CN114934753B - Cover type turning plate elevator - Google Patents
Cover type turning plate elevator Download PDFInfo
- Publication number
- CN114934753B CN114934753B CN202210755198.9A CN202210755198A CN114934753B CN 114934753 B CN114934753 B CN 114934753B CN 202210755198 A CN202210755198 A CN 202210755198A CN 114934753 B CN114934753 B CN 114934753B
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- CN
- China
- Prior art keywords
- clamping plates
- valve body
- driving
- clamping
- elevator
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/02—Rod or cable suspensions
- E21B19/06—Elevators, i.e. rod- or tube-gripping devices
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B50/00—Energy efficient technologies in elevators, escalators and moving walkways, e.g. energy saving or recuperation technologies
Abstract
The application belongs to the technical field of hydraulic elevator, and particularly relates to a sleeve type turning plate elevator. The device comprises a valve body, a first panel turnover mechanism and a rotating mechanism, wherein a through hole is formed in the center of the valve body; the first panel turnover mechanism comprises two oppositely arranged first clamping plates, the joint ends of the two first clamping plates are respectively provided with a first opening, the two first openings form bayonets with a first diameter on the axis of the through hole, and the tail ends of the two first clamping plates are respectively connected with a first driving device so as to drive the two first clamping plates to rotate around the tail ends of the two first clamping plates to switch between a release state and a locking state; the rotary mechanism comprises two suspension arms and two driving parts which are symmetrically arranged on two sides of the valve body, the lower ends of the suspension arms are rotationally connected with the rotation center of the side face of the valve body, the first ends of the driving parts are hinged with the suspension arms, and the second ends of the driving parts obliquely extend to be hinged with the side face of the valve body. The side door opening device is used for solving the problem that a drilling tool is easy to fall when a side door of a side opening elevator is accidentally opened.
Description
Technical Field
The application belongs to the technical field of hydraulic elevator, and particularly relates to a sleeve type turning plate elevator.
Background
Hydraulic elevator is a tool used to lift a tubular string in oil and gas drilling. In tripping operation, the pipe strings such as drill pipes, drill collars, oil pipes and the like are suspended.
At present, the conventional elevator adopts a side-open structure design, and a hydraulic cylinder is used for driving a valve to open and close. Through changing the lining, the pipe columns of drill pipes, drill collars, oil pipes and the like with different specifications are suspended.
However, the side-open construction of the elevator presents a safety risk of the drill slipping off when the side door is accidentally bumped.
Disclosure of Invention
The technical problem to be solved by the embodiment of the application is to overcome the defects of the prior art, and provide the sleeve type flap elevator for solving the problem that a drilling tool is easy to drop when a side door of the side-opening elevator is accidentally opened.
The technical scheme for solving the technical problems is as follows:
a sleeved flap elevator, comprising: the center of the valve body is provided with a through hole;
the first panel turnover mechanism comprises two oppositely arranged first clamping plates, the joint ends of the two first clamping plates are respectively provided with a first opening, the two first openings form bayonets with a first diameter on the axis of the through hole, and the tail ends of the two first clamping plates are respectively connected with a first driving device so as to drive the two first clamping plates to rotate around the tail ends of the two first clamping plates to switch between a disengaging state and a locking state;
the rotary mechanism comprises two suspension arms and two driving parts, wherein the two suspension arms and the two driving parts are symmetrically arranged on two sides of the valve body, the lower ends of the suspension arms are rotationally connected with the rotation center of the side face of the valve body, the first ends of the driving parts are hinged with the suspension arms, and the second ends of the driving parts obliquely extend to be hinged with the side face of the valve body.
Compared with the prior art, the technical scheme has the following beneficial effects:
the sleeve type elevator with the through hole is formed in the center, the first openings in the two first clamping plates are utilized to form the bayonet coaxial with the through hole to clamp the drilling tool, the problem that the drilling tool falls when the side door is accidentally opened is avoided by changing the bayonet into the bayonet from the end part of the drilling tool, the sleeve type elevator is safe and reliable, the valve body is driven to rotate around the rotation center of the hinged part of the suspension arm through the obliquely extending driving piece, the rotation ratio is driven at the rotation center in the past, the force arm is lengthened, and the rotation is more labor-saving and convenient.
Further, the method further comprises the following steps:
the second panel turnover mechanism comprises two second clamping plates which are oppositely arranged, the joint ends of the two second clamping plates are respectively provided with a second opening, the two second openings form bayonets with second diameters different from the first diameters on the axis of the through hole, and the tail ends of the two second clamping plates are respectively connected with a second driving device so as to drive the two second clamping plates to rotate around the tail ends of the second clamping plates to switch between a release state and a locking state.
