38results about How to "Force science" patented technology

The invention discloses a movable suspended protection rib plate supporting structure for a roadway. The movable suspended protection rib plate supporting structure comprises upper baffles, side baffles, an anchor rod, a top rotating shaft, side rotating shafts, an elastic slice and limiting elastic slices. One ends of the upper baffles are hinged to the top rotating shaft and the other ends of the upper baffles are hinged to the side rotating shafts, and the upper ends of the side baffles are hinged to the side rotating shafts. The upper end of the anchor rod is anchored at the top of the roadway, and the lower end of the anchor rod is hinged to or fixedly connected with the top rotating shaft, the top rotating shaft is arranged along extending direction of the roadway, and the upper baffles hinged to the two sides of the top rotating shaft form a reversed-U shape or a reversed-V shape. The two sides of the elastic slice are separately and fixedly connected with the lower surfaces ofthe upper baffles hinged to the two sides of the top rotating shaft, the limiting elastic slices are of C-shaped structures and are arranged on the lower surfaces of the upper baffles connected with the side rotating shafts and the inner side faces of the side baffles, and one sides of the limiting elastic slices are fixedly connected with the lower surfaces of the upper baffles or the inner surfaces of the side baffles. The movable suspended protection rib plate supporting structure can effectively overcome the defects of a traditional roadway supporting structure, and can effectively protectroof falling and rib spalling of a mine roadway and a temporary traffic tunnel.

The invention discloses an assembled inclined pile foundation for an offshore fan. Including the wind turbine tower, the steel pile foundation and the transition steel structure connected between the steel pile foundation and the wind turbine tower. The steel structure is connected to each other; the steel structure is transformed into a tree branch structure including a central tube and multiple welded branches around the central tube. The bottom of each branch is coaxially connected to the top of the steel pile foundation through a flange, and the top of the central tube is The blue plate is coaxially connected with the bottom end of the fan tower. The invention has strong bearing capacity, high reliability, good fatigue resistance, no on-site welding and grouting, and relatively low requirements on engineering equipment and construction technology.

The present application relates to an interventional valve delivery system, which includes a handle assembly and a pipeline. The handle assembly includes a casing, a transmission mechanism and a runner, the transmission mechanism is arranged in the casing, and the pipeline is connected with the transmission mechanism. The shell is provided with an open part, and the opening angle of the open part in the circumferential direction of the shell is greater than 180°. The runner is installed in the open part for rotation, and the runner is connected with the transmission mechanism, which is used to drive the transmission mechanism to drive the pipeline in the axial direction. Movement to achieve admission or release of the intervening valve. In this application, by setting the open part, the runner can only perform rotational movement, and will not move axially with the transmission mechanism and the pipeline, so as to avoid the damage to the pipeline adjustment accuracy caused by the simultaneous rotation and axial movement of the runner. influences. In addition, on one side of the open part of the housing, a product axial stress relief structure is designed, so that the handle assembly of the delivery system will not bear the axial force across the single side, so as not to affect the coaxiality of the delivery system , for smoother operation.

The invention provides a safety rope breaking strength detection fixture and a tester. The fixture comprises a base, a winding wheel, a connector and a pin. The base comprises a horizontal part and a vertical part, and the vertical part is vertically fixed to one side of the bottom surface of the horizontal part. The winding wheel is provided with a spiral winding groove, and one end of the winding wheel is fixed to the vertical part and is parallel to the horizontal part. The connector is fixed to the upper surface of the horizontal part, the pin is fixed to the side face, opposite to the vertical part, of the horizontal part and is parallel to the horizontal part, one end of a test rope is wound in the winding groove of the winding wheel, and the end of the test rope is fixed to the pin. According to the safety rope breaking strength detection fixture, the end of the test rope is fixed to the base through the pin instead of being fixed to the winding wheel, so that stress is more scientific; besides, the fixture can be miniaturized.

The invention relates to a cable traction reversed-V-shaped water retaining dam. The cable traction reversed-V-shaped water retaining dam is mainly applied to the hydraulic engineering construction field of water retention and storage of watercourses and reservoirs, farm irrigation, small hydropower stations and the like. A water retaining panel (1) of the water retaining dam is firmly connected to a dam foundation by a bottom shaft (8) through a hinge pedestal (9); a row of transmission supporting rods (2) are arranged on the back side of the water retaining panel (1) at equal intervals, connected into a whole through steel plate profiles and locked through a clamping device (11) to form a stable triangle supporting structure. A power device of the cable traction reversed-V-shaped water retaining dam is composed of a cable (7), a pulley block, the transmission supporting rods (2), a winch and the like; the pulley block is connected to the transmission supporting rods (2) and the dam foundation and are rotated positively and negatively through the winch, and therefore the dam erection and dam dropping are achieved. The cable traction reversed-V-shaped water retaining dam is simple in structure, fast in damp dropping and dam erection, safe, reliable, economical, durable and not limited by water quality or territory.

The invention discloses a construction device for a bowl button type steel pipe scaffolding sweeping pole casing, which belongs to the field of building scaffolding. It includes an adjustable base plate (6), an adjustable base screw rod (7), an adjustment nut (3), a sleeve (4), a vertical rod (2), and a lower bowl buckle (1). Install a bushing (4) outside the base screw (7), fix the sweeping rod (5) on the bushing (4) with a steel pipe fastener, install an adjusting nut (3) above the bushing (4), and the bushing (4) Located in the middle of the adjustable base plate (6) and the adjustment nut (3), the construction device has a simple and stable structure and is easy to install and use.

The invention discloses a deformable scooter which comprises an assembly, pedal tubes, pedals, rear wheels, a front wheel and a T handlebar stem. The two pedal tubes are rotatably connected onto the assembly, the pedals are fixed onto the pedal tubes, and universal wheels are connected to the other ends of the pedal tubes; the front wheel is arranged on the lower portion of the assembly, the T handlebar stem is connected to the upper portion of the assembly by a stem, and hand brakes are arranged on the T handlebar stem; a clamp device is arranged at joints of the pedal tubes and the assembly, comprises a clamp plate and a strut switch, is connected onto the assembly by rotary shafts and can rotate in the up-down directions by certain angles; a clamp groove which is matched with the strut switch is formed in the end, which is connected with the assembly, of each pedal tube. The deformable scooter has the advantages that the deformable scooter is simple in structure and convenient to use, is in a novel style, can be flexibly freely switched into a frog-pose scooter and a drifting scooter and has multiple functions, and value and application of the multifunctional scooter can be improved.