3625results about "Building support scaffolds" patented technology

The invention discloses an overhead layer climbing frame wall-attached support steel truss stand column safety monitoring system fused with big data analysis, relates to the technical field of construction monitoring, and is used for solving the problem of recognition misjudgment caused by construction disturbance. According to construction behavior control signals, behavior labels are extracted, a semantic mapping relation between construction behaviors and structure responses is constructed, a behavior-driven data set is generated, a disturbance change trend is extracted through node response tensor and time difference analysis, the behavior labels are fused to construct a structure state vector, and a structure behavior distribution model is established. Analyzing the deviation degree between the current state and the model response, identifying the propagation path of the anomaly in space by combining a structure layout diagram, extracting a high-risk abnormal block mass region by adopting a diagram clustering method, analyzing the structural state change and construction behavior of the abnormal region, triggering different monitoring response strategies, and obtaining a high-risk abnormal block mass region; the structural risk identification and control in the construction process are realized, and the structural safety monitoring efficiency in the floor construction stage is improved.

The present disclosure provides a cylindrical structure construction platform that both a first telescopic portion and an elastic member drive a guiding wheel to tightly abut against an outer template, adjusting radial positions of a pouring pipe and a tamping device according to an outline of the outer template by a second telescopic portion to reduce construction errors, adjusting an inclination angle of the guiding wheel by an adjusting mechanism, a slewing mechanism driving a rotary table to drive the guiding wheel to climb along a surface of the outer template, the pouring pipe is poured layer by layer from the bottom to the top of a pouring cavity to reduce a height difference during pouring for further reducing generation of air holes, the tamping device vibrates layer by layer from the bottom to the top of the pouring cavity to further eliminate the air holes.

The invention discloses a suspension cable soft platform formwork structure for silo conical shell construction and a construction method, and relates to the technical field of silo conical shell construction.The formwork structure comprises a suspension cable net system, a formwork supporting system and an intelligent monitoring system.The suspension cable net system comprises main cables and auxiliary cables which are orthogonally arranged; the main cables are radially distributed along the silo top of the silo body, and the auxiliary cables are annularly arranged along the silo top of the silo body in a closed mode. The formwork supporting system comprises an auxiliary scaffold board and a full supporting frame which are arranged in the suspension cable net system, the upper portion of the full supporting frame is of a circular truncated cone structure forming a silo conical shell, a conical shell side wall mold is arranged on the arc face of the circular truncated cone structure, and a conical shell silo top mold is arranged on the upper bottom face of the circular truncated cone structure. The intelligent monitoring system comprises a load sensor and a tilt angle sensor. According to the method, through dynamic coupling of the orthogonal suspension cable net and the modular supporting system and combination of an intelligent monitoring system, precise control over the construction process is achieved, the steel consumption is reduced, the construction period is shortened, and safety and adaptability are improved.

The invention relates to the technical field of building construction equipment, and discloses a supporting system for supporting a curtain wall construction hanging basket at a light well to be stressed through a scaffold. The system comprises a scaffold stress monitoring module, a hanging basket attitude calculation module, a supporting force distribution module, a structural deformation early warning module and a self-adaptive leveling module. The scaffold stress monitoring module collects and processes stress data; the hanging basket attitude resolving module generates a dynamic balance parameter; the supporting force distribution module optimizes a supporting force distribution path; the structural deformation early warning module predicts a deformation trend and outputs an early warning level; and the self-adaptive leveling module adjusts the hydraulic expansion amount of the scaffold supporting legs to calibrate the level of the hanging basket platform. All the modules work cooperatively, real-time monitoring and precise control over scaffold stress and hanging basket postures are achieved, construction safety can be effectively improved, construction precision and efficiency can be improved, and the system further has the self-adaptive adjustment capacity so as to adapt to the complex construction environment and meet the curtain wall construction requirement of a light well.

