491results about How to "Guaranteed connection reliability" patented technology

The invention discloses a notebook computer docking station which comprises a host box. A supporting plate for placing a notebook computer is fixed on the host box and provided with a positioning and fixing device which is used for rapidly positioning, clamping and fixing the notebook computer on the supporting plate and is connected with a connector corresponding to a signal output port of the notebook computer, and the connector is aligned to and inserted in the signal output port of the notebook computer after the notebook computer is positioned and fixed on the supporting plate. The notebook computer docking station has the advantages of rapidly positioning the notebook computer, being accurately and reliably abutted with the output port of the notebook computer, being capable of firmly fixing the notebook computer and having prominent anti-vibration and anti-impact capabilities and extended performance.

The invention relates to a method for reinforcing a brick-concrete structure by utilizing an angle steel frame, belonging to the anti-earthquake reinforcement field. According to the method disclosed by the invention, a reliably connected steel frame formed by double-angle steel can replace a ring beam and a structural column, and field bolt assembly connection through factory pre-fabricated components can be realized, thus the safe, environment-friendly and green construction is realized; simultaneously, angle steel, a wall and a pre-fabricated floor slab are connected by bolts and epoxy resin, and the double-angle steel is also can be used as a round hole plate end part support, so that the connection reliability of the pre-fabricated floor slab and the wall is ensured, double functions of the ring beam and a supporting beam are exerted, reinforcement workload and cost are saved, and the original structure and reinforcement components mutually and cooperatively work. According to the method for reinforcing the brick-concrete structure by utilizing the angle steel frame, disclosed by the invention, the binding-type reinforcement construction speed is fast, and the reinforcement construction is safer, so that the method is very suitable for residential buildings.

The invention relates to an extrusion semi-grouting reinforcement bar sleeve, a connecting structure and a construction method thereof. The sleeve is a hot-rolled seamless steel pipe, a grouting hole and a slurry outlet are formed in the tube wall of the sleeve, annular concave bulges are distributed between the grouting hole and the slurry outlet, one end of the sleeve is an extrusion end, the other part of the sleeve is the slurry anchor end, the internal diameter of the extrusion end is equal to the external diameter of each of connected reinforcement bars and is smaller than that of each slurry anchor end, and the grouting hole, the slurry outlet and the annular concave bulges are all positioned at the slurry anchor end. According to the extrusion semi-grouting reinforcement bar sleeve, the connection among the reinforcement bars is realized by the utilization of the semi-grouting reinforcement bar sleeve, one end part of the sleeve is connected with the reinforcement bars by adopting an extrusion connection technology, and the other part of the sleeve is still connected with the reinforcement bars in a grouting way; the extrusion semi-grouting reinforcement bar sleeve can be widely applied to the reinforcement bar connection of precast concrete columns in a multi-high-rise precast concrete frame structure and a shear wall structure or a frame shear wall structure, the horizontal reinforcement bar connection of a precast concrete beam, the reinforcement bar connection of the precast concrete shear wall and the reinforcement bar connection in an existing reinforcement project.

The invention discloses an inherent frequency measuring device for 600 DEG C high-temperature thermal vibration coupling test of a high-speed cruise missile airfoil surface. The device comprises a missile airfoil surface structure test piece, a quartz lamp heating array, a vibration exciter, a ceramic extension rod, an acceleration transducer, a computer and a heat insulation baffle plate. In the high-temperature thermal vibration coupling test of the cruise missile airfoil surface, the missile airfoil surface is quickly heated by using the quartz lamp heating array and generates random vibration through the vibration exciter at the same time to form a 600 DEG C high-temperature thermal vibration coupling test environment. The rigid ceramic extension rod with high rigidity and high temperature resistance is arranged on the missile airfoil surface to guide the vibration signals on the missile airfoil surface out of the high-temperature thermal field, and the high-temperature resistant lightweight ceramic fiber heat insulation baffle plate is used for implementing thermal diffusion prevention shielding for the radiation thermal field. The normal temperature acceleration transducer arranged at the cold end of the ceramic extension rod dynamically tracks and measures the vibration signals guided to the missile airfoil structure of the normal temperature zone to acquire the change rule of the inherent frequency of the missile airfoil surface under the high-temperature thermal vibration coupling test environment; and the device provides an effective dynamic high-temperature thermal vibration coupling test means for researching and manufacturing high-speed cruise missiles.

