51results about How to "Applicable connection" patented technology

The invention discloses a reinforced concrete girder bridge girder reinforcing structure and method. The reinforcing structure comprises a reinforcing form board, a concrete structure located in a cavity between the reinforcing form board and a to-be-reinforced girder and a prestress system arranged on the reinforcing form board, wherein the reinforcing form board includes a girder-bottom form board and two girder-side form boards; the prestress system comprises two longitudinal prestress steel strands penetrating the reinforcing form board and a plurality of first transverse prestress steel strands penetrating the girder-bottom form board, four steel anchor boxes are disposed on the to-be-reinforced girder, and the two longitudinal prestress steel strands, two second transverse prestress steel strands and the four steel anchor boxes form the annular prestress system. The reinforcing method includes the steps of firstly, prefabricating the reinforcing form board; secondly, arranging anchor parts; thirdly, hoisting and fixing the reinforcing form board; fourthly, pouring concrete; performing prestress tension. The reinforcing structure and method is reasonable in design, simple in construction, good in reinforcing effect and capable of solve various problems of existing reinforcing methods.

The invention relates to the technical field of structural engineering, and discloses a connection joint of a fabricated circular steel tube casing fiber concrete column. The connection joint of the fabricated circular steel tube casing fiber concrete column comprises an outer-wrapped high-strength circular steel pipe, an inner sleeve high-strength round steel pipe and a circular casing conversion splitter plate, wherein wedge-shaped connecting teeth are arranged at the two ends of the outer-wrapped high-strength round steel pipe and the inner sleeve high-strength round steel pipe, the wedge-shaped connecting teeth are uncontinuously and evenly distributed along the circumference. The circular casing conversion splitter plate comprises a circular plate. A center through-hole is formed in the central position of the circular plate, the upper and lower faces of the circular plate are provided with vertical partition boards, each vertical partition board is provided with wedge-shaped chutes matched with the wedge-shaped connecting teeth, and the steel pipe and the circular casing conversion splitter plate are fixedly connected by the coordination between the wedge-shaped connecting teeth and the wedge-shaped chutes. According the connection joint and installation method of fabricated circular steel tube casing fiber concrete column, field welding between high-strength circular steel pipes is avoided, the reliability of the joint is improved, the steel part of the whole joint is produced by a factory and is assembled on the site, the concrete is poured on the site, and the influence of the construction on the quality is furthest minimized.

The invention discloses a reinforced concrete girder bridge girder reinforcing structure and method. The reinforcing structure comprises a reinforcing form board, a concrete structure located in a cavity between the reinforcing form board and a to-be-reinforced girder and a prestress system arranged on the reinforcing form board, wherein the reinforcing form board includes a girder-bottom form board and two girder-side form boards; the prestress system comprises two longitudinal prestress steel strands penetrating the reinforcing form board and a plurality of first transverse prestress steel strands penetrating the girder-bottom form board, four steel anchor boxes are disposed on the to-be-reinforced girder, and the two longitudinal prestress steel strands, two second transverse prestress steel strands and the four steel anchor boxes form the annular prestress system. The reinforcing method includes the steps of firstly, prefabricating the reinforcing form board; secondly, arranging anchor parts; thirdly, hoisting and fixing the reinforcing form board; fourthly, pouring concrete; performing prestress tension. The reinforcing structure and method is reasonable in design, simple in construction, good in reinforcing effect and capable of solve various problems of existing reinforcing methods.

The invention discloses a gravitational equilibrium wheeled vehicle vacuum pipeline traffic system suitable for a strait channel. The system comprises seabed pipe piers, a pipeline and a vehicle. Theincluded angles of wheel sets of wheels of the vehicle range from 80 degrees to 100 degrees. The wheels roll on the pipeline wall and the vehicle can achieve self-stable equilibrium in the pipeline. Power is supplied to the vehicle through a battery or a power grid, and the vehicle is driven by the wheels or a linear motor. Propellers are additionally arranged on a vehicle head, the vehicle is driven by the wheels to travel when the speed is smaller than 200 km / h, and the vehicle is driven through assistance of the propellers when the speed is larger than 200 km / h. An equilibrium gyroscope isarranged to provide stable redundancy for the vehicle, and vehicle operation stability is improved through the tilting train technology. Equilibrium stabilization bars are arranged on the upper sidesor the lower sides, corresponding to the wheels, on the inner wall of the pipeline to prevent the vehicle from being overturned, and rolling grooves are formed, so that the pipeline wall is preventedfrom being abraded. The system has the beneficial effects that the inside of the pipeline is smooth and free of tracks, the pipeline and the vehicle are simple in structure, construction and operationcost is low, and the system is suitable for a cross-sea channel with the low target speed.

The invention discloses an audio processing method and device for achieving independent output of multi-way audio tracks. The method comprises the steps of obtaining videos to be played; examining whether or not the videos contain the multi-way audio tracks; when the videos contain the multi-way audio tracks, each way of audio track is analyzed from the videos; the multi-way audio tracks in the videos are output to multiple sound cards and videos are played, wherein one way of the audio track corresponds to one sound card.

