Patents
Literature
129 results about "Fixed ladder" patented technology
Efficacy Topic
Property
Owner
Technical Advancement
Application Domain
Technology Topic
Technology Field Word
Patent Country/Region
Patent Type
Patent Status
Application Year
Inventor
A fixed ladder is a vertical ladder mounted permanently to a structure. These ladders are primarily used to access roofs or other structures for industrial purposes. In the United States, these ladders are covered by OSHA and ANSI standards.
Boat trailer ladder with auto-close mechanism and side extension
A ladder assembly for mounting to a boat trailer comprising a stationary ladder section with a plurality of steps and a stair extension portion comprising one or more steps. The stair extension portion is rotatably coupled to the stationary ladder section and a mechanism for actuation of automatic rotation of the stair extension portion for deploying and / or stowing the stair extension with respect to the stationary ladder section is provided at an upper end of the ladder assembly so that the ladder extension can be stowed when a user is at or near the top of the ladder. A boat trailer mounting assembly couples the ladder assembly to the boat trailer and a stair extension rotation control mechanism controls at least one of a speed and actuation of deploying or stowing of the stair extension portion.
Owner:QUALITY MARK
Advanced Roof Platform
A portable, handheld system designed for anchoring and securing ladders, pump jack scaffolding, and walkways on pitched roofs or inclined surfaces. The invention includes three platform configurations, each with a variable pitch adjustment for leveling across multiple roof angles: (1) a ladder stop platform equipped with a 360-degree stop mechanism for multi-directional ladder stabilization; (2) a pump jack platform that provides a stable base for supporting pump jack systems and scaffolding; and (3) a walkway platform configured with parallel plank attachment bars and integrated guardrails for safe foot traffic. Each platform features anchor beds for secure attachment to structural elements like roof trusses and reinforced lateral rib members for uniform load distribution, enhancing structural integrity and load-bearing capacity across the system.
Owner:MASTALIR MICHAEL JAMES +1
Steel bar conveying device
The invention relates to the technical field of circulating conveying equipment, and particularly discloses a steel bar conveying device which comprises a rack and a conveying mechanism, the rack is further provided with a lifting mechanism, the lifting mechanism comprises a plurality of lifting assemblies and a driving assembly, and the lifting assemblies are arranged at intervals in the horizontal direction; the lifting assembly comprises stepped fixed steps and movable steps, the driving assembly drives all the movable steps to synchronously ascend and descend, and the heights of the steps on the same layer of all the movable steps are increased from the middle to the two sides; the lifting assembly located in the middle serves as a first lifting assembly, the first lifting assembly comprises first fixed steps and first movable steps, the width of the lowermost step of each first movable step is larger than that of the lowermost step of each first movable step, and each layer of step of each first fixed step is provided with a limiting piece. The limiting piece and the first fixing step are rotationally matched and connected through an elastic piece. According to the conveying device, the working efficiency and stability of steel bar upward moving conveying operation are improved.
Owner:POLY CHANGDA ENGINEERING CO LTD
Hybrid material rolling ladder with lift assist lockstep and gas spring casters
A bushing guided caster assembly for a hybrid material ladder. The caster assembly has an outer housing in which an inner tubular slide slides within the outer housing on bushings. A caster is attached to the inner slide. A gas spring is formed in the inner tubular slide such that the inner slide slides up within the housing as an increasing force is applied downwardly on the housing until the inner tubular slide has traveled a preselected distance until the fixed ladder feet contact the floor or surface upon which the ladder is supported.
Owner:BALLYMORE CO INC
Adjustable boarding ladder
The invention provides an adjustable boarding ladder, and relates to the technical field of marine equipment, the adjustable boarding ladder comprises a frame body structure and a support column structure, the support column structure comprises a support cylinder and a movable column, and a rotation control device is arranged at the joint of the support cylinder and the movable column; the frame body structure comprises a first platform and a second platform, a movable ladder assembly is arranged on one side of the first platform, and a lifting piece used for controlling the movable ladder assembly to rise and fall is arranged at the upper end of a movable column; a fixed ladder assembly is arranged on one side of the second platform, a climbing channel is arranged between the first platform and the second platform, an escape channel is arranged below the second platform, and a pawl limiting device is arranged on the outer side of the supporting cylinder, arranged between the first platform and the second platform and used for limiting rotation of the movable column so that escape can be conducted safely. The boarding ladder is of a double-layer structure, the first platform is communicated with the second platform through the climbing channel, and when congestion occurs on the second platform, people can be divided through the escape channel, so that the occurrence of trampling conditions can be effectively reduced.
