CN212027697U

CN212027697U - Mechanical lock for hydraulic elevator

Info

Publication number: CN212027697U
Application number: CN201922467489.4U
Authority: CN
Inventors: 缪锋; 刘晓红; 吴钊; 葛华
Original assignee: JIANGSU SAIFU PETROLEUM MACHINERY CO LTD
Current assignee: JIANGSU SAIFU PETROLEUM MACHINERY CO LTD
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-11-27
Anticipated expiration: 2029-12-31

Abstract

The mechanical lock comprises a lock pin, a lock pin reset spring, a lock pin pressing block and a lining, wherein the lock pin is arranged in the lock pin reset spring, the lock pin and the lock pin reset spring are installed on the valve, the lock pin reset spring drives the lock pin to move up and down on the valve, the position where the lock pin is arranged just blocks the lock pin after the lock pin moves down, the lining is arranged on the inner side of the valve, the lock pin pressing block is arranged at the top of the lock pin, and the lock pin pressing block is fixedly connected with the lining. The utility model discloses an eliminate in the hydraulic elevator use, because the trouble of power, hydraulic pressure source, perhaps the potential safety hazard is opened to the mistake that operating personnel's maloperation brought, guaranteed the security of workover.

Description

Mechanical lock for hydraulic elevator

Technical Field

The utility model relates to an oil field borehole operation elevator technical field especially relates to a mechanical lock for hydraulic elevator for automatic well workover in-process prevents that the hydraulic elevator accident from opening and causing the incident.

Background

The turnover hydraulic elevator is an ideal tool for clamping a pipe column in the automatic operation of petroleum and natural gas well workover, greatly improves the well workover efficiency and reduces the labor intensity of operators.

However, in actual operation, the valve and the latch of the turnover hydraulic elevator are hydraulically driven, but when the elevator is suspending the tubular column, the latch and the valve of the elevator are suddenly and accidentally opened due to sudden accidental cutting of an oil line or misoperation of an operator or vibration of the hydraulic oil line, so that the tubular column falls into the well, and a huge accident is caused. For this reason, a new technical solution is needed to solve the above technical problems.

Disclosure of Invention

To the above situation, the utility model provides a mechanical lock is used to hydraulic elevator.

The utility model adopts the technical proposal that: the mechanical lock comprises a lock pin, a lock pin reset spring, a lock pin pressing block and a lining, wherein the lock pin is arranged in the lock pin reset spring, the lock pin and the lock pin reset spring are installed on the valve, the lock pin reset spring drives the lock pin to move up and down on the valve, the position where the lock pin is arranged just blocks the lock pin after the lock pin moves down, the lining is arranged on the inner side of the valve, the lock pin pressing block is arranged at the top of the lock pin, and the lock pin pressing block is fixedly connected with the lining.

Furthermore, the mechanical lock for the hydraulic elevator further comprises a lining return spring capable of driving the lining to move up and down, and the lining return spring is arranged on the valve.

Furthermore, the lock pin pressing block and the lining are of an integrated structure.

The technical advantages of the utility model reside in that, a simple structure, each part is arranged succinctly, and the rings mechanical lock of being convenient for maintain and use has eliminated in the hydraulic elevator use, because the trouble of power, hydraulic pressure source, or the potential safety hazard is opened to the mistake that operating personnel's maloperation brought, has guaranteed the security of workover.

Drawings

Fig. 1 is a sectional view taken along line a-a of fig. 3, showing the mechanical lock in a latched state.

Fig. 2 is a cross-sectional view taken along line a-a of fig. 3, illustrating the mechanical lock in an unlocked condition of the latch.

Fig. 3 is a schematic structural diagram of the present invention.

Fig. 4 is a partially enlarged view of fig. 1.

Fig. 5 is a partially enlarged view of fig. 2.

Wherein: 1. the elevator comprises a lock latch, 2, a lock pin, 3, a lock pin return spring, 4, a lining return spring, 5, a lock pin pressing block, 6, a lining, 7, a pipe column, 8, a valve, 9, an elevator main body, 10, a lock latch pin, 11 and a valve pin.

