3318 results about "Caster" patented technology

A folding cart having a frame and casters mounted at the bottom of the frame. The frame having a plurality of pillars, a plurality of pairs of bottom folding frames hinged to the pillars, and a plurality of pairs of transverse folding frames and longitudinal folding frames hinged between the pillars, such that four sides of the folding cart can be folded. Fixing blocks are mounted at top ends of the pillars, slidable sliders are arranged on the pillars, lower ends of outer sides of the transverse folding frames and the longitudinal folding frames are hinged to the sliders, upper ends of the outer sides of the transverse folding frames and the longitudinal folding frames are hinged to the fixing blocks, and the sliders slide to drive the transverse folding frames and the longitudinal folding frames to be folded or unfolded.

A convertible stroller is provided that includes a shell configured to support an infant. A pair of rear legs are pivotally coupled to the shell and a pair of front legs are pivotally coupled to a respective rear leg. The rear legs and the front legs are retractable to a first transport condition, and deployable away from the shell to a second transport condition usable as a stroller. A front wheel may be coupled to each front leg that is rotatable about a horizontal axle in the second transport condition. Each front wheel has a post that acts as an axis of rotation in the second transport condition. A cam sleeve is provided that is movably disposed on each post. In a first position, the cam sleeve allows rotation about the axis of rotation, and in the second transport condition prevents rotation of the front wheel about the axis of rotation.

A collapsible trolley with a guardrail includes a rack assembly, a pull handle assembly provided in front of the rack assembly, a push handle assembly fixed behind the rack assembly, a caster assembly provided at a bottom of the rack assembly, and a canopy assembly provided above the rack assembly. The rack assembly includes a bottom rack, a front frame and a rear frame respectively provided at two ends of bottom rack, and side frames respectively provided at left and right sides of the bottom rack. The front frame is connected to the pull handle assembly, and the rear frame is connected to the push handle assembly. The collapsible trolley with the guardrail avoids the problems that the prior trolleys are prone to falling under load and have small holding strength. The collapsible trolley with the guardrail is simple and labor-saving to fold up, and provides a large usable volume.

Autonomous mobile robots for transporting carts are described. An example robotic cart transport system includes a cart for transport and a robotic transport. The robotic transport includes a transport cab and a load handler. The transport cab includes a drive system and a sensor array positioned over the transport cab. The load handler includes a load base supported by a directable caster wheel, a lift table positioned over the load base, a lift abutment anchor, and a lift drive. The robotic transport can autonomously position the load handler under a cart, and the lift drive can raise the lift table up and off of the top surface of the load base, to a lifted position seated against the lift abutment anchor. The lift table will contact and lift the cart in this motion, and the cart can be transported to a new location by the robotic transport.

A luggage caster for maintenance and replacement includes a wheel frame, a vertical shaft, and trolley wheels in a clearance fit with the wheel frame. The vertical shaft is configured to rotate axially within a vertical shaft hole of the wheel frame. a bottom end of the vertical shaft defines a riveting hole for forming a riveting flange. A top end of the vertical shaft is provided with a limiting plate that cooperates with the riveting flange to achieve an axial limitation of the vertical shaft in the vertical shaft hole. The top end of the vertical shaft is further provided with an installation head that protrudes from the limiting plate. The installation head is configured to insert into a shaft hole of a luggage bottom support. The riveting hole of the vertical shaft extends axially along the vertical shaft to define an anti-rotation tool hole.

A removable wheel assembly includes a mounting base, a caster assembly and a detachment mechanism. The mounting base is provided with an insertion hole and a transverse guide groove communicated with the insertion hole. The caster assembly includes an insertion shaft, a wheel bracket, a rotating wheel and a housing. The insertion shaft includes a first end portion, and the first end portion is provided with a first engagement portion. The wheel bracket is connected to the insertion shaft. The rotating wheel is mounted on the wheel bracket. The housing includes a first housing and a second housing engaged with each other, and both the first housing and the second housing cover an outer side of the rotating wheel. The detachment mechanism includes a sliding member slidably disposed within the transverse guide groove and an elastic member connected to the sliding member.

A frame for a pull-rod luggage case, including pair of pull rods parallel to each other, a pair of castor seats, an upper beam, a lower beam, and a handle; each of the pull rods at least includes an outer rod and an inner rod telescopically positioned in and out of the outer rod; a lower end of each outer rod is connected to a corresponding castor seat; each of two ends of the handle is fixedly connected with an upper end of a corresponding inner rod; outer rods, the upper beam, and the lower beam define a skeleton.

