899 results about "Lifting equipment" patented technology

The invention relates to the field of flow-state solidified soil, and discloses flow-state solidified soil prepared from construction waste, preparation equipment and a preparation method. The pre-dehydration module is used for controlling the water content of discharged materials to be less than or equal to 14%; the system further comprises a main drying system, an auxiliary material adding device, a water adding device and mixing equipment. The main drying system comprises a high-temperature drying area, a high-temperature buffering area and a heat preservation discharging area which are arranged in the vertical direction, materials treated by the pre-dehydration module are lifted into the high-temperature drying area through lifting equipment, the main drying system comprises at least two sets of material conveying belts, and a plurality of hot air openings are evenly formed in the top of the high-temperature drying area; an inlet of the hot air pipe is communicated with an air cavity heated by a heat source; a recovery channel communicating with the portion, close to the bottom, of the heat preservation discharging area is arranged on one side of the main drying system, and an obliquely-arranged dust baffle is arranged in the recovery channel. According to the invention, the problems of fluctuation of construction waste sources and large change of material moisture content in the prior art are solved.

The present application relates to a kind of offshore spreader and the measuring and controlling system of application thereof, block hoisting method, belong to underwater block hoisting technical field.The offshore spreader includes lifting frame, hook, unhooking device and measuring tower;Wherein, lifting frame is used to connect hoisting equipment;Hook is installed below lifting frame and is hinged with lifting frame, for connecting the lifting hole of prefabricated block;Unhooking device includes unhooking frame, driver and connecting rod, for realizing the automatic hooking and automatic unhooking of hook;Measuring tower is fixedly installed above lifting frame, and measuring tower includes column installed around lifting frame and upper measuring platform on the top of column, for measuring the positioning data of offshore spreader.The offshore spreader and the measuring and controlling system of application thereof, block hoisting method combine measuring tower and unhooking device, can obtain the positioning information of spreader in real time, and then timely adjust the position of spreader and block, ensure the precision of block installation;While underwater automatic unhooking can reduce the risk of manual operation.

The utility model discloses a hoisting mounting rack for an angle iron clamping device. The hoisting mounting rack comprises a hoisting bottom plate, a spring pressing plate assembly, a locking hook assembly, an electric wrench assembly and a hoisting ring, the hoisting bottom plate is a pi-shaped thick plate and is provided with an opening, and the upper surface of the hoisting bottom plate is used for fixedly arranging the spring pressing plate assembly; the two locking hook assemblies are symmetrically located on the two sides of the spring pressing plate assembly. And the electric wrench assembly. And the four lifting rings are respectively arranged at four corners of the lifting bottom plate. The quick-mounting clamping device is clamped by the quick-mounting clamping device, the quick-mounting clamping device is lifted to angle iron of an iron tower where the quick-mounting clamping device needs to be mounted through lifting equipment, then quick mounting is achieved, climbing operation of personnel is not needed in the whole process, mounting is convenient and fast, and safety is high.

The invention relates to the technical field of oil field oil production engineering, in particular to an underground data acquisition unit with flow, pressure and temperature monitoring functions and a method. The method is suitable for underground working condition monitoring of submersible motor type lifting equipment such as submersible screw pumps, submersible plunger pumps and submersible centrifugal pumps. The unit comprises a pressure-resistant shell, wherein a central pipe, an electromagnetic flowmeter, two pressure and temperature sensors and an underground parameter collector are integrated in the pressure-resistant shell; the two sensors are used for measuring the temperature and pressure of liquid flow of the central pipe and the temperature and pressure of an oil casing annulus respectively; the electromagnetic flowmeter measures the flow, and real-time temperature and pressure data are used for compensation to improve the precision. The unit is further provided with a collecting pipe, an upper end, a lower end, a connecting sliding ring, an annulus / oil pipe inner testing channel, a sealing rubber ring and the like. Through the integrated design, synchronous high-precision in-situ monitoring of underground key parameters is achieved, the problem that underground data of multiple instruments are not synchronous is solved, and a reliable data terminal is provided for an intelligent oil field.