Owner:LIANYUNGANG BUSHENG MACHINERY
Roadway drainage pipeline leakage online monitoring device
The utility model discloses a roadway drainage pipeline water leakage on -line monitoring devices relates to monitoring device technical field, including setting in the mounting bracket of groove upper end still include: swing rod sensor, set in mounting bracket upper end, elastic card piece, set in the fixed ladder type bottom plate of groove inboard upper end, when the water flow of groove inboard has the flow, the water flow extrusion is connected on the V type tab of ladder type bottom plate upper end, and V type tab pushes its front end fixed extrusion rod, and extrusion rod extrusion pushes elastic card piece and the water baffle bottom part of swing rod sensor one side set swing rod lower end and separates, and then through the water baffle drive swing rod sensor rotates to make sensor transmission signal alarm, and the device can detect the water leakage condition fast and accurately, and timely sends out the alarm signal, and lets the maintenance personnel know and handles the problem in the first time, and effectively avoids the problem such as roadway ponding caused by not finding in time because of water leakage.
Owner:SHANXI SHUOZHOU SHANYIN GOLD OCEAN WATER SPRING COAL CO LTD
Automatic nail feeding device for automobile production line
The utility model relates to the technical field of automobile production equipment, in particular to an automatic nail feeding device for an automobile production line. According to the technical scheme, the automatic nail feeding device comprises a stepped nail feeding machine, a plurality of movable stepped plates and a plurality of fixed stepped plates which are arranged in the stepped nail feeding machine in a staggered mode and further comprises a feeding bin formed in the stepped nail feeding machine, and an adjusting baffle is slidably connected to the interior of the feeding bin; and a step mechanism is arranged at one end, close to the movable step plate and the fixed step plate, of the adjusting baffle. The adjusting baffle, the telescopic mechanism and the sliding mechanism are matched, the hand-cranking handle is rotated to drive the screw rod to drive the adjusting baffle to move horizontally, the step plate is clamped through the step mechanism, the telescopic elastic rod abuts against the step plate, and the using length of the step plate can be adjusted according to the length of a screw. In this way, the problem that a fixed-length step plate is poor in adaptability is solved, long screws are prevented from being stuck, short screws are prevented from laterally turning and sliding out, conveying interruption is reduced, and the screw conveying efficiency is improved.
Owner:SHANGHAI YILOU AUTOMATION ENG CO LTD
Fixed ladder assembly for fire fighting truck roof
The utility model discloses a fire fighting truck roof fixing ladder assembly, and particularly relates to the technical field of fire fighting equipment, the fire fighting truck roof fixing ladder assembly comprises two installation supports, rollers are slidably installed at the ends, close to each other, of the two installation supports, a wheel shaft is jointly arranged between the two rollers, ladder assembly fixing supports are fixed at the lower ends of the two installation supports, and the ladder assembly fixing supports are fixedly arranged on the ladder assembly fixing supports. A fixed baffle hinge is fixed to the upper end of the mounting support on the left side, a U-shaped lower support is rotatably mounted at the upper end of the fixed baffle hinge, a hasp is fixed to the front end of the mounting support on the right side, and vertically-arranged clamping plates are fixed to the front end and the rear end of the lower support correspondingly. According to the fixed ladder assembly for the fire fighting truck roof, the upper support, the lower support and the hasps are matched with one another, so that different types of fire ladders can be conveniently placed when the fixed ladder assembly is used, the fixed ladder assembly is more stable when being used due to the design of the clamping plates, and meanwhile, the fire ladders can be conveniently and rapidly taken and placed.
Owner:RUNTAI RESCUE EQUIP TECH HEBEI CO LTD
Multifunctional insulating ladder
The utility model discloses a multifunctional insulating ladder which comprises a fixed ladder which comprises two first longitudinal beams and a plurality of first cross beams fixed between the two first longitudinal beams; the top end of the rotating ladder is rotationally connected with the fixed ladder, the rotating axis of the rotating ladder is parallel to the first cross beams, the rotating ladder at least has a first state parallel to the fixed ladder and a second state forming a set angle with the fixed ladder in the rotating process, and the rotating ladder comprises two second longitudinal beams and a plurality of second cross beams fixed between the two second longitudinal beams; the extension ladder is connected to the fixed ladder and parallel to the fixed ladder, the position of the extension ladder can be adjusted in the length direction of the fixed ladder, the extension ladder can extend out of the top end of the fixed ladder in the adjusting process, and the extension ladder comprises two third longitudinal beams and a plurality of third cross beams fixed between the two third longitudinal beams. The multifunctional insulating ladder disclosed by the embodiment of the utility model can meet various use requirements.
