42 results about "Lifting weight" patented technology

This invention discloses a winch ratio identification device, method, and crane. The winch ratio identification device includes: a rope end detection module for detecting the fixed position of the rope loop; a motor pressure detection module for detecting the motor pressure value; a lifting weight detection module for detecting the lifting weight value; and a ratio calculation module for identifying the winch ratio using a preset algorithm based on the position detected by the rope end detection module, the motor pressure value detected by the motor pressure detection module, and the lifting weight value detected by the lifting weight detection module. This invention offers higher reliability.

The utility model provides a liquid tank transfer mechanism of a small-hoisting-weight gantry crane, which relates to the field of liquid tank transfer and comprises a transfer assembly, the transfer assembly comprises a hoisting trolley, a first connecting steel rope, a lifting lug, a lifting bar, a second connecting steel rope and a connecting lifting hook, and a hoisting row mechanism is arranged at the bottom of the transfer assembly. The hanging row mechanism comprises a connecting frame, an adjusting frame, a threaded groove, a fastening threaded rod, a stabilizing block, a hanging row frame, an adjusting groove, a sliding groove and a clamping groove, a stabilizing assembly is arranged at the bottom of the hanging row mechanism, the stabilizing assembly comprises a connecting belt, a main lifter and a supporting belt, and a liquid tank segment body is arranged at the top of the stabilizing assembly. When the liquid tank segment body is hoisted, the gravity center of the liquid tank segment body is ensured to be stable, and the transfer of the liquid tank segment body is not limited by the hoisting weight of a crane and the gravity center position of the liquid tank segment body through the connection of the connecting frame and the hoisting bent frame, so that the transfer safety of the liquid tank segment body is ensured.

This invention relates to the field of mechanical engineering, specifically to a method and device for calibrating the anti-tilting entry angle of the main boom in lifting equipment. This application employs an automatic calibration process under no-load conditions. First, it collects the main boom's self-weight torque and force-related parameters based on the initial low-position angle. Then, it identifies the actual entry angle by utilizing the abrupt change in torque difference during uniform boom lifting. Finally, it calibrates the torque of auxiliary components based on this angle. Its beneficial effects are derived as follows: Manual calibration is prone to errors in the perceived entry angle and the actual force applied. This application eliminates the subjective errors of manual calibration by determining the entry angle through the abrupt change in torque difference. With accurate actual entry angle, the torque limiter can match the actual force state of the hydraulic cylinder during calculation, avoiding the error of "prematurely calculating / omitting the anti-tilting torque," thus significantly reducing the deviation between the theoretical and actual lifting weight. This solves the problem of false overload alarms affecting operational efficiency and avoids safety hazards caused by deviations in lifting weight calculation.

The invention discloses an ultra-deep large-diameter tubular pile hoisting process which comprises the following process steps: 1) determining an estimated pile length and a maximum hoisting capacity according to a tubular pile material and geological conditions, and selecting a 150t crawler crane; (2) butt joint with a tubular pile manufacturer is conducted, a reserved sleeve with the diameter being 60 mm and two rows of hoisting holes with the interval being 50 mm are formed in the hoisting side of the tubular pile, and the design of reinforcing ribs is deepened; (3) a steel bar with the diameter being phi 55 mm is inserted into a hoisting hole in the upper portion of the pile end, a common steel wire safety pin with the diameter being 3 mm is arranged, two steel wire ropes with the diameter being 39 mm are used for surrounding the outer wall of the pipe pile for hoisting, and the safety coefficient of the steel wire ropes is 6; (4) clamping the pipe pile by a special clamp after the pile hole is in place, inserting a steel bar into a hoisting hole in the lower part of the pile end, and loosening the steel wire rope after confirming the fixation, and (5) lowering the pile at the speed of 1m / min after the end plate is welded and cooled for 8min, and repeating the operation until the whole pile is completed through multiple anti-slip designs, so that the hoisting safety and quality of the ultra-deep large-diameter pipe pile are guaranteed.

A hip thrust attachment exercise system includes a bench, a support system coupled to the bench and having a support bar underneath the bench; and a bench support brace extending from the bench and coupled to the support bar; a first leg and a second leg each extending from the support bar; a weight stand having a first stand leg with a first handle; a second stand leg with a second handle; and a bar extending between the first stand leg and the second stand leg; and a rotational support bracket extending from the bench and coupled to the bar such that the bar can rotate within the rotational support bracket; the weight stand is to be lifted via the first and second handles such that the bar rotates within the rotational support bracket; and once the weight stand is lifted, the user can perform a hip thrust exercise.

