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[CN 201611212677.7] Press dust-proof air source connection device
[CN 201611212677.7] Title of dust-proof air source connection device for press: Application number of dust-proof air source connection device for press: CN 201611212677.7 Applicant: Chongqing Yongchuan Yirui Machinery Co., Ltd. Application Date: 2016-12-25 Patent Type: Application for Invention This patent discloses a dust-proof air source connection device for press, including a base and a movable workbench, a connecting seat is fixed on the base, a round hole is provided with a sleeve, and an air inlet is provided on the connecting seat, the mobile workbench is provided with an air outlet, and the sleeve slides up and down along the base through the opening and closing device to realize the disconnection and communication of the air inlet and the air outlet; the upper end of the sleeve is provided with an annular airbag fixed in the inner hole of the sleeve, and the middle of the annular airbag There are air holes, and the edge of the annular airbag is fixed to the inner wall of the sleeve; the sleeve is also provided with an air chamber, and the annular airbag, the gas chamber is filled with high-pressure gas. When the air pressure changes, the annular airbag will expand or contract. After the mobile workbench is lifted, the annular airbag has a blocking effect on the inner hole of the sleeve and has a dustproof effect. When the mobile workbench falls, the annular airbag shrinks and can Make the air inlet and the air outlet communicate.
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