45results about How to "Improve lifting safety" patented technology

The invention belongs to the technical field of cable hoisting, and particularly relates to a cable hoisting device. The cable hoisting device comprises an inserting rod and a cable reel, wherein one end of the inserting rod is fixedly connected with a hoisting seat with a fixing hole; a hole one is formed in the inserting rod, a rotating shaft is rotationally connected into the hole one, and one end of the rotating shaft is fixedly connected with a gear one; a motor is fixedly connected to the position, corresponding to the gear one, in the hole one, a gear two fixedly connected with an output shaft of the motor is meshed with the gear one, and the gear one is wider than the gear two; a group of tensioning units are uniformly distributed on the inserting rod, and the tensioning units comprise supporting rods, supporting blocks and push-out blocks; a group of inserting holes are uniformly distributed in the circumference of the inserting rod, and the supporting rods penetrate through the inserting holes and are slidably connected with the inserting holes; one ends, located in the hole one, of the supporting rods are fixedly connected with the push-out blocks, and the other ends are fixedly connected with the supporting blocks; arc-shaped grooves are formed in the sides, close to the axis of the hole one, of the push-out blocks, the adjacent arc-shaped grooves form a conical hole, and the rotating shaft penetrates through the conical hole; and a conical head is fixedly connected to the position, corresponding to the conical hole, of the rotating shaft and is in threaded connection with the conical hole.

The invention discLoses a Lifting protection device of an anti-expLosion dumper. The Lifting protection device structuraLLy comprises a wheeL, a direction controL rod, a vehicLe seat, a Lifting stabiLization protection device, an eLectromagnetism hydrauLic rod, a frame and a carriage, wherein the wheeL is arranged at the Lower portion of the direction controL rod and fixedLy connected with the direction controL rod, the direction controL rod is instaLLed at the right-ahead portion of the vehicLe seat, the vehicLe seat is arranged at the upper portion of the frame and fixedLy connected to forman integrated structure, the Lifting stabiLization protection device is instaLLed between the frame and the carriage and stabLy connected with the hydrauLic rod. According to the Lifting protection device, when the eLectromagnetism hydrauLic rod Lifts, the eLectromagnetism hydrauLic rod and the Lifting stabiLization protection device are powered on and started, through transmission of internaL structures, a first warning mechanism and a second warning mechanism are sounded, the effect of reminding a driver is achieved, Lifting is determined, or the horizontaL state of the carriage has not yetrecovered, and the Lifting structure is in Lifting connection with the inner side of the hydrauLic rod; Lifting is more stabLe, the service Life is proLonged, and using is convenient.

The invention relates to a method for installation and construction of prefabricated steel structural components in prefabricated buildings, comprising the following steps: S1, installation of box-shaped column connectors; The support plate installed on the top of the plate, and lock the steel structure components through the locking mechanism installed on the support plate; S3, steel structure component lifting preparation; S4, steel structure component lifting; S5, steel structure component installation; S6. Welding of steel structural components; the locking mechanism includes a locking vertical plate, a locking bolt, a locking clamp, a guide slide bar, a slide bar spring, a guide support and guide rollers. The present invention can solve the problems existing in the installation of I-shaped steel structural members on box-shaped columns: the steel structural member can only be hoisted and installed individually, the installation efficiency is low, and the steel structural member is unstable during hoisting, and there are Certain safety hazards and other issues.

The invention provides a safety lifting device with a track structure. The safety lifting device comprises a mounting rack and a guide rail, wherein a carrier, a power component, a lifting component and an electric control component are arranged on the mounting rack; the power component and the lifting component are linked with the carrier in the same direction; the electric control component is electrically connected with the power component; the power component drives the lifting component to move up and down; the electric control component comprises a program control board and a switch handle; and the switch handle controls the operation of the power component. The safety lifting device with the track structure has the advantages of being high in safety and wide in application range, having crisis resolving and escape functions and the like, and belongs to the technical field of lifting equipment.