The invention discloses a buoyancy pipe penetrating construction method, which is characterized in that a water source is used as a medium between an outer sleeve and an inner penetrating pipe, so that the smoothness of the construction process is ensured, and an inlet hole water stopping device and an outlet hole water stopping device are respectively arranged at two ends of the outer sleeve and are used as a sealing system of the water source. In addition, a limiting device, a limiting roller and an anti-collision roller are installed at the position of the inlet hole, the inner wall of the outer sleeve and the end of the inner penetrating pipe respectively. And finally, the inner penetrating pipe is smoothly pushed into the outer sleeve under the action of buoyancy. The problems that in a traditional roller launching method, a method for installing trundles on the outer wall of a pipeline and a pulley block propelling method, the roller structural strength is insufficient, durability is poor, and an outer anticorrosive coating of the pipeline is prone to being damaged are effectively solved, and the method is particularly suitable for large-diameter and long-distance inner penetrating pipe construction with the high requirement for finished product protection; and the method has good economical efficiency and implementation effect.

The invention relates to the technical field of double-roller cast rolling, and provides a roller gap control method. According to the method, in the casting and rolling process, controlled floating of a roll gap is achieved under the condition of constant opening degree by controlling the overall movement of a driving device and a roll system and the relative movement between the driving device and the roll system, and therefore the material updating process in a molten pool is stabilized. Different from a traditional technical scheme, the method can keep the two roller bodies and the side sealing device static relative to the ground in the roller gap floating period, the thickness fluctuation of the green body is effectively avoided, the abrasion rate of the side sealing plate is reduced, and therefore the stability of the cast-rolling process and the quality of the green body are improved.

A trailer jack and transport system providing improved rolling and steerable motion to sport, recreational and utility trailers, when operating on diverse kinds of ground surfaces, including pavement, dirt, sand, and mud, without use of caster-style wheels. The trailer jack and transport system employs a spherical load-bearing transport ball supported within a frame assembly and configured to allow the spherical wheel to freely rotate in any orientation, on ground surfaces of a diverse nature during system operation.

A swing wall assembly is provided. The assembly may have a fixed wall attached to a supporting surface of the space. A geared hinge connects a swing wall to the fixed wall so that the swing wall may be offset from the supporting surface by a caster distance. A caster assembly may protrude from a lower portion of the swing wall by the caster distance so as to be moveable along the supporting surface. The swing wall may be connected to a header by way of a self-aligning lock. A sliding lock may connect the swing wall and or a pod wall that can be operatively associated with the swing wall opposite the fixed wall. The pod wall allows the swing wall assembly to selectively close off different types of spaced within an enclosed space of a recreational vehicle.

A cart provided with a brake assembly capable of synchronously braking two casters having a cart frame. Two front casters and two rear casters are symmetrically arranged at the bottom of the cart frame. A brake mechanism is arranged on the two rear casters and having a connecting tube, a pedal mounted on the connecting tube and two brake assemblies mounted at ends of the connecting tube respectively. Two ends of the connecting tube are connected to the two brake assemblies respectively. The pedal drives the connecting tube to rotate, and limit portions of the brake assemblies abut against limit pieces on the rear casters to bake the rear casters. The two rear casters can be braked synchronously, thus improving the braking efficiency of the cart in the moving process.

The technical scheme provides a concrete vibrating device for road construction. The concrete vibrating device for road construction comprises a vibrating temper mill and a walking crawler belt, the control panel is arranged on a handrail on one side of the main frame; the vibrating temper mill is connected with the walking crawler belt through a suspension chain hook; a main machine frame is arranged in the vibration temper mill, walking trundles and walking sliding plates are arranged on the two sides of the lower portion of the main machine frame, a vibration rod through hole and an impeller shaft through hole are further formed in the main machine frame, a lifting support and a lifting plate are arranged above the vibration rod through hole, and a vibration mechanism is arranged on the lifting plate. A vibrating rod is arranged in the vibrating mechanism, and the vibrating rod is lifted and vibrated along the axis of a vibrating rod through hole through a lifting driving unit; the trowelling impeller is coupled in the impeller shaft through hole through an impeller shaft rod arranged at the upper part of the trowelling impeller; and the trowelling impeller rotates through the trowelling driving unit. The walking crawler belt drives the vibrating and leveling machine to walk, and the vibrating and leveling machine completes vibrating and leveling of a concrete pouring road surface; labor cost is reduced, and construction efficiency is improved.

