9results about How to "Prevent de-grooving" patented technology

The utility model relates to a hanging device for non-standard basket pulley head of shallow silo inclined roof, which comprises a parapet slope, a shallow silo trestle column is vertically installed at the lower right end of the parapet slope, and a basket working steel wire rope is wound around the outer surface of the shallow silo trestle column, a runway hole is formed in the connecting bottom plate, and the inside of the runway hole is fixed on the parapet slope through an M12 expansion nut, the pulley body is fixedly connected to the inner wall of the fixed side plate through a kingpin, and the U-shaped rope clamp groove penetrates the U-shaped rope clamp plate. The hanging device for non-standard basket pulley head of shallow silo inclined roof meets the safety requirements in the operation process of the basket, does not need to install a front support, is easy to install for an operator, reduces the work of installing a counterweight block for a standard basket, is convenient to disassemble in the later period, can be taken down after the M12 expansion nut is loosened, can be recycled, only needs to replace the expansion bolt, and has low cost.

The anti-winding elevator comprises a base, moving rails are connected to the front side and the rear side of the top of the base, two moving sliding blocks are slidably connected to the moving rails, a left side plate is connected between the tops of the two moving sliding blocks on the left side, and a right side plate is connected between the tops of the two moving sliding blocks on the right side; a roller is arranged between the left side plate and the right side plate, the right end of the right side plate is connected with a reduction gearbox, a gear motor is installed at the driving end of the reduction gearbox, the left side of the top of the base is connected with a lead screw fixing seat, the upper end of the lead screw fixing seat is connected with a reciprocating lead screw, and the outer wall of the reciprocating lead screw is in threaded connection with a trapezoidal nut. A mounted bearing is mounted between the trapezoidal nut and the left side plate; the structure design is reasonable, winding and overlapping of the steel wire rope at the same position of the rope groove are effectively avoided, and the stability of lifting work is guaranteed.

The utility model relates to hoisting machinery technical field, and disclose a kind of hoisting pulley device of anti-drop slot, solve the problem proposed in background art, it includes pulley body, support and steel wire rope, further include: anti-drop slot mechanism, the anti-drop slot mechanism includes rotatable baffle being symmetrically arranged in the both sides of pulley body, rotatable baffle is hinged with support by pivot;Self-locking mechanism, the self-locking mechanism includes ratchet strip being arranged on at least one side baffle and elastic pawl being arranged on support, ratchet strip and elastic pawl engage to constitute one-way locking structure;Reset mechanism, the reset mechanism includes torsion spring being sleeved on pivot, the utility model, with can effectively block steel wire rope, even in the case where steel wire rope swings or deflection, also can prevent its drop slot, reduce manual intervention, improve the degree of automation of device, also avoid the effect of hoisting failure or equipment damage due to baffle not reset.

The invention discloses a strength detection tool for an elevator car roof protective fence. The strength detection tool comprises a stator screw assembly, a rotor screw assembly and a force sensor assembly, the first end of the force sensor assembly is rotatably and axially connected with the rotor screw assembly, and the second end of the force sensor assembly is used for applying horizontal thrust to the elevator car guardrail; the first end of the stator screw assembly is horizontally and axially connected with the rotor screw assembly, and the second end of the stator screw assembly is used for supporting a support; the axial length of the stator screw assembly and the axial length of the rotor screw assembly can be adjusted. According to the universal assembly, the axial lengths of the stator screw assembly and the rotor screw assembly can be adjusted, and the universal assembly can adapt to guardrails with different opening distances, so that the effect of detecting the strength of elevator car top guardrails with different sizes through one universal assembly is achieved.

The utility model discloses a kind of rope winding and fixed auxiliary devices for hydrological emergency flow measurement, to improve the safety and efficiency of bridge hydrological flow measurement operation.The device mainly includes fixed unit, guide unit, winding unit and rope clamping unit.Fixed unit is installed on bridge railing by the fixed support of horizontal locking bolt and bottom clamping groove, and can be quickly and firmly installed on bridge railing.Guide unit includes guide rod with guide slot and front end roller, to ensure smooth guidance of rope and reduce wear.Rope clamping unit uses hydraulic drive clamping block, to realize reliable instantaneous locking of rope.Winding unit is driven by motor winding wheel, to realize mechanization of rope winding and unwinding.The utility model has high integration degree, and is easy to operate, effectively solves the problems of great safety hazard, high labor intensity and unreliable rope fixation in traditional manual operation, and is especially suitable for hydrological emergency monitoring and other field operation scenarios.

