The invention discloses a buried air pressure balance waterproof lifting device and relates to the field of lifting devices.The device comprises a lifting outer column, a lifting inner column, a push rod and a baffle. A spring cup is arranged between the baffle and the push rod; the lifting outer column, the lifting inner column and the spring cup are of a hollow structure and sequentially comprise an outer column cavity, an inner column cavity and an exhaust cavity, the outer column cavity is communicated with the inner column cavity, and the inner column cavity is communicated with the exhaust cavity. The baffle is provided with a drainage pressure chamber, and a gap for air circulation is arranged between the baffle and the spring cup. According to the lifting device, it can be guaranteed that the piston moves smoothly, and meanwhile rainwater/accumulated water is prevented from entering the lifting device.

    本发明公开了一种地埋式气压平衡防水升降装置,涉及升降装置领域,该装置包括升降外柱、升降内柱、推杆和挡板,所述挡板与推杆之间设置有弹簧杯;所述升降外柱、升降内柱和弹簧杯为中空结构:依次为外柱腔体、内柱腔体和排气腔体,所述外柱腔体和内柱腔体相连通,所述内柱腔体与排气腔体相连通;所述挡板上开有排水压力舱,所述挡板与弹簧杯之间设置有供空气流通的间隙。本发明能够保证活塞运动顺利进行的同时,避免雨水/积水进入升降装置的内部。


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    Title :

    Buried air pressure balance waterproof lifting device


    Additional title:

    一种地埋式气压平衡防水升降装置


    Contributors:

    Publication date :

    2021-09-17


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    E01F ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE , Zusätzliche Baumaßnahmen, wie die Ausstattung von Straßen oder die bauliche Ausbildung von Bahnsteigen, Landeplätzen für Hubschrauber, Wegweisern, Schneezäunen oder dgl. / 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



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