2results about How to "Effort-saving opening and closing" patented technology

The novel corrosion-resistant buried stainless steel gate valve comprises a valve body, a valve rod is longitudinally arranged in the valve body in a penetrating mode, a flow intercepting plate used for controlling a channel to be opened and closed is fixed to the valve rod, the top end of the valve rod penetrates through the valve body, and the side face of the flow intercepting plate is of a cambered surface structure. According to the utility model, the telescopic structures of the sleeve and the sliding rod can be freely adjusted along with the settlement or the upheaval of the ground, the position of the valve body does not need to be frequently adjusted, and when in use, the sliding rod is firstly pulled into the groove, and then the sliding rod is pulled into the groove; further rotation is carried out to push into the deep part of the groove for height fixation; the grip is arranged on the peripheral side of the wheel disc to increase torque, meanwhile, an operator can stand on the ground for operation, and labor is saved when the gate valve is opened and closed. And the gasket is arranged in the compression ring, and the closure plate is matched with the gasket, so that the sealing performance of the valve body is more reliable.

The present application relates to the field of multi-link support mechanism, and discloses a sliding groove multi-link support mechanism, which comprises a mounting seat connected to a first mounting base and provided with a guide sliding groove, a hinge assembly comprising a first link, a second link and a third link, first and second ends of the first link are respectively slidably hingedly connected to the guide sliding groove and hingedly connected to a second mounting base to form a first hinge point, the second link is crossly arranged with the first link and is hingedly connected at the cross position to form a second hinge point, first and second ends of the second link are respectively hingedly connected to the mounting seat and a first end of the third link to form a third hinge point, a second end of the third link is hingedly connected to the second mounting base to form a fourth hinge point, and a line connecting the first, second, third and fourth hinge points forms a quadrilateral, a transmission assembly is arranged on the mounting seat and is used for transmission cooperation with the first mounting base, and an elastic assembly is arranged on the mounting seat, and the elastic assembly exerts elastic force on the transmission assembly to enable the second mounting base to maintain its opening and closing state.