Through setting up second panel turnover mechanism, form a second diameter bayonet socket different with first diameter, be applicable to the drilling tool of different specifications, reduce the operation in the manual work use.
Further, the two first clamping plates are stacked on the upper end face of the through hole in the locking state, and the two first clamping plates rotate upwards around the tail ends of the first clamping plates to be opened in the releasing state.
Because the elevator hangs the drilling string in-process, the atress direction is downward, and the closure state of first cardboard presses in the via hole upper end, and the disengagement state of first cardboard is upwards opening, can not open downwards, guarantees the security that the elevator held the drilling string.
Further, the second clamping plates are stacked on the surfaces of the first clamping plates to form a stacked structure when in the locking state, and the two second clamping plates rotate to the outer sides of the two first clamping plates when in the unlocking state.
Further, the first opening and the second opening are both tapered openings.
Further, the first driving device and the second driving device have the same structure, and the second driving device comprises:
a driving oil cylinder;
and one end of the connecting rod is hinged with the output end of the driving oil cylinder, and the other end of the connecting rod is hinged with the tail end of the second clamping plate.
Further, the second driving device further includes:
the guide sliding groove is arranged along the extension and retraction direction of the driving oil cylinder;
the guide sliding block is connected in the guide sliding groove in a sliding manner, and is also sleeved on an output rod of the driving oil cylinder.
The design that the driving oil cylinder and the connecting rod are matched with the guide sliding block is adopted, so that the oil cylinder is prevented from being stressed by lateral force, and the service life of the oil cylinder is prolonged.
Further, the rotation mechanism further includes: and one end of the rotating arm is fixed on the suspension arm, and the other end of the rotating arm is biased towards one side far away from the second end of the driving piece and hinged with the first end of the driving piece.
By arranging the rotating arm, the telescopic range of the driving piece is prolonged, and the angle of the rotating valve body is improved.
Further, the device also comprises a clamping seat which is fixed on the suspension arm, wherein a limiting protrusion is arranged on the circumferential surface of the clamping seat, and a limiting groove is circumferentially formed in the rotating arm which is rotationally connected with the clamping seat.
Utilize the spacing arch of setting in the spacing groove for can carry out certain angle between cassette and the swinging boom and float the rotation, in order to adapt to drilling string deflection angle.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present application, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic overall structure of an embodiment of the present application.
Fig. 2 is a schematic side view of fig. 1.
Fig. 3 is a schematic top view of fig. 1.
Fig. 4 is a schematic view of the cross-sectional structure of A-A in fig. 1.
Fig. 5 is a schematic view of the cross-sectional structure of fig. 2 in the C-C direction.
Fig. 6 is a schematic structural view of a locked state and an unlocked state according to an embodiment of the present application.
Reference numerals:
1. a valve body; 2. a via hole;
3. a first flap mechanism;
31. a first clamping plate; 32. a first opening;
4. a second flap mechanism;
41. a second clamping plate; 42. a second opening;
5. a third flap mechanism;
51. a third clamping plate; 52. a third opening;
6. a rotation mechanism;
61. a suspension arm; 62. a driving member; 63. a rotating arm;
7. a second driving device;
71. a driving oil cylinder; 72. a connecting rod;
8. a guide chute; 9. a guide slide block;
10. a clamping seat; 11. a limit protrusion; 12. a limit groove;
13. a rotating shaft.
Detailed Description
Embodiments of the technical scheme of the present application will be described in detail below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present application, and thus are merely examples, and are not intended to limit the scope of the present application.
It is noted that unless otherwise indicated, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this application belongs.
In the description of the present application, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", etc., are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present application.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. In the description of the present application, the meaning of "plurality" is two or more unless specifically defined otherwise.
In the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.
As shown in fig. 1 to 5, a sleeved flap elevator provided by an embodiment of the present application includes: the valve comprises a valve body 1, a first panel turnover mechanism 3 and a rotating mechanism 6, wherein a through hole 2 is formed in the center of the valve body 1, the diameter of the through hole 2 can pass through a pipe column with the maximum diameter, and an opening at the lower end of the through hole 2 is a gradually expanding conical opening.
The first panel turnover mechanism 3 comprises two oppositely arranged first clamping plates 31, the joint ends of the two first clamping plates 31 are respectively provided with a first opening 32, the two first openings 32 form a bayonet with a first diameter on the axis of the through hole 2, the tail ends of the two first clamping plates 31 are respectively connected with a first driving device so as to drive the two first clamping plates 31 to rotate around the tail ends of the two first clamping plates to switch between a release state and a locking state, and when in the locking state, the two first openings 32 are folded to form a circular bayonet.
