FIELD: gas-and-oil producing industry.
SUBSTANCE: pipe elevator consists of case, of flap pivotally connected to case with axle and of locking device. Also the locking device includes a gripping unit made in form of a frame with vertical poles and of rotating mechanism positioned on the flap of the elevator. The rotating mechanism contains a spring-loaded shaft with a handle and of a carrier with rollers installed in a cartridge and interconnected by means of a pin: the rollers turn relative to each other.
EFFECT: increased safety, reliability and service life of elevator.
4 dwg
Title | Year | Author | Number |
---|---|---|---|
ELEVATOR | 2010 |
|
RU2482258C2 |
CASE ELEVATOR | 2008 |
|
RU2414581C2 |
ELEVATOR | 2009 |
|
RU2414583C1 |
PIPE ELEVATOR | 2001 |
|
RU2194840C2 |
UNIVERSAL DUAL-LINK PIPE ELEVATOR | 2023 |
|
RU2816608C1 |
ELEVATOR FOR TWO PIPE STRINGS TRIP | 2012 |
|
RU2507369C1 |
ELEVATOR FOR LOWERING AND LIFTING DRILLING PIPES | 2002 |
|
RU2235846C2 |
UNIVERSAL ELEVATOR | 2009 |
|
RU2507368C2 |
PIPE ELEVATOR | 0 |
|
SU1286729A1 |
ELEVATOR | 0 |
|
SU723095A1 |
Authors
Dates
2011-03-20—Published
2008-06-27—Filed