The invention provides a cylinder-like building construction steel platform and a construction method, and relates to the technical field of building construction equipment, the cylinder-like building construction steel platform comprises a plurality of vertical frames, a climbing assembly, a top platform and a suspension, and the vertical frames are arranged on the ground and are distributed around a to-be-constructed cylinder-like building; the number of the climbing assemblies is the same as that of the vertical frames, the climbing assemblies are arranged on the vertical frames in a one-to-one correspondence mode, all the climbing assemblies are located in the same horizontal plane, and each climbing assembly comprises two connecting units vertically arranged on the corresponding vertical frame. The overall supporting frame is arranged on the ground, the top platform is erected on the vertical frame, the suspension is installed through the top platform, the suspension forms the surrounding foundation, a constructor conducts construction operation through the surrounding foundation, and for construction operation at different heights, the top platform can be driven to move through the climbing assembly, the construction operation height is adjusted, and the construction efficiency is improved. Therefore, efficient and rapid construction operation of the quasi-cylindrical building is achieved.

The invention discloses a separating and rotating type high-altitude corridor system construction platform and a construction method thereof. The platform comprises a first-stage mounting hole, a second-stage mounting hole, an additional supporting beam and a second-stage supporting beam. The supporting assembly comprises a panel, beam side and plate bottom support and a safety protection assembly. A detachable middle supporting assembly and a temporary support with the adjustable length are adopted, after corridor structure construction is completed, hoisting equipment is used for completing construction, a double-beam assembly composed of a transverse main beam and a longitudinal secondary beam is downwards hoisted to a second-stage mounting hole and a second-stage supporting beam, secondary reconstruction is conducted, and a corridor decoration platform is applied. Pressure relief is achieved by controlling and lowering the temporary support, and the separation difficulty of the middle supporting assembly is greatly reduced. In addition, according to the method, the combination process of the transverse main beams and the longitudinal secondary beams or small beams is completed on the ground, and safe, modularized and efficient splicing construction is achieved.

The construction platform comprises two moving tables symmetrically arranged on the two sides of the cylindrical pier, the two moving tables are made to be away from or close to each other through a translation driving mechanism, a supporting beam assembly shares loads of the moving tables, and a lifting driving mechanism drives the moving tables to ascend and descend synchronously. When the jacking mechanism is in place, the bottom of the supporting beam assembly is jacked to complete supporting system conversion, and the structure of each assembly and the construction method steps are described in detail. The technical effects that repeated self-lifting construction can be achieved, an avoiding space can be provided for moving of the moving table, supporting system conversion is effectively achieved, the construction efficiency and convenience are improved, and construction of the straining beam and the capping beam in the cylindrical pier is completed are achieved.

The invention discloses a concrete cantilever structure pull-up formwork construction method which is characterized by comprising the following steps: load calculation and component model selection; pre-burying the U-shaped bolts; pre-burying the upper-section pull rod; i-shaped steel end connecting plates are welded, and double-layer angle steel connecting plates are welded to the cantilever ends of the I-shaped steel; i-shaped steel cantilever girders are installed; assembling a pull rod system; the pull rods are fastened and leveled with a system, the two pull rods are synchronously fastened, the double rods are ensured to simultaneously advance and retreat during adjustment of an adjusting device, and a level gauge is used for observation and leveling after initial adjustment; the formwork frame and the safety enclosure are installed; pull rod pre-tensioning and deflection monitoring are carried out, pre-tension force is applied through an adjusting device, the deflection of the cantilever end is detected, monitoring points are arranged, and a deformation early warning mechanism is established; regulating and controlling concrete pouring; and removing the mold and recycling. The overhanging structure is high in anti-overturning capacity and suitable for large-span and special-shaped overhanging structures, and the safety is remarkably improved.

An adjustable ladder platform is an apparatus that aids in keeping extension ladders on firm, level footing having an open base frame that sits directly on the unlevel ground, roof surface, pavement or the like a flat surface, similar to a small tabletop that supports the feet of the extension ladder. The two components are then hinged together at one side of the frame. Then the opposite side is supported by two adjustable arms that are attached by bolts and wingnuts that can be attached and removed without tools. The arms are provided with multiple holes to accommodate varying grades. One side of the device is provided with an attached bubble level to ensure levelness of the upper platform to ensure safety. Finally, one side of the device is provided with a handle to facilitate transport.

