Examples of the present disclosure relate to ratchets and include ratchets having a positive stop ratchet mechanism which controls the movement of a pawl and/or pusher with various geometric configurations and using various materials.

A screwdriver, including driver bit sleeve, revolving wheel-shaped driver bit holder and pushrod, the revolving wheel-shaped screwdriver bit holder is rotatably arranged at the rear side of the driver bit sleeve, the revolving wheel-shaped driver bit holder is distributed with axial containing hole containing driver bit and the containing hole can be turned to axially coincide with the inner hole of the driver bit sleeve; pushrod is arranged at the rear side of the revolving wheel-shaped driver bit holder and axially coincides with the inner hole of the driver bit sleeve, the inner hole of the driver bit sleeve includes torque transmission segment at the front part and guiding segment at the rear part, the hole wall of the guiding segment is arranged as guiding surface; and it can also include handle, pushbutton set, pushrod which extends into one of containing holes of driver bit holder when pushbutton set is positioned at first positioning portion of the front part of slideway on the handle, pushing the driver bit in the containing hole toward the driver bit sleeve on the handle until the driver bit extends out of the driver bit sleeve, and the pushrod is positioned at the rear side of the driver bit holder when the pushbutton set is positioned at the rear part of the slideway on the handle and take the corresponding driver bit back into the corresponding containing hole. Fewer constituent parts, simple structured, easy to replace the driver bit.

A screwdriver, including driver bit sleeve, revolving wheel-shaped driver bit holder and pushrod, the revolving wheel-shaped screwdriver bit holder is rotatably arranged at the rear side of the driver bit sleeve, the revolving wheel-shaped driver bit holder is distributed with axial containing hole containing driver bit and the containing hole can be turned to axially coincide with the inner hole of the driver bit sleeve; pushrod is arranged at the rear side of the revolving wheel-shaped driver bit holder and axially coincides with the inner hole of the driver bit sleeve, the inner hole of the driver bit sleeve includes torque transmission segment at the front part and guiding segment at the rear part, the hole wall of the guiding segment is arranged as guiding surface; and it can also include handle, pushbutton set, pushrod which extends into one of containing holes of driver bit holder when pushbutton set is positioned at first positioning portion of the front part of slideway on the handle, pushing the driver bit in the containing hole toward the driver bit sleeve on the handle until the driver bit extends out of the driver bit sleeve, and the pushrod is positioned at the rear side of the driver bit holder when the pushbutton set is positioned at the rear part of the slideway on the handle and take the corresponding driver bit back into the corresponding containing hole. Fewer constituent parts, simple structured, easy to replace the driver bit.

A torque tool is provided, including: a main body, a driving portion, a torque mechanism and an adjusting mechanism. The main body defines an axial direction. The driving portion is disposed on an end of the main body. The torque mechanism is non-rotatably disposed within the main body. The adjusting mechanism includes a plurality of first engaging portions disposed on the main body and an adjusting member rotatably disposed on the main body, and the adjusting member includes a plurality of second engaging portions releasably engaged with the plurality of first engaging portions. The main body defines a center line parallel to the axial direction, and as viewed in the axial direction, hypothetical lines extending between the plurality of second engaging portions and the center line define a plurality of included angles, and at least two of the plurality of included angles have different angle sizes.

A torque tool is provided, including: a main body, a driving portion, a torque mechanism and an adjusting mechanism. The main body defines an axial direction. The driving portion is disposed on an end of the main body. The torque mechanism is non-rotatably disposed within the main body. The adjusting mechanism includes a plurality of first engaging portions disposed on the main body and an adjusting member rotatably disposed on the main body, and the adjusting member includes a plurality of second engaging portions releasably engaged with the plurality of first engaging portions. The main body defines a center line parallel to the axial direction, and as viewed in the axial direction, hypothetical lines extending between the plurality of second engaging portions and the center line define a plurality of included angles, and at least two of the plurality of included angles have different angle sizes.

A push-pull bit detaching and mounting tool including a casing is described herein. A ratchet wheel seat having a conveying passage is disposed at an end portion of the casing. A ratchet wheel head having bit mounting holes is disposed on the ratchet wheel seat. A ratchet wheel control mechanism is disposed between the ratchet wheel head and the ratchet wheel seat. An accommodating groove is formed on the casing. A bit storage seat is disposed in the accommodating groove. A plurality of storage holes are formed on the bit storage seat in the circumferential direction. A positioning structure is disposed between the bit storage seat and the accommodating groove. The casing has a mounting seat. A push-pull rod having a first permanent magnet at an end portion is disposed on the mounting seat, and an axial positioning mechanism is disposed between the push-pull rod and the mounting seat.

A push-pull bit detaching and mounting tool including a casing is described herein. A ratchet wheel seat having a conveying passage is disposed at an end portion of the casing. A ratchet wheel head having bit mounting holes is disposed on the ratchet wheel seat. A ratchet wheel control mechanism is disposed between the ratchet wheel head and the ratchet wheel seat. An accommodating groove is formed on the casing. A bit storage seat is disposed in the accommodating groove. A plurality of storage holes are formed on the bit storage seat in the circumferential direction. A positioning structure is disposed between the bit storage seat and the accommodating groove. The casing has a mounting seat. A push-pull rod having a first permanent magnet at an end portion is disposed on the mounting seat, and an axial positioning mechanism is disposed between the push-pull rod and the mounting seat.

The present disclosure is a bi-directional screwdriver, which includes a handle, a main shaft, a gearing which includes a driving gear, a driven gear, a transmission seat and an idle gear 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. The handle rotates the driving gear. A grip ring is securely provided outside the idle gear axle. When the grip ring is gripped and the handle is rotated to rotate the driving gear, the driving gear rotates the driven gear in a reverse direction through the idle gear. The driving gear also has a first inside ratchet surface, and the driven gear also has a second inside ratchet surface. And the present invention also includes a reversing means which includes a reversing member, a first pawl member and a second pawl member, and a direction switch, in which the driving gear, the driven gear and the transmission seat are all sleeved on the reversing member, the reversing member is sleeved on the main shaft and able to rotate the main shaft.

The present disclosure is a bi-directional screwdriver, which includes a handle, a main shaft, a gearing which includes a driving gear, a driven gear, a transmission seat and an idle gear 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. The handle rotates the driving gear. A grip ring is securely provided outside the idle gear axle. When the grip ring is gripped and the handle is rotated to rotate the driving gear, the driving gear rotates the driven gear in a reverse direction through the idle gear. The driving gear also has a first inside ratchet surface, and the driven gear also has a second inside ratchet surface. And the present invention also includes a reversing means which includes a reversing member, a first pawl member and a second pawl member, and a direction switch, in which the driving gear, the driven gear and the transmission seat are all sleeved on the reversing member, the reversing member is sleeved on the main shaft and able to rotate the main shaft.

A ratcheting driver comprises a driving mechanism combined between a handle and a working end for translating rotary motion from the handle to the working end. A switch engages the driving mechanism to switch the rotational direction of the working end between clockwise rotation and counter-clockwise rotation with an optional locked position that locks the working end. Two pairs of cooperating pawls are provided that are selectively engaged by the switch with one pawl in each of the two pairs of cooperating pawls selectively engaging one of a first ratchet gear and a second ratchet gear. Each pawl in the pair of cooperating pawls are positioned axially apart from each other in alignment with one of the first ratchet gear and the second ratchet gear.