Manual locking device for blowout preventer

By designing a manual locking device for blowout preventer including pulley set, wire rope and bevel gear structure, the problems of high-level operation risks and inconvenience in the prior art are solved, low-position or ground operation of the locking rod is realized, safety and production efficiency are improved, and it is suitable for different types of blowout preventer combinations.

CN222686638UActive Publication Date: 2025-03-28CHINA NAT PETROLEUM CORP +1
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Patent Information

Application Number
CN202421387212.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-18
Publication Date
2025-03-28
Estimated Expiration
2034-06-18

AI Technical Summary

Technical Problem

The existing blowout preventer manual locking device has a risk of high-level operation when operating at high altitudes, which is inconvenient to operate and inefficient, making it difficult to adapt to the height differences of locking lever combinations of different models of blowout preventer.

Method used

A blowout preventer manual locking device including a box, pulley set, wire rope, slide rail, transmission mechanism and limit plate is designed. The height of the transmission mechanism on the slide rail is adjusted by the wire rope to achieve low position or ground operation of the locking rod, and a bevel gear structure and a telescopic output shaft are used to improve transmission stability and applicability.

Benefits of technology

It effectively reduces the risk of high-altitude operation, improves operation safety and production efficiency, and is suitable for different types of blowout preventers, meeting the needs of different heights of locking levers.

✦ Generated by Eureka AI based on patent content.
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Abstract

The utility model discloses a manual locking device for a blowout preventer, which belongs to the technical field of petroleum well control equipment, comprises a box body, a pulley block, a steel wire rope, a slide rail and a transmission mechanism connected onto the slide rail in a sliding manner, and is characterized by further comprising a limiting plate, a first winch and a second winch, the limiting plate and the sliding rail are fixed in the box body, the first winch is installed on one side of the box body, the second winch is installed on the other side of the box body, the steel wire rope is wound around the pulley block, the first winch and the second winch, and the transmission mechanism is arranged on the box body. The transmission mechanism comprises a hand wheel, an input transmission box, an output transmission box, a mounting seat, a telescopic output shaft and a vibration reduction coupler, one end of the telescopic output shaft is connected with the output gear box, and the other end of the telescopic output shaft is connected with the vibration reduction coupler. According to the utility model, the locking rod can be effectively led to a low position or the ground for operation, the risk of high-place operation is reduced, and the safety and the production efficiency are improved.
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