Owner:CHINA ENERGY CONSTR GRP HUAZHONG ELECTRIC POWER TEST & RES INST CO LTD
elevating platform
This utility model discloses a lifting platform, including a fixed ladder and a base. The fixed ladder is welded to the upper surface of the base, and a sliding ladder is slidably connected to the outside of the fixed ladder. Slide grooves are formed in the support rods on both sides of the sliding ladder, and sliding rods with sliding rollers are provided on both sides of the sliding ladder. A transmission mechanism is provided on both sides of the fixed ladder, and the transmission mechanism includes several guide wheels set on the slide grooves. A steel wire rope is placed in the grooves of the guide wheels. A lifting mechanism is provided on the upper surface of the base, located below the sliding ladder, with one end of the steel wire rope fixed to the lifting mechanism. This utility model, by setting up a lifting mechanism, allows the lifting platform to slide smoothly within the slide grooves using the sliding rollers on the slide rods. Combined with the steel wire rope and guide wheels in the transmission mechanism, and the lifting mechanism itself, this achieves smoother lifting and lowering of the work platform, making the lifting process smoother and more stable. It effectively avoids shaking and jamming, greatly improving work efficiency.
Owner:TIANJIN DEV AREA XINGHENG PETROLEUM MASCH ACCESSORIES CO LTD
Hanging folding ladder for hanging wall
The utility model discloses a hanging folding ladder for hanging a wall, which comprises a pair of L-shaped supports arranged in parallel at intervals, each support comprises a wall connecting section extending horizontally and an extending part connecting section extending vertically, one end of each wall connecting section is connected with a cantilever wall, and one end of each extending part connecting section is connected with an extending part of the cantilever wall; the limiting groove is formed in the wall connecting section; the folding ladder comprises a main ladder section and an auxiliary ladder section which are connected through a hinge, and a bearing cross rod at the top of the main ladder section is hung on the wall connecting section in a sliding mode and can fall into the limiting groove along the wall connecting section in a sliding mode. The ladder can be installed at a fixed position, the problems that the ladder is privately moved and cannot be found in emergency situations are solved, the ladder can be folded and lean against the wall at the fixed position, the occupied space is reduced, and the problem that a traditional fixed inclined ladder occupies a channel and a goods area is solved.
Owner:TIANNENG GRP JIANGSU SPECIAL POWER SUPPLY
Construction frame for indoor decoration
The utility model discloses a scaffold for indoor decoration, and relates to the technical field of indoor decoration. The device comprises a fixing frame, two sides of the fixing frame are rotatably matched with fixing ladders, the lower sides of the two fixing ladders are slidably matched with extension ladders, cushion blocks are arranged at the bottoms of the extension ladders, adjusting assemblies are arranged between the fixing frame and the cushion blocks on the two sides, and storage boxes are installed on the outer side edges of the fixing frame and the two extension ladders. The height of the scaffold can be conveniently and rapidly adjusted through the adjusting assembly, different decoration height requirements are met, the fixed ladders on the two sides of the fixed frame can be rotationally unfolded around the fixed rods, the extension ladders can be slidably unfolded on the lower sides of the fixed ladders, the bottoms of the extension ladders are supported through cushion blocks, and unfolding of the scaffold is completed. After construction is finished, the extension ladder can slide back into the fixed ladder, the fixed ladder rotates around the fixed rod to be folded, storage is convenient, the storage box is installed on the outer side edge of the scaffold, and constructors can conveniently take and place tools and materials at any time.
Owner:SICHUAN SHENGXINYUAN CONSTRUCTION ENGINEERING CO LTD
Folding step ladder
The utility model relates to a folding type pedal ladder, it includes fixed ladder, fixed block, movable ladder, special-shaped pin shaft and baffle, is fixed with fixed block respectively in the top rear side of two vertical rods of fixed ladder, has the foldable movable ladder through special-shaped pin shaft swing joint in the middle part of fixed ladder, is fixed with baffle respectively vertically in the both sides of the bottom of fixed ladder behind movable ladder, when movable ladder unfolds, the board surface of movable ladder and baffle abuts, is opened in the top of two vertical rods of fixed ladder along the left and right direction respectively and is passed through and has been connected the slot, two joint slots are opposite settings, when movable ladder is completely folded, the crosspiece of movable ladder is placed in the joint slot.
