CN211008505U

CN211008505U - Casing safety elevator for oil field drilling operation

Info

Publication number: CN211008505U
Application number: CN201921936549.6U
Authority: CN
Inventors: 蔡鹏�; 刘永科; 吕劲; 姜海瑞; 郭燕群; 苟治铭
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-11-11
Filing date: 2019-11-11
Publication date: 2020-07-14
Anticipated expiration: 2029-11-11

Abstract

The utility model belongs to oil field drilling tool field especially relates to a sleeve pipe safety elevator for oil field drilling operation. The elevator comprises an elevator main body and a movable door, wherein hanging lugs are arranged at two ends of the elevator main body, a lifting hook stop pin is inserted into the hanging lugs, a steel wire ring is arranged on the lifting hook stop pin and sleeved on the hanging lugs, the upper end of the steel wire ring is hinged on the lifting hook stop pin, and a clamping part which can be clamped outside the lifting hook stop pin is arranged at the lower end of the steel wire ring; the locking mechanism comprises a lock pin and a lock hole, the lock pin is integrally of a round rod-shaped structure and is inserted into the elevator main body, a handle used for driving the lock pin to rotate is fixed at the upper end of the lock pin, the lock hole is formed in the movable door, an opening for the lock pin to enter is formed in the side face of the lock hole, the width of the opening is smaller than the diameter of the lock pin, and a flat surface is machined in a section, corresponding to the opening, of the lock pin, so that the lock pin can enter the lock hole through the opening. The utility model discloses the potential safety hazard when can thoroughly eliminate the sleeve pipe elevator and use.

Description

Casing safety elevator for oil field drilling operation

Technical Field

The utility model belongs to oil field drilling tool field especially relates to a sleeve pipe safety elevator for oil field drilling operation.

Background

The casing elevator is a necessary casing hoisting auxiliary tool in the oil field well drilling and completion operation, when in use, the casing elevator is sleeved on the casing, the lower end surface of the casing coupling at the upper end of the casing is propped against the upper side of the casing elevator, so that the casing can be clamped, and at the moment, the casing elevator is hoisted by using a crane, so that the casing can be hoisted. The safety problem is the problem that needs the most concern in the casing elevator use, and at present, there are two big potential safety hazards in the casing elevator use: firstly, the connection between the lifting hook and the casing elevator has the hidden danger of loosening, and the hidden danger is directly caused by the falling of the stop pin of the lifting hook; secondly, the connection between the sleeve elevator and the sleeve has the hidden trouble of loosening, and the cover is not locked firmly due to the direct reason of the existence of the cover, and is opened accidentally. Therefore, there is a need for a new type of bushing to eliminate the above mentioned safety hazards.

Disclosure of Invention

The utility model provides a sleeve pipe safety elevator for oil field drilling operation to solve the problem that proposes in the above-mentioned background art.

The utility model provides a technical problem adopt following technical scheme to realize: the utility model provides a sleeve pipe safety elevator for oil field drilling operation, including elevator main part and dodge gate, the one end of dodge gate articulates in the elevator main part, and the other end passes through locking mechanism to lock in the elevator main part, and the both ends of elevator main part are provided with the hangers, have inserted the lifting hook backing pin on the hangers, be provided with the steel wire ring on the lifting hook backing pin, the steel wire ring cover is in on the hangers, the upper end of steel wire ring articulates on the lifting hook backing pin, the lower extreme of steel wire ring is provided with the clamping part that can press from both sides in the lifting hook backing pin outside;

the locking mechanism comprises a lock pin and a lock hole, the lock pin is integrally of a round rod-shaped structure, the lock pin is inserted into the elevator main body, a handle used for driving the lock pin to rotate is fixed at the upper end of the lock pin, the lock hole is formed in the movable door, a notch for the lock pin to enter is formed in the side face of the lock hole, the width of the notch is smaller than the diameter of the lock pin, and a flat face is machined in a section, corresponding to the notch, of the lock pin, so that the lock pin can enter the lock hole through the notch.

The steel wire ring is made of spring steel. The whole steel wire ring is formed by bending a steel wire. And a door handle is arranged on the movable door.

The utility model has the advantages that: the utility model discloses a set up the steel wire ring on the lifting hook backing pin, can prevent effectively that the lifting hook backing pin from droing to prevent that sleeve pipe elevator and lifting hook from breaking away from. And simultaneously, the utility model discloses a locking mechanism to the dodge gate improves, can effectively stop the dodge gate accident and open. Therefore, the utility model discloses the potential safety hazard when can thoroughly eliminate the sleeve pipe elevator and use.