An interchangeable weight bar device for attaching numerous weightlifting bars to a Smith machine includes a frame that has a base, a top, and a pair of columns that are coupled to and extend between the base and the top. A pair of sleeves are movably coupled to the pair of columns. A pair of tubes is coupled to the pair of sleeves. A barbell is movably coupled to the frame wherein the barbell is slidable along the pair of columns between the base and the top of the frame to facilitate a user in lifting weights. The barbell includes a pair of outer sections that are positioned to extend through the pair of tubes wherein each outer section of the pair of outer sections is positioned within a respective tube of the pair of tubes. A central section is removably couplable to the pair of outer sections.

The utility model discloses a lifting limiting device of a tower crane, which relates to the technical field of tower cranes and comprises a frame component and a lifting limiting component, and the lifting limiting component comprises a pulley, a pulley yoke, a weight limiter and an outer support wheel. An auxiliary supporting assembly is arranged in the area below the outer supporting wheel and the weight limiter. By arranging the auxiliary supporting assembly, when the hoisting capacity limiter breaks and loses efficacy, the concave supporting frame limits and supports the downward movement of the outer supporting wheel, so that the pulley yoke can be prevented from continuing to rotate downwards, the effect of temporarily supporting the pulley yoke is achieved, sudden falling of the pulley yoke is avoided, and meanwhile the hoisting capacity limiter is prevented from being damaged. When the tower crane is used, broken and invalid lifting limiters and fragments generated by breakage can be borne by the bearing net frame, potential safety hazards caused by high-altitude falling objects are avoided, in addition, the steel wire rope can be prevented from falling off from the groove of the pulley through the middle limiting wheel, and the use safety of the tower crane is effectively improved.

1. The name of the design product: weight limiter. 2. The use of the design product: the product is mainly used to limit the overload of crane machinery. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective drawing.

The application discloses a kind of hoisting and turning over method of warship aluminum ship body, belong to ship body hoisting and turning over technical field, solve the technical problem that existing hoisting and turning over scheme construction cycle is long, labor cost is high.Method is: using aluminum alloy lifting weight is welded to ship body and hoisted and turned over, specifically: the segmented ship body of warship aluminum is carried out;Determine hoisting and turning over mode, the arrangement of aluminum alloy lifting weight, the selection of aluminum alloy lifting weight form, the analysis of lifting point position strength and the determination of hoisting strengthening form;Before hoisting and turning over, the lifting point area is strengthened;Weld aluminum alloy lifting weight, check weld internal quality, mark point is made around aluminum alloy lifting weight;The segmented ship body is hoisted and turned over;After hoisting and turning over, check weld internal quality, surrounding plate deformation condition;The form of aluminum alloy lifting weight or lifting point position or strengthening form is improved.Using aluminum alloy lifting weight hoisting and turning over can greatly improve the efficiency of ship building, reduce manpower and material resources, and improve efficiency.

The application discloses a prefabricated beam manufacturing process automatic identification method and system based on multi-source data, which comprises the following steps: acquiring the position of steel bars and the binding condition, the position change of a template, the temperature change in a steam curing kiln, the key parameters in the prefabricated beam production process, the gantry crane and the position of the lifting hooks of the gantry crane, and the lifting weight information of the lifting hooks of the gantry crane; the data storage and processing module automatically identifies each process in sequence through an AI algorithm; when the steel bar binding process starts, a process warning unit of a process warning and prefabricated beam process binding module automatically creates a virtual beam number associated with the process, the process warning unit automatically generates the content of a short message notification according to the current production line data and automatically sends the short message notification to the relevant person in charge; the person in charge accesses the virtual beam number list provided by the process warning unit, selects the corresponding virtual beam number to bind the process data, dynamically adjusts the virtual beam number to the real beam structure number, and realizes the automatic identification of the prefabricated beam manufacturing process.