Provided is a method for manufacturing a printed-circuit board, which can form bumps at substantially identical heights on connection pads having different opening diameters of a solder resist. Diametrically-small bumps (78S), which are made high of solder balls (77) mounted in diametrically-small openings (71S) of a solder resist layer (70), are flattened to have the same height as that of the solder bumps (78P) of diametrically-large openings (71P). The solder bumps (78S) of the diametrically small openings (71S) and the solder bumps (78P) of the diametrically large openings (71P) are identical in the solder quantity. No connection occurs at the solder bumps (78S) of the diametrically small openings (71S) so that the connection reliability between an IC chip (90) and a multilayer printed-circuit board (10) can be retained.

The invention relates to an electric iron tower mounted with an 4G antenna. The electric iron tower comprises an iron tower main body, wherein a first mounting bracket, a second mounting bracket, a lightning rod, a protecting sleeve and a grounding device are arranged on the iron tower main body; a base is arranged at the bottom end of the iron tower main body; the base comprises a soil layer, a thin sand layer, a concrete floor and a macadam layer; the protecting sleeve is inserted into the thin sand layer. The electric iron tower has the advantages that a radio frequency pulling unit RUU and the antenna are respectively fixed on a cross arm at the top of the top end of the iron tower through the first mounting bracket and the second mounting bracket, the lightning rod and the grounding device which are arranged on the iron tower are used for performing lightning protection treatment on the radio frequency pulling unit RUU and the antenna, and the radio frequency pulling unit RUU and the antenna are arranged in a protecting area of the lightning rod, so that the antenna and the radio frequency pulling unit RUU are protected from being damaged, the safety performance is high, the structure is simple, the mounting is convenient, and the base is provided with the soil layer, the thin sand layer, the concrete floor and the macadam layer so that the strength of the base is increased.

The invention discloses a large-deformation composite material with a flexible cellular structure and a preparation method of the large-deformation composite material. According to the large-deformation composite material, glass fiber cloth and flexible epoxy resin which need to greatly deform and are used for single-cell cell walls are molded according to a stressing property of the large deformation of the cellular structure; a large deformation function is realized by adopting the flexible epoxy resin; glass fibers and epoxy resin, which have connection effects, of the cell walls are molded; carbon fibers and epoxy resin which have connection effects on single cell lines are molded so that the high rigidity is obtained; and the requirements on bearing out-plane load and keeping the shape of the cellular structure in deformation are met. According to the method, primary paving, and primary curing and molding are adopted, and interface defects caused by secondary paving and curing are avoided; and single-cell inter-line binding force is improved, the process is simplified and the cost is reduced. The composite material with the flexible cellular structure, which is prepared by adopting the method, can be applied to a flexible supporting body of a morphing wing skin or a morphing structure.

Disclosed are an extruded semi-grouting reinforced sleeve with a built-in casing, a connective structure, and a construction method. The sleeve is a hot-rolled seamless steel tube. The wall of the sleeve is provided with a grout inlet and a grout outlet. The sleeve is provided with circular inner projections. One end of the sleeve is an extruded end, and the rest is a grout-anchoring end. The built-in casing is arranged inside the extruded end. The inner diameter of the built-in casing is equal to the outer diameter of a rebar to be connected, and less than the inner diameter of the grout-anchoring end. All of the grout inlet, the grout outlet and the circular inner projections are located at the grout-anchoring end. By the use of the built-in casing, the deformation of the extruded end is lessened to avoid the extruded end being damaged during crimping; the sleeve is widely applicable to the rebar connection of prefabricated concrete columns in multi-storey and high-rise prefabricated assembled concrete frame structures, shear wall structures or frame shear wall structures, as well as the connection of horizontal rebars in prefabricated concrete beams, the connection of rebars in prefabricated concrete shear walls and the connection of rebars in existing reinforcement projects.

The invention discloses a water purifier. The water purifier comprises a shell, a filter core assembly, a water path board and a filter core fixing structure, wherein the filter core assembly is arranged on the shell and comprises a filter core; a water inlet and a water outlet are formed in the filter core, and the water inlet and the water outlet are respectively formed in the side parts of the filter core; a water path is limited in the water path board, and a direct inserting type filter core interface connected with the water inlet and the water outlet is formed in the water path board; the filter core fixing structure is detachably connected to the water path board or the shell and is connected with the filter core so as to fix the position of the filter core relative to the water path board. According to the water purifier disclosed by the embodiment of the invention, by inserting the filter core in the water path board and fixing the position of the filter core relative to the water path board through the filter core fixing structure, the filter core can be effectively locked, the degree of freedom of the filter core relative to the water path board is limited, and the filter core is further prevented from being thrown away from the water path board due to larger working pressure of the water inlet and the water outlet or the action of an external force, the filter core or the water path board is prevented from being destroyed, the connection reliability is ensured, and the cost is reduced.

