Abstract: Disclosed is a linear actuator, including a drive motor, a transmission assembly, a rotary screw, a transmission nut, a clutch device, a self-locking device and a hand-pull release assembly. The clutch device is arranged between the transmission assembly and the rotary screw. The self-locking device is configured to generate frictional resistance to the rotary screw when the rotary screw rotates reversely, and the self-locking device includes a release torsion spring. The hand-pull release assembly includes a first driving member connected with the clutch device and a second driving member connected with the self-locking device, and has an initial state and a fully released state. During the process from the initial state to the fully released state, the first driving member drives the clutch device to disconnect power, and the second driving member drives the release torsion spring to extend.

Abstract: A wave energy capture system deployed in water converts mechanical motion induced by waves in the water to electrical energy. A controller of the wave energy capture system receives input regarding real-time wave conditions in a vicinity of the wave energy capture system. The controller applies a control model to the received input to select a value of a control parameter for the wave energy capture system, where the control model includes a model that has been trained using machine learning to take wave condition data as input and to output control parameter values selected based on the wave condition data in order to increase an amount of energy captured by the wave energy capture system. The controller implements the selected value of the control parameter on the wave energy capture system.

Abstract: An ice skate for skating on ice, which comprises; an upper chassis section comprising a first contact surface having a front end and a rear end, a lower chassis section comprising a second contact surface having a front end and a rear end, and a coupling arrangement comprising a spring back means, which coupling arrangement is arranged to mechanically connect the upper and lower chassis sections.

Abstract: A transmission assembly for a lifting column is provided. The lifting column includes an inner tube. The transmission assembly includes a hollow spindle, a transmission screw, a sleeve sleeved over the hollow spindle, a guide tube limited in the sleeve, and an actuating device actuating the guide tube to rotate. The guide tube and the hollow spindle are synchronously rotatable and axially expandable and retractable relative to each other. The transmission screw and the hollow spindle are synchronously rotatable and are axially expandable and retractable relative to each other. The actuating device is disposed in the inner tube and securely mounted to an upper end of the sleeve. A lower end of the sleeve is securely connected with a first transmission nut that is threadedly-fitted with the hollow spindle, the first transmission nut is securely coupled to the inner tube, and the upper end of the sleeve is movably disposed.

Abstract: A self-locking drive, usable in a linear actuator, includes a housing and a drive shaft for outputting a driving force. An endcap is provided at an end portion of the housing. A self-locking mechanism configured to apply a self-locking force to the drive shaft is provided in the endcap. The self-locking mechanism includes a friction seat sleeved over the drive shaft and rotatable synchronously with the drive shaft, and a friction ring mounted in the endcap and secured to the endcap. The friction seat is interference-fitted with the friction ring to enable two-way self-locking to the drive shaft.

Abstract: A lifting desk is related to fields of lifting desks. The lifting desk includes a drive device, a gearbox, a desktop, a crossbeam, and a lifting column, the crossbeam being connected to the desktop, the lifting column being connected to the crossbeam, the gearbox including a gear assembly, the drive device being in driving engagement with the gear assembly, the gear assembly being in driving engagement with the lifting column; the lifting desk further includes a retaining plate, the retaining plate being securely connected to the desktop, the gearbox being connected to the retaining plate. The desk offers an advantage that the structure disclosed may enhance assembly precision of the lifting desk and enables lifting control of the desktop.

Abstract: Disclosed is a grease-isolating structure for storing a circuit board, the structure being disposed in an outer tube of a solar actuator, in the outer tube being further provided the circuit board, a through-hole running axially through the outer tube being provided for the outer tube, wherein a cavity for storing the circuit board is provided on a wall of the outer tube, the cavity and the through-hole being isolated from each other. Further disclosed is a solar actuator in which the circuit board storage structure is provided.

