to solve the purpose, the inventionprovides the pedal system between the air rail train and the platform and the control method of the pedal system. The pedal system comprises a pedal device and a butt joint part, the pedal device isarranged on one of the air rail train and the platform, and the butt joint part is arranged on the other of the air rail train and the platform. The pedal device comprises a connecting plate, a driving mechanism and a transmission mechanism connected with the connecting plate and the driving mechanism, the driving mechanism can drive the transmission mechanism to move, and then the transmission mechanism drives the connecting plate to be in butt joint with the butt joint part. The pedal system is simple in structure, low in manufacturing cost and capable of meeting requirements of public transport mass production.

The invention relates to the field of dental repair technology, in particular to an oral implant with a conical surface and a rectangular key structure. The oral implant can be implanted in an alveolar bone in a surgery. The oral implant comprises an implant, and a base and a fastening bolt which are matched with the implant. The oral implant is characterized in that the implant consists of a cylindrical upper section part and a conical lower section part, wherein a conical hole is formed at the upper end of the interior of the implant, a cylindrical hole is formed at the middle section of the interior of the implant, a fastening screw hole is formed at the lower end of the interior of the implant, a cylindrical surface and the conical surface which are matched with the cylindrical hole and the conical hole are formed on the lower part of the base, and a key slot and a rectangular key which are matched with each other are formed on the cylindrical hole and the cylindrical surface respectively. The oral implant has the advantages of simple operation, short operation time, good initial stability after operation, good sealing property, high reliability, good base rotation resistance and platform conversion structure, bone absorption inhibition or removal and the like.

The invention discloses a PCB (printed circuit board), a connecting method for the PCB and a COF (chip on FPC (flexible printed circuit)), as well as a liquid crystal display device. The connecting method comprises the following steps: A, a clearance groove / clearance grooves is / are arranged at one side or two sides of a laminating area / laminating areas of the PCB, wherein the PCB and the COF are laminated on the laminating area / laminating areas; B, a high-temperature laminating cutter bit is used for laminating the COF and the printed circuit board assembly (PCBA), so that the COF and the PCBA are connected on the laminating area / laminating areas. According to the invention, as the clearance grooves are arranged at the two sides of the laminating areas at which the PCBA and the COF are laminated, so that the two sides of the laminating area / laminating areas of the PCBA are not affected by the high temperature of the laminating cutter bit, thereby avoiding the defect that the distortion of the PCB at the two sides is accumulated on the PCB on the laminating area / laminating areas so that large displacement of golden fingers on the laminating area / laminating areas can be caused and ensuring the connection accuracy of a leading wire of the COF and the golden fingers on the PCBA.

The invention discloses a lifting vertical vortex pipeline pump. The lifting vertical vortex pipeline pump comprises a first motor and a pump body. The first motor and the body are fixedly connected through a bearing seat. A liquid outflow pipe and a liquid inflow pipe are arranged on the left side and the right side of the pump body respectively. A liquid outflow flange plate and a liquid inflow flange plate are arranged at the end of the liquid outflow pipe and the end of the liquid inflow pipe respectively. An impeller is arranged in the pump body. A lifting device is arranged at the bottom of the pump body. At least four supporting guide rods are symmetrically arranged on the periphery of the lifting device. The supporting guide rods are connected with the first motor through limiting mechanisms. One-way flow guide plates are rotationally connected to the inner wall of the liquid inflow pipe. Vortex generating bodies are arranged in the liquid outflow pipe. The lifting vertical vortex pipeline pump is simple in structure and high in practicality; the lifting device is arranged outside the pump body, the requirement of erection joint of pipelines of different heights can be met, the pipelines are prevented from being bent, and connecting accuracy and strength are improved; and liquid can flow in a vortex manner through the vortex generating bodies in the pump body, and pressure and speed in the liquid flowing process are increased.

