CN101054890A - Well mouth safe ladder - Google Patents
Well mouth safe ladder Download PDFInfo
- Publication number
- CN101054890A CN101054890A CN 200710015803 CN200710015803A CN101054890A CN 101054890 A CN101054890 A CN 101054890A CN 200710015803 CN200710015803 CN 200710015803 CN 200710015803 A CN200710015803 A CN 200710015803A CN 101054890 A CN101054890 A CN 101054890A
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- ladder
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- extension
- rope
- operating platform
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Abstract
The invention relates to a combined-type ladder, in particular relates to a well head safe working ladder for carrying out low pressure well testing work or installation and maintenance in the petroleum exploitation well head which is applied to petroleum exploitation field. The technical plans are that: the invention is composed of a main ladder, an auxiliary ladder, a flexible ladder and an operating platform; the main ladder and the auxiliary ladder composes a ladder like Chinese word 'ren', the main ladder and the flexible ladder composes an elevating ladder, the flexible ladder is concealed within the main ladder, a pulley and a rope are provided in the flexible ladder, the rope is connected to the hook; the operating platform can be adopted by folded mode and connected movably in the joint of the main ladder and the auxiliary ladder. The beneficial effects are that: the vertical ladder, the ladder like Chinese word 'ren' and the lifting ladder are combined together and can be used singlely and matchablely; the ladder can be used as well head special-purpose ladder and also can be used as common ladder; the ladder can climb and suspend with small volume and convenient carry after recovery; the operator can greatly reduce labor intensity, improve work efficiency and eliminate safety hidden trouble when loading and unloading accessories.
Description
One, technical field:
The present invention relates to a kind of combined ladder, particularly a kind of field of petroleum exploitation that is applicable to, the well mouth safe ladder that installation and maintenance of carrying out at production wellhead or low pressure well testing work are used.
Two, background technology:
In the line service of production wellhead, as change polished rod sealer, transfer dead space, before and after low pressure oil well well testing and the oil well operation etc., even if when dropping to bottom dead centre (lowest part) owing to polished rod, generally also between 2.5～3.0 meters, the staff is very difficult in terrestrial operation apart from ground level at its top.Generally be to sting pipe wrench on the appropriate location of polished rod on the scene, a people firmly holds up surely, and a people stands on the pipe wrench and operates, and a people cooperates at well head, very hard and polished rod subject to damage, and upper and lower operating personnel are also dangerous; Meet the restriction that is subjected to operating personnel's height and muscle power when changing polished rod sealer etc. than reprovision spare; the bad operation on ground; can only a people climbing up horse head up lifts with rope; this moment, horse head was in the commanding elevation; the protective effect of safety belt significantly reduces; the personnel that cooperate at well head also can be exposed under the weight simultaneously, and potential safety hazard is very big, the incident of hurting sb.'s feelings easily.
Three, summary of the invention:
Purpose of the present invention is exactly the above-mentioned defective that exists at prior art, and a kind of simple wellhead operating platform is provided, and afterwards volume is little, easy to carry to have recovery; Open the back easy, safe and reliable well mouth safe ladder is installed.
Its technical scheme is: mainly be made up of main ladder, secondary ladder, extension ladder and operating platform four parts; Main ladder and secondary ladder constitute " people " word ladder, and main ladder and extension ladder constitute lift, and extension ladder is hidden within the main ladder, and pulley and rope are housed in the extension ladder, the rope connecting shackle; Operating platform adopts collapsible mode, and is actively connected on the junction of main ladder and secondary ladder.
Structure in the described extension ladder is as follows: top sheave is fixed on the extension ladder top, and it is parallel with axis that fixed block is fixed on main terraced top, and lower sheave is fixed on the extension ladder bottom, and the rope that is connected with suspension hook arrives fixed block through top sheave, lower sheave (6).
The width of described operating platform is less than the inner width of extension ladder, its height is less than the distance between extension ladder two step stools, make extension ladder when stretching out the appropriate location, operating platform can be that axis rotates a certain angle to finish and launches or recovery operation with the axis, and stops that extension ladder is to lower slider.
Special U-shaped lever has been installed on the described secondary ladder, can have been cooperated fixedly position, the ladder left and right sides with the well head oil pipe and the suspension hook vertical line is overlapped with polished rod, described U-shaped lever is provided with safety rope.
The invention has the beneficial effects as follows: three ladder unifications, vertical ladder, " people " word ladder, lift be organic to close combination, can use separately, also can be used; One special many usefulness promptly are the well head special-purpose ladders, also can be used as conventional elevator; Can climb thing also capable of hoisting; It is little, easy to carry to have the back of recovery volume; It is easy, safe and reliable to open the back installation; During operations such as loading and unloading wellhead hardware, greatly reduce staff's labour intensity, improved operating efficiency, eliminated potential safety hazard.