The invention belongs to the technical field of roof overhanging construction, and particularly discloses a steel structure roof overhanging bottom decoration construction operation platform and a construction method.The operation platform comprises a locking positioning assembly, a height adjusting assembly and an operation platform; the two locking and positioning assemblies are detachably connected with the upper flange or the lower flange of the outer steel beam and the upper flange or the lower flange of the inner steel beam correspondingly. The height adjusting assembly comprises a hanging rail arranged at the bottom end of the locking positioning assembly and a connecting terminal arranged between the hanging rail and the working platform, and the contact surface of the connecting terminal and the hanging rail is provided with tooth structures meshed with each other. The two ends of the operation platform are detachably connected with the two height adjusting assemblies through connecting bolts correspondingly. The inner steel beams and the outer steel beams with different widths are stably connected through the locking and positioning assemblies respectively, and the operation platform is kept horizontal by adjusting the meshing positions of the corresponding hanging rails and the connecting terminals.

The utility model discloses an easy-to-disassemble steel structure construction platform which comprises a plurality of rows of first frame bodies and second frame bodies, the first frame bodies and the second frame bodies enclose a steel pylon and are connected with each other, and the first frame bodies and the second frame bodies are respectively connected with the steel pylon through bolts. The first frame body comprises a first supporting plate in bolted connection with the steel pylon and provided with a plurality of first connecting screw holes and a first walkway located at the upper end of the first supporting plate, and the second frame body comprises a second supporting plate in bolted connection with the steel pylon and provided with a plurality of second connecting screw holes and a second walkway located at the upper end of the second supporting plate. A first guardrail and a second guardrail are arranged on the upper portion of the first walkway and the upper portion of the second walkway respectively, the first walkway is further provided with a climbing plate, the climbing plate is connected with a ladder stand arranged in the vertical direction in a penetrating mode, and the ladder stand is connected to other adjacent first frame bodies in the height direction in the vertical direction. According to the utility model, adverse effects on the steel pylon can be reduced, the construction platform is convenient to mount and dismount, the construction efficiency of the steel pylon is improved, the safety is high, and economy and practicability are realized.

The present invention discloses a climbing scaffold with one or more working levels, which includes an anchoring unit with main brackets supporting at least one assisting mechanism that is integral with a formwork unit; the anchoring unit is anchored to a wall and additionally, a second level can be attached, which includes a telescopic structure supporting a safety net for falling objects. The climbing scaffold includes passage or work platforms with safety measures such as guardrails conveniently arranged, and furthermore, the climbing scaffold is primarily stiffened with transverse beams.

The invention relates to a climbing system (1) comprising a first anchoring shoe (17) intended to be fastened to an already erected first wall section (11). The climbing system (1) further comprises a climbing drive (18) comprising a first drive component (28) and a second drive component (27), wherein the first drive component (28) and the second drive component (27) are movable relative to one another. The climbing system (1) further comprises a work platform (3) intended to be fixed to the first drive component (28) of the climbing drive (18), and a climbing shoe (16) intended to be fixed to the second drive component (27) of the climbing drive (18). The climbing shoe (16) is designed to be fixed to the first anchoring shoe (17). The invention further relates to a method for moving such a climbing system.

The present invention discloses a highly integrated intelligent construction platform for use in the construction of a building's main structure. The platform comprises a Bailey frame and supporting columns. A cantilever support frame is connected below the supporting columns, which is connected to a support guide rail and a lifting mechanism. One end of the Bailey frame extends out of the building's main structure and is connected to a trolley crane. A material distributing machine, a top scaffolding board, a mobile house, a canopy, and a sprinkler system are integrated above the Bailey frame. A lifting material distributing platform is provided below the trolley crane. A construction elevator is provided on the side of the Bailey frame near the mobile house. The support guide rail and the lifting material distributing platform are both connected to a plurality of wall guide seats. A connecting frame is connected between a plurality of supporting columns on the same side. A plurality of groove-shaped structural members are provided on the side of the Bailey frame. The beneficial effects of the present invention are: achieving multi-functional high integration, greatly improving the working efficiency of the intelligent construction platform, reducing manual labor and the need for other external equipment, and achieving cost reduction and efficiency improvement; and convenient lifting and high safety.

