重慶升降機閥套是唯一可備磨損的配件，閥門的按壓是用壓縮空氣施于閥套之上，很多人對升降平臺下面的閥套很是不理解，那么升降平臺閥套有哪些作用呢？

升降平臺閥套可以預防升降平臺在使用的時候滑動，確保了作業人員的人身安全，也同時能提高平臺的在載重量。升降平臺閥套內設置了控制閥，升降平臺還設有回油裝置。回油路在回油機構與油缸之間。現在的平臺改為柴油機，電動旋轉式兩種升降平臺，還研制了電瓶車載高空作業平臺，它是利用電瓶驅動升降，無級變速，可以使高空作業者更安全、方便、噪音降低并且環保。
Ningbo lifting platform lifting platform can prevent the sleeve to slide when in use, to ensure the safety of workers, and also to improve the load platform. Ningbo lifting platform valve kit set up a control valve, lifting platform also has oil return device. Between institutions and return oil back to the oil tanks. The platform is now replaced by diesel engines, electric rotary type two lifting platform, also developed a battery car aerial work platforms, it is the use of battery-driven lift, variable speed, you can make high-altitude operations more secure, convenient, noise reduction and environmental protection.

升降機的內外框架上下都分別通過軸承座和導軌板鏈接在底座和臺面架上。內外框架都跟銷軸相連，油缸分別鏈接內外框架，連個連桿都安裝在同步軸上，連桿跟油缸中間部分鏈接，結構方便裝卸，動作平穩，操作簡單。寧波升降平臺臺階孔內設有軸截面呈Ｕ形的閥套，閥套底面設有通孔。臺階孔與閥套之間形成有間隙，間隙即形成在閥套側壁與臺階孔側壁之間，間隙也可形成在閥套底部與臺階孔底部之間，閥套底部與臺階孔底部的間隙可以是通過開設導油槽實現，也可以通過在閥套底部設置粗糙表面實現。
Inside and outside the framework of both the upper and lower lift platform Ningbo respectively, through the bearing and rail links in the base plate shelves and countertops. Inside and outside the framework related to the pin connected to the fuel tank inside and outside the framework of each link, even a rod installed in the synchronized axis, the middle part of the cylinder rod with a link structure to facilitate handling, smooth operation, easy to operate. Ningbo lifting platform has a stepped bore axis U-shaped cross section of the valve sleeve, the valve sleeve has a bottom surface of the through hole. Formed between the stepped bore and the valve sleeve has a gap, i.e. a gap is formed between the valve sleeve and the stepped bore sidewall the sidewall, the gap may be formed between the bottom of the valve sleeve and the stepped hole bottom, the bottom of the valve sleeve and the stepped bottom of the hole gap can be realized through the creation of lead tank, you can also set up at the bottom of the sleeve to achieve a rough surface.