69results about How to "Smooth lock" patented technology

The invention discloses a display screen adjusting arm. The display screen adjusting arm comprises a base, a rotating arm and a connecting arm, wherein the base, the rotating arm and the connecting arm are hinged sequentially, the rotating arm comprises at least a group of first rotating arms, a second rotating arm and rotating arm casings, first rotating arms are arranged in a parallel displaceable mode, rotating arm casings cover the outsides of first rotating arms and the outside of the second rotating arm, the connecting arm comprises at least a group of first connecting arms, a second connecting arm and connecting arm casings, first connecting arms are arranged in a parallel displaceable mode, connecting arm casings cover the outsides of first connecting arms and the outside of the second connecting arm, locking mechanisms which lock rotating arm casings and connecting arm casings are arranged on opposite faces of rotating arm casings and connecting arm casings, and locking mechanisms comprise locking grooves and locking sheet mechanisms. The invention also provides a corresponding device. By the aid of the display screen adjusting arm and the device, the problems that only angle adjustment can be achieved and display screens can not be locked when necessary in the prior art can be solved.

This slide locking device is incorporated in a opening-assistance device, so as to smoothly lock and unlock a reciprocating part so that it can move in opposite directions. The device includes a reciprocating part 21 that can move forward and backward in the device's longitudinal direction, locking parts 101 that can be engaged with or disengaged from the reciprocating part 21, and that lock the movement of the reciprocating part 21 when engaged with the reciprocating part 21, a first elastic part 24 that applies force to the locking parts 101 so as to move the locking parts 101 in the direction that disengages them from the reciprocating part 21, a second elastic part 29 that applies force to the locking parts 101 so as to move the locking parts 101 in the direction that engages them with the reciprocating part 21, and holding means 102 that hold the first elastic part 24 in a condition for storing an elastic force that is larger than the maximum elastic force of the second elastic part 29, and that prevent the elastic force of the first elastic part 24 from acting against the second elastic part 29 when the second elastic part 29 moves the locking parts 101 in the direction that engages them with the reciprocating part 21.

The invention relates to a preloaded oil cylinder and hoisting machinery. The preloaded oil cylinder comprises a cylinder tube (10) and a cylinder rod (20); the cylinder rod (20) is arranged in the cylinder tube (10); lock holes (25) are formed in one of the cylinder tube (10) and the cylinder rod (20); a lock piece (13) is arranged on the other of the cylinder tube (10) and the cylinder rod (20);and the lock piece (13) is inserted into the lock holes (25) so as to lock the cylinder rod (20) relative to the cylinder tube (10). The hoisting machinery comprises the preloaded oil cylinder. The cylinder rod is locked and unlocked by inserting the lock piece into the lock holes. Compared with a pawl form adopted in the prior art, the cylinder rod can be locked and unlocked more smoothly in themode, so that the problem that the cylinder rod cannot be locked is reduced.

The invention discloses a press locking structure and an automobile with the press locking structure. The press locking structure comprises a plate body, a guide wall, a middle guide part, a first spring and a support frame, wherein the plate body comprises a horizontal plate and a vertical plate, the horizontal plate comprises a first plate and a second plate in separated arrangement, the guide wall is arranged on the second plate, the middle guide part is arranged on the guide wall, a a clamp groove is formed in one end, far away of the first plate, of the middle guide part, one end of the first spring is arranged on the vertical plate, the first end of the support frame is rotatablely arranged on the first plate, a guide block is arranged on the second end of the support frame, and the support frame can rotate between a locking position, positioned in the clamp block, of the guide block and an unlocking position, disengaging from the clamp groove, of the guide block. The press locking structure according to the embodiment of the invention has the advantages that the structure is simple and reasonable, the realization is easy, and the failure cannot be caused by high use frequency.

The invention belongs to the field of door fences and particularly relates to a safe novel protective door fence lock. The novel protective door fence lock comprises a lock seat with a lock hole and a locking device with a lock pin, the lock seat is matched with the locking device, the locking device comprises a locking rack, a lock pin part, a lock case and a transmission part, the locking rack is used for being fixedly connected with a door fence, the lock pin part is located at the front end of the locking rack and rotatable on a gravity surface for unlocking, the lock case is sleeved on the locking rack and slidable up and down relative to the locking rack, the transmission part is installed between the locking rack and the lock case and used for controlling the lock case to slide up and down to drive the lock pin to upwards or downwards rotate for locking or unlocking, a lock case reset part and a lock pin reset part are mounted in the lock case, and the lock pin part comprises a lock pin connecting frame and the lock pin. According to the novel protective door fence lock, the lock is a double secure lock, a button is pressed down and then the lock case is pressed down to downwards slide to drive the lock pin to downwards rotate, then the lock pin gets out of the lock hole for unlocking, the operation of the double secure lock can be simply finished by only one hand, the operation is convenient, locking and unlocking are simple and smooth, and the safety of the double secure lock is good.

The invention discloses a door control device, system and method suitable for a shield door and a safety door. The device comprises a microcontroller and a drive unit. The drive unit further comprises two sets of drive modules. The microcontroller is connected with one set of drive module of the drive unit and used for controlling an external direct current motor. The microcontroller is further connected with the other set of drive module of the drive unit, used for controlling the other external direct current motor or a door head lock or used for backup, and compatibility of the shield door and the safety door is achieved. The microcontroller outputs PWM waves to the drive modules, and the direct current motors are driven by the drive modules to finish the actions including forward rotation, backward rotation, acceleration, deceleration and constant speed, or the door head lock is driven to finish the opening and closing actions. When the door control device is applied to the safety door, the two paths of direct current motors are the same in step of actions. The door control device, system and method can be suitable for the shielding door and the safety door at the same time, the safety and reliability of the system are improved, and meanwhile the requirement of equipment installing for space is lowered.