The invention discloses a steel / wood combined truss connection structure. The steel / wood combined truss connection structure comprises two upper chord members, a first vertical web member, second vertical web members, diagonal web members, first lower chord members, second lower chord members, and a connecting piece; the connecting piece comprises a supporting block, installation blocks, first connecting blocks, second connecting blocks, third connecting blocks, fourth connecting blocks, fifth connecting blocks, sixth connecting blocks, seventh connecting blocks, eighth connecting blocks, first fixing blocks, second fixing blocks, bolts, and rotating members; the supporting block is of a pentagonal prism structure; the two first connecting blocks are symmetrically fixedly arranged on thetwo sides of the lower [art of the supporting block. According to the steel / wood combined truss connection structure, the upper chord members, the first vertical web member, the second vertical web members, the diagonal web members, the first lower chord members, and the second lower chord members are be fixed, a conventional notch and tooth joint manner is avoided, welding connection is avoided,the connection precision among the members is higher, the structure is more compact, no welding joint or welding rust is generated, and the appearance is beautiful.

The present invention provides an HDMI cable, and the cable comprises a connector part comprising an HDMI interface end, a housing, and a wire comb connection end for electrically connecting with a wire comb for cable termination, wherein the wire comb connection end is provided with a plurality of wire connection pads; an HDMI cable including a plurality of wires for transmitting data and signalsand a ground wire; and a wire termination wire comb which is made of a conductive material, is used for inserting and fixing each wire of the HDMI cable, and is provided with more than one groundingterminal extending towards the connector side. The grounding terminals and the wires are electrically connected to the corresponding wire connection pads of the connector part. According to the structure, the assembly of the HDMI cable can be rapidly realized, and the performance of resisting external electromagnetic interference can be enhanced.

The invention provides network shared systems, a network connection method and an access method for user equipment and belongs to the technical field of communication. A network shared system comprises at least two eNodeB-CUs (Central unit) and an eNodeB-DU (Distributed unit). Each eNodeB-CU belongs to different operators. At least two CU-DU interfaces are set on the eNodeB-DU. Each CU-DU interface corresponds to an operator. Each eNodeB-CU establishes network connection with the eNodeB-DU through utilization of the CU-DU interfaces of the belonging operators. According to the network shared systems, the network connection method and the access method, each operator owns the independent eNodeB-CU, can independently decide functions supported by the eNodeB-CUs, can carry out upgrading management on the eNodeB-CU without negotiating with the other operators and can independently determine partial wireless parameters of the eNodeB-CUs, so autonomous control capacity and competitiveness ofthe operators for a network in a network shared scene is improved, and security of operation and maintenance data is improved.

The invention discloses a connecting structure of a nested-type composite sectional material. The structure comprises a vertical column and a cross beam of a thin wall column body which is formed by the alternative nesting of a long-strip construction member. The structure is characterized in that the vertical column and the cross beam are vertically connected through a connecting joint; the connecting joint comprises a base plate and a boss; the boss is provided with a hole cavity along the direction vertical to the base plate; the boss and the cross beam are inserted and matched; the base plate and the side wall of the vertical column are connected through a fastening piece; a convex rib is molded along the length direction of the outer side wall of the vertical column; the bottom part of the base plate is provided with a guide groove which can be adaptive to the convex rib; and the outer side wall of the vertical column is also provided with a protrusion which is against the lower edge of the base plate. Compared with the prior art, a detachable connecting joint is used for connecting vertically according to the invention, the base plate and the vertical column of the connecting joint are connected by utilizing a non-regular bolt, not only can the detachable connection be realized, the tight fit between the side walls of the double sides of the vertical column of the composite structure can be ensured, the seamless connection between the side walls of the double sides of the vertical column can be realized, and the strength and intensity of the vertical column can be improved prominently.

The invention relates to the technical field of charging equipment for electric automobiles, and provides a base plate-type charging device which can adapt to a butt-joint moving mechanism from the ground to a charged automobile. The base plate-type charging device comprises a sliding rail, a sliding base, a contact element base and a connecting arm assembly, wherein the sliding base is slidably connected to the sliding rail, the contact element base is arranged on the sliding rail and is connected with a contact element, and the connecting arm assembly is connected between the sliding base and the contact element base and is used for controlling a contact element on the contact element base to move to a specified position to be in butt joint with a charging interface of the charged automobile. The connecting arm assembly is arranged between the sliding base and the contact element base and is used for controlling the contact element on the contact element base to be in butt joint withthe charging interface of the charged automobile, and thus, the accuracy of connection between the contact element and the charging interface can be improved.