The application provides a hook device and relates to the technical field of hoisting equipment.A hook device comprises a boom and a hook body rotatably arranged on the boom, and a counterweight is arranged on the top of the hook body; the hook body is rotatably provided with a shielding assembly for shielding an opening of the hook body; a linkage assembly is arranged between the shielding assembly and the boom, and the linkage assembly is arranged on one side of the hook body.The hook can be opened by the cooperation between the counterweight and the hook body, the automatic unloading of articles can be realized, safety can be ensured, the structure is simple, and the hook device is convenient and practical.

The utility model relates to the technical field of lifting equipment, in particular to convenient lifting equipment based on inductive control, which comprises a base, a guide rail, a lifting platform, a driving assembly, an induction module, a protective cover and the like. The operation state and the external working condition are monitored in real time through the sensing module, lifting parameters are dynamically adjusted in combination with the pressure sensor and the infrared distance meter, and adaptability and response speed are improved; the buffer device reduces impact force and prolongs the service life; the heat dissipation and cooling system improves the stability. Intelligent control can be achieved, the maintenance cost is reduced, the application range is expanded, and the high-efficiency operation requirement under the complex environment is met.

The invention discloses a portal crane for railway loading and unloading and a construction method and relates to the field of hoisting equipment. The portal crane for railway loading and unloading comprises at least two main beams arranged in parallel, a crane carriage, at least two conversion supports, two stand columns and two tire walking mechanisms connected to the bottoms of the two stand columns correspondingly. Tracks extending in the length direction of the main beams are arranged on the main beams. The hoisting trolley is movably arranged on each track; the at least two conversion supports are symmetrically connected to the bottoms of the main beams in a manner of rotating around the vertical axis, and the two ends of the conversion supports are configured to rotate along the vertical plane so as to support the ground or be folded; the two stand columns are connected to the bottoms of the two ends of each main beam in a telescopic mode in the height direction. According to the portal crane for railway loading and unloading and the construction method provided by the invention, the problem that large hoisting equipment cannot enter a station from a road and cannot be self-assembled under the working condition of no external hoisting equipment is solved.

This utility model relates to the field of lifting equipment, and more particularly to a hoist, comprising a rotating base, a vertically mounted lifting frame on the rotating base, a vertically mounted lifting mechanism on the lifting frame, and a vertically sliding rotating frame on the lifting frame. By setting a rotating base that can rotate as a whole and a rotating frame that can rotate independently, this utility model enables the placement frame to perform both vertical lifting and horizontal rotation and pitch angle adjustment, greatly expanding the material placement range and flexibility, and meeting the needs of complex working conditions. The lifting function is achieved through the cooperation of the lifting mechanism with the slide rails and sliders on the lifting frame. Chain drive ensures the synchronization of power transmission, ball screw pairs ensure transmission accuracy and stability, and the guide rail and slider mechanism effectively limits the swaying of moving parts, ensuring high precision and high stability of the overall lifting process.

1. The name of the design product: water lifting equipment (T6 megawatt water energy cycle power station). 2. The use of the design product: water hammer pump for water lifting. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view.

The utility model relates to the technical field of die equipment, in particular to a packing pipe forming die and a packing pipe, the packing pipe forming die comprises a fixed die, a movable die and a bottom die, the fixed die and the movable die are respectively provided with a forming cavity, the forming cavities are respectively provided with a reinforcing rib cavity, and the reinforcing rib cavities are arranged on the bottom die. The fixed mold is provided with an injection molding runner for injection molding into the fixed mold, and the bottom mold is connected with external lifting equipment and is used for being connected with the bottom of the fixed mold and the bottom of the movable mold, so that the bottom of the forming cavity is blocked. The movable mold is driven by external driving equipment to be assembled with the fixed mold, the bottom mold is in butt joint with the bottom of the fixed mold and the bottom of the movable mold under the action of external lifting equipment, so that a forming cavity of the fixed mold and a forming cavity of the movable mold are closed to form a closed injection molding cavity, and injection molding is conducted in the forming cavity through an injection molding runner on the fixed mold. Therefore, the packaging pipe with a tubular structure and a reinforcing rib cavity shape is formed, the packaging pipe is provided with reinforcing ribs, and the structural strength of the packaging pipe is improved.