The utility model relates to the technical field of lifting scaffolds, in particular to an attached lifting scaffold guide seat. A back shore frame is arranged on the base upwards, a back shore pin shaft is rotationally installed in the back shore frame, an unloading back shore is installed on the back shore pin shaft, an anti-falling pin shaft is rotationally installed in the base, an anti-falling swing block is arranged on the anti-falling pin shaft, torsional spring pin shafts are arranged on the two sides in the base respectively, and first torsional springs are arranged at the two ends of the anti-falling pin shaft respectively. Excitation teeth are arranged on the front side of the anti-falling swing block, a first limiting pin shaft is arranged at the position, located above the rear side of the anti-falling pin shaft, in the base, and reset structures are arranged on the two sides of the lower end of the anti-falling swing block correspondingly; according to the guide seat, the anti-falling swing block is designed, an excitation tooth and a reset structure are utilized, the anti-falling swing block is driven to automatically swing in the ascending process of the scaffold, and therefore when the scaffold falls, the anti-falling swing block can be automatically inserted into the ladder stop, falling stopping of the scaffold is achieved, and accidental injuries are prevented; the guide seat is provided with a reset structure, and flexible reset can be achieved in the swing process of the anti-falling swing block.

An expandable multifunctional integrated-construction skyscraper building platform and a construction method using the same are provided. The expandable multifunctional integrated- construction skyscraper building platform includes: a building foundation part, including an underground level, a basement level and a ground level which form a main body; an external frame part, a bottom of the external frame part being fixed deep into the underground level, and a top of the external frame part running through the basement level and the ground level to reach upper air such that lifting platform parts arranged on the external frame part are capable of going up from the underground level for construction; a transportation elevator part and a three-layer enclosure part, mounted on the building foundation part; a top transfer part, mounted on a Chinese character “Ri” frame at a top of the external frame part; and a carrying tower.

The invention relates to the field of building construction, in particular to a reverse supporting type roof riding beam hanging basket and a construction method.The reverse supporting type roof riding beam hanging basket comprises two sets of cantilever mechanisms arranged in parallel and an adjusting device, each cantilever mechanism comprises a cantilever support, a cantilever beam perpendicularly fixed to the cantilever support and a steel cable, and the steel cable is erected at the top of the cantilever support; the steel cables, the cantilever supports and the cantilever beams form a triangular structure, one end of each cantilever beam is provided with a hoisting pull rope, and the two groups of hoisting pull ropes are used for jointly hoisting a hanging basket; each adjusting device comprises a pre-embedded counterweight plate, an adjusting counterweight plate and a supporting beam, the pre-embedded counterweight plate and the adjusting counterweight plate are both formed by rotationally splicing and connecting a plurality of plate bodies, the upper surface of the adjusting counterweight plate is fixed to the bottom of the cantilever support, one end of the supporting beam is rotationally connected with the cantilever cross beam, and the other end of the supporting beam is fixed to the upper surface of the pre-embedded counterweight plate; the length of the supporting beam can be adjusted. Good adaptability to various building structures is achieved, and the stability and flexibility of hanging basket installation are improved.

A lightweight composite roofing support system comprises a longitudinally-extending core member comprising a longitudinally-extending first roof contact side comprising a first edge and opposed second edge, a longitudinally-extending second side comprising a second side working surface having a second width and a second length that is greater than the second width, the second side tapering toward the first edge at a first predetermined acute angle, and a longitudinally-extending third side comprising a third side working surface having a third width and a third length that is greater than the third width, the third side tapering toward the second edge at a second predetermined acute angle that is different than the first predetermined acute angle, a first end comprising an integral first recess defining a first handle, and an opposed second end comprising an integral second recess defining a second handle, the core member comprising a wedge-shaped lateral cross-section.

The utility model relates to the technical field of building construction devices, and discloses a hanging basket hovering platform which comprises a supporting column, a supporting plate and a fixing mechanism used for fixing the supporting column, the supporting plate is welded to the upper surface of the supporting column, and a fence and a baffle are fixedly connected to the upper surface of the supporting plate. The fence and one side of the baffle are fixedly connected to define a C shape, a connecting base is fixedly arranged on the outer side of the fence, and a pull rope is connected to the outer circle face of the connecting base. According to the hanging basket hovering platform provided by the utility model, through the guide plate and the guide wheels, the guide plate can push the hanging basket in the process of putting down the hanging basket, so that the hanging basket slides into a fence, the situation that the hanging basket deviates is reduced, the hanging basket is more smooth and vibrates during movement due to the arrangement of the guide wheels in a matched manner, and through the buffer mechanism arranged on the supporting plate, the hanging basket hovering platform is more convenient to use. In the descending process of the hanging basket, the buffer mechanism can reduce the impact of the hanging basket on the supporting plate.

