Crimping pliers
OwnerMao Lininventor
Life of this patent
Estimating the term…
Abstract
A pair of crimping pliers is provided. The crimping pliers include a large handle, a small handle, a connecting rod, and a clamp fixing plate that form a hinged four-rod mechanism. Two ends of the connecting rod are connected between a rear part of the large handle and a rear part of the small handle. The clamp fixing plate is connected between a front part of the large handle and a front part of the small handle. A rear part of the connecting rod is bent and extends towards a tail end of the large handle, thereby extending a force arm. A first returning spring is connected between a back side of a bent part of the clamp fixing plate and the large handle. A pawl is rotatable and installed at the large handle. The pawl matches and meshes with outer pawl teeth of the clamp fixing plate.
Claims2
Crimping pliers, comprising:
- a first handle (1), a second handle (2),
- a connecting rod (3), a clamp fixing plate (4), a first returning spring (5), a pawl (6), a second returning spring (7), mounting blocks (8), and plier beaks (9);
- wherein the first handle (1), the second handle (2), the connecting rod (3), and the clamp fixing plate (4) form a hinged four-rod mechanism;
- two ends of the connecting rod (3) are connected between a rear part of the first handle (1) and a rear part of the second handle (2);
- the clamp fixing plate (4) is connected between a front part of the first handle (1) and a front part of the second handle (2);
- a front part of the clamp fixing plate (4) is bent towards a side of the first handle (1) and forms a clamp head with the front part of the first handle (1);
- the first handle (1) comprises two first plates (12) that are opposite and separate from each other;
- the second handle (2) comprises two second plates (21) that are opposite and separate from each other;
- a rear part of the connecting rod (3) is bent and extends towards one end of the first handle (1) away from the pawl (6);
- the first returning spring (5) is connected between a back side of a bent part of the clamp fixing plate (4) and the first handle (1);
- the pawl (6) is rotatable and installed at the first handle (1);
- the pawl (6) matches and meshes with outer pawl teeth at a root of the clamp fixing plate (4);
- a tail end of the pawl (6) is connected to the second returning spring (7);
- an end of the second returning spring (7) is connected to a rivet column (70) on the first handle (1);
- the mounting blocks (8) are rotatable and installed at two sides of the clamp head respectively;
- and inner sides of the mounting blocks (8) are respectively provided with the plier beaks (9) having an adjustable angle;
- wherein the crimping pliers further comprise connecting handles (10) and ball-head screws (11);
- wherein a back side of each of the plier beaks (9) is provided with a corresponding one of the connecting handles (10) having a cylindrical shape, and each of the connecting handles (10) defines a plurality of positioning grooves (101) along a circumference of the connecting handle (10);
- an inner side of each of the mounting blocks (8) defines a hole (80) matching with the corresponding connecting handle (10);
- a front end of each of the mounting blocks (8) is screwed with corresponding two of the ball-head screws (11);
- and a front end of each of the ball-head screws (11) is inserted into a corresponding one of the plurality of positioning grooves.
Dependencies are inferred from the claim text.