The utility model relates to the technical field of drainage ditch overturning, and provides a thin seam drainage ditch overturning device which comprises a supporting plate, a connecting plate is fixedly connected to the side face of the supporting plate, a handle is fixedly connected to the side face of the connecting plate, a hanging ring is connected to the side face of the supporting plate in a sliding mode, and the hanging ring is fixedly connected to the side face of the supporting plate. The end, away from the supporting plate, of the connecting plate is fixedly connected with a base, and a turnover device is arranged on the side face of the connecting plate. According to the utility model, when the turnover device for the slit drainage ditch is used, a user firstly holds the handle to move the turnover device to the position near the slit drainage ditch to be turned over; according to the technical scheme, the lifting ring is connected with appropriate lifting equipment, in the overturning process, the water tank guide pulley rolls along the edge of the slit drainage ditch, it is ensured that the overturning device is stably and accurately overturned along the preset track, and through the technical scheme, the problem that in the related technology, the slit drainage ditch cannot be stably overturned is solved.

The utility model provides a lifting device and a lifting system. The lifting device comprises a frame; the at least one pair of rails comprises two rails, the rails extend in the vertical direction, and racks are arranged in the extending direction of the rails; the lift car is arranged in the frame in a liftable manner and is configured to bear the tray; the actuating assembly is arranged on the lift car, and the actuating assembly comprises first actuating parts, second actuating parts and third actuating parts, and the number of the first actuating parts corresponds to the number of the rails; and the driving gear is arranged at the output end of the first actuating part and is configured to be meshed with the rack, so that the lift car ascends or descends.

The utility model relates to a handle easy to operate, which belongs to the technical field of hoisting equipment and is characterized in that two cylindrical handles are mounted on a connecting rod, two rocking sensors are mounted at corresponding positions, rocking arms of the two rocking sensors are respectively inserted into rocking arm holes of the two cylindrical handles, and the two cylindrical handles can slide up and down and rotate circumferentially around the connecting rod. And the rocking sensor is arranged on the cylindrical handle and can return to the initial position after sliding up and down and rotating in the circumferential direction, the rocking sensor sends the detected action signal to the controller after detecting the action signal of the cylindrical handle, and the controller generates a control command according to the received action signal and sends the control command in a wired or wireless mode. And controlling the corresponding execution mechanism to execute the corresponding control command. A worker can operate the handle provided by the utility model with one hand, so that not only can the lifting action of the electric hoist be completed, but also the actions such as movement of the cart and the trolley can be controlled, the operation is simple and convenient, and time and labor are saved.

The utility model belongs to the technical field of building drainage systems, and particularly relates to an anti-overflow connector for a breather pipe of sewage lifting equipment. The ventilation vertical pipe is communicated with the drainage vertical pipe, and the ventilation vertical pipe and the drainage vertical pipe are arranged in parallel; the ventilation branch pipe is arranged on one side, far away from the drainage vertical pipe, of the ventilation vertical pipe, and the ventilation branch pipe is communicated with the ventilation vertical pipe; and the water blocking plate is rotationally installed at a pipe opening, communicated with the ventilation vertical pipe, of the ventilation branch pipe, and when water flow flows in the ventilation vertical pipe, the water blocking plate shields the pipe opening of the ventilation branch pipe. The device has the advantages that the ventilation branch pipe is arranged at the end, away from the drainage stand pipe, of the ventilation stand pipe, and the water baffle is arranged, so that water is effectively prevented from leaking to the ventilation branch pipe.