The invention relates to the technical field of scaffolds, in particular to an attached climbing scaffold structure which comprises a wall-attached support, an anti-tilting device and a main frame. The wall-attached support is fixedly arranged on an outer wall of a building; the anti-tilting device comprises a fixing plate, a limiting wheel, a side plate and a positioning wheel, and the fixing plate is fixedly arranged on the wall-attached support; the limiting wheels are rotationally arranged on the fixing plate, the number of the limiting wheels is three, and the three limiting wheels are distributed in an isosceles triangle shape; the side plate is fixedly arranged on the fixed plate; by improving the structure of the attached climbing scaffold, the attached climbing scaffold has the advantages that the structural design is reasonable, the firmness of the wall-attached support is improved through the lifting hanging seat, the stability of the lifting hanging seat can be improved through the wall-attached support, the firmness and stability of the whole structure are improved, and the attached climbing scaffold is convenient to mount, dismount and operate; therefore, the problems and defects in the prior art and equipment are effectively solved.

A building assembly system for fabricating a multi-story building is described, wherein the building includes a vertical support core arranged on a base. Lift jacks are arranged between a top portion and a bottom portion of the vertical support core, and a reusable bridle is suspended from the plurality of lift jacks and slidably arranged on the vertical support core. A floor plate is assembled onto the bridle at an assembly level that is proximal to the base. The plurality of the lift jacks are operable to lift the bridle and the assembled floor plate to a design elevation on the vertical support core, and are operable to lower the bridle to the assembly level on the vertical support core after the floor plate has been secured to the vertical support core at the design elevation.

The connecting device for supporting the high-altitude cantilever structure comprises a cantilever supporting column and a supporting cantilever beam, an embedded supporting frame is embedded in the cantilever supporting column, and a rotating supporting base fixedly connected with the embedded supporting frame in the cantilever supporting column is arranged on the front side face of the cantilever supporting column; the front side face of the overhanging supporting column is further provided with a vertically-extending mounting groove, and the mounting groove is located on the lower side of the rotating supporting base. The connecting device for supporting the high-altitude overhanging structure is stable in structure and high in safety. The cantilever supporting structure has the advantages that the embedded supporting frame is embedded in the cantilever supporting column, the rotating supporting base is fixed to the embedded supporting frame, the rotating supporting base is connected with the outer end of the supporting cantilever beam in a pulling mode through the supporting rod, the inner end of the supporting cantilever beam abuts against the outer wall of the cantilever supporting column in a pressing mode, and a stable triangular structure can be formed; the connecting strength of the supporting cantilever beam is improved, the stress area is increased, and the situation of deformation or fracture is prevented.

The control system of the tower building machine for tower building comprises a plurality of supporting frame bodies embedded underground and a building platform, the supporting frame bodies are fixed to the surface of a tower through wall attaching pieces in the tower building process, climbing devices are arranged on all the supporting frame bodies, the building platform is of an annular structure, and the supporting frame bodies are fixed to the surface of the tower through the wall attaching pieces. The building platform is installed on the climbing devices so as to be driven by the climbing devices to ascend and descend along the supporting frame body, the building platform comprises an operation platform and a fixing support, the fixing support is connected with the climbing devices, a lifting device is arranged at the side end of the fixing support so that building materials can be hoisted through the lifting device, and the operation platform is installed at the top of the fixing support. A plurality of extension platform assemblies are arranged around one end, close to the control tower, of the fixed bracket; the extension table is driven by the telescopic cylinder to achieve horizontal adjustment, the extension table can be matched with continuous changes of the outer diameter of the control tower by combining dynamic compensation of the extension plate, and a continuous platform for workers to operate is formed through automatic adjustment.

The invention discloses a construction method of a cantilever formwork system device and a fine-adjustable cantilever formwork system device. The construction method of the cantilever formwork system device comprises the following steps that A, a tripod operation platform is installed; b, a formwork system is assembled; c, a vertical main back ridge, a fine adjustment device, an adjustable triangular support, an adjusting base and a movable scaffold with trundles are installed and fixed to the tripod operation platform; d, the frame body comprising the tripod operation platform is integrally hoisted and hung and buckled on an embedded part in lower layer structure concrete; e, the reserved structure space is enlarged through a fine adjustment device, and the tripod operation platform and the movable scaffold with the trundles are used as platform binding structural steel bars; and F, after steel bars are bound, the formwork system assembled in the step B is hoisted in place, the formwork system is adjusted to the designed structural size position through a fine adjustment device, and structural concrete is corrected and poured.