The invention provides a conductive adhesive, a solid conductive adhesive film and a preparation method and application thereof. The conductive adhesive is prepared from the following raw materials in specific parts: thermoplastic resin, thermosetting resin, conductive filler, a conductive accelerant and a curing agent. According to the conductive adhesive, thermoplastic resin is matched with thermosetting resin to serve as a matrix, and specific parts of conductive filler and conductive accelerant are added, so that the conductive adhesive has excellent conductive performance under the condition that the addition amount of the conductive filler is relatively low, and further the conductive adhesive has excellent mechanical performance; and the solid conductive adhesive film prepared from the conductive adhesive also has relatively high bonding strength and aging resistance, and can be applied to connection of devices in a module.

The invention relates to a low-silver-copper-based brazing filler metal and a preparation method thereof. The low-silver-copper-based brazing filler metal comprises Ag, Cu and P, wherein Sn, Ni and rare earth are further added, the weight percentages of the components are as follows: 1.5%-2.5% of Ag, 5.5%-6.6% of P, 5%-7% of Sn, 1.0-2.5% of Ni, not more than 0.05% of rare earth and the balance of Cu; the preparation method of the low-silver-copper-based brazing filler metal comprises the following steps of preparing Sn to filament Sn, smelting, continuously casting, continuously extruding, forming and cleaning to obtain the brazing filler metal. The brazing filler metal has the advantages of reasonable formulation design, lower brazing filler metal melting temperature, good wettability and mobility, stable quality of a soldered joint and long service life; a BCu80AgP copper-phosphorus brazing filler metal can be replaced, and the production cost of motor brazing is greatly reduced. The preparation method of the brazing filler metal can effectively solve a segregation problem of Sn, a preparation process is optimized, and the quality of the prepared brazing filler metal is remarkably improved.

The invention discloses a liquid-phase diffusion bonding method for quartz composite ceramic and an iron-nickel alloy. The liquid-phase diffusion bonding method comprises the following steps: surface cleaning is performed: the bonding surface of the iron-nickel alloy is cleaned with acetone, and nickel plating is performed on the bonding surface of the quartz composite ceramic with a chemical nickel plating process; an interlayer alloy is prepared: foil with a certain thickness is prepared from the interlayer alloy containing trace Ni, Ag and Cu elements; joint assembling clearance is designed; liquid-phase diffusion bonding is performed: the quartz composite ceramic material, the interlayer alloy and the iron-nickel alloy are assembled by a tool and placed into a vacuum furnace, nitrogen is introduced for protection, heat is preserved for 15-60 min at the temperature of 380-550 DEG C, and the cooling with the furnace is performed. The bonding joint of the quartz composite ceramic and the iron-nickel alloy is stable, the bonding strength is high, high-temperature resistance is realized, and the liquid-phase diffusion bonding method is particularly applicable to bonding of the quartz composite ceramic material and the iron-nickel alloy material which have large sizes.

The invention discloses a high-voltage cable connector, comprising a plug connector and a socket connector which are mutually connected in a plugged way. The high-voltage cable connector is applicable to connecting high-voltage cables with large diameter and high current and further locking cables with locking components, thus ensuring good stability.

The invention relates to the technical field of connection of prefabricated buildings in the discipline of civil engineering, and specifically discloses an energy-consuming bolt-type connection method for connecting concrete prefabricated columns and foundations. The specific steps are as follows: (1) prefabrication of upper prefabricated parts; (2) ) the installation of the lower embedded parts; (3) foundation template support and concrete pouring and maintenance; (4) prefabricated column installation pre-construction preparation; (5) precast column and foundation connection; (6) damper connection; ( 7) The pouring and maintenance of post-cast concrete at the joints. The invention not only improves the shear resistance of the bottom of the concrete prefabricated column, but also improves the overall anti-seismic performance, ensures the safety of the building, and is suitable for the connection between the concrete prefabricated columns of various specifications and the foundation.

The invention discloses an installation method for a fuel cell air compressor under complex distribution of bolt holes. The method particularly provides three ways. According to the first and second ways, when nuts are not considered, that is, when bolt-workpiece bolt holes are installed, no problem exists, that is, the installation method is suitable for any complex bolt hole distribution. The third way is a universal control method for installation of the bolt, the workpiece and the nut and installation of the bolt and the workpiece. The installation method for the fuel cell air compressor under complex distribution of the bolt holes, the bolt installation efficiency of workpieces is improved.

Bottom plate built-in rail shock absorber and its design method, including bottom plate, top plate, rubber layer and elastic clips that cooperate with the top plate to press the steel rail, characterized in that the bottom plate is placed in the top plate, and vulcanized by the rubber layer and the top plate Connection, the vulcanized connection surfaces of the bottom plate and the top plate are sloped, and the bottom plate is provided with anchor holes for fixing with sleepers. In the present invention, the bottom plate is arranged in the top plate, that is, the installation position of the track damper is designed inside the product, and the requirement for the installation size of the sleeper is reduced. Lateral rigidity, realizing the adjustable stiffness of the rail shock absorber, reducing the probability of permanent deformation of the rubber layer, improving the reliability of the rail shock absorber, simpler vulcanization molding, lower requirements for molds, processes, and equipment, and improving The lateral restraint performance of the rail shock absorber improves the safe driving performance of the road section with small curve radius.