This utility model discloses a balancing lifting device for logistics transportation, belonging to the field of logistics transportation technology. The balancing lifting device includes a lifting frame, with fixed seats installed at both the front and rear ends of the lifting frame. Double-acting hydraulic cylinders are installed on both sides of the lower end of the lifting frame. A connecting seat is installed at the lower end of the sliding seat, and a weighing sensor is installed inside the connecting seat. This utility model solves the problem that existing lifting devices for logistics transportation tend to tilt at the four corners when transporting large packages, leading to unstable cargo position and affecting handling efficiency. This utility model adjusts the position of the lower sliding seat using double-acting hydraulic cylinders. The core function of the double-acting hydraulic cylinders is to change the effective length of the steel wire ropes on both sides, redistributing the tension of the steel wire ropes on both sides, so that the resultant force line is aligned with the center of gravity again, thereby achieving balance. The structure is simple, easy to adjust, effectively avoids tilting, and improves positional stability.

The utility model discloses an automobile door panel pulley shaft pin riveting installation structure which comprises a door panel body, a boss, a pulley piece and a shaft pin mechanism, the boss is provided with a shaft hole, the shaft pin mechanism is fixed to the door panel body through a riveting head, and the pulley piece is rotationally connected with the shaft pin mechanism through a rolling bearing. And an inner ring bulge and an outer ring bulge are arranged to reduce friction and limit displacement. According to the structure, rapid installation is achieved through riveting, the rolling bearing and the optimized pulley design are matched, connection stability and pulley rotation smoothness are remarkably improved, abrasion is reduced, the service life is prolonged, and the structure is suitable for efficient installation and reliable operation of the automobile window lifter.

The utility model relates to the technical field of electronic connectors for signal transmission, and discloses an electronic connector for signal transmission, which comprises an electronic connector assembly, the electronic connector assembly comprises a connector main body and a limiting seat, and one side of the connector main body is provided with a positioning assembly. Normal functions of the electronic connector are guaranteed by arranging the electronic connector assembly, the connecting plug is inserted into the connecting slot, connection is convenient, the positioning assembly is arranged, the limiting pull head is pulled to drive the limiting insertion rod to be separated from the positioning slot, at the moment, the limiting insertion rod drives the movable plate to compress the high-damping spring, and the high-damping spring is fixed. When the connecting plug is inserted into the connecting slot, the positioning block can be inserted into the positioning slot, the limiting pull head is loosened, and the high-damping spring rebounds to drive the limiting insertion rod to be inserted into the limiting slot on one side of the positioning block, so that the positioning block is stable, the limiting seat is stable, the connecting plug is prevented from being separated from the slot, and the stability is ensured.

The utility model discloses a cable bridge laying tractor which comprises a movable base, a supporting main frame is welded and fixed on the surface of the upper end of the movable base, fixing shafts are installed on the surfaces of the two sides of the supporting main frame, cable traction machine barrels are installed on the fixing shafts, and limiting traction frames are installed at the wire outlet ends of the cable traction machine barrels. And the limiting traction frame is used for performing traction discharging on the cable wound on the surface of the cable traction machine barrel. According to the utility model, the convenient cart structure is arranged, and the four independent cable traction machine barrel devices are mounted on the cart, so that an operator can further drive the cable traction machine barrels to carry out winding traction operation by pushing the cart to a specified position and then controlling the hand wheel structure to rotate, thereby facilitating traction laying of cables; and meanwhile, a limiting traction frame structure convenient to assemble and fix is installed and can be used for conducting traction discharging on the cable wound around the surface of the cable traction machine barrel, and the phenomenon that the cable is disengaged from the groove is prevented.