The utility model relates to the technical field of logistics lifting equipment, in particular to a limiting structure for logistics lifting equipment, which comprises a supporting vertical frame, a discharging table and a top box, the discharging table is fixedly mounted on one side above the supporting vertical frame, and a material goods conveying structure is arranged on one side of the lower end of the supporting vertical frame. A goods conveying transverse limiting structure is arranged at the bottom end of the interior of the supporting vertical frame, and a goods lifting vertical limiting structure is arranged on the upper portion of the inner wall of the supporting vertical frame. According to the limiting structure for the logistics lifting equipment, the electromagnet is made of the magnet capable of generating strong magnetic attraction force after being electrified, attraction force can be generated after the electromagnet is electrified, the iron tray sliding to the position above the lifting frame can be attracted and limited after making contact with the position above the electromagnet, the iron tray cannot continue to move forwards, and limiting of transverse conveying of logistics goods is completed; in this way, the position of goods can be accurate in the logistics lifting process, manual adjustment is not needed, safety and reliability are achieved, and the using effect of the limiting structure for the logistics lifting equipment is improved.

The application discloses an auxiliary device for pre-buried lattice columns and a construction method, which comprises a reinforcing cage support arranged at the top end of a reinforcing cage, a lower support arranged at the lower side of the lattice column, an upper support arranged at the upper side of the lattice column, support vertical rods arranged around the pre-buried opening, and a lifting appliance fixed at the top end of the lattice column, wherein the support vertical rods are arranged in a vertical state and in a ring array and are provided with a plurality of top pushing adjusting members, each of the support vertical rods is provided with a plurality of top pushing adjusting members, and each of the top pushing adjusting members is arranged in a plurality of layers in a ring array, so that the lattice column and the reinforcing cage can be kept vertical under the adjustment and support during the lowering process, the connecting process, the bottom touching process, the verticality adjusting process and the pouring process; the lifting equipment can intermittently lift at least two groups of the lattice columns and the reinforcing cage for pre-buried and pouring at the same time, the time arrangement is reasonably optimized, the overall working hours are shortened, the work efficiency is improved, and the vertical error and the rotation error are reduced.

The utility model relates to the technical field of lifting equipment, in particular to a square cabin lifting walking device. The lifting walking device comprises a traction mechanism and two walking mechanisms, each walking mechanism comprises an installation base, a steering base, a lifting assembly and wheels, the steering bases are rotationally installed on the installation bases, and the wheels are rotationally installed on the steering bases. The traction mechanism comprises a traction cross rod, a swing rod and two pull rods, the two ends of the traction cross rod are connected with the two installation bases in a one-to-one correspondence mode, the first end of the swing rod is hinged to the traction cross rod, the first ends of the two pull rods are hinged to the second end of the swing rod, and the second ends of the two pull rods are hinged to the two steering bases in a one-to-one correspondence mode. In the using process, when the traction direction of the traction swing rod is changed, the swing rod can be driven to deflect, and the swing rod synchronously drives the two wheels to steer synchronously through the two pull rods. The wheel can be prevented from deflecting in any direction, so that abrasion of the wheel is reduced, the service life of the wheel is prolonged, and the service life of the lifting walking device is prolonged.

A kind of transfer trolley lifting and dumping device, the device is provided with lifting mechanism on trolley to lift or lower the inside installed turnover material conveying device, the turnover material conveying device is the turnover platform consisting of turnover support and belt conveying mechanism, the barrel material is placed on the turnover platform, the inside belt conveying mechanism is conveyed to the arc-shaped flow guide seat at front end and is locked with it, after lifting equipment entrance, the whole turnover material conveying device is driven to forward overturn by the turnover motor on lifting seat, the barrel material is tilted forward and the material is poured out, the device is to lift and pour material by placing barrel material on the turnover platform, combined with the arc-shaped flow guide seat at front end, can provide stable lifting and dumping support for barrel material, can deal with the dumping of larger weight material, completely avoids the risk of large weight barrel material tilting and falling, the reliability is relatively high, to a certain extent, guarantees the safety production of enterprise.

