会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 1. 发明申请
    • MULTI-SPEED HYDRAULIC JACK
    • 多速液压缸
    • WO2009132438A1
    • 2009-11-05
    • PCT/CA2009/000563
    • 2009-04-28
    • JACKSON, George W
    • JACKSON, George W
    • B66F3/42B66F3/25B66F3/26F15B7/04
    • B66F3/26B66F3/42F15B7/04F15B11/022
    • A multi-speed jack, having a pump assembly including a pump block having a first cylinder and a second cylinder defined therein, a piston assembly movable within the pump block, the piston assembly having a first portion configured to sealably engage with the first cylinder and a second portion configured to sealably engage with the second cylinder, a reservoir for storing hydraulic fluid and coupled to the pump block so that when the piston assembly is moved in a first direction, hydraulic fluid in the reservoir is supplied to the first cylinder and the second cylinder, a lifting assembly having a ram chamber and a ram rod, the ram chamber coupled to the pump assembly and configured to receive fluid from the first cylinder and the second cylinder when the piston assembly is moved in a second direction so as to raise the ram rod and a bypass check valve provided in the first cylinder. The bypass check valve is configured so that when the piston assembly is moving in the second direction and the pressure in the first cylinder exceeds a threshold pressure, the hydraulic fluid in the first cylinder returns to the reservoir. The second cylinder may be much smaller to provide leverage to move a far greater load though at a much slower rate.
    • 一种多速千斤顶,具有泵组件,泵组件包括具有限定在其中的第一气缸和第二气缸的泵块,活塞组件可在泵体内移动,活塞组件具有构造成与第一气缸密封接合的第一部分, 配置成与第二气缸密封接合的第二部分,用于存储液压流体并联接到泵块的储存器,使得当活塞组件沿第一方向移动时,储存器中的液压流体被供应到第一气缸,并且 第二气缸,具有柱塞室和活塞杆的提升组件,所述活塞室联接到所述泵组件并且构造成当所述活塞组件沿第二方向移动时被配置为接收来自所述第一气缸和所述第二气缸的流体,以便升高 柱塞杆和设置在第一气缸中的旁通止回阀。 旁通止回阀构造成使得当活塞组件沿第二方向移动并且第一气缸中的压力超过阈值压力时,第一气缸中的液压流体返回到储存器。 第二个气缸可能要小得多,以提供更大负载的杠杆作用,但速度要慢得多。
    • 5. 发明申请
    • A COMPACT, RESISTANCE REGULATED, MULTIPLE OUTPUT HYDRAULIC PACKAGE AND SEAL VALVE ARRANGEMENT
    • 紧凑,电阻调节,多输出液压包装和密封阀安排
    • WO00047909A1
    • 2000-08-17
    • PCT/US1999/029347
    • 1999-12-10
    • B21J15/20F15B7/04F15B15/14F15B15/20H01R43/042F16D31/02
    • F15B15/1433F15B15/1447F15B15/149F15B15/204Y10T137/7734Y10T137/7771Y10T137/7905
    • A hydraulic tool (10) includes housing structure (16), a pump piston (20) disposed in the housing structure (16) to define a pumping chamber (D) at one end thereof and a pump reservoir chamber (E) at another end of the pump piston. The pump piston (20) moves within the housing structure (16) to develop pressure on fluid in the pumping chamber (D). A ram piston (18) is disposed in the housing structure (16) to define a drive chamber (C). The ram piston (18) has a front surface and an opposing rear surface. An accumulator (30) is in selective communication with the rear surface of the ram piston (18). Valve structure (36) is constructed and arranged to selectively communicate the drive chamber (C) with the pump reservoir chamber (E) and with the accumulator (30) thereby initiating movement of the ram piston (18) in a direction opposite the certain direction.
    • 液压工具(10)包括壳体结构(16),设置在壳体结构(16)中的泵活塞(20),以在其一端限定泵送室(D),在另一端限定泵储存室(E) 的泵活塞。 泵活塞(20)在壳体结构(16)内移动以在泵送室(D)中的流体上产生压力。 柱塞活塞(18)设置在壳体结构(16)中以限定驱动室(C)。 柱塞活塞(18)具有前表面和相对的后表面。 蓄能器(30)与活塞活塞(18)的后表面选择性连通。 阀结构(36)被构造和布置成选择性地将驱动室(C)与泵储存室(E)和蓄能器(30)连通,从而启动压头活塞(18)沿与特定方向相反的方向的运动 。