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Crrc Qingdao Sifang Co Ltd patents


Recent patent applications related to Crrc Qingdao Sifang Co Ltd. Crrc Qingdao Sifang Co Ltd is listed as an Agent/Assignee. Note: Crrc Qingdao Sifang Co Ltd may have other listings under different names/spellings. We're not affiliated with Crrc Qingdao Sifang Co Ltd, we're just tracking patents.

ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "C" | Crrc Qingdao Sifang Co Ltd-related inventors


Train connector and inserted connection member thereof

An inserted connection member for a train connector includes an insertion needle, an insulator, a disconnection preventing pad and an extrusion block. The insulator is sequentially provided with a positioning hole and an inserted connection hole in an axial direction. The insertion needle includes a line connecting segment, a positioning... Crrc Qingdao Sifang Co Ltd

Control relay board for railway vehicle

A rail vehicle control relay board includes a main frame, a mother board and a daughter board assembly which are arranged in the main frame, the main frame includes a board face mounting frame and a daughter board mounting frame which protrudes from the board face mounting frame, the mother... Crrc Qingdao Sifang Co Ltd

Railway vehicle and derailment safety device thereof

An anti-derailment safety device is in a shape of an inverted letter L and includes a transverse portion and a longitudinal portion perpendicular to the transverse portion at a side below the transverse portion; two sides of the transverse portion in a width direction of the transverse portion are each... Crrc Qingdao Sifang Co Ltd

High voltage equipment box for railway vehicle

A high voltage equipment box for a rail vehicle includes a box body and electric equipment arranged in the box body, two ends of the box body in a width direction of the vehicle extend to respective skirt plates, and an avoidance gap is provided at a bottom of each... Crrc Qingdao Sifang Co Ltd

Colouring wrought aluminium alloy welded joint colour metallography

A colouring method for wrought aluminium alloy welded joint colour metallography, comprising pre-etching and colouring, wherein the pre-etching comprises an acid etching processing step. The acid etching processing is as follows: an acid etching solution is heated to 55° C.-65° C., dripped onto a test piece surface for 50 s-60... Crrc Qingdao Sifang Co Ltd

Detection pantograph arc based on train power supply system

A method and a system for detecting a pantograph-catenary electric arc based on a train power supply system are provided. The method includes: boosting, by a booster transformer, a voltage of alternating current transmitted via an electric network, to generate high voltage electrical energy, where a high voltage and a... Crrc Qingdao Sifang Co Ltd

Welding clamping device

A welding clamping device includes a base plate and two positioning slide blocks, each of the positioning slide blocks includes a slide base and a cam, wherein the slide base includes a support plate and two cam holders fixed at two opposite ends of the support plate; the cam is... Crrc Qingdao Sifang Co Ltd

High-speed rail train bogie and frame thereof

A high-speed rail train bogie frame includes side sills and cross beams located between the side sills, and each of the side sills is provided with an air spring seat configured to install an air spring; wherein each of the cross beams has a seamless steel tube structure; the frame... Crrc Qingdao Sifang Co Ltd

Device and testing flow field state within high-speed train bogie cabin

A device for testing a flow field state within a high-speed train bogie cabin; the periphery of a bogie consists of apron plates and end plates; the test device comprises: a plurality of test points evenly distributed on the inner walls of the apron plates and end plates, a plurality... Crrc Qingdao Sifang Co Ltd

Mounting structure for equipment compartment bottom plate

A mounting structure for equipment compartment bottom plate is provided. The bottom plate is detachably connected to a skeleton boundary beam of the equipment compartment. A sliding rail is fixedly connected to a side of the bottom plate where the bottom plate is lap-jointed to a skeleton lateral beam of... Crrc Qingdao Sifang Co Ltd

Track vehicle collision testing device and track vehicle collision testing method

A rail vehicle collision test rig used for a collision test on a tested vehicle is provided, and includes: a track configured to support and guide the tested vehicle; a small vehicle configured to push the tested vehicle; a drive motor configured to drive the small vehicle to advance and... Crrc Qingdao Sifang Co Ltd

Railway vehicle and head vehicle barrier-removing device thereof

A railway vehicle and a head car cowcatcher thereof are provided. The head car cowcatcher includes a flow guiding plate; a front-end frame mounted at a front end of an inner side surface of the flow guiding plate; and longitudinal sills mounted at two sides of the inner side surface... Crrc Qingdao Sifang Co Ltd

Air conditioning unit of track vehicle mounted under vehicle

An underfloor air conditioning unit of a track vehicle is a unitary air conditioning unit and includes a housing, an inside of the housing being divided into an indoor side and an outdoor side, and a condenser, a condenser fan, and a compressor are mounted in the outdoor side, wherein... Crrc Qingdao Sifang Co Ltd

Position-limiting device

A position-limiting device includes a base and a position-limiting member rotatably provided on the base, the position-limiting device further includes a positioning member. The base has a hollow portion. The position-limiting member is switchable between a position-limiting state and a non-position-limiting state, when the position-limiting member is in the position-limiting... Crrc Qingdao Sifang Co Ltd

Switching circuit for implementing coupling at random end of train

A switching circuit for implementing coupling at a random end of a train includes a coupling change-over switch which includes a switching position, a normal position, and a disconnected position. The coupling change-over switch includes a group of terminals A, B, C, D, E, F, G, and H that are... Crrc Qingdao Sifang Co Ltd

Simulation and experiment platform for high-speed train braking system and experiment method

A simulation platform for a high-speed train braking system and an experiment method. The simulation platform for a high-speed train braking system includes a virtual part and a real part. The virtual part includes: a vehicle multi-rigid-body simulation system, a basic braking simulation system, a dynamic braking simulation system, an... Crrc Qingdao Sifang Co Ltd

Limit detection system for railway vehicle

A clearance detection system for a railway vehicle includes a cross beam, an upright column connected to two ends of the cross beam through an adjusting block, an inclined support connected to the upright column and the cross beam for supporting the upright column and the cross beam, an electric... Crrc Qingdao Sifang Co Ltd

Method and device for transmitting signal among compartments of train

A method and a device for transmitting signals among compartments of a train are provided. The method comprises: S1, receiving a first signal transmitted via a jumper cable, and extracting first data carried in the first signal; S2, receiving a second signal transmitted wirelessly corresponding to the first signal, and... Crrc Qingdao Sifang Co Ltd

Securing system for freight wagon and freight wagon

A securing system for a freight wagon and a freight wagon are provided. The securing system includes an entrance area floor and non-entrance area floor in the freight wagon, multiple first rolling mechanisms and multiple turn position-limiting mechanisms are provided on the entrance area floor, multiple second rolling mechanisms, multiple... Crrc Qingdao Sifang Co Ltd

Simulation system for current collecting surface of c-type contact rail

A simulation system for a current collecting surface of a C-shaped contact rail includes a double-headed rail and a limiting plate. A current collecting end surface of the double-headed rail has a same current collection area as an actual C-shaped contact rail. The limiting plate matches the inner contour of... Crrc Qingdao Sifang Co Ltd

Method and device for automatically processing static test data of rail transit vehicle

A method and device for automatically processing static test data of a rail transit vehicle are provided. A target operation step is determined in accordance with a commissioning template. Information about a commissioning task step is sent to a terminal device, for prompting that the target operation step needs to... Crrc Qingdao Sifang Co Ltd








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