Owner:INNER MONGOLIA AUTONOMOUS REGION TOBACCO CO ERDOS CO
Safety roof hatch system
A system is provided for safe access to a roof through an opening in a roof of a structure having a fixed ladder leading upward to the opening. The system includes a mechanism to drive a set of pushrods to raise a hatch covering the opening. The system may include a section of ladder secured to the underside of the hatch. The system may have an extendable ladder driven by the drive mechanism to slide along the fixed ladder and extend through the opening in the roof when the hatch is raised. The system may include a safety pole driven by the drive mechanism to extend through the opening in the roof when the hatch is raised. The system allows someone who needs to access the roof for inspection or maintenance to safely open the hatch, climb up through the opening in the roof, and safely step onto the roof.
Owner:ROGERS III JOSEPH O
Turnover device for production of facing ecological board
ActiveCN222453607Uensure safetyIncrease functional diversityConveyorsUsing optical meansAnimal scienceFixed ladder
Owner:LINYI TONGJIA WOOD IND CO LTD
Test tube feeding device and pipeline sample transmission system
The present invention discloses a test tube loading device and an assembly line sample conveying system. The test tube loading device includes: a frame and a pushing mechanism, the pushing mechanism includes a plurality of fixed ladders, a pushing assembly and a driving mechanism; the plurality of fixed ladders are mounted on the frame in a stepped manner; the pushing assembly includes a bracket and a plurality of movable ladders, the plurality of movable ladders are arranged one by one on a side of the plurality of fixed ladders facing away from the frame; the driving mechanism is driven and connected to the bracket; a guide structure is provided on a side of a movable ladder facing a fixed ladder, and the guide structure generates a lateral component force on the test tube, so that the test tube is placed horizontally on the top of the fixed ladder after being tilted. The technical solution of the present invention can make the test tube be placed horizontally on the top of the fixed ladder after being tilted, so as to meet the standard feeding requirements.
Owner:ZYBIO INC
Telescopic ladder stand
The utility model belongs to a ladder stand device in constructional engineering, and particularly relates to a telescopic ladder stand which comprises a fixed ladder fixed on the upper portion of a structure, the fixed ladder is composed of a plurality of ladder steps, a telescopic ladder is arranged on the outer sides of the ladder steps, the telescopic ladder comprises a sliding rail and ladder plates, the sliding rail adopts two U-shaped steel channels, notches of the U-shaped steel channels are oppositely arranged, and the U-shaped steel channels are fixedly connected to the two sides of the outer ends of the ladder steps; the ladder plate comprises two stand columns, the two stand columns are connected through a plurality of step beams, and the stand columns are installed in the U-shaped channel steel in a sliding mode; a plurality of grooves are symmetrically formed in the side outer wall of the stand column, each groove is provided with a deepest point, and the deepest points and the outer wall of the stand column are in inclined plane connection; a roller assembly is arranged on the outer side of the groove and fixedly connected with the sliding rail through an elastic mounting seat, and a roller is clamped in the groove through a spring to play a role in preventing the extension ladder from falling.
Owner:CHINA MCC22 GROUP CORP LTD
Emergency evacuation device for a wave-compensated gangway
An emergency evacuation device of a wave-compensated gangway comprises a first horizontal moving frame, a second horizontal moving frame and a fixed truss, one end of the first horizontal moving frame and one end of the second horizontal moving frame can slide up and down along the fixed ladder end support, the other end of the first horizontal moving frame is sleeved with a first sliding block, the first sliding block can slide along the axial direction of the first horizontal moving frame, the other end of the second horizontal moving frame is sleeved with a second sliding block, the second sliding block can slide along the axial direction of the second horizontal moving frame, the first sliding block and the second sliding block are fixed on the wave-compensated gangway, the two ends of the fixed truss are connected with the first horizontal moving frame and the second horizontal moving frame respectively, a movable truss is arranged between the fixed truss and the wave-compensated gangway, and the end of the movable truss is connected with the first horizontal moving frame through a hinge. The design can reliably connect the ladder and the wave-compensated gangway, and ensure that the operating personnel can evacuate from the wave-compensated gangway in the case of wave-compensated gangway failure.