Four, description of drawings:
Accompanying drawing 1 is a structural representation of the present invention.
In accompanying drawing 1: top sheave 1; Extension ladder 2; Step stool 3; Operating platform 4; Fixed block 5; Lower sheave 6; Rope 7; Sliding tray 8; Main ladder 9; Drop hanger 10; Axis 11; Spacing fixed mount 12; Polished rod 13; Oil pipe 14; " U " shape lever 15; Safety rope 16; Upper flange 17; Four-way junction of casing 18; Sleeve valve 19; Secondary ladder 20.
Five, the specific embodiment:
In conjunction with the accompanying drawings, the invention will be further described:
Its technical scheme mainly is made up of main ladder 9, secondary ladder 20, extension ladder 2 and operating platform 4 four parts; Main ladder 9 and secondary ladder 20 constitute " people " word ladder, main ladder 9 and extension ladder 2 constitute lift, two kinds of trapezoidal organic assembling are integral, the width of the maximum folding angle of " people " word ladder and the highest adjustable height of extension ladder and ladder is all set according to well head size and condition of work, the height setting of working platform is guaranteed personal security on the working stand under the high-altitude safe below the 2m requires.The staff has eliminated potential safety hazard at the home away from well head during the lift heavy operation;
Operating platform 4 adopts collapsible mode, dwindles the support that also can be used as extension ladder when taking volume, and is actively connected on the junction of main ladder 9 and secondary ladder 20.The width of described operating platform 4 is less than the inner width of extension ladder 2, its height is less than the distance between 2 liang of step stools 3 of extension ladder, make extension ladder 2 when stretching out the appropriate location, operating platform can be that axis rotates a certain angle to finish and launches or recovery operation with axis 11, and stops that extension ladder 2 is to lower slider.The width of secondary ladder 20 just in time is stuck in the both sides of big flange and the front of left and right sides sleeve gate, firm ladder front and back position, special U-shaped lever has been installed in appropriate location at secondary ladder, cooperate fixedly position, the ladder left and right sides with the well head oil pipe and make the vertical polished rod of suspension hook, so that lift heavy operation, U-shaped lever are provided with safety rope to increase safety factor.Whole ladder is folding reclaim the back less common " 1 " the word vertical ladder of volume, transportation is easy to carry.
Example when working with well head below describes structure of the present invention and operating process in detail.As shown in the figure: open auxiliary ladder 20 is to maximum, and its angle is limited by spacing fixed mount 12, lifts secondary ladder 20, and oblique cutting is gone into sleeve valve 19 fronts on the well head four-way junction of casing 18; Press secondary ladder 20 and make " U " shape lever 15 block oil pipe 14 and seat on upper flange 17, firm secondary ladder 20, the main ladder 9 of levelling is fastened safety rope 16, finishes fixing operation; Rope 7 on the pulling fixed block 5, extension ladder 2 protrudes upward from the sliding tray of leading in the ladder 98 under the drive of its lower sheave 6, when lower sheave 6 upwards is close to fixed block 5, with axis 11 is that axis is rotated counterclockwise operating platform 4, putting down 2 declines of 7 extension ladders of rope is pressed on the operating platform 4 its step stool 3, this moment, the vertical line of drop hanger 10 overlapped substantially with polished rod 13, finished fitting operation; During the dismounting weight, unclamp rope 7 drop hanger 10 of leaving behind and hang up weight, people's tow one people stands on the operating platform 4 and cooperates, and can finish dismounting and hang and unload operation; The recyclable working stand of reverse operating, identical with corresponding common trapezoidal operation when doing vertical ladder, " people " word ladder and lift use, no longer describe in detail.
Claims (4)
1, a kind of well mouth safe ladder is characterized in that: mainly be made up of main ladder (9), secondary ladder (20), extension ladder (2) and operating platform (4) four parts; Main ladder (9) and secondary ladder (20) constitute " people " word ladder, and main ladder (9) and extension ladder (2) constitute lift, and extension ladder (2) is hidden within the main ladder, and pulley and rope are housed in the extension ladder, rope connecting shackle (10); Operating platform (4) adopts collapsible mode, and is actively connected on the junction of main ladder (9) and secondary ladder (20).
