36results about How to "Achieve a tight fit" patented technology

The invention provides a conveniently used mechanical sealing element. The conveniently used mechanical sealing element comprises a pipeline and two attached discs, wherein threaded holes which penetrate through two end surfaces of the discs and are screwed with the pipeline are formed in the two discs, annular plastic pieces are fixedly installed on the opposite sides of one disc, and round clamping grooves matched with the annular plastic pieces are formed in the other disc. A plug pin is fixedly installed on the opposite side of one of the two discs, a slot matched with the plug pin is formed in the other disc, the bottom of the slot is communicated with a rectangular clamping groove, the aperture of the rectangular clamping groove is larger than that of the slot, and an elastic telescopic piece matched with the rectangular clamping groove is arranged on the plug pin. As the pipeline is screwed in the threaded hole in the disc, the plug pin is inserted into the slot, and the aperture of the rectangular clamping groove is larger than that of the slot, the elastic telescopic piece can be clamped in the rectangular clamping groove.

The invention provides a supporting device for a water conservancy pipeline. The supporting device for the water conservancy pipeline comprises a base, two movable supporting arms, a reinforcing partand a rotating part, wherein an accommodating cavity is formed inside the base; the rotating part is arranged inside the accommodating cavity, and the two movable supporting arms are symmetrically arranged on the two sides of the top of the base; the reinforcing part and the two movable supporting arms are combined to form a through groove used for accommodating the water conservancy pipeline; rotating blocks are arranged on the two sides of the water conservancy pipeline, and each rotating block is abutted against the corresponding movable supporting arm; the rotating part comprises a rotating shaft, transmission chains, a worm and a driving motor; one end of the rotating shaft is provided with driven gears, and the other end of the rotating shaft is provided with a driving gear; the opening end parts of the transmission chains are fixedly connected with corresponding rotating blocks of the transmission chains, and the transmission chains mesh with the driven gears; the worm is rotatably arranged inside the accommodating cavity and meshes with the driving gear; and the driving motor can drive the worm to rotate. According to the device, the water conservancy pipeline is rotationally adjusted through the rotating part, so that the joint is matched, and the assembling efficiency and the mounting stability are improved.

The invention discloses an anti-blocking scriber for a test field. The anti-blocking scriber comprises an ash bucket and upright rods, wherein totally two upright rods are arranged; an ash outlet is formed in the bottom end of the ash bucket; the ash bucket is connected with the upright rods by virtue of a reciprocating mechanism; an anti-blocking mechanism is arranged on the ash bucket and comprises a digging rope; one end of the digging rope is connected with the reciprocating mechanism; the other end of the digging rope penetrates through the inner cavity of the ash bucket so as to extend to the ash outlet and is connected with an ejector; the ejector is matched with the ash outlet; the ejector comprises a tip; a striking rod is connected onto the digging rope; a first connecting rod ishinged onto the striking rod; and the first connecting rod is connected with the outer wall of the ash bucket. By virtue of dual actions of ejecting and shaking, blanking normality is ensured, the operation is convenient and rapid, and time and labor can be saved. Meanwhile, the operation of opening and closing the ash outlet at an optional position is realized in the scribing process, the scriber is multifunctional, and the working efficiency is improved.

The invention discloses a method and equipment for preparing fire-resistant and anti-corrosive C type steel, and belongs to the technical field of anti-corrosive building material. The equipment comprises a bonding hole punching machine, a forming machine and an extrusion cladding machine arranged in sequence from front to back; the equipment is characterized in that an extrusion die is mounted inside a package molding machine, a C type steel inlet is arranged on the front end of the extrusion die, a C type steel outlet is arranged on the rear end of the extrusion die, the C type steel outlet is larger than the C type steel inlet, a cladding chamber connecting the C type steel inlet and the C type steel outlet is arranged inside the extrusion die, a flow pass connecting the cladding chamber is arranged in the side wall of cladding chamber, the other end of the flow pass is communicated with a filling port, and the filling port is connected with a plasticizing extruder. When the C type steel is extruded and cladded, the cladded material in a melted state is extruded to the upper surface and the lower surface of the C type steel through the flow pass, then through being connected by the bonding hole, the complete set of equipment enables the cladding layer to form a whole with multiple connection points, which reinforces the robustness, thereby the lasting anti-corrosive ability of the C type steel is heightened.