3378results about "Castors" patented technology

A stand is for moving an umbrella on a surface. The stand includes a base assembly to receive the umbrella and being over the surface, and arms. Each arm has a proximal end coupled to the base assembly, and a distal end extending outwardly from the base assembly. The stand also includes wheels respectively coupled to the distal ends of the arms, and supports coupled to the base assembly and extending outwardly from the base assembly, each of the supports has a pivot point for a respective one of the arms. The stand includes an actuator assembly coupled to the base assembly and configured to cause the base assembly to switch between a first stationary state and a second movable state.

A patient transport apparatus includes a base, a patient support deck, a plurality of wheels, a plurality of brakes, and an electro-mechanical braking system. The electro-mechanical braking system includes a linkage and an electrical braking assembly. The linkage is operatively coupled to the brakes to place the brakes in a braked state, a released state, or other state. The electrical braking assembly includes an actuator assembly that moves the linkage via a driving member. A user interface includes an input control for user engagement. A brake control circuit includes a hold circuit to generate an enable signal with a predetermined voltage in response to the user engagement with the input control, maintain the enable signal for a predetermined period following user disengagement with the input control, and operate the actuator assembly with the enable signal to move the driving member within the predetermined period.

A desk assembly with a frame, a seat, and a desk. The frame is configured to support the desk assembly on a horizontal surface and has guide rails extending between a first end and a second end of the frame. The seat is securely attached to the first end of the frame and has an adjustable position. The desk has a desk platform and legs that are movably coupled to the guide rails. The desk is vertically adjustable between a standing position where the desk platform is positioned at a first height and a sitting position where the desk platform is positioned at a second height lower than the first height. While in use, the frame is configured to remain stationary with respect to the horizontal surface and the desk is moveable along the guide rails between the first end and the second end of the frame.

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 wheel assembly is composed of multiple wheels, each featuring a hub with spokes and a main axle bore, and cross-roller sub-assemblies that include symmetrical axles and solid bushings, as well as peripheral rollers. The cross-roller sub-assemblies are overmolded with the wheel hub to form a peripheral axle ring. A method of assembling the wheel assembly involves creating the cross-roller sub-assemblies by overmolding the solid bushings with peripheral rollers, and then placing these sub-assemblies in a mold to form the peripheral axle ring. Alternatively, the pre-roller assemblies may be overmolded directly with the wheel hub to form the peripheral axle ring.

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.

The invention discloses a heat preservation box and processing equipment thereof, and belongs to the technical field of heat preservation boxes. The heat preservation box comprises a box body and a box cover, the box body is formed by wrapping a heat preservation layer with an inner shell and an outer shell, and the heat preservation layer is wrapped with a box cover shell. An aerogel groove and a vacuum plate groove which are overlapped are formed in the heat preservation layer and filled with aerogel particles and a vacuum heat insulation plate respectively, and the surface of the heat preservation layer is sprayed with a nanometer aerogel coating and provided with a reflecting film. The box body is connected with the box cover through a supporting hinge, and is provided with a supporting piece, a roller, a limiting sinking groove, a flow guide channel and a residual volume space measuring system. The processing equipment comprises a bracket, a rotary power source, a rotary platform, a vibration unit and a filling device, and can realize uniform filling and compaction of aerogel particles. The problems that a traditional heat preservation box is poor in heat preservation performance, pressure is accumulated, and transportation is inconvenient are solved, and the heat preservation box is suitable for cold-chain transportation and other scenes.

A hub motor includes a housing rotatably disposed to a first shaft and a second shaft, and a motor installed in the housing and having a stator and a rotor. A reduction mechanism is installed in the housing, including a gear shaft connected with the rotor, a fixed bracket connected with the stator, a movable bracket disposed on the gear shaft and the second shaft, a first ring gear disposed to the fixed bracket, a second ring gear disposed to the housing, multiple first planet gears disposed to the movable bracket and meshed with the gear shaft and the first ring gear, and multiple second planet gears disposed to the second shaft and meshed with the movable bracket and the second ring gear. By 10 inserting a hollow tube into the first shaft, the gear shaft, the movable bracket, and the second shaft, the waterproof and dustproof performance can be enhanced.