Specifically, the two first clamping plates 31 are stacked on the upper end surface of the via hole 2 in the locked state, and the two first clamping plates 31 are rotated upwards around the tail ends thereof in the unlocked state.
Because the elevator hangs the drilling string in-process, the atress direction is downward, and the closure state of first cardboard 31 presses in the via hole 2 upper end, and the disengagement state of first cardboard 31 is upwards opening, can not open downwards, guarantees the security that the elevator held the drilling string.
The rotating mechanism 6 comprises two suspension arms 61 and two driving pieces 62 which are symmetrically arranged on two sides of the valve body 1, the lower ends of the suspension arms 61 are rotationally connected with the rotation center of the side face of the valve body 1, the first ends of the driving pieces 62 are hinged with the suspension arms 61, and the second ends of the driving pieces obliquely extend to be hinged with the side face of the valve body 1.
The sleeve type elevator with the through hole 2 is arranged in the center, the first openings 32 on the two first clamping plates 31 are utilized to form a bayonet coaxial with the through hole 2 to clamp the drilling tool, the problem that the drilling tool falls when the side door is accidentally opened is avoided by changing the formation of the clamping joint from the end part of the drilling tool, the sleeve type elevator is safe and reliable, the valve body 1 is driven to rotate around the rotation center of the hinged part of the suspension arm 61 through the obliquely extending driving piece 62, the rotation ratio is driven at the rotation center in the past, the force arm is lengthened, and the rotation is more labor-saving and convenient.
In this embodiment, the second panel turnover mechanism 4 further includes a second panel turnover mechanism 4, the second panel turnover mechanism 4 includes two second panels 41 disposed opposite to each other, the joint ends of the two second panels 41 are respectively provided with a second opening 42, the two second openings 42 form a bayonet with a second diameter different from the first diameter on the axis of the via hole 2, and the tail ends of the two second panels 41 are respectively connected with a second driving device 7, so as to drive the two second panels 41 to rotate around the tail ends thereof to switch between a disengaged state and a locked state.
Through setting up second panel turnover mechanism 4, form a second diameter bayonet socket different with first diameter, be applicable to the drilling tool of different specifications, reduce the operation in the manual work use.
Specifically, the second clamping plates 41 are stacked on the surface of the first clamping plate 31 in the locked state to form a stacked structure, and the two second clamping plates 41 rotate to the outer sides of the two first clamping plates 31 in the unlocked state.
In this embodiment, in order to adapt to more drilling tools with different specifications, the drilling tool further comprises a third plate turnover mechanism 5, the plate turnover mechanism comprises two third clamping plates 51 which are oppositely arranged, the joint ends of the two third clamping plates 51 are respectively provided with a third opening 52, the two third openings 52 form bayonets with third diameters different from the first diameter and the second diameter on the axis of the through hole 2, and the tail ends of the two third clamping plates 51 are respectively connected with a third driving device so as to drive the two third clamping plates 51 to rotate around the tail ends of the two third clamping plates to switch between a release state and a locking state.
The third clamping plates 51 are stacked on the surface of the second clamping plate 41 to form a stacked structure in the locking state, and the two third clamping plates 51 rotate to the outer sides of the two second clamping plates 41 in the releasing state.
The third clamping plate 51, the second clamping plate 41 and the first clamping plate 31 are sequentially stacked from bottom to top in a locking state, the lengths of the third clamping plate 51, the second clamping plate 41 and the first clamping plate 31 are sequentially increased, and in the locking state, the first clamping plate 31, the second clamping plate 41 and the third clamping plate 51 form a trapezoid arrangement with a wide upper part and a narrow lower part, so that the rotation of the first clamping plate 31, the second clamping plate 41 and the third clamping plate 51 is facilitated, and mutual influence is avoided.
Wherein the third diameter, the second diameter and the first diameter are sequentially increased; when the third-diameter bayonet is used for clamping the drilling tool, the first clamping plate 31, the second clamping plate 41 and the third clamping plate 51 are all in a locking state, and the uppermost-layer bayonet with the third diameter is used for clamping the drilling tool; when the drilling tool is clamped by the bayonet with the second diameter, the third clamping plate 51 at the uppermost layer is opened to be in a disengaging state, and the second clamping plate 41 and the first clamping plate 31 are in a locking state; when the drilling tool is held by the bayonet of the first diameter, the first clamping plate 31 is in a locking state, and the second clamping plate 41 and the third clamping plate are opened to be in a releasing state.