A mobile lift apparatus includes a mobile base frame with sets of height adjustable, triple caster units, frame mounted floor brakes, a load deck, scissor linkage engaged between the base frame and the load deck, and a load table movable on the load deck. An actuator is engaged with the scissor linkage to extend and retract the scissor linkage.

A low-profile motorcycle dolly comprises a pair of parallel rods and at least one motorcycle wheel support assembly. The motorcycle wheel support assembly comprises a pair of caster subassemblies and a motorcycle wheel plate. Each caster subassembly attaches to one of the rods respectively. Each caster subassembly comprises a caster bracket. The caster bracket attaches to the respective rod and is provided with a pedal assembly. The motorcycle wheel plate is connected between the caster brackets of the pair of caster subassemblies. The pedal assembly comprises a pedal and a pedal shaft. Each caster subassembly further comprises a caster mounting plate pivotably mounted onto the caster bracket. The caster mounting plate comprises at least one caster wheel. The pedal is configured to be operated to rotate downward to push down the caster mounting plate, and upward to allow the caster mounting plate to be lifted.

A caster has a mount, a housing, a horn rotatable relative to the housing about a swivel axis, spaced apart forks on lateral sides of the horn, a wheel assembly disposed between the forks, a swivel locking ring disposed in the horn, and a braking member having a bridging portion and first and second plunger portions projecting away from the bridging portion. The bridging portion has a tooth rack extending outward. The first and second plunger portions project from the bridging portion in a direction opposite the tooth rack and have brake blocks. A brake lever arm is pivotally connected with the housing and movable between engaged and disengaged positions. An engagement pin extends through the housing and the interior of the horn and has first and second ends. The first end is connected with the brake lever arm, and the second end abuts the braking member bridging portion.

A cleaner head for a vacuum cleaning appliance includes a housing which defines a suction chamber. The suction chamber has a suction inlet through which air enters the suction chamber, and a suction port through which air exits the suction chamber. The cleaner head includes a plurality of casters for supporting the cleaner head. Each caster is rotatable relative to the housing about a first axis which is perpendicular to the suction inlet. Each caster is also rotatable relative to the housing about a second axis perpendicular to the first axis. The cleaner head further includes a plurality of guide members for guiding into the suction chamber debris entrained within air drawn towards the suction inlet. Each guide member is arranged to rotate with a respective caster about the first axis.

The utility model discloses a packing box, which relates to the technical field of packing transportation, is used for packing equipment with casters, and comprises a box body and a supporting plate arranged at the bottom of the box body, the supporting plate comprises a bottom plate, the top surface of the bottom plate is concavely provided with a clamping groove, and the clamping groove is used for enabling at least part of the casters of the equipment to sink. On one hand, free rolling of the trundles in the transportation process is avoided, so that the situation that equipment shifts in the box body and extrudes the box body is avoided, on the other hand, the clamping grooves can also have certain restraining and buffering effects on the trundles, and the problem that the trundles cause large impact on the equipment and damage the equipment is avoided.

The utility model relates to the technical field of early warning devices, and discloses a fire operation leaving early warning device which comprises a base, a supporting frame is vertically and fixedly connected to the top of the base, a lifting plate is vertically and slidably connected to the surface of the supporting frame, a connecting box and a control box are fixedly connected to the surface of the lifting plate, and the control box is arranged at the top of the connecting box. A sliding mechanism for sliding the lifting plate is arranged on the surface of the base, a mounting plate is horizontally and fixedly connected into the supporting frame and arranged at the top of the supporting frame, a human body induction module is mounted on the surface of the mounting plate, and universal wheels are mounted at the four corners of the bottom of the base. According to the device, the lifting plate is arranged in an up-down sliding manner, so that the device can be conveniently used for people with different heights and different use scenes during use, the use effect of the device is improved, meanwhile, the device is matched with real-time monitoring of the human body sensing module, prompting is conveniently carried out when the device leaves people, and the safety of the device is improved.

The invention discloses a guardrail device and a using method. The guardrail device comprises a frame structure. The first structure and the second structure are movably arranged on the frame structure; the first trundle part is arranged at the bottom of the first structure; the supporting component is arranged at the bottom of the second structure; the first elastic component acts on the first structure, and the second elastic component acts on the second structure; when the weight of the first structure is greater than a first preset weight, the first structure overcomes the elastic force of the first elastic component and moves in the direction close to the bottom of the frame structure, so that the first trundle component extends out of the bottom of the frame structure; when the weight is larger than a second preset weight, the second structure overcomes the elastic force of the second elastic component and moves in the direction close to the bottom of the frame structure, so that the supporting component extends out of the bottom of the frame structure. The foundation protection function is guaranteed through the frame structure, the state of the guardrail device is switched by increasing and decreasing the weight, the guardrail device is convenient to move while normal use is not affected, and therefore balance can be achieved between the easy-to-open moving function and the prominent anti-collision capacity.