The utility model belongs to the technical field of temperature control equipment, and particularly relates to a gas-liquid double-cooling low-temperature thermostatic bath which comprises a machine body, a bath body and a refrigeration mechanism, and the bath body and the refrigeration mechanism are located in the machine body. The refrigerating mechanism is connected with a condensate coil pipe in the tank body, the tank body is connected with a liquid inlet and a liquid outlet, and liquid in the tank body circulates or circulates through the liquid inlet and the liquid outlet. A gas coil pipe is further arranged in the tank body, a gas inlet connector and a gas outlet connector are arranged on the side face of the machine body, and gas enters the gas coil pipe through a pipeline and the gas inlet connector and flows out of the gas outlet connector after being cooled by liquid in the tank body. The liquid and gas cooling device can meet the cooling requirements of liquid and gas, is suitable for wider experiment or industrial application scenes, is particularly applied to the working condition that the liquid and the gas are cooperatively cooled, has higher adaptability, can better keep the consistency and the stability of the temperature, and saves time and resources.

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.

The invention relates to the field of carbon dioxide gas storage, and discloses a carbon dioxide gas storage device which comprises a base and a storage tank, the storage tank is installed above the base through a rotating structure, a limiting cylinder is arranged in the base through a lifting structure, and the bottom end of the storage tank is sleeved with the limiting cylinder; the storage tank comprises a base, the left side face and the right side face of the base are each provided with a moving structure, mounting plates are mounted on the lower portions of the front side and the rear side of the outer face of the storage tank, handles are mounted on the mounting plates, and first protection structures are arranged on the handles. The storage tank is arranged on the base and is positioned through the positioning structure, so that the storage space on the base is exposed, the storage tank can be continuously stored in the storage space on the base, and the storage occupied space is reduced while the storage stability problem is solved.

The utility model relates to the field of cleaning equipment, and discloses an obstacle crossing mechanism, a driving device and a cleaning robot. The obstacle crossing mechanism comprises a base, a rotating piece and a driving assembly, the base is used for being connected with walking equipment, the driving assembly can drive the rotating piece to rotate in the first direction and the second direction, and obstacle crossing supporting legs are arranged on the rotating piece; when rotating in the first direction, the rotating part can drive the obstacle crossing supporting legs to rotate so as to support the walking equipment and walk through the obstacle crossing supporting legs, and when rotating in the second direction, the rotating part can jack up a chassis of the walking equipment. The driving device comprises a walking frame and the obstacle crossing device. The cleaning robot comprises the driving device. Based on the obstacle crossing mechanism provided by the utility model, the obstacle crossing mechanism can be arranged on the cleaning robot, so that the cleaning robot can be driven by the obstacle crossing mechanism to cross obstacles or walk in special scenes such as a long wool carpet, and the application range of the cleaning robot is widened.

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 discloses an automobile hub conical bearing anti-falling sealing structure which comprises an outer ring, a plurality of conical rollers are arranged on the inner wall of the outer ring at equal intervals, an inner ring is arranged on the inner sides of the conical rollers, a clamping groove is annularly formed in the inner ring, a first limiting groove and a second limiting groove are formed in the two ends of the clamping groove, and the clamping groove is connected with a locking block in a clamped mode. The centripetal end faces of the multiple locking blocks are connected with an axle outer ring, and the first limiting groove and the second limiting groove are slidably connected with the two ends of the locking blocks. Meanwhile, dust enters due to poor lubrication, abrasion of a retainer and a rolling body is aggravated, the retainer is broken, the rollers are scattered, a single tapered roller is seriously abraded, the tapered rollers cannot revolve along an inner ring, a gap between the inner ring and an outer ring goes wrong, and the tapered rollers fall off.

A patient transport apparatus includes a base, a patient support deck, a plurality of wheels, a plurality of brakes, and an electro-mechanical braking system. The electro-mechanical braking system includes a linkage, a manual actuator, and an electrical braking assembly. The linkage is operatively coupled to the brakes to place the brakes in a braked state, a released state, or other state. The manual actuator moves the linkage manually to place the brakes in one of the states. The electrical braking assembly includes an actuator assembly that moves the linkage with electrical power to place the brakes in one of the states.

The biscuit baking oven capable of being conveniently moved and adjusted comprises a movable base, a movable base, second hydraulic telescopic columns, an upper heating furnace, an oven body bottom seat and a heating wire, the four second hydraulic telescopic columns are evenly arranged on the upper surface of the movable base, and the oven body bottom seat is fixed among the telescopic ends of the four second hydraulic telescopic columns. The biscuit baking oven convenient to move and adjust comprises an oven body bottom seat, two up-down moving parts are fixed to one side of the oven body bottom seat, an upper heating furnace is fixed between the driving ends of the up-down moving parts, the upper heating furnace corresponds to the oven body bottom seat up and down, the inner top face, the front side and the rear side of the upper heating furnace are each provided with a heating wire, and the heating wires are of an S-shaped structure. The baking oven is simple in structure and easy and convenient to operate, the baking oven can be assembled more rapidly and conveniently, the device can be moved conveniently, and convenience is provided for people.

