Embodiments of the present disclosure provides an anti-loosening device and a plunger pump. The anti-loosening device includes a first bracket, a second bracket and an elastic member. The first bracket includes a first clamping part defining a first accommodating space; a first connecting part extending in a first direction and fixedly connected to the first clamping part; and a limiting part fixedly connected to the first clamping part via the first connecting part, wherein the limiting part protrudes from the first connecting part in a second direction perpendicular to the first direction. The second bracket includes a second clamping part defining a second accommodation space, wherein the second clamping part is opposite to the first clamping part in the first direction; and a second connecting part extending in the first direction and fixedly connected to the second clamping part.

A locking assembly includes a first motor gear configured to be rotated in a first direction. The locking assembly also includes a second motor gear configured to be rotated in a second direction. The locking assembly also includes a first lock gear configured to be rotated in the first direction in response to the first motor gear rotating in the first direction. The locking assembly also includes a second lock gear configured to be rotated in the second direction in response to the second motor gear rotating in the second direction. The locking assembly also includes a locking mechanism configured to be rotated in the first direction in response to the first lock gear rotating in the first direction, and to be rotated in the second direction in response to the second lock gear rotating in the second direction.

The present invention relates to a locking mechanism or tool adapted for connection to a remotely operated vehicle and adapted for at least one of the group consisting of connection and disconnection of two plates. The present invention also concerns a system adapted for at least one of the group consisting of connection and disconnection of two plates, where the system comprises said locking mechanism or tool.

A method for controlling a control surface multirod actuator arrangement and the arrangement including: a first and a second multirod actuator configured to move or clamp around a first set of piston rods; a third multirod actuator configured to move or clamp around a second set of piston rods; a control unit configured to control motion of the first set of piston rods in a first motion mode and to control motion of the second set of piston rods in a second motion mode. Steps are moving at least one piston rod of first set of piston rods and/or clamping in parked position at least one piston rod of the second set of piston rods.

A locking unit for the parking lock of an automatic transmission, for locking the movement of a piston which is movable by a drive and which can be acted on with hydraulic pressure.

A locking unit for the parking lock of an automatic transmission, for locking the movement of a piston which is movable by a drive and which can be acted on with hydraulic pressure.

The present disclosure relates to a mechanical actuator having a modified locking mechanism and fewer components. The actuator has a cylinder, a locking recess formed on an interior wall of the cylinder, and a piston assembly that moves between an extended position and a retracted position responsive to fluid pressure within the cylinder. A lock is connected to the piston assembly and moves radially between a locked position and an unlocked position responsive to the fluid pressure within the cylinder.

The present disclosure relates to a mechanical actuator having a modified locking mechanism and fewer components. The actuator has a cylinder, a locking recess formed on an interior wall of the cylinder, and a piston assembly that moves between an extended position and a retracted position responsive to fluid pressure within the cylinder. A lock is connected to the piston assembly and moves radially between a locked position and an unlocked position responsive to the fluid pressure within the cylinder.

An electrolyzer stores of electrolytic cells, in which a pressing force applied to the stack is maintained by automatically adjusting the position of a locking mechanism of a safety device. The electrolyzer includes a stack obtained by stacking a plurality of electrolytic cells with membranes interposed therebetween, a pressing plate arranged on one end side in a stacking direction of the stack, an actuator which generates a pressing force along the stacking direction by moving the pressing plate, a safety device which is configured to maintain the pressing force by allowing the locking mechanism to come into contact with the contact plate to prevent the retraction of the pressing plate, when the actuator is not operated, and a control device which adjusts a distance between the locking mechanism and the contact plate within a specific range so as to maintain the pressing force which acts on the stack.

An actuator assembly including a fail-fix system is provided. The actuator assembly includes an output shaft, an input drive assembly, and a piston assembly. The piston assembly includes a body surrounding a piston moveable within the body. The body defines a first end and a second end opposite thereof between which the piston is moveable within the body. The piston assembly includes a spring disposed at the first end between the body and the piston. The piston assembly includes a friction mechanism disposed at the second end of the piston opposite of the first end. An adjustable area is defined within the body between the second end of the piston and the input drive assembly.