7results about How to "Turn on security" patented technology

The invention provides a vehicle redundant steer-by-wire and auxiliary driving integrated system and a control method thereof. The vehicle redundant steer-by-wire and auxiliary driving integrated system comprises a steering mechanism, a driving mechanism, a steer-by-wire motor, an auxiliary motor, a first electromagnetic clutch, a second electromagnetic clutch, an energy storage mechanism, a VCU, a detection mechanism and a steering shaft. The VCU is connected with the steer-by-wire motor, the auxiliary motor, the driving motor, the first electromagnetic clutch, the second electromagnetic clutch and the detection mechanism, monitors the running state of the steer-by-wire motor and the driving torque requirement Tr in real time, and controls connection or disconnection of the first electromagnetic clutch and the second electromagnetic clutch to achieve switching of working modes. The drive-by-wire steering system and the drive-by-wire steering system are integrated, the coupling mode switching of the auxiliary motor and the electromagnetic clutch is utilized, the safety problem of a traditional drive-by-wire steering system when the drive-by-wire steering motor breaks down is solved, safer and more efficient vehicle steering and driving can be achieved, and meanwhile the energy utilization efficiency of the vehicle under different working conditions is improved.

The utility model relates to metallurgical waste heat boiler technical field and disclose a kind of high-temperature ash slag removal and temporary storage device suitable for metallurgical waste heat boiler, it include: ash chute, the ash chute includes hopper body, several access doors and several spring supports, the access door is set in hopper body side wall;Floor ash bin, including ash bin body, steel flue interface and sealing door, the steel flue interface is set at the top of sealing door, the hopper body is connected with ash bin body by just flue interface, the sealing door is set in the side wall of ash bin body;Control assembly, it is jointly arranged in the inside of ash chute and floor ash bin.This scheme uses ash chute to collect high-temperature ash slag, enters floor ash bin by high-power electric hoist driving double flap valve control ash slag, realizes closed discharge, is linked and is controlled by flap valve and sealing door, effectively isolates high-temperature area before dust removal, guarantees operator and equipment safety, improves operating stability and environmental protection.

The invention discloses a tractor double-pump merging and diverting load sensing hydraulic system, comprising a first variable pump, a first single-piston cylinder, a first variable control valve, a second variable pump, a second single-piston cylinder, a second variable control valve, a first throttle valve, a relief valve, a two-position three-way hydraulic control valve, a hydraulic control three-way valve, a second throttle valve, a third throttle valve and a shuttle valve. The output oil pressure of the first variable pump is P1, and the output end EF of the first variable pump and the output end EF of the second variable pump are respectively connected to the input end PO of a lifting system. The tractor double-pump merging and diverting load sensing hydraulic system adopts a load feedback double-variable pump for oil supply, and the hydraulic control three-way valve controls the liquid flow direction of the second variable pump, so as to realize the double-pump merging and diverting operation and steering priority functions, so that the agricultural machinery does not lose direction during operation to ensure safety, and at the same time realizes the double-pump control steering and lifting hydraulic output functions, thereby improving work efficiency and being more economical and efficient.

The utility model relates to a medical glass medicine bottle opener which comprises a left arc-shaped handle, a right arc-shaped handle and a hinge shaft, the left arc-shaped handle and the right arc-shaped handle are hinged through the hinge shaft, the bottom of the left arc-shaped handle and the bottom of the right arc-shaped handle are provided with rings with clasping handles, and the upper end of the left arc-shaped handle is branched into two tops. Grinding wheels are fixed to the two tops of the left arc-shaped handle and the top of the right arc-shaped handle through screws, and the three grinding wheels form three supporting points arranged in a triangular mode on the same horizontal plane. The three grinding wheels are driven to tightly press the small opening end of the glass bottle through the rings of the buckles at the bottoms of the left arc-shaped handle and the right arc-shaped handle, and the three grinding wheels are driven to cut the neck of the glass bottle by rotating the left arc-shaped handle and the right arc-shaped handle. The glass medicine bottle opener is high in safety, convenient for medical staff and patients to use, and capable of effectively opening a glass medicine bottle, especially a small glass medicine bottle.

The present invention discloses an anti-theft device and an oilfield wellhead handwheel valve, the anti-theft device comprises: a first slip; a second slip connected to the first slip; a lock tongue arranged inside the second slip; a magnetic lock arranged inside the second slip, the driving end of the magnetic lock connected to the lock tongue and suitable for driving the lock tongue to slide; in a locked state, the magnetic lock drives the lock tongue to insert into the valve copper sleeve and approach the valve lead screw to lock with the valve lead screw; in an unlocked state, the magnetic lock drives the lock tongue away from the valve lead screw. The present invention ingeniously uses the magnetic lock to control the lock tongue to insert into the valve copper sleeve and lock with the valve lead screw, so as to play an anti-theft role for the valve. The strong magnetic effect of the magnetic lock is used to ensure that the lock tongue is not easy to unlock when locked with the valve lead screw. The magnetic lock requires a special unlocking tool to open and close, and cannot be imitated or destroyed, thereby enhancing the safety of the oilfield wellhead handwheel valve.

The invention belongs to the technical field of agricultural instruments and provides a tractor steering method and a tractor. The tractor steering method comprises the steps that the specification type of a working accessory dragged by an accessory hanging mechanism in the tractor is obtained; controlling the accessory hanging mechanism to be kept in a locking state matched with the specification type of the working accessory; and controlling the tractor to execute steering operation. Before steering of the tractor, the locking state of the accessory hanging mechanism is kept to be matched with the dragged working accessory, and therefore it is guaranteed that the tractor can steer stably and safely.

The utility model belongs to the technical field of curing kiln, specifically relates to an automatic wallboard curing kiln, including kiln body, the one end symmetry fixedly connected with guide piece of kiln body, the inside swing spigot of guide piece has kiln door, the one end top fixedly connected with support plate of kiln body, the top rotationally connected with driven rod of kiln door, the other end rotationally connected with drive rod of driven rod, the longitudinal section of drive rod is arranged as L shape, and one end of drive rod is rotationally connected in the side of support plate, the side fixedly connected with horizontal plate of support plate, the top fixedly connected with motor of horizontal plate, and the output of motor is wound with steel wire rope. The driven rod and the drive rod that the utility model sets up can reduce the tension needed when the kiln door opens, and after the kiln door opens, the position of the locking rod is locked through the locking assembly, so that the steel wire rope is not subjected to tension after the kiln door opens, which not only prolongs the service life of the steel wire rope, but also makes the opening process of the kiln door safer.