CN203081388U

CN203081388U - Fixed-hook-type external fishing hook

Info

Publication number: CN203081388U
Application number: CN 201220708921
Authority: CN
Inventors: 胡莹莹; 刘春友; 肖德石
Original assignee: Liaoning Petroleum Machinery Manufacturing Co Ltd
Current assignee: Liaoning Petroleum Machinery Manufacturing Co Ltd
Priority date: 2012-12-20
Filing date: 2012-12-20
Publication date: 2013-07-24
Anticipated expiration: 2022-12-20

Abstract

The utility model relates to the field of underground fishing tools, in particular to a fixed-hook-type external fishing hook. The fixed-hook-type external fishing hook is characterized by comprising a connector, a hook body and hook points, wherein one end of the connector is provided with threads matched with a drill column, the other end of the connector is connected with the hook body in a threaded mode, the hook body is snake-shaped, the hooks are arranged on the hook body and the hook body and the hook points are of an integral structure. The included angle alpha between the axis of each hook point and the axis of the hook body is 24-35 degrees. The number of the hook points is 2-6, and the hook points are arranged along the hook body in a spiral mode. Compared with the prior art, the fixed-hook-type external fishing hook has the advantages that the hook is used for fishing falling objects like ropes, lifting rings, hollow short cylinders and short ropes from a casing pipe or an oil pipe, and the fixed-hook-type external fishing hook is simple in structure, convenient to operate, high in hook body strength, and capable of effectively reducing labor intensity and improving working efficiency.

Description

The outer crowfoot of a kind of dead hook

Technical field

The utility model relates to fishing tool field, down-hole, the outer crowfoot of particularly a kind of dead hook.

Background technology

The outer crowfoot of dead hook is a kind of fishing tool of less expensive, is specifically designed to the instrument of salvaging junks such as various rope classes, drop handle, hollow short cylinder, short rope sling in sleeve pipe or the oil pipe.Present fishing tool has multiple, the ubiquity complex structure, and the shortcoming of inconvenient operation, thus brought inconvenience to salvage, influenced the operating efficiency of fishing.

Summary of the invention

The purpose of this utility model provides the outer crowfoot of a kind of dead hook, is used for salvaging junks such as various rope classes, drop handle, hollow short cylinder, short rope sling in sleeve pipe or oil pipe, and easy to operate, cost is low.

For solving the problems of the technologies described above, the technical solution of the utility model is:

The outer crowfoot of a kind of dead hook comprises joint, hook body and bill, and joint one end is provided with the screw thread with the drilling rod coupling, and the joint other end is threaded with the hook body, and described hook is as snakelike, and hook is provided with a plurality of bills on one's body, and hook body and bill are integral structure.

Described bill axis and hook body axis angle α are 24-35 °.

The quantity of described bill is 2-6, along hook body helical arrangement.

Compared with prior art, the beneficial effects of the utility model are: be used for salvaging in sleeve pipe or oil pipe junks such as various rope classes, drop handle, hollow short cylinder, short rope sling, simple in structure, easy to operate, coupler body intensity is big, can effectively reduce labour intensity, increase work efficiency.

Description of drawings

Fig. 1 is the structural representation of the utility model embodiment.

Among the figure: 1-joint 2-hook body 3-bill

The specific embodiment

Below in conjunction with accompanying drawing the specific embodiment of the present utility model is described further:

See Fig. 1, it is the structural representation of the outer crowfoot embodiment of a kind of dead hook of the utility model, comprise joint 1, hook body 2 and bill 3, joint 1 one ends are provided with the screw thread with the drilling rod coupling, joint 1 other end is threaded with hook body 2, hook body 2 is snakelike, and hook body 2 is provided with a plurality of bills 3, and hook body 2 is an integral structure with bill 3.The quantity of bill 3 is 2-6, along hook body 2 helical arrangement.

In order to guarantee the salvaging effect of bill, bill 3 axis and hook body 2 axis angle α are 24-35 °.

Characteristics of the present utility model are that hook is fixed, and bill makes progress, no telescopic movable leeway, but intensity is bigger, during salvaging, among the bill and hook body insertion rope class junk of taking advantage of a situation, rotate a little, rope class junk promptly is wrapped on one's body the hook, and bill stops junk to glide, thereby drags for flexible junk.

Claims

1. the outer crowfoot of dead hook is characterized in that, comprises joint, hook body and bill, joint one end is provided with the screw thread with the drilling rod coupling, and the joint other end is threaded with the hook body, and described hook is as snakelike, hook is provided with a plurality of bills on one's body, and hook body and bill are integral structure.

2. the outer crowfoot of a kind of dead hook according to claim 1 is characterized in that described bill axis and hook body axis angle α are 24-35 °.

3. the outer crowfoot of a kind of dead hook according to claim 1 and 2 is characterized in that the quantity of described bill is 2-6, along hook body helical arrangement.