Patents for E21D 15 - Props; Chocks (3,432)
07/2014
07/23/2014CN203730020U 一种带有不锈钢复合层的液压支架立柱、千斤顶 One kind of composite layers with stainless steel hydraulic support column, Jack
07/23/2014CN203730019U 急倾斜中厚煤层用可调掩护支架 Steeply inclined thick seam in the cover with adjustable bracket
07/23/2014CN203730018U 一种折叠式打井机 A folding drilling machine
07/23/2014CN203730017U 一种矿用圆角梯形支架 Trapezoid with rounded bracket Ore
07/23/2014CN103939117A 液压支架解体顶销装置 Top pin means the disintegration of hydraulic support
07/23/2014CN103939116A 一种全方位高强度可压缩的u型钢卡缆 A holistic compressible u high strength steel cable card
07/16/2014CN203716996U 煤矿井下车用单体支柱架设装置 Prop coal mine car mount devices
07/16/2014CN203716995U 煤矿液压支架立柱用底阀 Mine hydraulic support column with foot valve
07/16/2014CN203716994U 一种带塞的单体支柱三用阀 Prop A stoppered with three valves
07/16/2014CN203716993U 柔性矩形金属支架 Flexible rectangular metal stents
07/16/2014CN203716992U 用于急倾斜中厚煤层柔性掩护系统的支护单元 Steeply inclined thick seam for the flexible shield system support unit
07/16/2014CN103924993A 一种远距可视大流量显压记忆型安全阀 One kind of remote visual memory type large flow of significant pressure relief valve
07/16/2014CN103924992A 钢管混凝土支架让压装置及使用方法 Steel concrete racks allow pressure device and method of use
07/16/2014CN103924991A 矿用内注式单体液压支柱 Mine within the injection-type hydraulic prop
07/16/2014CN103924990A 高强度可缩支架 High strength can be reduced stent
07/16/2014CN102787853B 液压单体支柱防柱阀崩出装置 Hydraulic cylinder valve collapse anti-Prop-out means
07/09/2014CN203703111U 一种单体支柱密封盖 One monomer pillar closures
07/09/2014CN203702198U 煤矿用电动注液泵 Mine electric injection pump
07/09/2014CN203702197U 矿用单体液压支柱平衡微调装置 Mine monomer hydraulic prop balance fine-tuning device
07/09/2014CN203702196U 一种交替单向阀 An alternating one-way valve
07/09/2014CN203702195U 液压支架操作手柄闭锁装置 Hydraulic support operating handle locking device
07/09/2014CN203702194U 一种液压支架及其操纵阀 A hydraulic control valve stent and
07/09/2014CN203702193U 一种整体弹簧复位插装式手动换向阀 A holistic spring return Cartridge manual valve
07/09/2014CN203702192U 液压支架脚踏板装置 Hydraulic support device pedals
07/09/2014CN203702191U 一种可伸缩柔性掩护支架 A scalable Flexible Shield
07/09/2014CN203702190U 叠交隧道或近距离施工隧道用支撑组件 Overlapped construction of tunnels or tunnels with close support assembly
07/09/2014CN203702189U 临时超前支护装置 Temporary advance support device
07/09/2014CN103912295A 新型移动式手动快速升柱器 The new mobile device manual rapid rise column
07/09/2014CN103912294A 一种使用光纤的工作面液压支架组直线度控制方法 A method of using Hydraulic Support Group fiber straightness control method
07/09/2014CN103912293A 一种使用张力传感器校正工作面液压支架组直线度的系统 A method of using tension sensor calibration Hydraulic Support Group straightness system
07/02/2014CN203685233U 煤矿综采设备装车装置 Coal mining equipment loading device
07/02/2014CN203685232U 一种500L/min插装硬密封换向阀 One kind of 500L / min hard sealing valve cartridge
07/02/2014CN203685231U 一种液压支架用2000L/min安全阀 A hydraulic support with 2000L / min safety valve
07/02/2014CN203685230U 立柱防护装置 Column guards
07/02/2014CN203685229U 一种单体液压支柱水压三用阀 A single hydraulic prop hydraulic valve with three
07/02/2014CN203685228U 一种多功能软质防倒器 A multifunctional soft anti-down device
07/02/2014CN203685227U 具有接头防护罩的液压千斤顶及液压支架 Has a joint shield hydraulic jacks and hydraulic support
07/02/2014CN203685226U 一种矿用活塞式清水液压支柱 Ore piston type water hydraulic pillar
07/02/2014CN203685225U 一种煤矿井下轴底向斜开采支护装置 One kind of mining coal mine shaft bottom syncline support device
07/02/2014CN103899339A 一种井下撤架安装方法 A downhole withdrawal rack mounting method
07/02/2014CN103899338A 一种基于空间坐标变换的液压支架工作姿态确定方法 A method to determine based on the spatial coordinate transformation hydraulic support work attitude
07/02/2014CN102797485B 煤矿综采液压支架回转安放平台 Mine hydraulic support platform mounted slewing
07/02/2014CN102678137B 可缩性格栅支架及其使用方法 Retractable grille bracket and method of use
07/01/2014US8764349 Gob shield for shield support and method for the production thereof
06/2014
06/25/2014CN203669896U 用于放顶煤液压支架的后溜连接头 After caving coal hydraulic support for the slip connector
06/25/2014CN203669895U 一种液压支架排水装置的接口 Interface A hydraulic support drainage device
06/25/2014CN203669894U 带防护罩的液压支架底调千斤顶 Hydraulic bottom bracket with protective cover tune jack
06/25/2014CN203669893U 一种柱鞋 A POST shoes
06/25/2014CN203669892U 电液控制放顶煤过渡液压支架 Electro-hydraulic control caving coal hydraulic support transition