The invention discloses a single-hoisting-ring hoisting prevention device and belongs to the technical field of oil drilling equipment. The single-hoisting-ring hoisting prevention device comprises stopping blocks arranged in lower slots of hoisting lugs, and is characterized in that the stopping blocks are fixed in the lower slots through first rotating shafts and provided with sensing components for monitoring the positions of hoisting rings, and trigger blocks are arranged on the inner walls of the lower slots; and the device further comprises a single-hoisting prevention component which comprises a controller, and the controller is connected with the sensing components in a radio mode and used for receiving signals sent by the sensing components to control starting and stopping of traveling blocks. The device can accurately judge whether hoisting rings on the two sides of a lift sub enter hoisting lug holes or not and then send commands for hoisting or non-hoisting, single-hoisting-ring hoisting can be effectively prevented, and hoisting safety is improved.

The invention provides a climbing robot based on a guide rail and belongs to the technical field of lifting equipment. The robot comprises an installing frame, a carrier, a power assembly, a lifting assembly and an electronic control assembly. The power assembly and the lifting assembly are linked with the carrier in the same direction, the electronic control assembly is electrically connected with the power assembly, and the power assembly drives the lifting assembly to move up and down. The lifting assembly comprises a driving element, an upper driven climbing element and a lower driven climbing element which are connected into a whole. Lifting rolling elements are hinged to the back side of the driving element, the back side of the upper driven climbing element and the back side of the lower driven climbing element respectively. The upper driven climbing element and the lower driven climbing element are both provided with a climbing chain wheel. The driving element is located between the upper driven climbing element and the lower driven climbing element and drives the climbing chain wheel of the upper driven climbing element and the climbing chain wheel of the lower driven climbing element to rotate. The electronic control assembly comprises a program control plate and a switch handle. The switch handle controls the power assembly. The climbing robot has the advantages of being high in operation safety, wide in application range, capable of achieving the crisis resolving and escape function and the like.

The invention provides lifting equipment with the falling preventing function. The lifting equipment comprises an installation rack, a carrier, a power assembly, a lifting assembly and an electronic control assembly, wherein the power assembly and the lifting assembly achieve linkage in the same direction with the carrier; the electronic control assembly is electrically connected with the power assembly; the power assembly drives the lifting assembly to move up and down; the lifting assembly comprises a driving part, an upper driven part and a lower driven climbing part, which are connected into one; limiting rolling parts are hinged on the backs of the driving part, the upper driven part and the lower driven climbing part; climbing chain wheels are arranged on the upper driven part and the lower driven climbing part; the driving part is arranged between the upper driven part and the lower driven climbing part and drives the climbing chain wheels on the upper driven part and the lower driven climbing part to rotate; the electronic control assembly comprises a program control panel and a switch handle; the switch handle is used for controlling the operation of the power assembly. The lifting equipment has the advantages that the lifting equipment has high safety, a wide range of application, the function of resolving the crises and the escape function and belongs to the technical field of lifting equipment.

The invention relates to a gravity balance type hoisting method and a hoisting apparatus, a gravity balance type hydraulic hoist, for hoisting heavy articles in different complicated terrains in field. The gravity balance type hydraulic hoist is composed by employing a general hydraulic hoist as the machine body, and mounting a gravity balance type hydraulic hoist and a moving counterweight on the machine body. The gravity balance type hydraulic hoist is composed of collapsible hoisting arms, hoisting arm bases, a master hydraulic winch and a slave hydraulic winch. The collapsible hoisting arms of the gravity balance type hydraulic hoist are mounted on the hoisting arm bases in a lever form, and the gravity balance type hydraulic hoist has multiple hoisting forms such as collapsible arm hoisting, balance hoisting, gantry hoisting, and tower hoisting. When hoisting a heavy article, the collapsible hoisting arms employ the balance moment balance portions of the master and slave balance hoisting arms to hoist the gravity moment of the heavy article according to the lever balance principle, thereby lowering the overturning moment of the gravity balance type hydraulic hoist body exerted by the gravity moment of the hoisted heavy article. Therefore, the invention is very suitable for use in special construction fields and special hoisting work of construction engineering of water conservancy, electric power, petrochemical industry and metallurgical industry.