Curvature radius adjustable prefabricated box-beam mold and construction method thereof

The invention discloses a precast box girder mould with adjustable curvature radius and an installation method of the mould. Through adopting the conception of replacing the curve with a fold line with fixed length, the accurate lofting of the bottom mould, designing the side mould consisting of a plurality of fixed sections with a fixed length, providing elasticity changing sections and regulating and connecting bars between the fixed sections with a fixed length, the capacity of adjustable curvature radius of the fold line with a fixed length is realized. Meanwhile, through embedding regulating blocks on the side mould to realize the regulating of the length of an inner arc and an outer arc, the needs of fixed cross section and the prefabricated construction components with variable camber are met, and the manufacturing and constructing need of the continuous changing section faces and the prefabricated construction components are met. Adopting the prefabricated box girder mould with ...

Curvature radius adjustable prefabricated box-beam mold and construction method thereof

Whole dismounting and whole mounting integral slippage large formwork for thin wall U-shaped beam

The invention discloses a thin wall large formwork with a U-shape beam, which is used in entirely sliding moving by entirely dismantling and entirely installing. The invention includes an outer lateral die, an inner lateral die, an end die, a bottom die, a gantry, a rotation adjusting mechanism and a supporting mechanism; the inner lateral die includes a main segment of the inner lateral die and a lower turning plate, the lower turning plate is rotatablely connected with the main segment of the inner lateral die; the outer lateral die is arranged on the left side and the right side of the outer part of the die, a transverse moving traveling wheel or a sliding mechanism is arranged on the lower part of the die, a plurality of regulating supports are also arranged on the lower end part of the outer lateral die; the gantry includes a supporting frame and a gantry beam, a vertical traveling wheel and a rail are arranged on the lower part of the supporting frame; one end of the rotation adjusting ...

A method for testing line defects of LCD (liquid crystal display) panel, array substrate and drive wires

A method for testing line defects of an LCD panel, an array substrate and drive wires. The LCD panel comprises a plurality of groups of drive wires and a plurality of detection terminals, and each group of the drive wires at least comprises two drive wires, wherein the LCD panel further comprises a plurality of first switches, a plurality of second switches, a first switch control wire used for controlling the plurality of first switches, and a second switch control wire used for controlling the plurality of second switches, and one end of each of the two drive wires of at least one group of the drive wires is connected with one detection terminal through one first switch and one second switch respectively. At least two drive wires share one first detection terminal, so that the using times of probes can be reduced; the distance among the detection terminals are enlarged, and the defect of detection error caused by short circuit of the adjacent probes as soon as the probes are slightly ...

Hidden installation hand hole molding mould

The invention discloses a mould for concealed mounting hand holes, comprising an iron vertical core mould and a standardized rubber bush, wherein, the standardized rubber bush comprises a vertical rubber bush body and a sealing spigot; the rubber bush body is sealed on the top; the sealing spigot is extended out transversely from the side wall of the rubber bush body corresponding to a cavity of an embedded part; the whole rubber bush is L-shaped; the shape of the sealing spigot is matched with the section shape of the cavity of the embedded part; the sealing spigot is extended into the cavity of the embedded part to seal the port of the cavity; the iron vertical core mould is arranged in an inner cavity of the rubber bush body and is in adaptive fit with the inner cavity of the rubber bush body; and the lower end of the iron vertical core mould is fixedly connected with a concrete-placing template. Through adopting the mode of combining the rubber bush and the iron core mould, the mould ...

Bottom die and core mould integrated slidable stencil and construction process

The invention provides a bottom mold and core mold integrated sliding template and a construction process. The process is suitable for manufacturing an n-shaped section pretensioning prestressed concrete beam and can be broaden and applied to the manufacture of the pretensioning prestressed concrete beam with a downward open mold cavity. The bottom mold and core mold integrated sliding template comprises a ground crossbeam connected and fixed with a pedestal foundation, a slippage limiting and locking mechanism which is arranged on the ground crossbeam and consists of a slippage contact block, a limit block and a positioning pin, a bottom mold rack arranged on the slippage limiting and locking mechanism, and a bottom mold and a core mold of a beam body section which are connected with thebottom mold rack into a whole; a bottom mold of a supporting seat part is placed on the bottom mold rack by an adjusting cushion block; and the bottom mold can be independently adjusted so as to meetrequirement ...

Hidden installation hand hole molding mould

The invention discloses a mould for concealed mounting hand holes, comprising an iron vertical core mould and a standardized rubber bush, wherein, the standardized rubber bush comprises a vertical rubber bush body and a sealing spigot; the rubber bush body is sealed on the top; the sealing spigot is extended out transversely from the side wall of the rubber bush body corresponding to a cavity of an embedded part; the whole rubber bush is L-shaped; the shape of the sealing spigot is matched with the section shape of the cavity of the embedded part; the sealing spigot is extended into the cavity of the embedded part to seal the port of the cavity; the iron vertical core mould is arranged in an inner cavity of the rubber bush body and is in adaptive fit with the inner cavity of the rubber bush body; and the lower end of the iron vertical core mould is fixedly connected with a concrete-placing template. Through adopting the mode of combining the rubber bush and the iron core mould, the mould ...

Novel embedded part for connecting stator and concrete beam

The invention provides a novel embedded part for connecting a stator and a concrete beam. The embedded part comprises an embedded part body, an assembly cavity, an assembly through hole and a fixing structure, wherein, one end of the embedded part body is provided with an assembly cavity with one side opened, while the other end surface is provided with the assembly through hole of the assembly cavity; and the fixing structure is arranged outside the embedded part body. The embedded part has the advantages that an embedded part for connecting the stator is pre-embedded, and the embedded part is formed with the concrete beam at the same time, thereby solving the problem of connection of the stator and the concrete beam on a magnetic suspension concrete track girder; the assembly cavity of the embedded part combined with a reserved handhole can conveniently realize assembly and fastening of a stator fixed nut; the stator fixed nut adopts a handle mode or other irregular modes and can effectively ...

Novel embedded part for connecting guide plate and concrete beam body

The invention discloses a novel embedded part for connecting a guide plate and a concrete beam body, which comprises an embedded part body, wherein one end of the embedded part body is provided with a platform structure used for connecting the guide plate; and a connecting hole is vertically arranged on the platform structure and runs through the embedded part body. The embedded part solves the problem of the connection of the guide plate and the concrete beam body on an integral magnetic suspension concrete rail beam and ensures convenient embodiment and positioning in a concrete beam body pouring process, and convenient operation and firmness and reliability during post machining and stator installation processes.