CN2110706U

CN2110706U - Semi-automatic locking pin type hook

Info

Publication number: CN2110706U
Application number: CN 91221775
Authority: CN
Inventors: 刘景三
Original assignee: XIANHE OIL EXTRACTION FACTORY SHENGLI PETROLEUM ADMINISTRATION BUREAU
Current assignee: XIANHE OIL EXTRACTION FACTORY SHENGLI PETROLEUM ADMINISTRATION BUREAU
Priority date: 1991-09-26
Filing date: 1991-09-26
Publication date: 1992-07-22

Abstract

The utility model discloses a semi-automatic locking pin type hook. The hook body can rotate and reverse freely, and the mouth of the hook is provided with a closed safety block pin which can rebound automatically. The utility model has the advantages of flexible operation and simple operation, the safe and reliable rate can reach 100%, workers' labor intensity can be reduced, and the operating speed can be accelerated.

Description

Semi-automatic locking pin type hook

The utility model relates to a kind of petroleum well workover machinery, particularly a kind of semi-automatic lockpin-type suspension hook.

In workover treatment, generally the suspension hook of Shi Yonging is that the single hook of die forging manufactures and designs.Because of nothing prevents the mechanism that suspended object is deviate from, and the accident that suspended object is deviate to hurt sb.'s feelings taking place often, is absolutely unsafe.In addition, the coupler body heaviness can not be rotated freely, and working strength of workers is big, and operating speed is slow.

Task of the present utility model provides a kind of improved suspension hook, and it can prevent definitely that hanging object from breaking off relations, and coupler body rotates freely, and is simple to operate, alleviates working strength of workers, improves operating speed.

Concrete technical solution of the present utility model is: coupler body adopts elongated, and the drop handle assembly changes the rotation commutation type into.Mill a groove at hook neck place, the spring of packing into, groove end opening place adds a cover plate, uses bolton.Use a connecting lever, an end is as handle, and the other end is inserted in the spring groove, heads on spring above, is connected with the backing pin extension bar at mouth of hook place below, bores a hole at the flex point place, and the centre penetrates the connecting lever axle, and frame is on the hook neck, as the fulcrum of connecting lever.Pull arm, the backing pin at mouth of hook place promptly by on lift and paste the hook edge, suspended object can take off.Release handle, backing pin are that automatic resilience resets, the envelope position mouth of hook.Mouth of hook place backing pin adopts the unidirectional-folding formula, hung object bump can hang automatically behind the pin into, backing pin is closed the mouth of hook again automatically under the torsion spring effect, needn't pull handle during hook.

The utility model is compared than existing suspension hook, and safe and reliable rate reaches 100%, and flexible operation is hung and got conveniently, makes simple.Alleviate working strength of workers, improved operating speed.

Below in conjunction with accompanying drawing the utility model is done further detailed description, drawing is described as follows:

Accompanying drawing is a half section structure chart of the present utility model.

Number in the figure is:

1-drop handle assembly; The 2-spring; The 3-coupler body; The 4-handle; The 5-backing pin; 6-connecting lever axle; The 7-torsion spring.

A most preferred embodiment of the present utility model is: rotatable commutation type drop handle assembly (1), be assembled together with pressure-bearing steel bowl and coupler body, and coupler body is a forging molding, a groove is milled at the hook neck place above the mouth of hook, puts into spring (2).Hook neck side is milled a sector and is communicated with spring groove over there again, and crank arm mechanism is put into, and together with the hook neck one together heart hole that pulls out of hole, penetrates connecting lever axle (6) at the flex point place.One end of connecting lever is inserted in the spring groove, heads on spring above, is connected with backing pin (5) below by the backing pin extension bar, and the other end of connecting lever is exposed at hook neck outside, uses as handle (4).Backing pin (5) is contained in mouth of hook place, and it adopts the unidirectional-folding formula, is normally off under torsion spring (7) effect.When pressing down handle (4), because top spring (2) on the other end of connecting lever is connected in to lift on the backing pin extension bar drive backing pin (5) on the connecting lever and pastes the hook edge, abdicate the mouth of hook, hanging object can take out from suspension hook.Promptly under the elastic reaction of spring (2), rebounding automatically resets, and seals the mouth of hook for release handle (4), backing pin (5).When extension the article lifting, only need to bump toward hook interior, backing pin (5) can get out of the way corresponding gap according to the size of suspended object, and hanging object is slipped in the hook, seals the mouth of hook subsequently automatically and prevents that suspended object from dropping out, and definitely guarantees operating personnel's safety.

Claims

1, the suspension hook a kind of by the drop handle assembly, that coupler body and backing pin are formed is characterized in that drop handle assembly (1) can 360 ° rotates freely commutation, is provided with the backing pin (5) that automatic resilience is closed at mouth of hook place.

2, suspension hook according to claim 1 is characterized in that the hook neck adopts rectangular configuration, and hook neck place is milled with spring groove, and spring (2) is housed in the groove.

3, suspension hook according to claim 1 is characterized in that handle (4) is a connecting lever device, and its other end heads on spring (2) above being loaded in the spring groove, is connected with the backing pin extension bar below, in the boring of flex point place, penetrates connecting lever axle (6).

4, suspension hook according to claim 1 is characterized in that backing pin (5) is a wedge pin, but unidirectional-folding under the effect of torsion spring (7), is opened corresponding space according to size direction in hook of hanging article, closes automatically immediately.

5, suspension hook according to claim 1, its feature has a wedge-shaped slot (8) at place, mouth of hook upper edge.