A winding machine is disclosed for continuously winding multiple threads into spools. The winding machine has for that purpose a spool revolver (2) rotatively mounted in a machine frame (1) and bearing two long, cantilevered spool spindles (3.1, 3.2) for receiving the spools. The spool spindles (3.1, 3.2) are alternatively moved by the spool revolver (2) into an operating region for winding the threads and into an exchanging region for removing the fully wound spools. The spool spindles (3.1, 3.2) are rotatively mounted and connected by fastening means (4.1) to the spool revolver (2). In order to prevent the risk of injury to the operator in the event of an operating error and of the resultant overstress, an additional safety means (12) is provided for securing the spool spindles (3.1, 3.2) held in the operating region during their operation.

The invention discloses a coil part, which comprises a stator component, wherein the stator component comprises stator shells, electromagnetic polar plates and stator windings, and each stator winding is provided with three contact pins. The coil part also comprises contact pin protection elements, wherein a contact pin holes correspondingly matched with the stator component are arranged on each contact pin protection element, the contact pin on the stator component is inserted into the contact pin hole of the contact pin protection element and exposed out of the outer surface of the contact pin protection element, the contact pin protection element and the stator component are assembled together and then are subjected to injection molding to form a coil injection molding piece, an injection molding layer of the coil injection molding piece is coated with an insulated separation bars of the contact pin protection elements and is not coated on the end part of the contact pin, which stretches out of the contact pin protection element or the outer surface of the contact pin protection element, which is back to the stator component. Based on the coil part, the invention also provides a manufacturing method for the coil part.

The invention discloses a detachable connecting device. The detachable connecting device comprises a fixing table, a base table and a sliding block, wherein the fixing table is fixedly connected with a first component, the base table is fixedly connected with a second component, and the sliding block is matched with the fixing table in a sliding mode. The base table is matched with the fixing table in a sliding mode, matched assemblies are arranged on the base table and the fixing table, the assemblies are used for making the sliding block slide in place relative to the fixing table and then locked and making the base table and the fixing table matched in a sliding mode and then locked, and the assemblies can make the sliding block slide relative to the fixing table and finally make the sliding block and the fixing table separated and unlocked. The invention further provides a connecting device of a wire harness connector and a buckle. The connecting device of the wire harness connector and the buckle is compact in structure, small in size, smooth in matching, firm in fixation, easy to detach and install and capable of being reused for a long time. The connecting device can be used as an intermediate connecting part for connecting two components such as the vehicle wire harness connector and the buckle.

The embodiment of the invention provides an assembly wall body which comprises two wall face units which are oppositely arranged. Each wall face unit comprises a gypsum plate and glass cotton, whereina first vertical keel and a second vertical keel are arranged on the two side edges of the wall face unit correspondingly, a gypsum plate is fixed to the first vertical keel and the second vertical keel through self-tapping screws, the glass cotton is fixed among the gypsum plate, the first vertical keel and the second vertical keel, and the first vertical keel in the wall face unit is connectedwith the second vertical keel of the oppositely-arranged wall face unit through a self-tapping screw; and the width of the first vertical keel is larger than that of the second vertical keel. The embodiment of the invention further provides an installation method of the assembly wall body. The installation method includes the steps that L-shaped keel connecting pieces are installed on a roof and on the ground; the wall face units are connected and fixed to the L-shaped keel connecting pieces; the other wall face unit is connected and fixed to the installed wall face unit through a self-tappingscrew; L-shaped connecting pieces are arranged on the other sides of the wall face units; and the wall face units are sequentially installed to form the whole wall body.

The invention provides a Lora switch detector, a device switch detection system, and a signal processing and signal separation method. The detector comprises a shell, an MCU circuit, a radio frequencyunit, a management circuit, a frequency compensation circuit, a Modbus management control circuit, a Bacnet management control circuit, a watchdog circuit, an external relay circuit, an RS232/RS485 interface, an indicator lamp circuit and power management circuit. The networking device of the Lora switch detector provided by the invention has the advantages of simple structure, stable transmission over a long distance, dynamic network, low power consumption and low cost.