Abstract: An ice skate for skating on ice, which ice skate comprises; an upper chassis section comprising a first contact surface having a front end and a rear end, a lower chassis section comprising a second contact surface having a front end and a rear end, and a coupling arrangement comprising a spring back means, which coupling arrangement is arranged to mechanically connect the upper and lower chassis sections. The coupling arrangement is arranged to allow the upper chassis section to pivot relative to the lower chassis section by rolling contact motion between the first and second contact surface such that a momentary contact region (CR) of the first and second contact surfaces moves back and forth between the front and rear ends of the first and second contact surfaces. The spring back means is arranged to urge the momentary contact region (CR) to a neutral position.

Abstract: A method of controlling an electric desk which includes a device for controlling movement of the desk, the device including a key, a chip module, a controller, and a sensing element; when the key is depressed, the control method includes: S10: detecting, by a chip module, the trigger signals emitted from the sensing element, wherein if two trigger signals are detected, the control method proceeds to step S20, and otherwise proceeds to step S30; S20: transmitting, by a controller, the control instruction; S30: not transmitting, by a controller, the control instruction; when the key is released, the control method includes: T10: detecting, by the chip module, the trigger signals emitted from the sensing element, wherein if two trigger signals are detected, the control method proceeds to step T20, and otherwise proceeds to step T30; T20: maintaining, by the controller, the control instruction; T30: suspending, by the controller, the control instruction.

Abstract: An obstruction detecting apparatus, an obstruction detecting system, an electric lifting desk, and an electric lifting cupboard, which relate to the field of obstruction detection and render a higher obstruction detection sensitivity. The obstruction detecting apparatus includes a first housing and a second housing, the second housing being floatingly mounted on the first housing via a first elastic member, on the first housing being provided a circuit board, an obstruction detecting switch connected to the circuit board, and a rocking element rotatably mounted, one end of the rocking element being a free end abutting against the first housing, opposite end of the rocking element being a pressing end pressing down on the obstruction detecting switch, the free end, when being rotated, driving the pressing end to be disengaged from the obstruction detecting switch, whereby an obstruction signal is generated.

Abstract: Processor elements are described herein. A processor element comprises a silicon layer. The processor element further comprises one or more conductive electrodes. The processor element further comprises dielectric material having a non-uniform thickness, the dielectric material disposed at least between the silicon layer and the one or more conductive electrodes. In use, when a bias potential is applied to one or more of the conductive electrodes, the positioning of the one or more conductive electrodes and the non-uniform thickness of the dielectric material together define an electric field profile to induce a quantum dot at an interface between the silicon layer and the dielectric layer. Methods are also described herein.

Abstract: A transmission assembly and a lifting column are provided. The transmission assembly includes a first screw rod, a second screw rod, a first transmission sleeve sleeved over the first screw rod, and an actuating device for driving the first transmission sleeve to rotate. An end of the first screw rod proximal to the actuating device is fixed, and an end of the second screw rod distant from the actuating device is fixed. A second transmission sleeve is disposed between the first screw rod and the second screw rod, the second transmission sleeve and the first transmission sleeve are synchronously rotatable and are axially extensible and retractable relative to each other, and both ends of the second transmission sleeve are in threaded transmission connection with the first screw rod and the second screw rod, respectively.

Abstract: An exoskeleton device is disclosed. The exoskeleton device comprises a Bowden cable, a shank portion comprising a strut, and a foot portion coupled to the shank portion by a rotational joint. The foot portion comprises a heel lever and a pulley attached to the heel lever, wherein the strut of the shank portion is configured to redirect the Bowden cable toward the pulley, wherein the pulley is configured to redirect the Bowden cable back toward the shank portion, and wherein the Bowden cable is configured to generate torque by pulling the pulley. The exoskeleton device further comprises a midsole, wherein the midsole is releasably coupled to the lever, and wherein the midsole is configured to transmit force to a foot of a user.

