5482results 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 wheel support assembly for a bottom drawer is disclosed. When the bottom drawer is open, the wheel support assembly may provide support in a deployed position. When the bottom drawer is closed, the wheel support assembly may be retracted in a cavity to be invisible to consumers.

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 medical rehabilitation chair includes a main frame, multiple castor devices mounted on the bottom of the main frame, and two armrest boards mounted on two sides of the main frame. A telescopic damping driver, a seat frame assembly, a backrest frame assembly, a leg support assembly, a lifting mechanism, and a foot support assembly are assembled on the main frame. The seat frame assembly has a front section connecting the leg support assembly and a rear section connecting the backrest frame assembly. The telescopic damping driver drives the backrest frame assembly, the seat frame assembly, and the leg support assembly, to produce different swinging angles. The lifting mechanism drives the seat frame assembly to lift or lower. The foot support assembly is movable in a horizontal direction to protrude from the front section of the main 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 flatbed truck with a foldable caster unit, comprising a load-bearing plate, a load-bearing support frame and a caster unit, and further comprising a caster unit rotation driving device. The caster unit rotation driving device comprises an operating handle, a connecting rod, a front linkage mechanism and a rear linkage mechanism, wherein the operating handle is pivotally connected with the load-bearing plate and is rotatable around a pivot axis of the operating handle. The operating handle is capable of linking with the front linkage mechanism and the rear linkage mechanism via the connecting rod to respectively drive the front caster unit and the rear caster unit to be rotated from the folded storage position to the unfolded rolling position, when the operating handle is rotated from a first position to a second position.

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.

A sterilization cabinet, comprising a top panel, at least two side panels, and a floor panel forming a part of a chamber of the sterilization cabinet; one or more dividers segmenting the chamber into sections; at least one door a plurality of doors connected to at least one of the at least two side panels of the sterilization cabinet; a vent formed in at least one of the two side panels; at least one first filter covering the vent and a filter cover configured to hold the first filter against the vent; at least one drain positioned in the floor panel, wherein the floor panel has a slope configured to cause condensate within the chamber to flow into the drain and wherein the drain is the only outlet for the condensate along the floor panel; and a second filter covering the drain such that condensate flowing into the drain passes through the second filter.

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.

A swivel castor, having a housing which can be pivoted into a rolling direction via pivot means and two wheels rotatably mounted on the housing on a horizontal wheel axle, wherein the pivot means are arranged in front of the wheel axle, contrary to the rolling direction, and having a braking device designed to be adjustable between a braking position, in which the braking device exerts a braking force on at least one wheel, and a free-rolling position, in which the braking device releases the wheels. A brake pedal generating the braking force is pivotably mounted on the housing via a pedal axle, which extends parallel to the wheel axle and arranged between the wheels, and, in the braking position, at least one brake shoe arranged on the brake pedal exerts a braking force parallel to the wheel axle directly on one side of at least one wheel.

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 bridge engineering height measuring device with a warning function disclosed by the present invention comprises a bottom plate and a distance measuring sensor, an electric telescopic rod is fixedly connected to a position, close to the center, of the top of the bottom plate, a water tank is fixedly connected to the top end of the electric telescopic rod, and a round hole is formed in the top of the water tank. An annular floating plate is arranged in an inner cavity of the water tank, a threaded pipe is connected to the top of the annular floating plate, a threaded column is inserted into an inner cavity of the threaded pipe, the distance measuring sensor is installed at the top end of the threaded column, an open groove is formed in the threaded column, and a first round rod movably penetrates through an inner cavity of the open groove; according to the height measuring device and method for bridge engineering with the warning function, when the electric telescopic rod works, the universal wheels can be moved to be away from the ground to fix the device, the reflective cloth strip can be unfolded to achieve the reflective warning effect, meanwhile, the height of the distance measuring sensor can be adjusted, three purposes are achieved through one lift, and the device is convenient to use. The operation is more convenient.

The invention belongs to the technical field of highway pavement roughness detection, particularly relates to an automatic highway engineering quality detection device and a detection method thereof, and aims to solve the problems that in the prior art, only linear detection can be carried out, pavement sundries affect the detection precision, and detection wheel abrasion affects the accuracy of a detection result. A plurality of moving wheels are fixed to the bottom of the moving frame through supporting legs. The road flatness detection device further comprises a lifting plate arranged above the moving frame, the bottom of the lifting plate is slidably connected with a moving arm, the bottom end of the moving arm extends to the lower portion of the moving frame and is welded with a connecting frame, and during road flatness detection, the universal wheels can move along an S-shaped line, detection points are increased, and the detection accuracy is improved. The cleaning brush disc can be driven to remove sundries on a road where the universal wheels move forwards when the universal wheels move back and forth, the detection accuracy is guaranteed, in addition, after the universal wheels are abraded, the universal wheels can be replaced in time, and the situation that road flatness detection is affected by abrasion of the universal wheels is avoided.