06/25/2014CN203669891U 防止工字钢牙壳崩飞装置 To prevent the collapse of the I-beam tooth shells flying device
06/25/2014CN203669890U 液压支架活柱 Hydraulic support plunger
06/25/2014CN203669889U 一种单体液压支柱存放架 One monomer hydraulic prop storage rack
06/25/2014CN203669888U 井下十字口巷道支护装置 Underground crossroad roadway devices
06/25/2014CN203669879U 井下液压支架组装硐室 Downhole hydraulic support assembly CHAMBER
06/25/2014CN103883338A 一种含有液压增压器的液压支架立柱自助增压系统 Containing a hydraulic booster hydraulic support column buffet pressurization system
06/25/2014CN103883337A 综采回撤工作面扇形区支护液压支架 Face mechanized mining sector retracement hydraulic supports
06/25/2014CN103883336A 一种先主动后让压支护的可调节沿空留巷墙体及其施工方法 After a prior initiative to Pressure Support adjustable for Gob wall and its construction method
06/25/2014CN103883335A 一种矿用可调支撑装置 Adjustable support device Ore
06/18/2014CN203655319U 液压支架用导杆机构 Hydraulic support with guide rod mechanism
06/18/2014CN203655318U 薄煤层液压支架操纵阀组位置调节装置 Operated hydraulic valve stent thin seam position adjustment device
06/18/2014CN203655317U U型棚腿固定结构 U-shed legs fixed structure
06/18/2014CN203655316U 一种煤矿充填支架的顶部隔离装置 On top of a coal filling isolator bracket
06/18/2014CN203655315U 柔性可伸缩巷道抗冲击液压支架 Flexible and scalable roadway impact hydraulic support
06/18/2014CN203655314U 轻型薄煤层导杆式液压支架 Lightweight thin seam guide rod hydraulic support
06/18/2014CN203655313U 磁性液体密封的矿用液压支柱 Magnetic fluid sealing mine hydraulic prop
06/18/2014CN103861345A Pipeline type filtering device
06/18/2014CN102691512B Auxiliary assembly and disassembly machine for hydraulic supports
06/18/2014CN102678140B Rotation device of hydraulic support retraction machine
06/18/2014CN102619540B Hydraulic support placing machine turntable device
06/11/2014CN203640748U 矿用单体液压支柱密封系统 Mine hydraulic prop sealing system
06/11/2014CN203640747U 液压支架、抬底千斤顶及其活塞杆 Hydraulic support, lift jacks and rod end
06/11/2014CN203640746U 一种用于防止综采工作面电缆脱槽的液压支架机械手装置 A hydraulic robot device stand mechanized mining face to prevent the cable off the tank
06/10/2014US8746659 Device for opening a pull door by applying a pressure
06/04/2014CN203626861U 综采支架下放装置 Decentralization of mechanized mining equipment stand
06/04/2014CN203626860U 用于液压高支柱的稳定装置 Stabilizing device for hydraulic high pillar
06/04/2014CN203626859U 一种用于液压支架的加长型翻转伸缩装置 Long flip telescopic device for hydraulic support
06/04/2014CN203626858U 安全阀 Safety valve
06/04/2014CN203626857U 三角形断面梁圆组合可缩性支架 Liang Yuan combination triangular section retractable stand
06/04/2014CN203626856U 可调角度支护固定架 Adjustable angle support bracket
06/04/2014CN103835735A Parallelogram mechanism capable of realizing small stroke and long movement distance through oil cylinder
06/04/2014CN103835734A Individual hydraulic prop large-flow water pressure three-purpose valve
06/04/2014CN103835733A Back flushing filter for underground coal mine hydraulic support
06/04/2014CN103835732A Supporting force automatically adjusting type hydraulic supporting monitoring system for tunnel roof
05/2014
05/28/2014CN203614115U 双密封无活塞纯水单体液压支柱 No double-sealed piston water hydraulic prop
05/28/2014CN103821545A 可完成大力矩回转的组合回转支承 To be completed by a combination of high torque rotary slewing ring
05/22/2014WO2014075143A1 Improvements in or in relation to mine roof cribs and associated joiners
05/21/2014CN203603939U 带有移后溜装置的放顶煤液压支架底座 After having moved slip means caving hydraulic support base
05/21/2014CN203603938U 一种整体插装式锥面密封换向阀 A holistic Cartridge cone seal valve
05/21/2014CN203603937U 液压支架用双伸缩立柱 Hydraulic support with Double Telescoping
05/21/2014CN203603936U 一种手动机械式轻型单体支柱 A manual mechanical Light Prop
05/21/2014CN103806927A 钢拱架拼装机 Steel arch erector
05/15/2014WO2014045204A4 Fluid filled support container containment
05/15/2014DE10158477B4 Druckbegrenzungsventil mit Schutzrohr Pressure relief valve with protective tube
05/14/2014CN203594955U 立柱润滑装置 Column lubrication device
05/14/2014CN203594461U 液压支架立柱的导向套 Hydraulic support column of the guide sleeve
05/14/2014CN103790796A 水动泵站 Hydrodynamic pumping station
05/14/2014CN102606177B 一种用于液压支架系统的液压支柱 A hydraulic strut hydraulic support systems
05/14/2014CN102536274B 等压双伸缩立柱 Isobaric Double Telescoping
05/07/2014CN203584441U 单体支柱拆柱机 Prop demolition column machine
05/07/2014CN203584440U 一种金属环线硬密封回液断路阀 Hard metal ring seal back to the liquid shutoff valve
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