2, well mouth safe ladder according to claim 1, it is characterized in that: the structure in the described extension ladder (2) is as follows: top sheave (1) is fixed on extension ladder (2) top, it is parallel with axis (11) that fixed block (5) is fixed on main ladder (9) top, lower sheave (6) is fixed on extension ladder (2) bottom, and the rope (7) that is connected with suspension hook (10) arrives fixed block (5) through top sheave (1), lower sheave (6).
3, well mouth safe ladder according to claim 1, it is characterized in that: the width of described operating platform (4) is less than the inner width of extension ladder (2), its height is less than the distance between extension ladder (2) two step stools (3), make extension ladder (2) when stretching out the appropriate location, operating platform can be that axis rotates a certain angle to finish and launches or recovery operation with axis (11), and stops that extension ladder (2) is to lower slider.
4, well mouth safe ladder according to claim 1, it is characterized in that: on the described secondary ladder (20) special U-shaped lever (15) has been installed, cooperate fixedly position, the ladder left and right sides with oil pipe and the suspension hook vertical line is overlapped with polished rod, can also be provided with safety rope (16) on the described U-shaped lever.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100158034A CN101054890B (en) | 2007-05-30 | 2007-05-30 | Well mouth safe ladder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100158034A CN101054890B (en) | 2007-05-30 | 2007-05-30 | Well mouth safe ladder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101054890A true CN101054890A (en) | 2007-10-17 |
| CN101054890B CN101054890B (en) | 2010-10-27 |
Family
ID=38794914
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007100158034A Expired - Fee Related CN101054890B (en) | 2007-05-30 | 2007-05-30 | Well mouth safe ladder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101054890B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104047536A (en) * | 2014-07-09 | 2014-09-17 | 常熟市尚高机械设备有限公司 | Safe climbing ladder |
| CN113915430A (en) * | 2021-10-12 | 2022-01-11 | 安徽春辉仪表线缆集团有限公司 | High leakproofness magnetism turns over post liquid level meter |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4251176A (en) * | 1978-08-31 | 1981-02-17 | Otis Engineering Corporation | Well tubing handling apparatus |
| CN2074358U (en) * | 1990-07-05 | 1991-04-03 | 薛聪会 | Hoisting machine for deep-well pump |
| CN2183438Y (en) * | 1993-10-20 | 1994-11-23 | 任遥遥 | Two-purpose telescopic ladder |
| CN2821125Y (en) * | 2005-09-16 | 2006-09-27 | 李达 | Folding ladder |
| CN200955347Y (en) * | 2006-09-21 | 2007-10-03 | 周宏强 | Well-head safety operation ladder |
-
2007
- 2007-05-30 CN CN2007100158034A patent/CN101054890B/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104047536A (en) * | 2014-07-09 | 2014-09-17 | 常熟市尚高机械设备有限公司 | Safe climbing ladder |
| CN113915430A (en) * | 2021-10-12 | 2022-01-11 | 安徽春辉仪表线缆集团有限公司 | High leakproofness magnetism turns over post liquid level meter |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101054890B (en) | 2010-10-27 |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: LI XIUMEI Free format text: FORMER OWNER: ZHOU HONGQIANG Effective date: 20100708 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Feng Shuanghai Inventor after: Li Hui Inventor after: Li Xia Inventor after: Wu Yanxia Inventor after: Wang Yanxin Inventor after: Zhang Yuwei Inventor after: Zhang Yuxiang Inventor after: Li Xiumei Inventor before: Li Xiumei Inventor before: Zhang Rongguo Inventor before: Han Zhigang Inventor before: Xin Weijun Inventor before: Li Qun Inventor before: Ma Jun Inventor before: Wang Pengbo Inventor before: Zhou Hongqiang |
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| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: LI XIUMEI ZHANG RONGGUO HAN ZHIGANG XIN WEIJUN LI QUN MA JUN WANG PENGBO ZHOU HONGQIANG TO: FENG SHUANGHAI LI HUI LI XIA WU YANXIA WANG YANXIN ZHANG YUWEI ZHANG YUXIANG LI XIUMEI Free format text: CORRECT: ADDRESS; FROM: 257400 NO.2, UNIT 2, BUILDING 287, JIABIN RESIDENTIAL QUATER, 4TH MINE, LIJIN COUNTY, SHANDONG PROVINCE TO: 257500 CHOUYOUMO STATION, SHENGLI OILFIELD, HAOJIA TOWN, KENLI COUNTY, SHANDONG PROVINCE |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20100708 Address after: 257500 heavy oil terminal station, Shengli Oilfield, Kenli County, Shandong Applicant after: Li Xiumei Address before: Four No. 257400 Shandong province Lijin County Jia bin District 287 building two unit 2 Applicant before: Zhou Hongqiang |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101027 Termination date: 20110530 |