This invention relates to the field of subway tunnel rail panel construction technology, and particularly to a suspended rail laying equipment and its usage method. The equipment includes a slide rail, hoisting equipment, a reversing clamp, lifting equipment, and an electromagnetic air pump. The hoisting equipment includes a fixing component and multiple sets of fixing devices spaced apart. Each set of fixing devices includes a gantry and two retraction devices. The fixing component is mounted on the slide rail, and the two retraction devices are symmetrically arranged on both sides of the gantry. The retraction axis of the retraction devices is perpendicular to the tunnel excavation axis. One end of the retraction device is fixedly connected to the fixing component, and the other end is connected to the bottom of the gantry. The reversing clamp is installed below the gantry, and the lifting equipment is located below the reversing clamp. This invention allows the rail laying equipment to be moved to the next cycle position via the slide rail for rail panel hoisting, resulting in a more advanced technology. The hoisting equipment enables rapid installation, utilizes more space inside the tunnel, avoids secondary damage to the main tunnel structure, and is beneficial for finished product protection.

The invention relates to the technical field of crane self-lifting equipment, and discloses a self-lifting hoisting system. The system comprises a steering mechanism, a crane, a guide mechanism and a lifting mechanism. The two opposite sides of the crane are provided with crane guiding pieces respectively. The guide mechanism comprises at least two guide driving structures and a guide rope driven by one guide driving structure; and the guide rope extends towards the cabin, is wound on the steering mechanism and is connected with the other guide driving structure. The lifting mechanism is connected with the crane and used for lifting the crane to the cabin. In the lifting process of the crane, the crane guide piece makes contact with the guide rope and slides along the guide rope so as to guide the lifting path of the crane. According to the invention, the crane guide piece is utilized and is matched with the steering mechanism, the guide driving structure and the guide rope, so that constraint can be formed on two opposite sides of the crane in the lifting process, the wind load disturbance is effectively weakened, the shaking or rotating risk can be greatly reduced, and the lifting stability and the high-altitude operation safety of the crane can be improved.

The utility model discloses a cutting plate grabbing device which comprises a main hanging beam, an opening and closing driving mechanism and a cutting plate holding claw which are sequentially arranged from top to bottom. The main lifting beam comprises a strip-shaped beam body which is horizontally arranged; the opening and closing driving mechanism comprises a worm lifting mechanism, a connecting beam and two connecting rod groups; the worm lifting mechanism is centrally fixed at the bottom of the main lifting beam, and a movable lead screw of the worm lifting mechanism is vertically downward and is connected with a horizontally arranged connecting beam; the two connecting rod sets are symmetrically arranged on the two end sides of the main beam body, and the top ends of two connecting rods of each connecting rod set are hinged to the end wall of the main beam body. The plate cutting holding claw is composed of two clamping claws symmetrically arranged below the two connecting rod sets, each clamping claw is composed of two crossed and hinged fold-line-shaped claw bodies, the top ends of the two fold-line-shaped claw bodies are hinged to the bottom ends of the two connecting rods on the same side, and the bottom ends of the two fold-line-shaped claw bodies are provided with oppositely-arranged hook bodies. The cut plate grabbing device is connected with hoisting equipment, so that the hoisting operation of bundled cut plates can be realized, manual operation assistance is not needed, the operation efficiency is high, and the risk is low.

The invention discloses a method for manufacturing and installing a basement large oil tank, and relates to the technical field of basement equipment manufacturing and installing. In order to reliably solve the transportation and installation bottlenecks of the oversized finished oil tank under the premise of not depending on segmented splicing, the invention provides the following technical scheme: the method comprises the following steps: S1, synchronously forming and reserving a secondary hoisting hole for penetrating and hoisting in a structural construction stage of a basement top plate; s2, the discrete raw materials which are subjected to surface treatment and form the oil tank are hoisted to a basement through the secondary hoisting holes, the maximum boundary dimension of the discrete raw materials is smaller than that of the finished oil tank, and the discrete raw materials are matched with the secondary hoisting holes; s3, the discrete raw materials are transferred to a preset installation position through carrying equipment in the basement; and S4, at the mounting position, the discrete raw materials are spliced and welded into a complete oil tank on site through cooperation of hoisting equipment and carrying equipment. According to the method, systematic optimization is realized in the aspects of implementability, economy, construction period control and project quality.