Owner:WUHAN MARINE MACHINERY PLANT
Multifunctional ladder trolley for maintenance of rail transit overhead line system
The invention relates to the technical field of rail transit maintenance equipment, in particular to a multifunctional ladder truck for maintenance of a rail transit overhead line system. According to the technical scheme, the working platform comprises a movable base, a fixed ladder assembly, a main working platform and telescopic ladder assemblies, the fixed ladder assembly is fixedly arranged on the movable base, the main working platform is fixedly arranged at the top of the fixed ladder assembly, the telescopic ladder assemblies are divided into two pieces and are connected to the two sides of the fixed ladder assembly in a sliding mode, and the two pieces of telescopic ladder assemblies are connected through telescopic ladder assembly supporting rods. The device has the beneficial effects that the telescopic ladder assembly arranged on the fixed ladder assembly can be used for super-high-altitude maintenance operation above a contact line; the telescopic ladder assembly adopts a two-stage telescopic ladder assembly and can quickly complete telescopic fixation, so that the height of the ladder trolley can be quickly changed in the maintenance process for corresponding maintenance or movement; the anti-toppling device is arranged on the movable base, and the retractable extension supporting legs are further arranged on the fixed ladder frame, so that the stability of the ladder truck can be improved during work overhaul, and the safety of overhaul work is improved.
Owner:李占斌
Powder container for a powder vortex mixer
The utility model relates to a kind of powder holding device for powder vortex mixing instrument. Including powder holding device main part, in the bottom welding fixed of powder holding device main part, it is equipped with spiral ladder flow guide plate combination, spiral ladder flow guide plate combination is composed of two flow guide plates and two ladder plates, two flow guide plates are fan shape, the center of two flow guide plates is welded connection, two flow guide plates are inclined arrangement and the opposite direction of inclination, the radial side of high position end of first flow guide plate and the radial side of low position end of second flow guide plate between welding fixed ladder plate, the radial side of low position end of first flow guide plate and the radial side of high position end of second flow guide plate between welding fixed ladder plate. Solve the phenomenon that material single rotation only surface mixing, layering is serious when traditional vortex mixing instrument mixes powder material.
Owner:CENTRAL GRAIN RESERVE SIPING DIRECT STORAGE CO LTD
A kind of follow-up aircraft maintenance lifting work ladder with self-locking device
ActiveCN112031636BShorten deployment and dismantling timeeasy to operateLaddersFixed ladderControl theory
The present invention provides a follow-up aircraft maintenance and lifting work ladder with a self-locking device, which includes a fixed ladder structure located at the bottom, a quadrilateral mechanism is hinged at the top of the fixed ladder structure, a top ladder structure is hingedly supported at the top of the quadrilateral structure, a follow-up climbing ladder structure is installed on the quadrilateral structure, the follow-up climbing ladder structure connects the fixed body structure and the top ladder structure, a linked traction stop mechanism for supporting and stopping the entire work ladder is fixedly installed at the head of the fixed ladder structure, and a lifting mechanism for driving the top ladder structure to rise and fall is installed between the linked traction stop mechanism and the top ladder structure. This work ladder structurally divides the climbing ladder into two sections: a fixed ladder and a follow-up movable ladder, and uses the principle that the opposite sides of the regular parallelogram mechanism are always kept parallel during the movement process to realize the horizontal parallel follow-up of the movable ladder pedal and the work surface during the ladder lifting process.
Owner:凌云(宜昌)航空装备工程有限公司 +1
Slipping type escape ladder, using method thereof and engineering machinery
The invention discloses a sliding type escape ladder, a using method thereof and engineering machinery. The sliding type escape ladder comprises a fixed ladder, a slide, an operating rod and a blocking component, the fixed ladder is mounted around the cab; the slide is mounted on the fixed ladder and can slide up and down in the fixed ladder; the operating rod is configured to lock and unlock the fixed ladder and the slide; the operating rod comprises a first connecting piece and a second connecting piece. The first connecting piece is divided into a first fixing part, a second fixing part and a third fixing part. And the blocking component is configured to limit and release the limit of the third fixing component, and when the third fixing component is limited, the rotation of the operating rod is blocked, so that the second fixing component and the butt joint component are always in a locking state. According to the sliding type escape ladder provided by the invention, the sliding ladder is locked by utilizing the self weight of the ladder, and the locking function is safe and reliable; during emergency escape, the escape ladder can be unlocked and put down only through one-step operation, and the escape time is greatly shortened.