An autonomous transport robot for transporting a payload, autonomous transport robot including, frame with integral payload support that has a payload seat surface defining a payload datum position that determines predetermined payload position relative to autonomous transport robot, transfer arm connected to the frame and configured for autonomous transfer of payload to and from the frame, one caster wheel mounted to frame, drive section with a pair of traction drive wheels astride the drive section, drive section being connected to the frame, wherein the one caster wheel and one traction drive wheel of the pair of traction drive wheels roll, on a rolling surface effecting autonomous transport robot traversal over the rolling surface, each having a fully independent suspension, and are disposed on the frame astride the integral payload support so that the payload seat surface at the payload datum position is disposed at minimum distance above the rolling surface.

The present invention provides a caring machine and an overhanging machine. A main unit module which included in the caring machine comprises a shifting module, a supporting frame module, and a coupling module. The shifting module, situated below the supporting frame module, allows for movement controlled by the opening and closing of wheel casters. The supporting frame module accommodates diverse caring modules, offering a range of care functions. The coupling module, positioned on the shifting module and the supporting frame module, comprises a plurality of coupling devices and a plurality of coupling interfaces. The caring machine integrating the main unit module is capable of addressing daily life activities and basic rehabilitation training for disabilities and elders. The overhanging machine, which using the caring machine, comprises support columns, overhanging arms, a receiving frame and a sling machine. This invention provides versatility and allows users to achieve plural functionalities within one machine.

The invention provides an unstressed supporting and unloading device for ground adjustment of a reflecting surface. The unstressed supporting and unloading device comprises movable trundles, a bottom frame, an adapter plate and an adjustable supporting assembly. The plurality of adapter plates are mounted on the underframe; the adjustable supporting assembly is fixedly connected with the adapter plate, and the top end of the adjustable supporting assembly is used for being connected with an external reflecting surface. The adjustable supporting assembly comprises a rigid supporting bracket, a spherical hinge joint, an upper sleeve, a lower sleeve, a fixed support and a height adjusting structure. The height adjusting structure comprises an upper fixing nut, an upper locking nut, an adjustable supporting screw rod, a lower locking nut, a lower fixing nut, a height adjusting handle and a locking handle; a height adjusting handle is mounted on the adjustable supporting screw rod; locking handles are mounted on the upper locking nut and the lower locking nut; one set of device can penetrate through the reflecting surface assembling technological process, parking, loading, transporting and adjusting of the reflecting surface are met, one-stop assembling is achieved, and the assembling efficiency is improved.

To provide technology that enables stable travel in a drive unit.SOLUTION: A drive unit 1 has a caster unit 3, omnidirectional drive wheels 2, and a support member 11. The support member supports the caster unit and the omnidirectional drive wheels. The caster unit has multiple wheels 31 facing each other through a gap, a caster shaft extending in the vertical direction and disposed between the wheels, and elastic members. The omnidirectional drive wheels 2 are drivable in any direction along a plane perpendicular to the vertical direction. The caster shaft is supported in the vertical direction by the elastic force provided by the elastic members.SELECTED DRAWING: Figure 1

The invention relates to the technical field of material carrying robots, in particular to a material carrying robot for industrial production, which comprises a bottom plate, universal trundles are fixedly arranged at the bottom end of the bottom plate, a base is fixedly arranged at the upper end of the bottom plate, and through a long plate arranged at the output end of a regulator II, when a servo motor is started by a worker, the servo motor is driven to rotate by the regulator II; the two sliding blocks fixed to the output end of the servo motor move oppositely, so that the distance between the two sliding blocks is adjusted and controlled, the clamping stability of the first clamping arm and the second clamping arm can be improved, the second clamping arm can penetrate through a groove in the first clamping arm in the clamping process, and the clamping stability of the second clamping arm is improved. At the moment, the hook on the second clamping arm can be hung on the connecting silk thread in the first clamping arm, the connecting silk thread can be combined with the first clamping arm and the second clamping arm to form a closed space at the moment, it is avoided that cylindrical materials clamped between the first clamping arm and the second clamping arm have good stability.