Detailed Description

As shown in fig. 1 and 2, the mechanical lock for the hydraulic elevator comprises an elevator main body 9, a valve 8 and a latch 1, wherein the valve 8 is connected with the elevator main body 9 through a valve pin 11, the latch 1 is connected with the elevator main body 9 through a latch pin 10, the mechanical lock for the hydraulic elevator comprises a lock pin 2, a lock pin return spring 3, a lock pin pressing block 5 and a lining 6, the lock pin 2 is arranged in the lock pin return spring 3, the lock pin 2 and the lock pin return spring 3 are installed on the valve 8, the lock pin return spring 3 drives the lock pin 2 to move up and down on the valve 8, the lock pin 2 is arranged at a position right blocking the lock pin 1 after the lock pin 2 moves down, the lining 6 is arranged on the inner side of the valve 8, the lock pin pressing block 5 is arranged at the top of the lock pin 2, and the lock pin pressing block 5 is fixedly connected with.

The mechanical lock for the hydraulic elevator further comprises a lining return spring 4 capable of driving a lining 6 to move up and down, wherein the lining return spring 4 is arranged on the valve 8; the lock pin pressing block 5 and the lining 6 are of an integral structure.

As shown in fig. 1 and 2, the working principle is as follows: when the elevator suspends the pipe column 7, the coupling of the pipe column 7 presses the upper plane of the lining 6, the lining 6 moves downwards, the lock pin pressing block 5 moves downwards along with the lining, the lock pin 2 moves downwards along with the lining, the lock latch 1 is blocked, and as long as the elevator suspends the pipe column 7, the lock pin 2 always blocks the lock latch 1 from being opened, so that the lock latch 1 is locked.

As shown in fig. 1 and fig. 2, the present invention has the following working procedures:

1) mechanical lock locking bolt 1

When the elevator suspends the pipe column 7, the coupling of the pipe column presses the upper plane of the lining 6, downward acting force is applied to the lining 6, the lining 6 descends, the lock pin pressing block 5 presses the upper end of the lock pin 2, downward acting force is applied to the lock pin 2, the lock pin 2 descends and locks the lock latch 1, as long as the elevator suspends the pipe column 7, the lock pin 2 can always lock the lock latch 1, the lock latch 1 cannot be opened, the valve 8 cannot be opened, and the effect that the pipe column 7 accidentally falls into a well due to sudden accidental oil circuit cutting or misoperation of an operator or vibration of a hydraulic oil circuit, wherein the lock latch 1 and the valve 8 are suddenly opened accidentally;

2) mechanical lock pin 2 reset

When the elevator unloads the load, namely unloads the downward acting force applied to the lining 6 by the pipe column 7, the lining 6 moves upwards under the action of the lining return spring 4, meanwhile, the lock pin pressing block 5 on the lining 6 also moves upwards, the acting force to the lock pin 2 is unloaded, the lock pin 2 moves upwards under the action of the lock pin return spring 3, the efficiency of locking the lock bolt 1 can be lost, and then the valve 8 and the lock bolt 1 can be opened or closed.

Claims

1. The utility model provides a mechanical lock is used to hydraulic elevator, the elevator includes elevator main part (9), valve (8) and hasp (1), valve (8) are connected with elevator main part (9) through valve round pin (11), hasp (1) are connected its characterized in that through hasp round pin (10) and elevator main part (9): the mechanical lock comprises a lock pin (2), a lock pin reset spring (3), a lock pin pressing block (5) and a lining (6), wherein the lock pin (2) is arranged in the lock pin reset spring (3), the lock pin (2) and the lock pin reset spring (3) are installed on a valve (8), the lock pin reset spring (3) drives the lock pin (2) to move up and down on the valve (8), the position where the lock pin (2) is arranged just blocks the lock latch (1) after the lock pin (2) moves down, the lining (6) is arranged on the inner side of the valve (8), the lock pin pressing block (5) is arranged at the top of the lock pin (2), and the lock pin pressing block (5) is fixedly connected with the lining (6).

2. The mechanical lock for hydraulic elevator as claimed in claim 1, wherein: the lining reset spring (4) capable of driving the lining (6) to move up and down is further included, and the lining reset spring (4) is arranged on the valve (8).

3. The mechanical lock for hydraulic elevator as claimed in claim 1, wherein: the lock pin pressing block (5) and the lining (6) are of an integrated structure.