The invention provides a gluing device and method for improving the surface energy of a balancing weight. The gluing device comprises a mounting table, a feeding mechanism, a conveying mechanism, a cleaning mechanism, a pushing mechanism and a gluing mechanism. The feeding mechanism is connected to the mounting table, the other mechanisms are arranged on the mounting table, an outlet of the feeding mechanism is connected to the conveying mechanism, and balancing weights are conveyed to the mechanisms; the cleaning mechanism is connected to the conveying mechanism and comprises a cleaning tool with the bottom provided with a hollowed-out part and plasma cleaning equipment, and the bottom of the balancing weight is cleaned through a plasma cleaning head below the hollowed-out part in the moving process of the balancing weight; and the cleaned balancing weight is conveyed to the rubberizing tool by the pushing mechanism, and an adhesive tape is pasted to the bottom of the balancing weight through the rubberizing mechanism. According to the gluing device, the surface of the balancing weight is cleaned through the plasma cleaning equipment, the surface energy of the balancing weight is effectively improved, the bonding strength is guaranteed, the purchasing and machining cost is effectively reduced, integrated machining is achieved, operation is convenient, and the working efficiency is high.

The utility model discloses a four point of prefabricated concrete block's even load hoisting structure, including a plurality of groups fixed setting on the hoisting ring of prefabricated concrete component, every group hoisting ring at least includes two, and the inside of every group hoisting ring is provided with a rigid link, and the rigid link passes through all hoisting rings of this group, and the middle part of rigid link is fixedly connected with one end of steel wire rope, and the other end of a plurality of steel wire ropes is concentrated in hoisting equipment lifting point. Both ends of rigid link are fixedly provided with end anti -slip device. Through the even load design of " multiple hoisting ring + rigid link", effectively disperses the concentrated load, and the safe lifting weight of single lifting point is doubled, and successfully breaks through the technical bottleneck of the hoisting of hundred tons class concrete component. The rigid link ensures that a plurality of hoisting rings are uniformly and synchronously stressed, and the end anti -slip device completely eliminates the risk of rod disengagement, and the structure is stressed explicitly, and the safety redundancy is high.

The utility model relates to a kind of display hanging assembly, including hanging seat, connecting seat and the horizontal shaft of both, and it is provided with damping structure between hanging seat and connecting seat;Wherein: a double lug is riveted rotatably in the rear part of hanging seat, double lug is clamped in the both sides of connecting seat, and be passed through by horizontal shaft, form rotatable positioning;The double lug is still provided with a traction shaft above the horizontal shaft passes through, spring is hung between the traction shaft and connecting seat, within the pitch travel of hanging seat, spring is always above horizontal shaft. The utility model has the characteristics of unique conception, reasonable space, large bearing capacity;The expansion and contraction of spring in structure adapt to the weight change caused by the pitch angle of hanging seat, the spring is elongated at large pitch angle, and the spring force is also increased, and both form dynamic balance, the external force required for adjustment is relatively constant, improve use experience.

The invention relates to a modular large-tonnage rubber-tyred beam carrying machine self-adaptive to multiple working conditions, and relates to the field of bridge construction equipment. According to the technical scheme, various hoisting tasks with obvious span, hoisting height and hoisting capacity differences can be quickly adapted through structure adjustment. Specifically, firstly, one machine has multiple purposes, the working condition from double-machine combined hoisting super tonnage to single-machine medium tonnage is covered by means of modular design, the equipment purchase quantity and the management cost are greatly reduced, and the utilization rate is remarkably improved; working condition conversion is efficient, the length of a main beam and the height of a supporting leg are adjusted by increasing or decreasing standard sections, a lifting tool is replaced through a rapid connector, most modification can be completed in a beam field, consumed time is short, and the influence on the construction progress is small; the structure is safe and reliable, the structure is optimized according to different working conditions, and it is ensured that the structural strength, rigidity and whole machine stability under all configurations all meet safety specifications; and 4, the economic benefit is prominent, special equipment is prevented from being purchased for different working conditions, and the one-time investment and long-term maintenance cost are greatly reduced.

