A hand-operated tool lock mechanism secures a pair of grips in a closed locked state. The mechanism includes: a holding recess at the end of one grip; an engaging recess at the end of the other grip; a ring component removably and rotatably disposed in the holding recess, which engages with the engaging recess placing the grips in the closed state; and a catch for removably and rotatably inserting the ring component in the holding recess. The holding recess and the catch hold the ring component oriented away from the other grip when the ring component is disengaged from the engaging recess. When the hand-operated tool is used, the releasing of the ring component from the locked state causes the ring component to be held between the holding recess and the catch in an orientation in which the ring component does not contact the other grip.

A hand-operated tool lock mechanism secures a pair of grips in a closed locked state. The mechanism includes: a holding recess at the end of one grip; an engaging recess at the end of the other grip; a ring component removably and rotatably disposed in the holding recess, which engages with the engaging recess placing the grips in the closed state; and a catch for removably and rotatably inserting the ring component in the holding recess. The holding recess and the catch hold the ring component oriented away from the other grip when the ring component is disengaged from the engaging recess. When the hand-operated tool is used, the releasing of the ring component from the locked state causes the ring component to be held between the holding recess and the catch in an orientation in which the ring component does not contact the other grip.

A pair of safe pet nail clippers includes a first handle and a second handle correspondingly disposed and pivotedly connected to each other. The first and second handles respectively include a blade portion and a handle portion. Blades of the blade portions of the first and second handles are provided in a concave shape. When the handle portions of the first and second handles are relatively opened to the maximum extent, an initial trimming hole is formed between the concave blades of the first and second handles. The first and second handles are provided therebetween with an adjustment mechanism for adjusting the relative opening of the handle portions of the first and second handles and the caliber of the initial trimming hole.

A pair of safe pet nail clippers includes a first handle and a second handle correspondingly disposed and pivotedly connected to each other. The first and second handles respectively include a blade portion and a handle portion. Blades of the blade portions of the first and second handles are provided in a concave shape. When the handle portions of the first and second handles are relatively opened to the maximum extent, an initial trimming hole is formed between the concave blades of the first and second handles. The first and second handles are provided therebetween with an adjustment mechanism for adjusting the relative opening of the handle portions of the first and second handles and the caliber of the initial trimming hole.

Scissors include first and second body portions, and a pivot support portion that supports the first and second body portions. The scissors further include a movable transmission member attached to a handle of the first body portion, a spring provided between the handle of the first body portion and the movable transmission member, and rows of teeth configured to transmit urging force from the spring to the second body portion through the movable transmission member. The pivot support portion has a pivot and a pivot hole that enables the first and second body portions to be assembled and disassembled. The rows of teeth are provided on the movable transmission member and a handle of the second body portion, and can be attached to or detached from each other when assembling and disassembling the first and second body portions.

Scissors include first and second body portions, and a pivot support portion that supports the first and second body portions. The scissors further include a movable transmission member attached to a handle of the first body portion, a spring provided between the handle of the first body portion and the movable transmission member, and rows of teeth configured to transmit urging force from the spring to the second body portion through the movable transmission member. The pivot support portion has a pivot and a pivot hole that enables the first and second body portions to be assembled and disassembled. The rows of teeth are provided on the movable transmission member and a handle of the second body portion, and can be attached to or detached from each other when assembling and disassembling the first and second body portions.

A control device of a cutting tool formed by a first component and a second component pivotally connected to each other is pivotally connected to the second component. The control device can be pushed to act on the second component. The cutting tool performs multi-stage or one-time cutting according to the control device being pushed to the required position. Moreover, the first component and the second component are close to or away from each other under control of the control device.

A control device of a cutting tool formed by a first component and a second component pivotally connected to each other is pivotally connected to the second component. The control device can be pushed to act on the second component. The cutting tool performs multi-stage or one-time cutting according to the control device being pushed to the required position. Moreover, the first component and the second component are close to or away from each other under control of the control device.

A hand-operated tool lock mechanism secures a pair of grips in a closed locked state. The mechanism includes: a holding recess at the end of one grip; an engaging recess at the end of the other grip; a ring component removably and rotatably disposed in the holding recess, which engages with the engaging recess placing the grips in the closed state; and a catch for removably and rotatably inserting the ring component in the holding recess. The holding recess and the catch hold the ring component oriented away from the other grip when the ring component is disengaged from the engaging recess. When the hand-operated tool is used, the releasing of the ring component from the locked state causes the ring component to be held between the holding recess and the catch in an orientation in which the ring component does not contact the other grip.

A hand-operated tool lock mechanism secures a pair of grips in a closed locked state. The mechanism includes: a holding recess at the end of one grip; an engaging recess at the end of the other grip; a ring component removably and rotatably disposed in the holding recess, which engages with the engaging recess placing the grips in the closed state; and a catch for removably and rotatably inserting the ring component in the holding recess. The holding recess and the catch hold the ring component oriented away from the other grip when the ring component is disengaged from the engaging recess. When the hand-operated tool is used, the releasing of the ring component from the locked state causes the ring component to be held between the holding recess and the catch in an orientation in which the ring component does not contact the other grip.