Wherein, the first opening 32 and the second opening 42 are tapered openings for being adapted to be clamped with the neck of the drilling tool.
In this embodiment, the first driving device has the same structure as the second driving device 7 and the third driving device, the first driving device, the second driving device 7 and the third driving device are disposed in the valve body 1 side by side, and the second driving device 7 includes a driving oil cylinder 71 and a connecting rod 72 disposed in the valve body 1.
One end of the connecting rod 72 is hinged to the output end of the driving cylinder 71, and the other end is hinged to the tail end of the second clamping plate 41.
As shown in fig. 4 and 6, the two second clamping plates 41 are hinged to the valve body 1 through the rotating shaft 13 at positions close to the tail ends, and when the connecting rod 72 drives the second clamping plates 41 to rotate from the locking state to the releasing state, the joint ends of the right second clamping plates 41 rotate in the angle range of the second quadrant around the rotating shaft 13, and the joint ends of the left second clamping plates 41 corresponding to the right rotate in the angle range of the first quadrant around the rotating shaft 13.
The first clamping plate 31 and the third clamping plate 51 are identical to the second clamping plate 41 in arrangement, are hinged with the valve body 1 through the rotating shaft 13, and when the valve body rotates from the locking state to the releasing state, the first clamping plate 31 and the third clamping plate 51 which are oppositely arranged at the left side and the right side rotate in the angle ranges of the second quadrant and the first quadrant respectively.
The second driving device 7 further includes: a guide chute 8 and a guide slide 9.
The guide chute 8 is arranged along the extension and retraction direction of the driving oil cylinder 71; the guide sliding block 9 is slidably connected to the guide sliding groove 8, and the guide sliding block 9 is also sleeved on the output rod of the driving oil cylinder 71.
The design that the driving oil cylinder 71 and the connecting rod 72 are matched with the guide sliding block 9 is adopted, so that the oil cylinder is prevented from being stressed by lateral force, and the service life of the oil cylinder is prolonged.
The rotation mechanism 6 further includes: the rotating arm 63, one end of the rotating arm 63 is fixed on the boom 61, the other end is biased towards the side far away from the second end of the driving piece 62, and is hinged with the first end of the driving piece 62, and by setting the rotating arm 63, the expansion and contraction range of the driving piece 62 is prolonged, and the angle of the rotary valve body 1 is improved.
As shown in fig. 1 and 3, the device further comprises a clamping seat 10, the clamping seat 10 is fixed on the suspension arm 61, a limiting protrusion 11 is arranged on the peripheral surface of the clamping seat 10, the limiting protrusion 11 can be realized by bolts, a limiting groove 12 is circumferentially formed in the rotating arm 63 which is rotationally connected with the clamping seat 10, the limiting protrusion 11 can be realized by bolts, the limiting groove 12 is set to 16 ° -20 ° at the central angle of the rotation center of the clamping seat 10 and the rotating arm 63, and a certain angle of floating rotation can be performed between the clamping seat 10 and the rotating arm 63 by utilizing the limiting protrusion 11 arranged in the limiting groove 12 so as to adapt to the deflection angle of a drill string, so that the clamping tool can swing along with the clamping seat in a certain angle range after the clamping tool, and damage of an oil cylinder or other parts caused by stress deflection of the clamping tool is avoided.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the application.
Claims (5)
1. The utility model provides a cover formula turns over board elevator which characterized in that includes: the center of the valve body is provided with a through hole;
the first panel turnover mechanism comprises two oppositely arranged first clamping plates, the joint ends of the two first clamping plates are respectively provided with a first opening, the two first openings form bayonets with a first diameter on the axis of the through hole, and the tail ends of the two first clamping plates are respectively connected with a first driving device so as to drive the two first clamping plates to rotate around the tail ends of the two first clamping plates to switch between a disengaging state and a locking state;
the rotary mechanism comprises two suspension arms and two driving parts, the two suspension arms and the two driving parts are symmetrically arranged on two sides of the valve body, the lower ends of the suspension arms are rotationally connected with the rotation center of the side face of the valve body, the first ends of the driving parts are hinged with the suspension arms, and the second ends of the driving parts obliquely extend to be hinged with the side face of the valve body;
the rotation mechanism further includes: one end of the rotating arm is fixed on the suspension arm, and the other end of the rotating arm is biased towards one side far away from the second end of the driving piece and hinged with the first end of the driving piece;
the device also comprises a clamping seat, wherein the clamping seat is fixed on the suspension arm, a limiting bulge is arranged on the circumferential surface of the clamping seat, and a limiting groove is formed in the circumferential direction of the rotating arm rotationally connected with the clamping seat;
the second panel turnover mechanism comprises two second clamping plates which are oppositely arranged, the joint ends of the two second clamping plates are respectively provided with a second opening, the two second openings form bayonets with second diameters different from the first diameters on the axis of the through hole, and the tail ends of the two second clamping plates are respectively connected with a second driving device so as to drive the two second clamping plates to rotate around the tail ends of the second clamping plates to switch between a disengaging state and a locking state;
the second clamping plates are stacked on the surfaces of the first clamping plates to form a stacked structure when in the locking state, and the two second clamping plates rotate to the outer sides of the two first clamping plates when in the disengaging state.