The invention provides self-propelled hoisting equipment and a method thereof, and relates to the technical field of hoisting equipment.The self-propelled hoisting equipment comprises a base and a workbench, a lifting mechanism is arranged between the base and the workbench, a console is installed on the workbench, and a hoisting arm is installed on the console; supporting mechanisms are arranged on the periphery of the base, and inclined supporting rods are arranged between the supporting mechanisms and the workbench. The counterweight plate is installed on the side, away from the cargo boom, of the control table, a driving part, a first counterweight assembly and a second counterweight assembly are arranged on the counterweight plate, and the driving part is connected with the first counterweight assembly and the second counterweight assembly and used for driving the first counterweight assembly and the second counterweight assembly to be away from or close to the control table at the same time; a locking mechanism is arranged on the inclined supporting rod so that the inclined supporting rod can be self-locked, and a control mechanism is arranged between the locking mechanism and the driving piece. And the effects of flexible operation, quick and efficient balance weight adjustment and the design of the inclined supporting rods can greatly improve the stability and the anti-overturning capacity of the equipment are achieved.

This utility model relates to the field of lifting equipment technology, specifically disclosing a lifting device with a chain transmission mechanism. The inner walls of the frame are vertically provided with guide rail grooves. Upper and lower rotating shafts are rotatably installed between the top and bottom walls of the frame, with upper and lower sprockets fixedly fitted near their respective ends. The lifting platform includes a lifting frame, guide wheels rotatably installed on the top and bottom of the two side walls of the lifting frame and rolling along the guide rail grooves, adjusting pulleys slidably engaged with the top and bottom ends of the two side walls of the lifting frame in a horizontal direction, and tensioning screws for adjusting the horizontal position of the adjusting pulleys. The outer end of the adjusting pulleys is provided with rollers that roll vertically along the inner wall of the guide rail groove. Chains are connected between the top and bottom ends of the two side walls of the lifting frame, with the top and bottom of the chains passing over the upper and lower sprockets respectively. A power component for driving the upper rotating shaft is provided at the top of the frame. This design effectively solves the problems of unstable movement and inconvenient leveling of the lifting platform in lifting equipment.

This application relates to the field of lifting equipment technology, specifically providing a hoisting machine and a support adjustment method. The hoisting machine includes a chassis, which comprises a frame, a first front axle, and a second front axle connected to the frame. The first and second front axles are independently mounted on the frame, or the first and second front axles form a modular front axle assembly connected to the frame. Increasing the load capacity generally requires increasing the frame and axle dimensions to meet load-bearing and stability requirements, but this easily leads to exceeding specifications and limitations. The hoisting machine provided in this application uses multi-axle support at the front end of the frame. By increasing the number of front axles, it significantly increases the machine's load-bearing capacity and load capacity without increasing the size or requirements of the axles and the frame itself, thus at least partially solving the problem of insufficient front axle load-bearing capacity in existing front-end hoisting cranes.

The utility model relates to the field of lifting appliances, and discloses a lifting appliance for metal block hoisting equipment, which comprises a component, connecting arms are rotatably connected to two sides of the lower part of the component, a support arm b is hinged to the outer side of a group of connecting arms on the left side, a support arm a is hinged to the inner side of a group of connecting arms on the right side, and the middle parts of the support arm a and the support arm b are mutually hinged; fixing pieces are arranged on the lower portions of the supporting arm a and the supporting arm b, and adjusting assemblies are arranged on the inner walls of the fixing pieces; the adjusting assembly comprises a movable supporting piece connected to the inner wall of the fixing piece in a sliding mode, and a sliding rail is fixedly connected to the outer side of the movable supporting piece. According to the utility model, the bidirectional lead screw and the worm and gear structure of the adjusting assembly are matched with the threaded sleeve and the rotating worm to drive the bidirectional lead screw to rotate and drive the movable supporting pieces to slide in the fixed piece, so that the distance between the two movable supporting pieces is adjusted, the lifting requirements of metal blocks with different sizes are met, and the universality of the lifting appliance is improved.