Owner:XUZHOU XCMG MINING MACHINERY CO LTD
Ladder cage prefabricated foundation
ActiveCN224259435Uno pollutionfast installationFoundation engineeringFixed ladderArchitectural engineering
The utility model provides a ladder cage prefabricated foundation which comprises a concrete prefabricated slab, and the concrete prefabricated slab is provided with a foundation fixing structure used for fixing the concrete prefabricated slab on the ground and a ladder cage fixing structure used for fixing a ladder cage on the concrete prefabricated slab. The elevator cage connecting structure comprises a metal connecting block used for being welded to the elevator cage body and an elevator cage connecting threaded column poured on the concrete prefabricated plate, and the elevator cage connecting threaded column penetrates through the metal connecting block and then is in threaded connection with an elevator cage connecting nut so that the metal connecting block can be fixed to the concrete prefabricated plate. The utility model aims to provide the removable ladder cage prefabricated foundation for fixing the ladder cage, and solves the problems that the installation speed is slow and waste pollution is generated as the foundation needs to be manufactured on site when the existing ladder cage is used.
Owner:ZHEJIANG COMM CONSTR GRP CO LTD +1
Feeding machine capable of automatically distributing materials
The utility model relates to the field of bar feeding, and discloses an automatic distributing feeder which comprises a bar box, the bottom of the front side wall of the bar box is fixedly communicated with a conveying channel, and the bottom of the bar box and the bottom of the conveying channel incline forwards and downwards. Supporting legs are fixedly connected to the two corners of the bottom of the rear side of the bar box and the two corners of the bottom of the front side of the conveying channel, the upper portion and the lower portion of the front portion of the conveying channel are open, two fixed ladder plates are fixedly connected between the rear end of the bottom opening and the front end of the top opening of the conveying channel and distributed in a left-right spaced mode, and sliding grooves are formed in the front side and the rear side of the outer wall of each fixed ladder plate. A lifting ladder is arranged between the two fixed ladder plates, the left side and the right side of the lifting ladder are in sliding fit with the two fixed ladder plates, the left side wall and the right side wall of the lifting ladder are each fixedly connected with two fixed shafts, and the four fixed shafts are located in the four sliding grooves correspondingly. The lifting ladder is driven by the air cylinder to move up and down in a reciprocating mode, and therefore automatic distribution and feeding of bars are achieved.
Owner:DALIAN TONGREN METAL TECH CO LTD
Hidden type automobile container climbing device
The utility model relates to the technical field of climbing instruments, in particular to a concealable automobile container climbing device which comprises a fixed ladder, shells are fixedly connected to the two sides of the fixed ladder, top covers are fixedly arranged at the upper ends of the shells, movable ladders are movably arranged in the shells, transmission parts are arranged in the shells, and the movable ladders are fixedly connected with the transmission parts. The movable ladder is fixedly installed on the transmission part, the transmission part drives the movable ladder to move up and down when moving, in the hidden type automobile container climbing device, the transmission part is arranged, the movable ladder is fixedly installed on the transmission part, the transmission part drives the movable ladder to move up and down synchronously when moving, and the transmission part comprises a chain and chain wheels at the two ends of the chain. The motor drives the chain wheel to rotate and drives the chain to drive the movable ladder to ascend and descend, so that the movable ladder is put down for use or hidden for storage.
Owner:QINGDAO CIMC REEFER TRAILER
Adjustable boarding ladder
The application provides an adjustable boarding ladder, and relates to the technical field of marine equipment, which comprises a frame structure and a support column structure, the support column structure comprises a support cylinder and a movable column, and a rotary control device is arranged at the connection between the support cylinder and the movable column; the frame structure comprises a first platform and a second platform, one side of the first platform is provided with a movable ladder frame, the upper end of the movable column is provided with a lifting piece for controlling the lifting and falling of the movable ladder frame; one side of the second platform is provided with a fixed ladder frame, a climbing channel is arranged between the first platform and the second platform, an escape channel is arranged below the second platform, a pawl limiting device is arranged outside the support cylinder and between the first platform and the second platform, and the pawl limiting device is used for limiting the rotation of the movable column to ensure the safety of escape; the boarding ladder adopts a double-layer structure, the first platform is communicated with the second platform through the climbing channel, when congestion occurs on the second platform, personnel can be distributed through the escape channel, and the occurrence of trampling can be effectively reduced.