This invention provides a crane with a boom mounted on a chassis and capable of variable-amplitude rotation relative to the chassis in a vertical plane. A super-boom can rotate relative to the boom in both vertical and horizontal planes, driving the boom's variable-amplitude rotation. A lateral tension adjustment mechanism is connected between the two super-booms, capable of extending and retracting relative to the super-booms and adjusting the lateral tension length to laterally limit the super-booms in a horizontal plane. In a preparation and verification mode, the controller is configured to: acquire the operating condition command and the initial lateral tension length of the lateral tension adjustment mechanism; release the rated lifting capacity limit of the boom; and enter the lifting protection mode. This invention, by adding a lateral tension adjustment mechanism between the two super-booms, limits the outward bending tendency of the super-booms, reducing their deformation and stress. Furthermore, by matching the operating condition command with the initial lateral tension length and initial super-boom swing angle, it completes the preparation and verification of the boom before formal operation, eliminating operational safety risks and improving the crane's operational safety.

The utility model discloses an upper limiting device of a hoist hook lifting heavy hammer, which comprises an insulating rod, a guide component and a heavy hammer limiting switch, and the insulating rod acts on the tail end of an ascending path of a hoist hook pulley block; the guide assembly is connected with one end of the insulating rod and is used for guiding the movement of the insulating rod; the heavy hammer limit switch is fixedly connected above the tail end of an ascending path of the hoist hook pulley block, a trigger output end of the heavy hammer limit switch is connected with a heavy hammer connected with the other end of the insulating rod through a traction rope, and the heavy hammer limit switch is used for triggering the hoist hook pulley block to stop running; compared with the prior art, the structure is relatively simple, installation and maintenance are relatively easy, force is transmitted through the insulating rod, the traction rope, the heavy hammer and the like, the impact force borne by the heavy hammer limiting switch is relatively small, and the hoist hook pulley block runs more safely.

A welfare unit (1) such as a toilet, shower or storage facility having an enclosure defining a unitary body (2) with access door (7) and means for attaching the enclosure / welfare unit to a lifting hoist. A lifting hanger (35, 45) is adapted to transfer lifting forces, applied through a detachable lifting eye (5) evenly throughout the enclosure to provide a rateable lifting weight (safe working load) of said. There is further described a method of forming a welfare unit having a lifting hanger moulded within a roof section (3) of the enclosure and a compartment (C) for receiving a removable foul tank (50, 60). Further features and components are provided to form a welfare unit that is workplace compliant to national, regional and international regulations.

The utility model provides a telescopic adjusting mechanism and weightlifting equipment comprising the telescopic adjusting mechanism, the telescopic adjusting mechanism comprises a rotating sleeve, a fixed sleeve and two telescopic shafts, the rotating sleeve is arranged on the periphery of the fixed sleeve, and the telescopic shafts are arranged in the fixed sleeve; the side wall of the rotating sleeve is provided with two spiral guide grooves which are oppositely arranged in a staggered mode. The side wall of the fixed sleeve is provided with two linear track grooves which are oppositely arranged in a staggered mode. Protruding parts are arranged at the ends, close to each other, of the telescopic shafts, and the two protruding parts are arranged in a staggered mode. The protruding part is provided with guide shafts, and the two guide shafts are inserted into the two rail grooves and the two guide grooves. The maximum extending length of the handle can be increased, when the weight lifting device is applied to the weight lifting device with the weight stacks capable of being adjusted, more weight stacks can be lifted, and the maximum weight lifting weight of the weight lifting device is improved.

The invention describes a welfare unit (1) such as a toilet, shower or storage facility having an enclosure defining a unitary body (2) with access door (7) and means for attaching (4) the enclosure / welfare unit to a lifting hoist. The means for attachment is adapted to transfer lifting forces evenly throughout the enclosure via frame elements (25) moulded integrally with the unitary body to provide a rateable lifting weight (safe working load) of said enclosure substantially greater than the inherent weight of the enclosure, including access door and fittings associated with the function thereof. There is further describes a method of forming a welfare unit comprising an enclosure having frame elements integrally formed therein. The method includes preferred moulding steps, formation of the means for attachment to a lifting hoist and selecting interior components to define the utility of the welfare unit.

The invention discloses an anti-overturning stability calculation method, system and equipment for hoisting operation and a storage medium, and relates to the field of crane stability performance, the method comprises the following steps: based on an actual crane, establishing a crane physical model, and carrying out hoisting capacity calculation to obtain a zero moment point coordinate; based on a crane physical model and the zero moment point coordinates obtained through calculation, considering the influence of inertia force generated by hoisting load swing on the zero moment point, and establishing a dynamic model; according to the dynamic model, calculating the self acceleration of the crane and the rotation acceleration of a suspension arm, and analyzing the maximum lifting capacity in different states; on the basis of the calculated maximum hoisting capacity and zero moment point coordinates, comparing the actual hoisting capacity with the maximum hoisting capacity, judging whether the crane has an overturning risk or not, and deciding whether to give an alarm or not; the method can improve the hoisting capacity utilization rate of the crane, accurately judge the stability, reduce the overturning risk and guarantee the high efficiency and safety of the hoisting operation.

