An easily changeable assembly type power winch includes a power source, a deceleration device, an outer casing, a rope wheel, a first support frame and a second support frame. After the power winch and two cross plates are assembled to form a basic assembly, a rope outlet board and an electric control box are assembled with the basic assembly to form the power winch in a horizontal assembly mode or an upright assembly mode, and these two assembly modes can be switched quickly to achieve the effects of reducing the manufacturing cost, improving the convenience of assembling, and broadening the scope of application.

An easily changeable assembly type power winch includes a power source, a deceleration device, an outer casing, a rope wheel, a first support frame and a second support frame. After the power winch and two cross plates are assembled to form a basic assembly, a rope outlet board and an electric control box are assembled with the basic assembly to form the power winch in a horizontal assembly mode or an upright assembly mode, and these two assembly modes can be switched quickly to achieve the effects of reducing the manufacturing cost, improving the convenience of assembling, and broadening the scope of application.

A winch includes a coupling A, a coupling B, a rectangular spring, a gear wheel, a gear rack, a friction ring, and a transmission shaft, etc. By increasing the distance between the adjacent internal teeth of the two-stage planet carrier, it ensures that the three-stage sun gear can be smoothly inserted into the two-stage planet carrier even if the elasticity of spring A is reduced, such that the engagement width between the three-stage sun gear and the two-stage planet carrier can reach the normal requirements. With the design of sliding gear ring and spring C, it can greatly reduce the phenomenon of mis-engagement when the external teeth of the three-stage sun gear enter the internal teeth spacing of the two-stage planet carrier, protect the teeth integrity of the three-stage sun gear and the two-stage planet carrier.

A winch includes a coupling A, a coupling B, a rectangular spring, a gear wheel, a gear rack, a friction ring, and a transmission shaft, etc. By increasing the distance between the adjacent internal teeth of the two-stage planet carrier, it ensures that the three-stage sun gear can be smoothly inserted into the two-stage planet carrier even if the elasticity of spring A is reduced, such that the engagement width between the three-stage sun gear and the two-stage planet carrier can reach the normal requirements. With the design of sliding gear ring and spring C, it can greatly reduce the phenomenon of mis-engagement when the external teeth of the three-stage sun gear enter the internal teeth spacing of the two-stage planet carrier, protect the teeth integrity of the three-stage sun gear and the two-stage planet carrier.

A double-drum linkage winding type hoisting system includes a first hoisting drum and a second hoisting drum. The first hoisting drum and the second hoisting drum are engaged and linked through engagement structures on outer circumferences of the first hoisting drum and the second hoisting drum or are linked through a linkage intermediate member. A first hoisting rope is wound around the first hoisting drum. A second hoisting rope is wound around the second hoisting drum. The first hoisting rope and the second hoisting rope are not connected with each other.

A drone loading/unloading device includes an electric reel selectively movable for releasing/winding a cable adapted to be wound around the electric reel. A driver is operably connected to the electric reel to selectively drive the electric reel to reciprocally move from a locked position and an unlocked position and a buffer is mounted between the driver and the electric reel such that buffering effect is provided to the electric reel when moved from an unlocked position to a locked position.

A drone loading/unloading device includes an electric reel selectively movable for releasing/winding a cable adapted to be wound around the electric reel. A driver is operably connected to the electric reel to selectively drive the electric reel to reciprocally move from a locked position and an unlocked position and a buffer is mounted between the driver and the electric reel such that buffering effect is provided to the electric reel when moved from an unlocked position to a locked position.

A lifting device includes a drive, a speed change gear device arranged above the drive and configured to be rotatable by means of the drive, a transmission device connected to the speed change gear device and a lifting mechanism fixed in the transmission device, and the speed change gear device is fixed to a side wall of the transmission device. Under an action of the drive and a speed change of speed change gear device, a gravity of a weight suspended on the lifting device is converted, so that the weight is lifted under a small force. The lifting device can also be driven via an electric hand tool. In addition, a first transmission device and a second transmission device are provided with a safety device to lock the lifting device when reaching a top, so as to prevent the lifting device from slipping to cause injuries.

A hoist system having a drum primarily self-contained within a batten, for raising and lowering lighting, sound equipment, curtains and the like in a performance environment. The hoist system may be adapted with safety mechanisms including an overload sensor and/or a slack line detector. The system may be provided in the form of a point hoist. The compact system is highly scalable to a variety of spaces and applications, including school and public theaters and concert halls, as well as some homes, private business, etc. Additional features include various cable management systems and trim adjustment mechanisms for use with the hoist system.

An embedded bionic winch for sampling and exploration of a polar sub-glacial lake, including an actuating chamber, a power chamber, a transition chamber, a sensor chamber, a cable arranging chamber and a slip ring chamber, where the actuating chamber, the power chamber, the transition chamber, the sensor chamber, the cable arranging chamber and the slip ring chamber are arranged in sequence, and are coaxially connected; the power chamber provides a power for the winch, and realizes sealing of motors located therein under water with a certain depth; the transition chamber realizes a power transmission between the power chamber and the cable arranging chamber; the sensor chamber is used for mounting of a tension sensor; the cable arranging chamber realizes retraction and release of a cable through the precise cooperation of a drum and a lead screw, and the slip ring chamber contains a slip ring.