The present invention relates to a three-piece wrench comprising: a wrench body with a working head and a shaft, the working head is located at a front end of the shaft, the shaft has a length; a first extension rod with a length; and a second extension rod with a length; the lengths of the first extension rod and the second extension rod are greater than the length of the shaft; combination of the wrench body, the first extension rod and the second extension rod provides various usage lengths of the wrench, so that different connection types can be used to form required lengths according to requirements.

A bicycle tool according to the disclosure comprises a valve connection means. A tool element is connected with the valve connection means. The tool element is connected with the valve connection means in its longitudinal direction such that an elongated bicycle tool is formed.

A ratchet wrench structure includes a body having a head portion with a first, second, and third housings connected; a ratchet block rotatably disposed in the first housing and peripherally provided with plural teeth; two locking members having a flat top surface with a pillar thereon and an opposite flat bottom surface, and disposed in the third housing and laterally movable for engaging the teeth, with a resilient member between the two locking members; a direction controller disposed in the second housing and having a direction controlling recess for receiving the pillars; and a positioning device. The direction controlling recess has an opening end expanding outward. The positioning device positions the direction controller, so as to drive the two locking members to engage the ratchet block. Therefore, the ratchet block is controlled to drive an object in clockwise or counterclockwise direction.

A ratchet wrench with a positioning structure includes a drive bar, a rotary head, and a locking button. The drive bar includes a fork arm, a fork opening formed at the fork arm, an axial hole communicating with the fork opening, and a radial hole communicating with the axial hole. The rotary head is pivotally connected to two ends of the fork arm. The rotary head includes a round housing, a plurality of positioning recesses disposed on the round housing, and a pivot axis located at the rotary head and passing through two ends of the fork arm. The pivot axis is parallel to the radial hole. The locking button includes a locking rod disposed in the radial hole and a latch bar disposed in the axial hole. The locking rod is transversely movable in association with movement of the latch bar.

A ratchet wrench having a flexible positioning structure includes a drive bar, a rotary head, and a locking button. The drive bar includes a fork arm, an axial hole, and a radial hole communicating with the axial hole. The rotary head is pivotally connected to the fork arm; the rotary head includes a round housing, a plurality of positioning recesses disposed on the round housing, and a pivot axis passing through the rotary head and two ends of the fork arm. The pivot axis is perpendicular to the radial hole. The locking button includes a flexible fastener inserted through the radial hole and a latch bar disposed in the axial hole. The flexible fastener is flexibly movable in association with movement of the latch bar, so that the latch bar is engaged with or released from any of the positioning recesses.

A ratchet wrench having a quick release structure includes a drive bar, a rotary head, and a locking switch. The drive bar includes a fork arm, a fork opening formed at the fork arm, an axial hole communicating with the fork opening, and a radial hole communicating with the axial hole. The rotary head is pivotally connected to two ends of the fork arm. The rotary head includes a round housing, a plurality of positioning recesses disposed on the round housing, and a pivot axis passing through the rotary head. The pivot axis is perpendicular to the radial hole. The locking switch includes a turning element disposed in the radial hole and a latch element disposed in the axial hole. The turning element rotatably drives the latch element to move axially, and the latch element is engaged with or released from any positioning recess.

A ratchet wrench having a positioning mechanism includes a drive bar, a rotary head, and a locking button. The drive bar includes a fork arm, an axial hole communicating with the fork opening, and a radial hole communicating with the axial hole. The rotary head is pivotally connected to two ends of the fork arm; the rotary head includes a round housing, a plurality of positioning recesses disposed on the round housing, and a pivot axis passing through rotary head. The pivot axis is perpendicular to the radial hole. The locking button includes a locking rod disposed in the radial hole and a latch bar disposed in the axial hole. The locking rod is radially movable in association with movement of the latch bar, and the latch bar is engaged with or disengaged from any of the positioning recesses.

A quickly rotary and expandable ratchet wrench includes a drive bar, an operation handle, a rotary head, and an operation ring. The drive bar includes a bar body and a fork arm connected to the bar body. The bar body includes a plurality of retaining recesses spaced apart from each other and a groove passing through each of the retaining recesses. The operation handle includes a retaining element slidable to position in any of the retaining recesses and a restraint element protruding into the groove. The rotary head is pivotally connected to two ends of the fork arm. The operation ring sleeves on one end of the operation handle, and the retaining element is movable in association with movement of the operation ring to be positioned in any of the retaining recesses, and the operation ring is rotatable with respect to the drive bar.

A ratchet wrench comprising a ratchet head with a cylindrical bore having a central axis; a handle; a drive member (26) with a rotation axis (W-W) retained within the cylindrical bore for rotation about the central axis; and a toothed ratchet pawl (42); a cylindrical array of straight ratchet teeth arranged about one of the cylindrical bore or the drive member; and a pawl recess (36) arranged to support the pawl. The pawl may mesh with the ratchet teeth for transmission of rotation of the handle in a first direction to the drive member about the rotation axis or disengage from the ratchet teeth to decouple rotation of the handle in a second direction from the drive member. Support (37a, 37b, 46, 48, 50) for the pawl in the recess is shaped to accommodate divergence between the central axis and the rotation axis.

A ratchet wrench capable of rotating quickly and driving rotation includes a handle, a rotary head, a positioning mechanism, and a sleeve. The handle includes an arm and a bar body. The bar body includes an accommodating slot; the arm includes a through hole. The rotary head is connected to the arm and includes recess portions. The positioning mechanism includes a positioning element, a resilient body, and a block element. The resilient body receives the positioning element and is received in the through hole, the positioning element is correspondingly disposed in any of the recess portions, and the block element is connected to the positioning element. The sleeve receives the bar body and operably drives the block element to slide in the accommodating slot, so that the positioning element is positioned and selectively engaged with any recess portion.