91精品国产91_国产伦精品免费视频_日韩久久一级片_国产精品美女免费看

Patent Operation Platform

Patent

[CN 201720541067.5] gravity balance constant pressure oil tank for press


[CN 201720541067.5] Title of a gravity balanced constant pressure oil tank for presses: Application number of a gravity balanced constant pressure oil tank for presses: CN 201720541067.5 Applicant: Henan Zhengkai Yuan Machinery Technology Co., Ltd. Application date: 2017-5-16 Patent type: Utility model The model discloses a gravity balanced constant pressure oil tank for presses, including an oil cylinder, an oil tank connected to the oil cylinder through an oil circuit, and a floating plunger matched with the oil tank, A filling valve is provided on the oil circuit, and a plurality of counterweight blocks are provided on the floating plunger of the oil tank. The floating plunger of the oil tank includes a plunger body and a plunger head. The diameter is larger than the diameter of the plunger head. The middle of the floating plunger of the oil tank is provided with a liquid injection port, which vertically penetrates the plunger head and the plunger body. The counterweight block is an annular structure and is sleeved on the floating plunger of the plunger of the oil tank. The application of the utility model on a press with a filling valve system improves the oil absorption performance of the main cylinder of the press when it is pressed down, can make the opening of the filling valve and the oil absorption response more rapid, and effectively improve the press Fast action speed.

主站蜘蛛池模板: 国产精品美女久久久免费| 激情小说综合区| 国产成人精品电影久久久| 欧美激情国产日韩| 国产精品美女网站| 久久av中文字幕| 91精品国产综合久久久久久蜜臀| 奇米影视首页 狠狠色丁香婷婷久久综合| 国产精品视频永久免费播放| 久久天天躁夜夜躁狠狠躁2022| 国产精品视频在线免费观看| 国产日本一区二区三区| 国产精品久久国产| 日本久久精品视频| 国产精品久久久久免费| 国产在线日韩在线| 久久久天堂国产精品女人| 午夜精品一区二区三区在线播放| 国产三区在线视频| 精品一区二区中文字幕| 免费影院在线观看一区| 亚洲福利av| 99免费视频观看| 国产不卡视频在线| www.日韩系列| 国产精品97在线| 国产精品黄视频| 国产精品久久久久久亚洲影视| 韩国v欧美v日本v亚洲| 久久成人免费视频| 久久国产乱子伦免费精品| 久久综合电影一区| 欧美在线日韩在线| 欧美一区二视频在线免费观看| 欧美视频在线第一页| 欧美激情亚洲综合一区| 日本一区精品| 美女久久久久久久久久久| 久久av喷吹av高潮av| 国产精品久久久久久免费观看| 91九色国产ts另类人妖|