The invention provides a stator punching piece, a stator core and a motor. The stator punching piece is provided with an annular yoke part and a tooth part detachably connected with the yoke part. The tooth part is located in the yoke part, a plurality of teeth are circumferentially arranged on the tooth part, tooth roots of every two adjacent teeth are connected through a bridge part, every bridge part is provided with an inner arc close to the circle center of the tooth part and an outer arc far away from the circle center of the tooth part, inner arcs of a plurality of bridge parts are located on a first circumference, outer arcs of the plurality of bridge parts are located on a second circumference, and the first circumference and the second circumference are concentric circles with the circle center of the tooth part serving as the circle center. The stator core is provided with a first tooth part formed by stacking the stator punching pieces. The motor is provided with a stator and a rotor, and the stator comprises the stator core. Flux leakage of the stator core can be reduced, breakage of the stator punching piece from the bridge parts is avoided, and quality of the stator punching piece is improved.

The invention discloses a full-automatic quick replacement device of a hydraulic excavator. The full-automatic quick replacement device comprises an upper coupling part and a lower coupling part. Theupper coupling part comprises a quick female joint assembly and pin rods capable of being driven by a telescopic oil cylinder to move. The lower coupling part comprises a quick male joint assembly, apin shaft assembly, conic pin cooperation sleeves cooperating with the pin rods and spring lower guide columns. The upper coupling part can be hooked to the pin shaft assembly at one end of the lowercoupling part through a hook-shaped portion at one end of the upper coupling part and rotates around the center axis of the pin shaft assembly, so that quick female joints at the other end of the upper coupling part correspondingly communicate with quick male joints at the other end of the lower coupling part. The pin rods are driven by the telescopic oil cylinder to stretch into the conic pin cooperation sleeves to mechanically lock the upper coupling part and the lower coupling part. Hydraulic connection is achieved through coupling of the quick male joint assembly and the quick female jointassembly, the posture is adjusted through guide of guide columns and adjusting springs, it is ensured that connection is accurate and reliable, and operation is safe.

The invention relates to an aero-engine exhaust measuring device, which belongs to the technical field of aero-engine tests. The aero-engine exhaust measuring device provided by the technical scheme comprises a measuring section and a measuring rake. The measuring section is cylindrical, and the measuring rake is installed on the inner wall of the measuring section. The measuring rake comprises ameasuring rake body, a total pressure probe, a static pressure probe, a temperature probe and a clamping plate. The measuring rake body is of a sheet-shaped structure. A groove is formed in the surface of the measuring rake body. The signal detection ends of the total pressure probe, the static pressure probe and the temperature probe penetrate through the groove and penetrate out of the measuringrake body, and the signal output ends of the total pressure probe, the static pressure probe and the temperature probe penetrate out of the outer wall of the measuring section and are connected witha signal receiving device. The equipment is widely applied to the field of aero-engine tests.

The invention discloses a vacuum negative-pressure grouting method. Through the effect of vacuum negative-pressure and pressure maintaining grouting, full grouting is achieved, and two machines are combined to carry out the grouting operation. The vacuum negative-pressure grouting method comprises the following steps that through a first grouting machine, a grouting material is conveyed from a grout inlet of a sleeve to a communicating cavity of a connected element and the inner portion of the sleeve by a pipeline; when the grouting material is about to flow out from a post-filling overflow opening of the sleeve, vacuum negative-pressure is formed inside the sleeve by the suction of a second grouting machine at the overflow opening, so that residual air in the sleeve can be sucked out, slurry can leak out secrete free water, and the whole sleeve and the gap area of the communicating cavity are filled with the grouting material; and the first grouting machine continues to perform pressure maintaining grouting at the grout inlet, so that it is guaranteed that the sleeve and the filling parts of the element is full of the grouting material.

The invention provides a pier-extruded and half-grouted steel bar sleeve, a connecting structure and a construction method thereof. The sleeve is a hot-rolling seamless steel pipe, a grouting hole and a slurry discharging hole are formed in the sleeve wall of the sleeve, an annular inner projection is distributed between the grouting hole and the slurry discharging hole, one end of the sleeve is an extrusion end, the rest part is a grouting-anchoring end, the inner diameter of the extrusion end is equal to the outer diameter of connected steel bars and smaller than the inner diameter of the grouting-anchoring end, and the grouting hole, the slurry discharging hole and the annular inner projection are positioned at the grouting-anchoring end. The steel bars are connected through the half-grouted steel bar sleeve, part of one end of the sleeve is connected with the steel bar by an extrusion connection technology, and the other part of the sleeve is still connected with the steel bar in a grouting mode. The connecting structure can be widely applied to the steel bar connection of prefabricated concrete columns in a multi-high-layer prefabricated assembly type concrete framework structure, a shear wall structure or a framework shear wall structure as well as the horizontal steel bar connection of prefabricated concrete beams, the steel bar connection of prefabricated concrete shear walls and steel bar connection in the conventional reinforcing engineering.

