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

The invention discloses an intelligent safety lifting device, and belongs to the technical field of lifting devices. The intelligent safety lifting device comprises a carrier, a power component, a lifting component, an extension guide rail and an electric control component, the power component and the lifting component are fixed on the carrier, the lifting component is matched with the extension guide rail, the electric control component is electrically connected with the power component, the power component is linked with the lifting component and drives the lifting component to vertically move along the extension guide rail, and the lifting component is in threaded fit with the extension guide rail. The intelligent safety lifting device is high in safety and wide in application range and has the advantages of crisis removal, escape function and the like.

The invention discloses a lifting hook of a steel plate. The lifting hook of the steel plate comprises a hook, a rotary fixture block and a pin shaft, wherein the rotary fixture block is rotationally connected with one end of the hook; sawteeth are arranged at the inner side of the other end of the hook; a fixed lifting hole is arranged at the top end of the rotary fixture block; the tail end of the rotary fixture block forms an arc surface; and sawteeth are arranged on the arc surface, and the sawteeth arranged on the hook are different from the sawteeth arranged on the rotary fixture block in shape. According to the lifting hook of the steel plate, the steel plate is firmly fixed when being clamped, and a lifting tool does not easily generate the phenomenon that the steel plate inclines or falls down in a lifting process without secondary clamping, so the lifting security is improved when the operation efficiency is increased.

The invention relates to a safe lifting appliance and belongs to the technical field of lifting equipment, comprising a mounting rack, a carrier, a power assembly, a lifting assembly and an electric control assembly, wherein the power assembly and the lifting assembly achieve isodirectional linkage with the carrier; the electric 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 climbing part and a lower driven climbing part which are connected into a whole; the back surfaces of the driving part, the upper driven climbing part and the lower driven climbing part are all hinged with a limiting rolling part; climbing chain wheels are arranged on both the upper driven climbing part and the lower driven climbing part; the driving part is located between the upper driven climbing part and the lower driven climbing part and drives the climbing chain wheels on the upper driven climbing part and the lower driven climbing part to rotate; the electric control assembly comprises a program control panel and a switch handle; and the switch is used for controlling the operation of the power assembly. The safe lifting appliance has the advantages of being high in safety and wide in application scope and having functions of solving crises and escaping.

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 relates to a double-column lift with a holding and locking type tray. The double-column lift comprises two vertical columns. Lead screws are arranged in the vertical columns. Sleeves are arranged on the lead screws in a matched mode. Bearing arms are fixed to the inner side faces of the sleeves. Lifting arms are hinged to the two ends of each bearing arm respectively. The other end of each lifting arm is communicated with a rotary shaft. A C-shaped frame with an upward opening is fixed to the upper end of each rotary shaft. S-shaped plates are hinged to the upper portions of the two upwards-tilting sides of each C-shaped frame respectively, and the upper portions are hinged to the middles of the S-shaped plates. The portions, located on the inner sides of the C-shaped frames, of the S-shaped plates are bent downwards, and the portions, located on the outer sides of the C-shaped frames, of the S-shaped plates are bent upwards. The C-shaped frames adapting to the shapes of longerons on the sides of an automobile chassis are adopted as supporting structures, the surrounding degree to an automobile is increased, the situation that the automobile slides laterally on lifting arms can be effectively avoided, lifting safety is greatly improved, the automobile chassis is further protected, and the supporting stability is improved.

The invention discloses a steel plate lifting appliance. The steel plate lifting appliance comprises a balance beam, at least one group of upper lifting lugs symmetrically arranged on the top surface of the balance beam relative to the middle of the balance beam, at least two groups of lower lifting lugs symmetrically arranged on the bottom surface of the balance beam relative to the middle of the balance beam, a sling connected with the upper lifting lugs as well as electromagnet discs connected onto the lower lifting lugs. According to the steel plate lifting appliance, the lower lifting lugs are symmetrically arranged on the balance beam, the electromagnet discs are arranged on the lower lifting lugs for fixing steel plates, so that the steel plates are absorbed through symmetric magnetic force in a lifting transportation process and are fixedly more reliably, further, the steel plates bear the symmetric magnetic force, the balance performance in the lifting transportation process is better, and the lifting transportation safety is higher; multiple groups of lower lifting lugs are arranged on the balance beam, accordingly, the suspending positions of the electromagnet discs can be changed according to the lengths of the lifted steel plates, the steel plates with different lengths can be lifted, and the universality is better.