A ride-on zero-turn work machine features a novel split frame composed of a rear tractor half, and an attachable / detachable front implement half. The rear half includes a driver seat, and two drive wheels for driven locomotion and steering of the machine. For rolling support of the assembled machine, the drive wheels cooperate with caster wheels on the front half, where a working implement is also embodied. Through selective interchange of one front half for another substitutable front half having a different working implement, the machine is selectively reconfigurable for different work applications. An electronic controller embodied on the rear half is operable to detect and distinguish between such different interchangeable front halves, and adjust operating parameters of rear half componentry based thereon. A dolly selectively attachable to the rear half embodies an auxiliary wheel, enabling locomotion of the rear half in absence of the front half.

The floor grinding machine comprises a bottom plate, a protection frame is fixedly connected to the rear end of the top of the bottom plate, trundles are installed at the four corners of the bottom of the bottom plate, a push handle is installed on the protection frame, an opening is formed in the front portion of the bottom plate, a fixing frame is arranged at the position, above the opening, of the top of the bottom plate, and a grinding assembly is arranged on the inner side of the fixing frame. A cleaning assembly is arranged on the rear side of the polishing assembly, an equipment box is arranged at the position, on the inner side of the protection frame, of the top of the bottom plate, a dust collection assembly is arranged above the equipment box, a storage battery is arranged in the equipment box, and an inverter and a circuit board are arranged on the two sides of the storage battery correspondingly. The protection ring is matched with the dust collection assembly, so that dust on the inner side of the protection ring can be conveyed into the dust collection box in time, dust generated during grinding is effectively prevented from drifting into air, and the dust is prevented from polluting the working environment; and a second electric cylinder is matched with a cleaning strip to achieve automatic cleaning of the ground floor, labor is saved, and practicability is high.

The invention discloses a lifting device and method for storage and transfer of an airship pod, and relates to the technical field of storage and transfer of airship pods.The lifting device comprises an upper bracket, two lifting driving assemblies, a middle support, a damping spring, a base, four wheels and a traction rod; through the modular truss structure design, the bearing capacity and the lightweight requirement are both considered; a multi-dimensional vibration reduction system is formed by the vibration reduction springs which are arranged horizontally, longitudinally and transversely and the soft rubber buffer cushion, and the structure and function integrity of the pod in the storage and transfer process can be effectively protected by matching with the flexible moving and locking functions of the universal wheels with brakes; the lifting driving assembly adopts worm and gear transmission to achieve stable lifting and + / -15-degree pitch angle adjustment, an operating hand wheel designed in an ergonomic mode is combined, electric drive is matched, and the requirement for precise adjustment and control of pods is met. And the operation efficiency is greatly improved through the quick disassembly and assembly design of the positioning and fixing assembly and the traction rod.

The invention discloses a feeding device for forging blank sawing, and belongs to the field of feeding equipment.The feeding device comprises a conveying mechanism and a limiting mechanism, the conveying mechanism comprises a plurality of shear fork frames which are pivoted end to end, the upper portions of the shear fork frames are rotationally connected with rollers, the middles of the shear fork frames are provided with pivot shafts, and the lower portions of the shear fork frames are provided with lower connecting rods; the conveying mechanism further comprises a plurality of H-shaped supports, side pipes are arranged on the inner walls of the H-shaped supports, the two ends of the lower connecting rod are slidably installed in the kidney-shaped grooves, and trundles are arranged on the lower portions of the H-shaped supports. The limiting mechanism comprises two rows of limiting baffles which are symmetrically arranged. The conveying mechanism is designed to be of a telescopic structure, stable support is provided for the forge piece blanks, especially long-size forge piece blanks, and the problem that the forge piece blanks are warped and unstable during saw cutting is avoided; by arranging the limiting mechanism, the forge piece blank is prevented from generating transverse deviation in the conveying process, the labor intensity of operators for manually adjusting the angle of the blank is relieved, and the saw cutting operation efficiency is improved.

An example article of furniture includes a number of furniture legs having mechanically coupled thereto a respective furniture caster having a rolling component. The furniture casters are movable between (i) an extended position in which their rolling components at least partially extend below bottom surfaces of the furniture legs and (ii) a retracted position in which their rolling components are positioned entirely above the bottom surfaces of the furniture legs. Push-pull cables are mechanically coupled to the furniture casters, and at least one actuator is mechanically coupled to the push-pull cables. When actuated, the actuator applies a pushing force to the push-pull cables, thereby causing the furniture casters to transition from the retracted position to the extended position. When the actuator is not actuated, the pushing force is removed from the push-pull cables, thereby causing the furniture casters to transition from the extended position to the retracted position.