The invention discloses a pure electric cargo ship shore-based movable charging pile and a using method, the pure electric cargo ship shore-based movable charging pile comprises a supporting base, the top of the supporting base is provided with a pure electric cargo ship charging pile body, and the two sides of the pure electric cargo ship charging pile body are each provided with a charging wire. According to the pure electric cargo ship charging device, a charging plug and a detachable plug which adapt to a current pure electric cargo ship are replaced, power transmission is achieved through opposite insertion of a pairing plug and an installation plug, and charging work of different charging plugs and the pure electric cargo ship is completed; when the height position of the adjusting box in the supporting base is adjusted, the adjusting box drives the inner sliding plate, the connecting support and the universal wheels to move synchronously, all the universal wheels are stored in the through openings, supporting between the supporting base and the ground is completed, and the pure electric cargo ship charging pile body is supported.

A vehicle control method, a multi-purpose vehicle, and a garden work vehicle, capable of ensuring an accurate response to a manipulation intention of a user, and optimizing user experience. The multi-purpose vehicle comprises a driving mechanism, a manipulation mechanism, and an auxiliary control mechanism. The auxiliary control mechanism comprises: a manipulation state sensing assembly, used for determining a manipulation state of a user for the manipulation mechanism, the manipulation state comprising a linear manipulation state and a non-linear manipulation state; a running state sensing assembly, used for determining a running state of a multi-purpose vehicle, the running state comprising a linear running state and a non-linear running state; and a calibration controller assembly, used for determining, when the running state does not match the manipulation state, that the multi-purpose vehicle is abnormally running, wherein the calibration controller assembly is further used for adjusting an operating state of the driving mechanism after determining that the multi-purpose vehicle is abnormally running, so as to enable the running state to match the manipulation state.

The present disclosure relates to a sealing arrangement (1) for a bearing, comprising a first sealing element (2), which is connectable to a bearing inner ring of the bearing, a second sealing element (3), which is connectable to a bearing outer ring of the bearing, and a sealing gap (4) formed between the first sealing element and the second sealing element, wherein the sealing gap is formed as a stepped labyrinth seal (5). The disclosure also relates to a bearing arrangement having a sealing arrangement of this kind.

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.

An ultrasound diagnostic apparatus includes: a plurality of drive casters; a plurality of lock mechanisms that are respectively provided in the plurality of drive casters, each of the plurality of lock mechanisms locking movement of a corresponding drive caster; and an indicator that presents whether the lock mechanism is in a locked state in which the movement of the drive caster is locked or in a released state in which the movement of the drive caster is allowed.

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 invention discloses a coal field exploration transportation device. The coal field exploration transportation device comprises a back plate and lockable moving wheels. According to the device, an electric hydraulic rod and pressure sensors are adopted, when products obtained through coal field exploration are conveyed, the obtained objects can be directly placed in the transport box, the pressure sensors abut against the two sides of the bottom of the transport box, and at the moment, the transport box can apply pressure to the pressure sensors; after the articles are placed in the transport box, the pressures detected by the pressure sensors at different positions are different, and at the moment, the relative expansion and contraction amount of the multiple sets of electric hydraulic rods around the transport box can be adjusted according to the difference, so that the transport box correspondingly rotates and inclines on the surface of the back plate; the gravity center of the transportation box returns to the middle position again, comfort reduction caused by excessive pressure on the single side of the shoulder of a person and falling of the person during transportation caused by excessive weight on the single side are avoided, the transportation safety is guaranteed, and the transportation box has the advantage that the gravity center of the back load is adjusted.

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 wheel structure includes: a wheel; a rotary part disposed inside the wheel and configured to rotate together with the wheel; a fixing part facing the rotary part; a hub bearing disposed at one side of the rotary part and the fixing part; and a resolver facing the hub bearing and configured to detect a position of the hub bearing. The hub bearing includes: a hub body fixedly coupled to the rotary part; and a hub outer race fixedly coupled to the fixing part. The resolver includes: a resolver rotor; and a resolver stator. The resolver rotor is fixedly coupled to the hub body.

A walking frame (100) comprising a walking frame body (110) configured to provide support to a user as they walk across a surface, at least one swivel castor (120a. 120b) coupled to the walking frame body (110) and comprising a wheel (122) configured to contact the surface and rotate and a wheel mount (124) rotatable with respect to the walking frame body (110) to change the orientation of the wheel (122) relative to the walking frame body (110) and allow the user to steer the walking frame (100). The walking frame (100) also comprises an alignment mechanism (130) configured to apply a biasing force to the wheel mount (124) on rotation thereof to bias the wheel (122) into a predetermined orientation relative to the walking frame body (110), wherein the biasing force applied to the wheel mount (124) decreases as the wheel mount (124) rotates away from the predetermined orientation.