The invention relates to an installation construction method of a prefabricated steel structure component of a prefabricated building. The installation construction method comprises the following steps: S1, installing a box column connecting part; S2, placing the steel structural component: placing the steel structural component subjected to surface treatment on a bearing plate mounted at the topof a hoisting vertical plate, and locking the steel structural component through a locking mechanism mounted on a bearing plate; S3, making hoisting preparation of the steel structural component; S4,hoisting the steel structural component; S5, installing the steel structural component; S6, welding the steel structural component. The locking mechanism comprises a locking vertical plate, a lockingbolt, a locking clamping plate, a guide sliding rod, a sliding rod spring, a guide support and a guide roller. The problems that when an H-shaped steel structural component is installed on an existingbox column, the steel structural component can only be singly hoisted and installed, the installation efficiency is low, the steel structural component is unstable during hoisting, and certain potential safety hazards exist can be solved.

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.

The invention provides a lifting device in a track structure. The lifting device comprises an installation rack, wherein a carrier, a power assembly, a lifting assembly and an electronic control assembly are installed on the installation rack; 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 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 device has the advantages that the lifting device 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 discloses an anti-sliding transformer supporting device. Two connecting sets which are symmetrically arranged front and back are arranged between an upper supporting seat and a lower supporting seat, each connecting set comprises a pair of cuboid-shaped connecting plates which are symmetrically arranged left and right, a plurality of right triangle-shaped anti-sliding blocks which are continuously distributed up and down are correspondingly formed on the close end surfaces of the pair of connecting plates of the same connecting set, the inclined surface of the anti-sliding blockon the left side inclines upwards from left to right, the inclined surface of the anti-sliding block on the right side inclines upwards from right to left, anti-sliding inserting plates are arranged in vertical guide grooves in a left-right elastic moving mode, the left end of the anti-sliding inserting plate on the left side is formed into an inclined surface inclining upwards from left to right,the right end of the anti-sliding inserting plate on the right side is formed into an inclined surface inclining upwards from right to left, and the inclination angle of an inclined plane of the anti-sliding inserting plate is the same as that of the inclined plane of the anti-sliding block on the corresponding side.

The invention discloses an intelligent safety lifting device, and belongs to the technical field of lifting devices. The intelligent safety lifting device comprises a carrier, a power component, a lifting component, an extension guide rail and an electric control component, the power component and the lifting component are fixed on the carrier, the lifting component is matched with the extension guide rail, the electric control component is electrically connected with the power component, the power component is linked with the lifting component and drives the lifting component to vertically move along the extension guide rail, and the lifting component is in threaded fit with the extension guide rail. The intelligent safety lifting device is high in safety and wide in application range and has the advantages of crisis removal, escape function and the like.

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.

The invention discloses a crane capable of stably assembling and disassembling a precision mold. The crane comprises a machine body. The bottom surface of the machine body is fixedly provided with tworight-and-left symmetrical supporting columns. The bottom surfaces of the supporting columns are provided with two front-and-rear symmetrical moving wheels in a rotating mode. The interior of the machine body is provided with a lifting chamber with a downward opening. A lifting shaft is arranged between the left and right walls of the lifting chamber in a rotating mode. The periphery of the lifting shaft is fixedly provided with a lifting rolling cylinder. The periphery of the lifting rolling cylinder is fixedly provided with lifting spiny blocks and a lifting chain. By adopting a buckled connection between the lifting chain and the lifting spiny blocks, the crane capable of stably assembling and disassembling the precision mold can avoid the problem that a hanging rope slides when lifting due to the smooth surface of the lifting rolling cylinder in the lifting process of the lifting chain. At the same time, the crane can avoid the problem of crane failure and mold drop caused by a heavy mold in the lifting process by adopting ratchet restriction and clamping emergency braking, which greatly improves the lifting safety effect.