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.

A sealing device includes a body, a first lip protruding from the body, a second lip protruding from the body and positioned apart from the first lip in a radially inward direction of the first lip, a first grease applied to a surface of the first lip, and a second grease applied to a surface of the second lip. Properties of the first grease differ from properties of the second grease.

To provide a vehicle wheel support device that can achieve commonization of components.SOLUTION: A vehicle wheel support device 10 comprises: a hub bearing 12 which rotatably supports a hub shaft 124 which is a rotary shaft body connected to a wheel W; a hub carrier 11 which has a storage hole part 111 for accommodating a part of the hub bearing 12, and supports the hub bearing 12 in the state of being accommodated in the storage hole part 111; a sensor 13 which is fixed to a fixed part 112 of the hub carrier 11 in the state that a detection part 131 for detecting a rotation state projects from an inner peripheral surface of the storage hole part 111 so as to detect the rotation state of an inner ring 122 around an axis thereof; and a cap 15 which prevents foreign matters from entering the inside of the hub bearing 12 from a space S that permits entry of the foreign matters, and with which a deflector member 15A, which is at least a part of a deflector 14 for isolating the detection part 131 in the space S, is formed integrally.SELECTED DRAWING: Figure 2

Provided in the present application is a wall-climbing robot, which can stably walk on a curved surface to implement stable operation on a curved wall surface. The wall-climbing robot comprises: a robot base; and a traveling mechanism, which is arranged on the side of the robot base facing toward a wall surface, and comprises a swing shaft, a connecting shaft, wheels and a magnet, wherein the wheels are used for walking on the wall surface and are arranged at two ends of the connecting shaft that extend in a first direction, the first direction being perpendicular to the diameter direction of the wheels; the magnet is used for providing a magnetic attraction force between the traveling mechanism and the wall surface and is arranged between the wheels at the two ends of the connecting shaft; the swing shaft extends in a second direction and is arranged between the wheels at the two ends of the connecting shaft, the second direction being perpendicular to the first direction; and the connecting shaft is capable of rotating about the swing shaft.

Provided are a vehicle control method, a multi-purpose vehicle, and a garden work vehicle. The multi-purpose vehicle includes a drive mechanism, a control mechanism, and an auxiliary control mechanism. The auxiliary control mechanism includes: a control state sensing component, configured to determine a control state of a user with respect to the control mechanism; a traveling state sensing component, configured to determine the traveling state of the multi-purpose vehicle, the traveling state including a straight-line traveling state and a non-straight-line traveling state; and a calibration controller component, configured to determine that the multi-purpose vehicle is traveling abnormally in response to a mismatch between the traveling state and the control state. The calibration controller component is further configured to adjust, in response to determining that the multi-purpose vehicle is traveling abnormally, the operating state of the drive mechanism to match the traveling state with the control state.

An omni wheel including a hub and a roller assembly. The hub includes a disk assembly. The roller assembly includes a plurality of rollers. The plurality of rollers are disposed on the disk assembly. The plurality of rollers each comprise a wider portion and a narrower portion connected to a side of the wider portion so that a step is formed between the wider portion and the narrower portion.

An arrangement for limiting rotation, the arrangement including a base structure; a drive member rotatable relative to the base structure and having a drive feature; a stopping member having at least one driven feature, wherein the stopping member is arranged to be intermittently driven relative to the base structure between a plurality of discrete positions by a continuous rotation of the drive member and by cooperation between the drive feature and at least one driven feature, wherein the stopping member in a first end discrete position is arranged to limit rotation of the drive member in a first end position of a rotation range of the drive member; and a holding mechanism arranged to hold the stopping member in each discrete position, the holding mechanism being at least partly provided in the base structure.