The invention discloses a split type radio frequency coaxial adaptor which comprises a nut, a casing body, an outer conductor and inner conductors. The casing body comprises an insertion head end and an insertion base end, the outer conductor is arranged in the casing body and is in interference fit with the casing body, the inner conductors are arranged in the outer conductor, and the nut is arranged at the insertion head end of the casing body. The inner conductor comprises a first inner conductor and a second inner conductor, the two ends of the first inner conductor are provided with a first insertion pin and a first insertion hole respectively, the two ends of the second inner conductor are provided with a second insertion pin and a second insertion hole respectively, the first insertion pin is located at the insertion head end of the casing body, the second insertion pin is located in the first insertion hole, and the second insertion hole is located in the insertion base end of the casing body. The processing technology of a radio frequency electric cable adaptor is simplified, production efficiency is improved, production cost is reduced, particularly, such as a split type 1.85mm radio frequency coaxial adaptor, and the voltage standing wave ratio of the adaptor is smaller than or equal to 1.45 under DC-65GHz.

The invention relates to an Y63-series special-type electric connector for high-speed rails, comprising a shell, an insulator and circular contact elements. The shell comprises a front shell and a back shell, the insulator comprises a front insulator and a back insulator, the front insulator is arranged in the front shell, more than one circular contact element is connected to the back insulator,and the back shell presses out the back insulator between the front shell and the back shell so that the part of more than one circular contact element, which is over the back insulator, is arranged in the front insulator. The front shell and the back shell are connected in series with the front insulator and the back insulator by central screw assemblies to form an electric connecting line with a vertical outside-line opening, and the circular contact elements with hermaphroditic structures, which are inserted on the back insulator, are matched, thus the electric connector has the advantagesof simple and compact structure, stability and firmness in connection, good sealing performance, high switched-on power performance and high safety, and is suitable for train control system responderunits of high-speed rails, underground railways and the like.

The invention discloses a device capable of improving axial rigidity of a main shaft of a precision machine tool with an adjustable bearing pre-tightening force. The device comprises a main shaft, a locking nut, a gasket, a box seat, an end cover, a clamp ring, a pre-pressing spring assembly and an improved bearing pre-tightening device, wherein the improved bearing pre-tightening device adopts an annular oil chamber structure formed by transformation of a single-sided thin-walled end surface. The main shaft penetrates through the end cover, the clamp ring, a B bearing, a shaft sleeve, an A bearing, the gasket and the locking nut from one end to the other end sequentially; and the pre-pressing spring assembly and the improved bearing pre-tightening device are mounted between the main shaft and the box seat.According to the device, on one hand, the pre-pressing spring assembly is added on one side of the A bearing to improve the axial rigidity produced when the main shaft moves toward the B direction rightward; and on the other hand, a conventional bearing pre-tightening device mounted between the A bearing and the B bearing is improved, so that on one hand, the improved bearing pre-tightening device can be taken as a support of a D annular oil chamber and an oil way for providing oil, and on the other hand, the improved bearing pre-tightening device can be taken as a support of the B bearing and can achieve radial positioning of the B bearing and axial positioning of the main shaft.

The invention discloses a concrete mixing plant configured with a vibration type mixing main engine. The concrete mixing plant configured with the vibration type mixing main engine comprises an aggregate batcher, an aggregate lifting mechanism, a main building platform, a cement chamber, a coal ash chamber, a cement spiral conveyor, a coal ash spiral conveyor, a cement scale, a coal ash scale, a water scale, a water tank, a control chamber, a main engine bracket platform and the vibration type mixing main engine; the main building platform is fixedly supported on a base surface through four main building supporting legs; the main engine bracket platform is arranged at an opening in the center of the main building platform, and is lower than the main building platform; the main engine bracket platform is fixedly supported on the base surface through four bracket platform supporting legs; the four bracket platform supporting legs and the four main building supporting legs form a structure shaped like a Chinese character 'Mu' (means the eye); the vibration type mixing main engine is fixed on the main engine bracket platform; and a rubber damping block is arranged between the vibration type mixing main engine and the main engine bracket platform. The concrete mixing plant configured with the vibration type mixing main engine, provided by the invention, eliminates the influence of the vibration type mixing main engine on the vibration of the main building platform of the mixing plant, so as to ensure the weighing accuracy of the coal ash scale and the water scale, and the safety and the reliability of each connection structure.