This invention discloses a detachable lifting clamp fixture for ships. It includes a connecting assembly, a driving assembly, and a suspension assembly. The connecting assembly includes a clamping member and a top support member. The clamping member can clamp and fix the web of a pre-shaped profile, and the top support member can abut against the panel of the pre-shaped profile from top to bottom. The driving assembly is connected to the connecting assembly to drive the connecting assembly to clamp and release the web. The suspension assembly is connected to the connecting assembly and is used to install the lifting clamp. Through the clamping member and the top support member, the pre-shaped profile can be detachably fixed in a clamping manner, and the lifting weight can be applied to both the web and the panel simultaneously. Compared with welding the lifting clamp, this avoids welding work, improves lifting efficiency, reduces lifting costs, and reduces damage to the hull structure. Furthermore, by distributing the weight, it reduces the risk of deformation and damage to the hull structure, especially the panel of the pre-shaped profile.

This invention discloses a high-capacity multi-jaw hook and its assembly and testing methods, belonging to the field of lifting hook technology. The high-capacity multi-jaw hook includes: a boom with a thrust self-aligning roller bearing mounted on it; a hook body, including a hook body and a hook tip, which are welded together; the thrust self-aligning roller bearing supports the hook body, and the hook body is also equipped with a self-aligning roller bearing. The boom passes through the self-aligning roller bearing and the center of the hook body, allowing the hook body to rotate relative to the boom; the maximum lifting capacity is 3500t or more. This invention enables the assembly and testing of high-capacity multi-jaw hooks.

The invention relates to a pumped-storage power plant for storing and feeding electrical energy back into the grid and for adjusting the grid load in a power grid (9) connected to the pumped-storage power plant, wherein the pumped-storage power plant comprises a plurality of lifting modules (4), and wherein each of the lifting modules (4) includes a double winch arranged at ground level, a lifting weight (4.2) suspended therefrom by two winch cables (4.3), cable guides for guiding the winch cables (4.3) and the lifting weight (4.2), and an electronic unit for control and power conversion. The individual lifting modules (4) are controlled as required via a central control unit (5). Due to its modular design, the pumped-storage power plant enables highly efficient, flexible energy buffering and is particularly suitable for integration into decentralized energy supply systems.

This invention discloses a four-layer winding lifting system, comprising a drum assembly, a first pulley group, a second pulley group, a third pulley group, a fourth pulley group, a first balance pulley, a second balance pulley, a first wire rope, a second wire rope, and a hook assembly. The first wire rope passes through the first and second pulley groups at both ends and is introduced to the bottom of the drum assembly; the tension between the two pulley groups is adjusted by the first balance pulley. The second wire rope passes through the third and fourth pulley groups at both ends and is introduced to the top of the drum assembly; the tension between the two pulley groups is adjusted by the second balance pulley. The hook assembly is connected to the four pulley groups. The drum assembly includes a winding rope groove, forming four layers of winding. Each pulley group includes a fixed pulley, a movable pulley, a guide pulley, and a cable guide pulley. This invention uses a single drum assembly to achieve four layers of winding, significantly reducing costs, space occupation, and overall weight while ensuring large lifting capacity and high lifting ratio, and improving operational stability. It is suitable for heavy-duty lifting equipment.

An articulating arm for lifting weight operably coupled thereto that can be employed for various applications such as but not limited to exercise equipment, wherein the arm member is movable in an x-axis and y-axis direction. The arm includes a base portion that is operably coupled to a frame. The base portion is mounted to the frame utilizing pin member wherein the pin member facilitates rotational movement of the base portion in an x-axis direction. The base portion has operably coupled thereto an arm member. Arm member has a first end and second end wherein the first end is movably coupled to the base portion utilizing pivot pin member. The pivot pin member facilitates movement of the arm member in a y-axis direction. The arm member has integrally formed therewith on opposing ends pulley housings having pulleys therein operably coupled with a cable.