The utility model discloses a moving wheel assembly and walking equipment, the moving wheel assembly comprises a mounting seat, a moving wheel and an obstacle crossing auxiliary part, and the moving wheel is rotatably connected with the mounting seat; the obstacle crossing auxiliary component is arranged in a plate shape and comprises a guide part which is arranged in the advancing direction of the moving wheels and located in front of the moving wheels, the side edge, used for making contact with an obstacle, of the guide part is obliquely arranged, and the lowest point of the guide part is not higher than the maximum obstacle crossing height of the moving wheels. The moving wheel assembly is simple in overall structure and small in occupied space, and the obstacle crossing ability of the moving wheel assembly is improved to the maximum extent in the limited space. And the contact surface between the side edge of the obstacle crossing auxiliary component and the obstacle is small, so that the moving wheel cannot have large steering resistance, the moving wheel can smoothly correct the advancing direction during obstacle crossing, and it is guaranteed that the moving wheel can smoothly cross the obstacle.

The invention discloses a sealed transport vehicle which comprises a sealing main body, a sealing part, a sealing part, a sealing part, a sealing part and a driving part. The sealing main body is of a hexahedron structure; a sealing strip is arranged on the inner side of the sealing main body; the drawer mechanism comprises a plurality of drawer pieces installed in the sealing body in a sliding mode, and supporting structures used for bearing products are arranged in the drawer pieces; the door body is hinged to one side of the main body frame, and after being closed, the door body is matched with the sealing main body to form a transportation sealing cavity; the buffer mechanism is arranged at the bottom of the sealing main body and comprises a spring damping assembly; and the anti-static structure is used for guiding out static electricity generated by the transport vehicle. According to the sealed transport vehicle, the drawer can be used for storing and reliably supporting products, it is guaranteed that the products do not shake greatly, the phenomenon that the products fall off and are damaged is avoided, meanwhile, good sealing performance and good anti-static capacity can be guaranteed, the products are convenient to take and place, and product damage caused in the product taking and placing process is avoided.

To provide a wheeled structure and a carrier that can perform a smooth go-over operation with little force from the beginning of going over a step to the end thereof.SOLUTION: According to this wheeled structure, a larger-diameter main wheel is placed at the back side in the travelling direction of a frame, and a smaller-diameter sub wheel is placed at the front side in the travelling direction. This wheeled structure is configured to cause the sub wheel to abut the upper surface of a step along with a touch of the main wheel to the step, and then to cause the main wheel to go over the upper surface of the step. The frame is provided with a frame support member. The frame support member is provided with a rotation mechanism provided with a turn shaft placed in parallel with the rotation shaft of the main wheel. Moreover, provided between the rotation shaft of the main wheel and the turn shaft are: a transmission mechanism that decelerates the counterclockwise rotation of the main wheel and transmits the decelerated rotation to the turn shaft; a transmission control mechanism that controls whether or not to transmit the rotation of the main wheel to the turn shaft; a clutch mechanism that changes the rotation of the turn shaft in accordance with the rotation of a clutch plate; and a return mechanism that returns the clutch mechanism to the initial position by force applied from an elastic body.SELECTED DRAWING: Figure 1

The utility model discloses a trundle seat brake structure, and relates to the technical field of trundle manufacturing, the trundle seat brake structure comprises a trundle seat and a brake part in sliding fit with the trundle seat, the trundle seat is coaxially provided with a trundle and a brake pedal through bolts, the brake part is of an L-shaped structure formed by a sliding plate and a brake pad, and a limiting closing opening is formed in the break angle of the brake pad. A square through hole for the brake pad to be inserted in an inclined mode is formed in the trundle base, and the limiting closing-in opening is vertically connected to the square through hole in a sliding mode after the brake pad is inserted in the square through hole. The brake part has the technical advantages that the square through hole is formed in the trundle seat, the sliding plate and the brake which are integrated in an L shape are machined only through one-time bending, assembly on the trundle seat can be achieved, and the overall structure of the brake part is optimized on the premise that the use stability is not affected; by limiting the size of the square through hole, the brake piece can only be assembled in the square through hole in an inclined mode, the brake piece can be stably matched in the square through hole in a sliding mode after being installed, and vertical limiting and lateral limiting can be achieved through the single square through hole.

To provide a new improved portable sterilization device and method for sterilizing medical instruments and devices, storing the sterilized medical instruments and devices in a sterilized state before use, and moving the sterilized medical instruments and devices to a place where medical treatment is performed, which overcomes one or more of conventional inconveniences.SOLUTION: A portable sterilization system includes a sterilization cabinet. The sterilization cabinet comprises a bottom panel, a top panel, two side panels, a back panel, and a door defining an interior chamber, and a plurality of casters or wheels mounted to the bottom panel. The plurality of casters or wheels is each mounted to the bottom panel by a caster bracket or wheel bracket. The caster bracket or wheel bracket comprises a lateral projection.SELECTED DRAWING: Figure 4