The present disclosure relates to the technical field of pipeline equipment, and discloses a transmission part, a valve drive assembly and a valve. The valve drive assembly includes a first transmission part, a second transmission part and a driving part, the first transmission part is configured to be detachably connected with the rotating shaft of the valve; the second transmission part is in transmission connection with the first transmission part, and can move in an axial direction of the rotating shaft relative to the first transmission part; the driving part is used to drive the second transmission part to rotate so as to drive the first transmission part and the rotating shaft of the valve to rotate. With the application of the valve drive assembly of the present disclosure, even if the rotating shaft moves axially in the process of rotation, the first transmission part moves therewith, and can always maintain cooperation with the second transmission part, thus realizing the transmission between the two. Therefore, the valve drive assembly can be adapted to the axial displacement of the rotating shaft, and has better adaptability. The transmission part provided in the present disclosure can be applied to the above-mentioned valve drive assembly. The valve provided in the present disclosure includes the valve drive assembly described above.

An electric actuator comprises a motor and a plate, wherein the motor has an electric contact in electrical contact with the plate. An intermediate shaft is in contact with the plate. A controller is fixed to an upper part of the actuator. The controller has an electrical output electrically communicating with the electric contact of the motor through the intermediate shaft and the plate.

A throttle valve device includes a coil spring arranged in a body between a valve gear and a valve and having a spring end extending radially outward. A first guide covers an end of the coil spring and includes a first guide hook that contacts the spring end. A body hook in the body is capable of contacting a tip end part of the first guide hook. A valve gear hook in the valve gear is capable of contacting a base end part of the first guide hook. The first guide hook has a protrusion protruding toward the spring end between the tip end part and the base end part. The first guide hook is deformable by receiving the spring force at the protrusion as an effort while a fulcrum is at a contact between the first guide hook and the body hook or the valve gear hook.

A diverter valve includes a diverter valve assembly, a diverter valve transmission assembly, a drive motor and a control device used to control the drive motor. Controlled by the control device, the drive motor drives the diverter valve transmission assembly to perform a transmission action, so as to drive the diverter valve assembly to perform switching actions. The diverter valve transmission assembly is an intermittent gear transmission assembly. Driven by the drive motor, each time the intermittent gear transmission assembly performs the transmission action at least once, the control device controls the drive motor to stop driving. In this way, during the action process, not only the transmission is stable and reliable, the noise is low, but it is also wear-resistant enough under high-frequency use, which can meet the requirements of long-term working consumption of the beverage machine.

The disclosure relates to a motorised air circulation valve including a gear motor, a valve body, and a rotary shaft provided with a shutter. The rotary shaft is rotated by the gear motor, where gear motor includes a set of reduction gears, a brushless electric motor formed by a rotor having N pairs of magnetised poles connected to a pinion of the set of reduction gears, and the pinion drives an output wheel rigidly connected to the rotary shaft. The electric motor includes a stator part having at least two coils, the stator part having two angular sectors, alpha1 and alpha2, of respective radii R1 and R2, with R1 being greater than R2, and the center of the radii and the angular sectors being defined relative to the center of rotation of the rotor. The angular sector alpha1 is defined by the angular deviation between the axes of the first and last coils considered in a circumferential direction of the motor, the angular sector alpha1 is less than 180° and includes the coils, the sector alpha2 is devoid of a fully fitted coil, an end of the gear motor defines a side of the gear motor, and the angular sector alpha2 of the stator part is positioned facing the side.

Disclosed is a valve control device, comprising: a drive unit; an execution mechanism, connected to the drive unit by a transmission mechanism, attached to a valve, and configured to be able to move under the drive of the drive unit, so as to drive the valve to rotate; and a control module, connected to the drive unit, and configured to be able to control the drive unit. The valve control device according to the present invention may be mounted on an existing manually operated valve in a pipeline such as a water pipeline or a gas pipeline, and it is not necessary to remodel the existing valve and pipeline, so that the valve can be remotely, intelligently, and automatically controlled, and a water leakage situation, a gas leakage situation or the like caused by untimely response are avoided.

Provided is a compact spring return actuator. The actuator includes a driving shaft configured to be rotated by receiving a driving force from a motor, a driven shaft configured to open and close a valve by being rotated by the driving shaft, a deceleration means configured to decelerate a rotational force that is transmitted to the driven shaft, the deceleration means including a differential planetary gear decelerator provided at the driving shaft, and includes an emergency return means provided with an elastic body and an actuation shaft which is configured to convert an elastic force of the elastic body to a rotational force and to transmit the rotational force and which is engaged with the differential planetary gear decelerator, thereby being configured to rotationally return the valve when power is blocked.

An electrically operated valve capable of quickly achieving reliable switching between multiple flow paths. The electrically operated valve includes a driving mechanism, an executing mechanism and a valve body assembly, wherein the driving mechanism includes a bushing and an output shaft located in the bushing, the executing mechanism includes a valve stem connected to the output shaft and a valve core connected to the valve stem, and the valve core is provided with a first flow channel and a second flow channel; the valve body assembly includes a valve body and a valve seat, the bushing forms a space isolated from the outside, the output shaft and a connecting portion between the valve stem and the output shaft are located in this space, and the valve body has a cavity, four through holes and a plug port.

An actuator 1 includes a housing 2, an output shaft 3 protruding from the inside of the housing 2 to the outside, a motor 4 provided in the housing 2, and a reduction mechanism 5 that connects the motor 4 with the output shaft 3. The reduction mechanism 5 includes a worm gear, in which a worm 51 provided at a front end of a drive shaft 42 protruding from a main body 43 of the motor 4 and a worm wheel 52 rotating integrally with the output shaft 3 are engaged. A spindle 41 for increasing an inertia is provided between the worm 51 of the drive shaft 42 and the motor body 43.

A fail-safe actuator for moving a part has in each case a drive (18, 118) by means of which a first or a second drive train (24, 26) can be moved. The drive trains (24, 26) in each case have their own output shaft (34, 38) and can be actuated independently of one another. An energy storage device is coupled with the second output shaft (38), wherein a holding device selectively holds the energy or releases it from the energy storage device, so that the second output shaft (38) can be moved. A rotary entrainment of the first output shaft (34) ensures that in the event of a failure of the drive (18) this is moved into a specified end position. The two output shafts (34, 38) are set in motion via gear wheels (32, 36) if the drive trains are actuated. An assembly unit consisting of actuator and moved part is also described.