A filter turning mechanism is attached to an engine in proximity to a filter (such as an oil filter), and may be used to install or remove a filter by turning the filter. The filter turning mechanism contacts a filter, and rotates the filter when the filter turning mechanism is rotated with a tool. One implementation of the filter turning mechanism includes an inner drive gear and a filter drive mechanism. The inner drive gear normally spins freely within the filter drive mechanism, but when pushed into the filter drive mechanism with a suitable tool such as a ratchet extension, the inner drive gear engages the filter drive mechanism, thereby causing rotation of the inner drive gear to rotate the filter drive mechanism as well, which in turn rotates the filter.

A filter turning mechanism is attached to an engine in proximity to a filter (such as an oil filter), and may be used to install or remove a filter by turning the filter. The filter turning mechanism contacts a filter, and rotates the filter when the filter turning mechanism is rotated with a tool. One implementation of the filter turning mechanism includes an inner drive gear and a filter drive mechanism. The inner drive gear normally spins freely within the filter drive mechanism, but when pushed into the filter drive mechanism with a suitable tool such as a ratchet extension, the inner drive gear engages the filter drive mechanism, thereby causing rotation of the inner drive gear to rotate the filter drive mechanism as well, which in turn rotates the filter.

A dual-setting rotating system selectively provides unidirectional rotation to a drive shaft. Along with the drive shaft, the system includes a primary ratchet gear fixedly disposed on the drive shaft and configured to motivate the drive shaft in principal rotation. A secondary ratchet gear is coaxial with the primary ratchet gear and rotatably attached about at least a portion of the drive shaft. A pinion gear is axially-aligned with the drive shaft and operably engaged with the secondary ratchet gear and a shaft gear to motivate the drive shaft during retrograde rotation. The shaft gear is rigidly attached to and coaxial with the drive shaft. A clutch plate spans the primary and secondary ratchet gear while a main body encloses at least a portion of the clutch plate.

A dual-setting rotating system selectively provides unidirectional rotation to a drive shaft. Along with the drive shaft, the system includes a primary ratchet gear fixedly disposed on the drive shaft and configured to motivate the drive shaft in principal rotation. A secondary ratchet gear is coaxial with the primary ratchet gear and rotatably attached about at least a portion of the drive shaft. A pinion gear is axially-aligned with the drive shaft and operably engaged with the secondary ratchet gear and a shaft gear to motivate the drive shaft during retrograde rotation. The shaft gear is rigidly attached to and coaxial with the drive shaft. A clutch plate spans the primary and secondary ratchet gear while a main body encloses at least a portion of the clutch plate.

In a bi-directional screwdriver, the screwdriver may include a handle, a main housing, and a gearing assembly, which is mounted on the idle gear axle on the transmission seat and is fitted between the driving gear and the driven gear for transferring motion. When the grip ring is gripped and the handle is rotated to rotate the driving gear, the driving gear may rotate the driven gear in a reverse direction through the idle gear. The screwdriver may include a reversing means which can include a reversing member, a pawl, and a direction collar, in which the driving gear, the driven gear, and the transmission seat are all sleeved on the main housing. The reversing member may be sleeved into the main housing and able to rotate the main housing. The direction collar may engage with and rotate the reversing member, causing a change of output direction.

In a bi-directional screwdriver, the screwdriver may include a handle, a main housing, and a gearing assembly, which is mounted on the idle gear axle on the transmission seat and is fitted between the driving gear and the driven gear for transferring motion. When the grip ring is gripped and the handle is rotated to rotate the driving gear, the driving gear may rotate the driven gear in a reverse direction through the idle gear. The screwdriver may include a reversing means which can include a reversing member, a pawl, and a direction collar, in which the driving gear, the driven gear, and the transmission seat are all sleeved on the main housing. The reversing member may be sleeved into the main housing and able to rotate the main housing. The direction collar may engage with and rotate the reversing member, causing a change of output direction.

A crimping tool is provided. The crimping tool includes a stationary jaw and a movable jaw. The movable jaw is arranged adjacent the stationary jaw, the movable jaw being movable from an open position to a closed position. A linkage is operably coupled to the movable jaw on one end, the linkage rotatable about an axle. A first input member is operably coupled to the linkage to rotate the linkage about the axle, the first input member rotating about a first axis. A second input member is operably coupled to the linkage to rotate the linkage about the axle, the second input member rotating about a second axis, the second axis being substantially perpendicular to the first axis.

A crimping tool is provided. The crimping tool includes a stationary jaw and a movable jaw. The movable jaw is arranged adjacent the stationary jaw, the movable jaw being movable from an open position to a closed position. A linkage is operably coupled to the movable jaw on one end, the linkage rotatable about an axle. A first input member is operably coupled to the linkage to rotate the linkage about the axle, the first input member rotating about a first axis. A second input member is operably coupled to the linkage to rotate the linkage about the axle, the second input member rotating about a second axis, the second axis being substantially perpendicular to the first axis.

Disclosed a screw tightening angle conversion head, including a conversion head body, wherein one end of which is fixedly provided with a mounting groove, a fixed cover plate is fixedly arranged at the upper end of the mounting groove, a transmission worm is rotatably arranged at one end inside the conversion head body close to the mounting groove, one end of the transmission worm penetrates through the conversion head body and extends out from an outer end, a rotating seat is fixedly arranged at a rotational junction between the transmission worm and the inside of the conversion head body, annular worm teeth are fixedly arranged at the outer side of the transmission worm, a rotating shaft is rotatably arranged at one end inside the conversion head body away from the transmission worm, and the outer wall of the rotating shaft is fixedly connected with an intermediate gear.

Disclosed a screw tightening angle conversion head, including a conversion head body, wherein one end of which is fixedly provided with a mounting groove, a fixed cover plate is fixedly arranged at the upper end of the mounting groove, a transmission worm is rotatably arranged at one end inside the conversion head body close to the mounting groove, one end of the transmission worm penetrates through the conversion head body and extends out from an outer end, a rotating seat is fixedly arranged at a rotational junction between the transmission worm and the inside of the conversion head body, annular worm teeth are fixedly arranged at the outer side of the transmission worm, a rotating shaft is rotatably arranged at one end inside the conversion head body away from the transmission worm, and the outer wall of the rotating shaft is fixedly connected with an intermediate gear.