A formwork system for a bridge pier configured to support loads associated with bridge pier construction with reduced, or being free of, anchors in the column.

The utility model relates to the technical field of hanging basket frames, and discloses a construction hanging basket frame which comprises a bottom plate, stand columns are fixedly installed at the four corners of the top of the bottom plate, a fixing rod is fixedly installed between every two adjacent stand columns, and a plurality of protective fences are fixedly installed between the fixing rods and the bottom plate at equal intervals. A hydraulic cylinder is arranged in the middle of the bottom plate, the output end of the hydraulic cylinder is fixedly connected with a supporting plate, the supporting plate is arranged among the multiple stand columns in a sliding mode, and the protective fence penetrates through the supporting plate. The mounting groove is formed in the bottom plate, the hydraulic cylinder and the supporting plate are arranged in a matched mode, the hydraulic cylinder can drive the supporting plate to move up and down by starting the hydraulic cylinder, the distance between the supporting plate and the fixing rod can be adjusted, and therefore the protection effect on constructors of different heights is improved; the influence on the construction operation of constructors is avoided, and the practicability of the device is improved.

The invention belongs to the technical field of building construction, and discloses a multilayer net rack integral lifting construction method which comprises the following steps: integrally splicing a roof net rack on the ground in situ; a plurality of concrete columns are arranged along the periphery of the roof net rack at intervals, a lifting support is installed at the top of each of a part of the concrete columns to serve as an upper lifting point for lifting, and a hydraulic press is installed on each lifting support; each lower lifting point on the roof net rack is connected to each hydraulic press, and the whole roof net rack is locally lifted to a preset mounting height; dividing the riding track into a plurality of riding track mounting unit blocks, and connecting the upper end of each riding track mounting unit block with a node ball at a corresponding ball node at the mounting position of the riding track of the roof net rack until the whole riding track is mounted; and then the roof net rack and the riding track are integrally lifted to the designed height. The construction efficiency can be improved, the construction precision is guaranteed, the construction safety risk is reduced, and the method is suitable for application and popularization.

The invention relates to a high-altitude operation sliding platform for photovoltaic installation construction, and belongs to the technical field of construction platforms. Comprising a plurality of photovoltaic support stand columns, photovoltaic frames used for installing photovoltaic panels are fixedly arranged at the upper ends of the photovoltaic support stand columns, steel stranded ropes are fixedly arranged among all the photovoltaic frames, two sets of walking mechanisms are arranged on the steel stranded ropes, and each set of walking mechanism comprises a supporting base and two sets of walking assemblies arranged on the supporting base. The walking assembly comprises a driving wheel and a supporting wheel which slide relatively, the supporting wheel and the driving wheel are located on the upper side and the lower side of the steel strand rope respectively, a lifting mechanism is arranged at the lower end of each supporting seat, and the lower ends of the two lifting mechanisms are jointly connected with a hanging basket platform. The problems that an existing combined scaffold for high-altitude photovoltaic panel installation is difficult to build and move under the condition that the ground is uneven, the frequent moving efficiency is low, and the combined scaffold is not suitable for the rapid installation requirement of large-area high-altitude photovoltaic panels are solved.

The utility model discloses a hanging basket suspension device for curtain wall construction, and belongs to the technical field of curtain wall construction. The protection device is novel in design and ingenious, by arranging the protection mechanism, the steel pipes and the dense-mesh net, correspondingly installing the steel pipes on the handrail frame and installing the dense-mesh net between the two steel pipes, it is guaranteed that the body of a worker is not prone to inclining to the outer side of the hanging basket in the curtain wall construction period, and safety is greatly improved to a certain degree; a layer of lubricating oil is smeared in the limiting auxiliary ring, so that the steel wire rope has extremely high flexibility in the using process, the problems of unsmooth sliding and the like caused by blocking, rusting and the like are not prone to occurring, the steel wire rope exposed outside can be protected by arranging the warning mechanism, the sleeve and the warning board, and the warning board can warn not to be close to the steel wire rope. And the snakeskin hose is arranged at the part close to the handrail frame in a sleeving manner and is used for preventing the steel wire rope from generating friction with the handrail frame.