Abstract: Disclosed is a linear actuator, including a drive motor, a transmission assembly, a rotary screw, a transmission nut, a clutch device, a self-locking device and a hand-pull release assembly. The clutch device is arranged between the transmission assembly and the rotary screw. The self-locking device is configured to generate frictional resistance to the rotary screw when the rotary screw rotates reversely, and the self-locking device includes a release torsion spring. The hand-pull release assembly includes a first driving member connected with the clutch device and a second driving member connected with the self-locking device, and has an initial state and a fully released state. During the process from the initial state to the fully released state, the first driving member drives the clutch device to disconnect power, and the second driving member drives the release torsion spring to extend.

Abstract: A control apparatus for a lifting mechanism, including: a mount box, a circuit board, and a toggle assembly, the circuit board including a lift switch which is elastically auto-reset and configured to control lifting, the toggle assembly being operable by pushing to close the lift switch. a limit portion is provided on each of two sidewalls of the toggle assembly, the limit portion being staggered with the lift switch along a depth direction of the toggle assembly and vertically movable with the toggle assembly; and a stop portion is provided on each of two sidewalls of the mount box; the toggle assembly includes a free state in which the stop portion vertically stops the limit portion and a pushed state in which the toggle assembly rotates about a pivot point which is a contact point between the stop portion and the limit portion.

Abstract: Disclosed is a linear actuator, including a drive motor, a transmission assembly, a rotary screw, a transmission nut, a clutch device, a self-locking device and a hand-pull release assembly. The clutch device is arranged between the transmission assembly and the rotary screw. The self-locking device is configured to generate frictional resistance to the rotary screw when the rotary screw rotates reversely, and the self-locking device includes a release torsion spring. The hand-pull release assembly includes a first driving member connected with the clutch device and a second driving member connected with the self-locking device, and has an initial state and a fully released state. During the process from the initial state to the fully released state, the first driving member drives the clutch device to disconnect power, and the second driving member drives the release torsion spring to extend.

Abstract: An electric actuator having a hand-screw release device, including: housing, drive motor, transmission assembly, rotary screw rod and driving nut, and further including: clutch device configured to engage or disengage power transmission between the transmission assembly and the rotary screw rod; a self-locking device configured to produce a friction resistance against the rotary screw rod when the rotary screw rod rotates reversely; and a hand-screw release device including a release rotary knob, the first driving member being connected to the clutch device, the second driving member being configured to connect the self-locking device, and the release rotary knob being turned to present an initial state and a completely released state, wherein in the course of switching from the initial state to the completely released state, the first driving member activates the clutch device to disengage the power connection, and the second driving member activates the release torsion spring to release.

Abstract: A device for quantum information processing is disclosed herein. According to examples, the device comprises a first plurality of confinement regions for confining spinful charge carriers for use as data qudits. The device further comprises a second plurality of confinement regions for confining spinful charge carriers for use as ancillary qudits, each confinement region of the second plurality of confinement regions couplable to measurement apparatus for measuring an ancillary qudit. The device further comprises a third plurality of confinement regions for confining spinful charge carriers, each confinement region of the third plurality of confinement regions situated between a first confinement region of the first plurality of confinement regions and a second confinement region of the second plurality of confinement regions and for use in mediating interactions between a data qudit of the first confinement region and an ancillary qudit of the second confinement region.

Abstract: Methods are disclosed for controlling charge stability in a device for quantum information processing. According to examples, a device for quantum information processing comprises a first plurality of confinement regions confining spinful charge carriers for use as qudits. The device further comprises a second plurality of confinement regions confining spinful charge carriers, each confinement region of the second plurality of confinement regions adjacent to a confinement region of the first plurality of confinement regions. The device further comprises one or more charge reservoirs, wherein each confinement region of the second plurality of confinement regions is attachable to a charge reservoir.

Abstract: A self-locking mechanism, a motor, and a linear actuator, which relate to the field of self-locking mechanisms and have a stable self-locking performance. The self-locking mechanism includes a friction ring and a mounting seat fixed relative to the friction ring, a notch being provided on the friction ring, the friction ring being sleeved over a rotary body to be braked, a mounting portion for mounting the friction ring being defined on the mounting seat, the mounting seat pressing the friction ring towards the notch to apply a braking force against the rotary body.