Double-pump type hydraulic jack

Double-pump type hydraulic jack

  • CN 203,419,713 U
  • Filed: 08/22/2013
  • Issued: 02/05/2014
  • Est. Priority Date: 08/22/2013
  • Status: Active Grant
First Claim
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1. a double-pump type oil jack, comprise underframe (1), be arranged on the rocking arm (2) on described underframe (1) and be fixed on the pallet (3) on described rocking arm (2) top, it is characterized in that:

  • the tail end of described rocking arm (2) is provided with the oil cylinder (6) that cylinder bar (5) acts on the tail end of described rocking arm (2), described oil cylinder (6) is fixed on the stern frame (4) that is arranged at underframe (1) tail end, the outer fuel tank cylinder (7) that is arranged with of described oil cylinder (6), described fuel tank cylinder (7) is connected with two and is symmetricly set on the other end of described stern frame (4) and sends the oil in it to hydraulic hand pump (8) in described oil cylinder (6), the oil circuit that described hydraulic hand pump (8) send the oil of described fuel tank cylinder (7) to enter described oil cylinder (6) is provided with safety valve (68).

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