Drawings

Fig. 1 is a schematic front view of the present invention;

FIG. 2 is a top view of FIG. 1;

FIG. 3 is a view showing the positional relationship between the lock pin and the lock hole when the movable door is locked;

FIG. 4 is a view showing the positional relationship between the lock pin and the lock hole when the movable door is opened;

fig. 5 is a schematic view of the structure of the clamping part on the steel wire ring and the hook stop pin.

In the figure: 1-lifting hook stop pin, 2-steel wire ring, 3-elevator main body, 4-handle, 5-door handle, 6-movable door, 7-lock pin, 8-notch, 9-lock hole, 10-clamping part and 11-hanging lug.

Detailed Description

The invention is further described below with reference to the accompanying drawings:

as shown in fig. 1, the present embodiment includes an elevator main body 3 and a movable door 6, one end of the movable door 6 is hinged on the elevator main body 3, the other end is locked on the elevator main body 3 through a locking mechanism, two ends of the elevator main body 3 are provided with hanging lugs 11, and a hanging hook stop pin 1 is inserted on the hanging lugs 11. The above is a general structure in the prior art, and is not described herein again.

The utility model discloses an innovation point lies in:

firstly, the lifting hook stop pin 1 is provided with the steel wire ring 2, the upper end of the steel wire ring 2 is hinged to the lifting hook stop pin 1, and after the lifting hook stop pin 1 is installed in place, the steel wire ring 2 can be rotated to be sleeved on the hanging lug 11, so that the lifting hook stop pin 1 is effectively prevented from being separated. The lower end of the steel wire ring 2 is provided with a clamping part 10, and the clamping part 10 is clamped outside the hook stop pin 1, so that the steel wire ring 2 is fixed and the steel wire ring 2 is prevented from being rotated uncontrollably.

Secondly, the locking mechanism comprises a lock pin 7 and a lock hole 9, the lock pin 7 is integrally of a round rod-shaped structure, the lock pin 7 is inserted into the elevator main body 3, a handle 4 for driving the lock pin 7 to rotate is fixed at the upper end of the lock pin 7, the lock hole 9 is arranged on the movable door 6, a notch 8 for the lock pin 7 to enter is formed in the side face of the lock hole 9, the width of the notch 8 is smaller than the diameter of the lock pin 7, and a section of the lock pin 7 corresponding to the notch 8 is processed with a flat surface so that the lock pin 7 enters the lock hole 9 through the notch 8. Based on the above structure, the latch 7 can be in the position state shown in fig. 3 or fig. 4 by pulling the handle 4, the movable door 6 is locked in the position state shown in fig. 3, and the movable door 6 is opened in the position state shown in fig. 4.

The wire ring 2 is made of spring steel, so that the clamping part 10 has enough elasticity, thereby ensuring the clamping reliability. The steel wire ring 2 is integrally formed by bending steel wires, and has simple manufacturing process and low cost. The movable door 6 is provided with a door handle 5, so that the movable door 6 can be opened and closed conveniently.

Claims

1. The utility model provides a sleeve pipe safety elevator for oil field drilling operation, includes elevator main part (3) and dodge gate (6), the one end of dodge gate (6) articulates on elevator main part (3), and the other end passes through locking mechanism to lock on elevator main part (3), and the both ends of elevator main part (3) are provided with hangers (11), have inserted lifting hook backing pin (1), its characterized in that on hangers (11): the lifting hook stop pin (1) is provided with a steel wire ring (2), the steel wire ring (2) is sleeved on the hanging lug (11), the upper end of the steel wire ring (2) is hinged on the lifting hook stop pin (1), and the lower end of the steel wire ring (2) is provided with a clamping part (10) which can be clamped on the outer side of the lifting hook stop pin (1);

the locking mechanism comprises a lock pin (7) and a lock hole (9), the lock pin (7) is integrally of a round rod-shaped structure, the lock pin (7) is inserted into the elevator main body (3), a handle (4) used for driving the lock pin (7) to rotate is fixed at the upper end of the lock pin (7), the lock hole (9) is arranged on the movable door (6), a notch (8) for the lock pin (7) to enter is formed in the side face of the lock hole (9), the width of the notch (8) is smaller than the diameter of the lock pin (7), and a flat face is machined in a section corresponding to the notch (8) on the lock pin (7) so that the lock pin (7) enters the lock hole (9) through the notch (8).

2. The casing safety elevator for oilfield drilling operations of claim 1, wherein: the steel wire ring (2) is made of spring steel.

3. The casing safety elevator for oilfield drilling operations of claim 1, wherein: the whole steel wire ring (2) is formed by bending steel wires.

4. The casing safety elevator for oilfield drilling operations of claim 1, wherein: the movable door (6) is provided with a door handle (5).