CN2359059Y

CN2359059Y - Convenient oil-pipe spanner capable of automatic locking

Info

Publication number: CN2359059Y
Application number: CN 98245092
Authority: CN
Inventors: 翟北春
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-10-21
Filing date: 1998-10-21
Publication date: 2000-01-19
Anticipated expiration: 2008-10-21

Abstract

The utility model relates to a pair of oil-pipe pliers, which is composed of a handle 13, an arc-shaped pliers opening 2 and a double-rocking rod locking device, wherein, the arc-shaped pliers opening and the handle are connected by a lock shaft 11. A torsion spring 12 is arranged between the arc-shaped pliers opening and the handle for maintaining the smallest aperture of the pliers opening. The inner side of the left end of an arc-shaped pliers body is provided with one or a plurality of fixing or removable gear teeth 1. During operation, the handle is held and the arc-shaped pliers opening is aligned to an oil pipe, strikes the oil pipe and enters the arc-shaped pliers opening. If the handle is rotated clockwise, the oil pipe can be wrenched. The double-rocking rod locking device, the handle and the arc-shaped pliers opening are connected together by three lock shafts. After a trimming nut 8 is properly regulated, the grasping handle and a handle 9 can be self locked. The pair of oil-pipe pliers has the advantages of light weight and convenient operation.

Description

But self-locking makes things convenient for tubing tongs

This is novel to be a kind of tubing tongs easy to use, particularly a kind of easy to operate, and the tubing tongs of energy self-locking.

Obtain the application of wide model at petroleum industry tubing tongs (or claim freely clamp), but very heavy, inconvenient operation, can not self-locking etc. our disease, so the existing tubing tongs utmost point is waited to improve.

This novel purpose provides a kind of light tubing tongs of being convenient to operate the energy self-locking.

This is novel to be that following mode is finished:

This tubing tongs is made up of handle 13 arc vice jaws 2 double rocking lever locking device three parts.Arc vice jaw and handle by lock shaft 11 be connected have between arc vice jaw and handle a torque spring 12 can keep jaw be lowest calibre be shaped in the inboard of the left end of arc caliper one or several fixing or hold handle during removable teeth 1 operation, oil pipe just enters in the arc vice jaw to allow arc vice jaw aligning oil pipe clash into, and the dextrorotation fixed handle has just been pulled oil pipe.By three lock shafts two lever apparatus that shake, handle, arc vice jaw links together, but suitably reconciles hold with a firm grip behind the fine-tuning nut 8 handle and also self-locking of handle 9, this tubing tongs is in light weight easy to operate.

This is novel following positive effect:

1, light weight approximately is 1/3rd of traditional oils pipe wrench.

2, easy and simple to handle.

But 3 self-lockings

Below in conjunction with accompanying drawing to this novel being described in further detail:

Accompanying drawing is novel principle front view.

This oil pipe pincers are by arc vice jaw 2, handle 13, and double rocking lever tightly installs three parts and forms.Connect arc vice jaw 2 and handle 13 by lock shaft 11.Can keep jaw to be of a size of minimum because of torque spring 12 being housed at jaw 2 and 13 on handle.Connect connecting rod 4 and jaw 2 by lock shaft 3.Connecting rod 4 is an one with self-locking handle 9, by lock shaft 5, connects connecting rod 4 and connecting rod 6, and the other end of connecting rod 6 connects fine setting screw rod 10 by lock shaft 7, and the other end of screw rod 10 inserts in the slotted hole of handle 13 upper ends.The fine setting screw rod can be gone into move left and right at slotted hole.Be provided with fine-tuning nut 8 on fine setting screw rod 10, the left inboard of arc caliper 2 is shaped on one or several fixing or removable teeth 1.Hold handle during operation and clash into, but oil pipe 14 just can advance just turn oil pipe 14 of the interior dextrorotation fixed handle 13 of jaw to allow arc vice jaw 2 aim at oil pipe.Suitably reconcile fine-tuning nut 8 and can determine whether self-locking reaches the size of coupling mechanism force, as long as just but if need self-locking hold with a firm grip handle 13 and self-locking handle 9 self-lockings.

Claims

But 1 self-locking makes things convenient for tubing tongs by handle 13, and arc vice jaw 2 and double rocking lever locking device three parts are formed, and it is characterized in that:

A lock shaft 11 connects handle 13, arc vice jaw 2;

B, torque spring 12 is housed at handle 13 and 2 of arc vice jaws;

The left inboard of C, arc vice jaw 2 is shaped on teeth 1;

D, lock shaft 3 connect arc vice jaw 2 and connecting rod 4, and connecting rod 4 is an one with set lever 9

E, lock shaft 5 connect connecting rod 4 and connecting rod 6, and the other end of connecting rod 6 connects fine setting screw rod 10 by 7, is shaped on fine-tuning nut 8 on the fine setting screw rod 10.