5results about How to "Prevent excessive exercise" patented technology

The utility model discloses an anti-skidding pulley with an automatic locking function, and relates to a hoisting pulley device, in particular to an improvement of an anti-skidding, locking and anti-falling pulley structure. In order to achieve the purpose, according to the technical scheme, the sliding wheel comprises a supporting plate, a sliding wheel body, an intermediate shaft, a swing rod and an anti-skid locking mechanism, the sliding wheel body is installed in the middle of the supporting plate in a hinged mode through the intermediate shaft, and the intermediate shaft is fixedly connected to the middle of the sliding wheel body in an inserted mode and fixedly connected with the sliding wheel body. One end of the swing rod is connected to the middle shaft in a sleeved mode, the other end of the swing rod is connected to the anti-skid locking mechanism in a sleeved mode, the two ends of the anti-skid locking mechanism are clamped in the sliding grooves of the supporting plate respectively, and a baffle is arranged on the lower left side of the supporting plate. A cylindrical hole is formed in the middle of the middle shaft, and a cylindrical sliding block capable of freely sliding in the cylindrical hole is arranged in the cylindrical hole. Passive self-locking is achieved in a mechanical mode, risks caused by human errors are reduced, the device is particularly suitable for the scene without an external power source, and when a heavy object tends to fall due to accidents, the device can be automatically locked through a built-in ratchet and pawl mechanism, and the heavy object is prevented from falling.

The present application provides an air control valve for a fuel cell vehicle, comprising: a valve housing formed with an air flow path; a valve member configured to selectively open or close the air flow path; and a drive unit configured to linearly operate the valve member such that the valve member linearly moves from a first position closing the air flow path to a second position opening the air flow path, whereby beneficial effects of improved sealing performance and improved stability and reliability can be obtained.

This utility model discloses an anti-collision device for an oil drilling rig winch, including a first stepper motor. A first transmission seat is driven by a reducer connected to the first stepper motor. The reducer is connected to a docking shaft, controlling its rotation. A second geared disc is fixedly connected to the docking shaft and rotates on a bushing seat via a shaft. A first geared disc is meshed with the rear end of the second geared disc. A rotating rod is fixedly connected to the front end of the first geared disc, communicating with the bushing seat. A lead screw is fixedly connected to the front end of the rotating rod. The lead screw rotates within a first lead screw seat, and its rotation drives a first slider to slide on the first lead screw seat. The first slider, located inside the first lead screw seat, has a block adapted to the lead screw, controlling its sliding adjustment within the first lead screw seat. A second stepper motor also controls the movement of the second slider on the second lead screw seat via a second transmission seat. This structural design enables the reset and adjustment of the over-circuit valve.

The utility model relates to aluminium alloy quality inspection technical field, propose a kind of super-large diameter aluminium alloy pipe material fusion joint flaring inspection device, by main body structure, fixed ring, flaring mechanism, mounting mechanism, planetary gear device, transmission and motor composition. Main body structure with workbench, fixed ring is located on its upper surface, is equipped with first expanding tool through-hole. Flaring mechanism contains multiple expanding tools, passes through first expanding tool through-hole and is slidably connected with fixed ring, and expanding tool side has first gear portion, and end is equipped with flaring head. Mounting mechanism is connected in the inside of fixed ring, and the planet gear of planetary gear device is connected with mounting mechanism and is engaged with first gear portion. The transmission disc of transmission is below mounting mechanism, and transmission gear is located with planet gear engagement in the radial inside of fixed ring. Motor is placed in the inside of main body structure, and motor shaft upper end is connected with transmission disc center. The device is high in inspection accuracy, widely applicable and stable in structure, effectively improves the efficiency and accuracy of aluminium alloy pipe material fusion joint quality inspection.

The application relates to the technical field of cup stamping machines, and provides a cup stamping machine which comprises a cup stamping pad, a driving mechanism, a transmission support and a rotating mechanism, the transmission support is connected between the output end of the driving mechanism and the cup stamping pad, the driving mechanism drives the transmission support to drive the cup stamping pad to cover or release a cup, the cup stamping pad is arranged around the outer circumferential side of the rotating mechanism, and the rotating mechanism drives the cup to rotate and position; the driving mechanism and the rotating mechanism alternately control the covering and releasing actions of the cup stamping pad and the rotating action of the cup. Based on the cup stamping machine, cup stamping can be facilitated, the stamping precision can be improved, and the use safety can be improved.