The invention provides a large-scale load test device and test method for a crane, and relates to the technical field of nuclear power hoisting equipment, and the device comprises a cross beam, a shoulder beam, a supporting leg group, a pedestal, a pressure test assembly, a cushion block, and a tested piece. The supporting leg group is connected with the base and the shoulder beam to form a supporting frame; the pressure testing assembly is arranged on the upper plane of the shoulder beam. The cushion blocks are placed on the shoulder beam and located on the two sides of the hydraulic cylinder. And the cross beam is arranged above the shoulder beam and is positioned through a guide structure. During testing, the cross beam is jacked through the pressure testing assembly, and a load is applied to a tested piece connected between the cross beam and the base. According to the invention, hydraulic loading is used for replacing the traditional mode of'lifting equipment + balancing weight ', the device has the advantages of simple structure, simplified process flow, high load applying precision, safe and reliable operation and the like, and the problems of large occupied area, long period and high cost of the traditional test method are effectively solved.

The application provides a double-hoop method cap beam construction platform and a construction method, wherein the basket body is box-shaped, the middle part of the basket body is provided with a socket, the bridge pier column is inserted into the socket, and the basket body is arranged around the bridge pier column; the lifting mechanism is arranged on the ground, the lifting mechanism is connected with the basket body, the lifting mechanism is used for driving the basket body to slide up and down, and the limiting hoop assembly is slidably arranged on the basket body; the limiting hoop assembly can abut against the bridge pier column due to sliding, and at this time, the limiting hoop assembly can be locked and fixed on the bridge pier column. By arranging the limiting hoop assembly on the basket body and fixing the limiting hoop assembly on the bridge pier column, the setting of the limiting hoop assembly can support the bridge hoop during construction, and compared with continuously hoisting the bridge hoop in the air by the lifting equipment, the use time of the lifting equipment can be greatly reduced, and the use cost of the lifting equipment is reduced.

This utility model relates to an adjustable lifting boom sling, belonging to the technical field of lifting equipment. It includes an upper clamping plate, a lower clamping plate, lifting lugs, a left connecting piece, a right connecting piece, and a sleeve. The upper and lower clamping plates are connected by the left and right connecting pieces, forming opposing upper and lower clamping surfaces. The sleeve is fitted onto the left and right connecting pieces, and the lifting lugs are welded to the upper clamping plate. The beneficial effects of this utility model are: by adjusting the distance between the upper and lower clamping plates, the main chord of the lifting boom is clamped in the upper and lower directions; by adjusting the size of the sleeve, the main chord of the lifting boom is clamped in the left and right directions. This solves the problem of welding multiple lifting lugs to the boom sections during boom-changing assembly, saving production costs and solving the safety hazard problem caused by relative sliding of the lifting boom during sling lifting.

The utility model relates to the technical field of hoisting, in particular to a hoisting cage structure for hoisting tray materials used at the bottom. Comprising a cage body, the cage body comprises an upper positioning frame and a lower positioning frame which are opposite, a vertical rod is arranged between the opposite corners of the upper positioning frame and the lower positioning frame, two sets of supporting rod mechanisms with the adjustable distance are arranged at the bottom of the inner side of the cage body in parallel, and a control linkage mechanism connected with the two sets of supporting rod mechanisms is arranged on the outer side of the cage body. And a locking mechanism is arranged between the control linkage mechanism and the cage body. By arranging the distance-adjustable supporting rod mechanisms and the linkage control mechanism, the problems of low efficiency and material damage caused by the fact that an existing cage needs to carry materials manually are solved, the structure can be directly connected with the whole tray material in a sleeving mode, the two supporting rod mechanisms are rapidly controlled to move face to face or relative to each other through the linkage mechanism, and the material conveying efficiency is improved. And the bottom of the tray is lifted by directly using the supporting rod mechanism, so that material loss caused by repeated carrying is avoided.