The invention discloses a low-carbon multi-adaptive lifting capacity limiter, which can realize self-adaptive switching of sampling channels according to the type of an output signal of an external weighing sensor according to an analog signal processing circuit, and avoids the problem that the sensor needs to be replaced or a signal transmitter needs to be additionally arranged. The load state of the crane is automatically detected under the condition that peripheral equipment is not added, and through the dormancy control circuit, the crane can enter the dormancy state when no load exists continuously and automatically quit dormancy to start weighing when the load exists. According to the invention, in an on-site reconstruction project, on-site sensors can be utilized to the greatest extent, use of intermediate conversion equipment is reduced, and resource consumption in a hardware production process is reduced; an automatic sleep mode is added by using the sleep control circuit, the overall operation power consumption of a product is reduced, and meanwhile the overall service life of electronic elements is prolonged. The manufacturing cost and the equipment operation cost are reduced, and the development trend of low carbon and environmental protection is met.

The invention discloses a foundation engineering detection device, and the device comprises a rack which is provided with a movable frame capable of moving up and down; the sliding frame is connected to the movable frame in a sliding mode in the vertical direction, and the sliding frame is connected with a probe rod; the lifting mechanism comprises a lifting driving source and a lifting part, the lifting part comprises a transmission assembly, a lifting assembly and a heavy hammer, the lifting assembly and the heavy hammer are slidably connected to the movable frame in the vertical direction, the lifting driving source can drive the lifting assembly to move up and down through the transmission assembly, and the lifting assembly can lift and release the heavy hammer upwards; the heavy hammer can fall to abut against the sliding frame, the number of the lifting parts is at least two, and when the heavy hammer in one lifting part abuts against the sliding frame downwards, the heavy hammer in the other lifting part is lifted upwards to the top end of the stroke. The waiting time of the heavy hammer lifting process in traditional single-hammer equipment is shortened, and the detection and investigation efficiency of foundation engineering is greatly improved.

The utility model relates to scaffold connecting technical field discloses a cantilever component connecting structure, include: cantilever component and connecting structure, cantilever component sets up as split type, connecting structure installs on the cantilever component to with split type the cantilever component fixed formation whole structure. The cantilever component is set as split type, specifically can be divided into two sections, when installing, can install one by one, then utilizes connecting structure and split type cantilever component is assembled to form integral force structure. Through above -mentioned structure, when engineering small amount cantilever steel component is longer, is far away from the fixed hoisting equipment that has had, or mobile hoisting equipment movement adjustment is limited, exceeds the maximum lifting weight of hoisting equipment maximum hoisting distance. Through segmentation reduces single lifting weight, rotates and installs and reduces the moment, adapts to hoisting limit, and avoids increasing large hoisting equipment, saves the cost, especially applicable to the space limited scene.

The invention relates to a lifting storage unit for storing and feeding back electrical energy and for adapting the grid load in a power grid (9) connected to the lifting storage unit, wherein the lifting storage unit has a plurality of lifting modules (4), and wherein each of the lifting modules (4) comprises a double cable winch arranged on the base, a lifting weight (4.2) suspended thereon on two winch cables (4.3), cable guides for guiding the winch cables (4.3) and the lifting weight (4.2), and an electronic unit for control and current conversion. The individual lifting modules (4) are controlled according to requirements by means of a central open-loop and control-loop control unit (5). As a result of its modular design, the lifting storage unit enables highly efficient, flexible energy buffering and is particularly suitable for integration into decentralised energy supply systems.

The utility model discloses a cantilever crane of an ion ore impurity removal process pool and the impurity removal process pool, the cantilever crane comprises a bottom plate, a stand column, a cross arm and an electric hoist, the lower end of the stand column is fixed on the bottom plate, and the upper end of the stand column is connected with the right end of the cross arm; the lifting device is characterized by further comprising a winch, a first pulley, a second pulley, a lifting hook and a steel wire rope, the winch is installed on the lower portion of the stand column, the first pulley and the second pulley are installed at the two ends of the cross arm respectively, the middle of the steel wire rope winds around the first pulley and the second pulley, and the lifting hook is installed on the lifting hook. The rear end of the lifting hook is connected to the winch, and the front end is connected to the lifting hook. The utility model has the advantages of compact structure, high strength, large hoisting weight, high impurity precipitation efficiency and the like.