The invention discloses a hydraulic jack with a pressure alarm function; the hydraulic jack comprises a jack pedestal and a column cap arranged in the jack pedestal; the jack pedestal is provided with a hydraulic oil connecting seat; a seal pad is arranged between the hydraulic oil connecting seat and the jack pedestal; a pressure alarm module is arranged in the hydraulic oil connecting seat, and comprises a pressure sensor, a microprocessor, a liquid crystal display module, a horn and a lithium battery module; the pressure sensor is connected with a hydraulic oil path of the hydraulic oil connecting seat; an output end of the pressure sensor is connected with the microprocessor; an output end of the microprocessor is respectively connected with the liquid crystal display module and the horn; the lithium battery module is respectively connected with the pressure sensor, the microprocessor, the liquid crystal display module, and the horn. The hydraulic jack is safe and reliable, accurate in detection, long in life, wide in application scope, and simple in structure.
Hydraulic jack with pressure alarm function
2016-01-27
Patent
Electronic Resource
English
IPC: | B66F HOISTING, LIFTING, HAULING, OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD , Hub-, Verhol- oder Schubvorrichtungen, soweit nicht anderweitig vorgesehen, z.B. Vorrichtungen mit unmittelbarer Krafteinwirkung auf die Last |
Horizontal hydraulic jack with height adjusting function
European Patent Office | 2024
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