CN203081376U - Recovery hook with single hook - Google Patents

Abstract

The utility model relates to the field of underground bit hooks, in particular to a recovery hook with a single hook. The recovery hook with the single hook is characterized by comprising a hook rod and a hook body. A central line of the hook rod is located on the inner side of the hook body. The included angle of the hook body and the central line of the hook rod is 10 degrees to 20 degrees and the included angle of the hook body and a hook point is 35 degrees to 50 degrees. Compared with the prior art, the recovery hook with the single hook has the advantages of being simple in structure, low in cost, convenient to use and capable of effectively reducing working intensity, improving working efficiency and guaranteeing that after one-time underground salvage of the hook is successful, a caught fish is not unhooked no matter how many times of salvage is conducted.

Description

A kind of single hook crowfoot

Technical field

The utility model relates to fishing tool field, down-hole, relates in particular to a kind of single hook crowfoot.

Background technology

Single hook crowfoot is a kind of fishing tool of less expensive, is specifically designed to salvage certain fish and design, as salvaging bailer and perforating gun drop handle, all available these instruments such as weight-adding hammer drop handle greatly directly.Present crowfoot is because of complex structure, inconvenient operation, thus increased working strength.

Summary of the invention

The purpose of this utility model provides a kind of simple in structure, easy to use, single hook crowfoot that cost is low.

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

A kind of single hook crowfoot comprises shank and coupler body, and described shank center line is positioned at the inboard of coupler body, 10-20 ° of hook body and shank center line angle, 35-50 ° of hook body and bill angle.

Compared with prior art, the beneficial effects of the utility model are: simple in structure, cost is low, easy to use, effectively reduce labour intensity, improved operating efficiency, hook is repeatedly salvaged after no matter after success is once salvaged in the down-hole, can guarantee that all fish do not break off relations.

Description of drawings

Fig. 1 is the utility model example structure schematic diagram;

Fig. 2 is the lateral view of Fig. 1.

Wherein: 1-shank 2-coupler body

The specific embodiment

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

See Fig. 1, Fig. 2, it is a kind of single hook crowfoot example structure schematic diagram of the utility model, comprise shank 1 and coupler body 2, the center line of shank 1 is positioned at the inboard of coupler body 2, coupler body 2 comprises hook body and bill, hook body 1 is 10-20 ° (a α mark) with shank center line angle, 35-50 ° of hook body and bill angle (β mark).

During use with instrument down to top of fish, press (general 5kN) after being hampered a little, and carry once promptly 90 °～120 ° of well head rotation drilling tools, again row transfer-pressurize-on carry, so repeatedly repetition is carried brill and can be pulled junk out.

Claims (1)

1. a single hook crowfoot is characterized in that, comprise shank and coupler body, described shank center line is positioned at the inboard of coupler body, 10-20 ° of hook body and shank center line angle, 35-50 ° of hook body and bill angle.

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