Owner:LIANYUNGANG BUSHENG MACHINERY
Sliding ladder stand adaptive to multiple working conditions
The invention discloses a sliding ladder stand adaptive to multiple working conditions. The sliding ladder stand comprises a fixed ladder fixed to a mechanical equipment rack and a movable ladder arranged on the fixed ladder. Clamping grooves with different heights are formed in the movable ladder, and the length of the movable ladder downwards extending out of the bottom of the movable ladder is adjusted by clamping the movable ladder in the clamping grooves with different heights. The passing performance of machine construction is improved, and the user can get on and off the vehicle conveniently.
Owner:XCMG CONSTRUCTION MACHINERY CO LTD ROAD MACHINERY BRANCH
A multifunctional ladder for construction
ActiveCN114856407BBase supporting structuresBraking devices for hoisting equipmentsFixed ladderControl theory
The present invention discloses a multifunctional ladder for construction, and relates to the technical field of construction tools. It includes a fixed ladder frame and a sliding ladder frame; the fixed ladder frame includes a left column, a right column and a fixed pedal; a heavy object lifting device is slidably arranged between the left column and the right column; a plurality of hinged ears are arranged on the front of the left column, and a movable pedal is hingedly arranged on the hinged ears; a plurality of latch seats are arranged on the front of the right column; the free end of the movable pedal is inserted in the latch seat; a winch is arranged on the right column; the sliding ladder frame includes a left leg, a right leg and a support beam; the left leg and the right leg are respectively slidably inserted in the left column and the right column, and a lifting device is fixedly arranged on the support beam; the top of the lifting device is connected to the fixed pedal of the lowest layer. The present invention can not only enable workers to climb high, but also enable heavy objects to be lifted, and has dual functions; it is simple to operate and easy to carry; and the heavy object lifting device has an anti-falling function, which improves the safety of the operation.
Owner:HEBEI CONSTRUCTION GROUP CO LTD
Ladder and working machine
The utility model relates to the technical field of mechanical equipment, and discloses a ladder and an operation machine. The ladder comprises a fixed ladder, a turnover ladder and a hinge assembly; a concave part is formed on the fixed ladder stand; the overturning ladder stand is used for being switched between an overturning state and an unfolding state, and in the overturning state, the overturning ladder stand abuts against the sunken part; in the unfolding state, the overturning ladder stand is separated from the sunken part; the hinge assembly comprises a hinge piece and a hinge hole. One of the fixed ladder stand and the turnover ladder stand is provided with a hinge hole, and the other one is connected with the hinge piece; the hinging piece and the hinging hole are rotationally matched in the first direction, so that the overturning ladder stand is switched between an overturning state and an unfolding state; the hinge piece and the hinge hole are in sliding fit in the climbing direction, so that the overturning ladder stand abuts against or is separated from the sunken part, and the climbing direction intersects with the first direction. The ladder can solve the problems that the distance between the ladder and the ground cannot be shortened when needed and the safe distance between the ladder and the ground cannot be kept when not needed in the prior art.
Owner:SANY HEAVY EQUIP CO LTD
Ladder for indoor decoration
The utility model relates to the technical field of decoration auxiliary tools, in particular to a ladder for indoor decoration, which comprises a fixed ladder, the upper end of the fixed ladder is slidably connected with a lengthened ladder, one side of the upper end of the lengthened ladder is fixedly connected with a protective fence, and two sides of the lower end of the fixed ladder are rotatably connected with rotating rods. An adjusting bolt is fixedly connected to the middle of the rotating rod, the rotating rod is slidably connected to the outer portion of the adjusting bolt, a sliding groove is formed in the middle of the rotating rod, a plurality of clamping holes are evenly formed in the upper end of the sliding groove at intervals, and the end, away from the adjusting bolt, of the rotating rod is rotatably connected with the fixed ladder. And cross rods are fixedly connected to two sides of the lower end of the fixed ladder. The decorative escalator can effectively solve the problems that in the prior art, the length of the decorative escalator is difficult to adjust, and the stability is difficult to guarantee in the using process.
Owner:SHANGHAI YAOMING CONSTR ENG CO LTD