2. The telescopic flap elevator of claim 1, wherein the two first clips are stacked on the upper end surface of the via hole in the locked state, and the two first clips are rotated upward about the tail end thereof in the unlocked state.
3. The sleeve-type flap elevator of claim 1, wherein the first opening and the second opening are both tapered openings.
4. The telescopic flap elevator of claim 1, wherein the first drive is structurally identical to the second drive, the second drive comprising:
a driving oil cylinder;
and one end of the connecting rod is hinged with the output end of the driving oil cylinder, and the other end of the connecting rod is hinged with the tail end of the second clamping plate.
5. The telescopic flap elevator of claim 4, wherein the second drive further comprises:
the guide sliding groove is arranged along the extension and retraction direction of the driving oil cylinder;
the guide sliding block is connected in the guide sliding groove in a sliding manner, and is also sleeved on an output rod of the driving oil cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210755198.9A CN114934753B (en) | 2022-06-28 | 2022-06-28 | Cover type turning plate elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210755198.9A CN114934753B (en) | 2022-06-28 | 2022-06-28 | Cover type turning plate elevator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114934753A CN114934753A (en) | 2022-08-23 |
| CN114934753B true CN114934753B (en) | 2023-08-29 |
Family
ID=82869311
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210755198.9A Active CN114934753B (en) | 2022-06-28 | 2022-06-28 | Cover type turning plate elevator |
Country Status (1)
| Country | Link |
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| CN (1) | CN114934753B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116084858B (en) * | 2023-04-10 | 2023-06-23 | 天津市正方科技发展有限公司 | Safety hoisting device for oilfield workover operation |
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| CN105064930A (en) * | 2015-09-01 | 2015-11-18 | 扬州华能石化机械有限公司 | Hydraulic lifting sub capable of overturning automatically |
| CN106894772A (en) * | 2017-03-14 | 2017-06-27 | 三集团有限公司湖南分公司 | Rod elevator and sucker rod boom hoisting |
| CN206352488U (en) * | 2016-12-09 | 2017-07-25 | 宝鸡石油机械有限责任公司 | Oil-well rig reversible hydraulic elevator |
| CN110630190A (en) * | 2019-11-04 | 2019-12-31 | 胜利油田胜机石油装备有限公司 | Box elevator and well repair equipment |
| CN111305768A (en) * | 2020-04-17 | 2020-06-19 | 韩一泉 | Closed linkage flap elevator |
| CN112127812A (en) * | 2020-11-03 | 2020-12-25 | 黄山华能石化机械有限公司 | Hydraulic turnover side swing elevator |
| CN112196480A (en) * | 2020-09-27 | 2021-01-08 | 无锡智瀚能源科技装备与服务有限公司 | Open type elevator suitable for various pipe diameter specifications |
| CN212614576U (en) * | 2021-01-05 | 2021-02-26 | 胜利油田胜机石油装备有限公司 | Anti-opening mechanism for elevator and overturning elevator |
-
2022
- 2022-06-28 CN CN202210755198.9A patent/CN114934753B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105064930A (en) * | 2015-09-01 | 2015-11-18 | 扬州华能石化机械有限公司 | Hydraulic lifting sub capable of overturning automatically |
| CN206352488U (en) * | 2016-12-09 | 2017-07-25 | 宝鸡石油机械有限责任公司 | Oil-well rig reversible hydraulic elevator |
| CN106894772A (en) * | 2017-03-14 | 2017-06-27 | 三集团有限公司湖南分公司 | Rod elevator and sucker rod boom hoisting |
| CN110630190A (en) * | 2019-11-04 | 2019-12-31 | 胜利油田胜机石油装备有限公司 | Box elevator and well repair equipment |
| CN111305768A (en) * | 2020-04-17 | 2020-06-19 | 韩一泉 | Closed linkage flap elevator |
| CN112196480A (en) * | 2020-09-27 | 2021-01-08 | 无锡智瀚能源科技装备与服务有限公司 | Open type elevator suitable for various pipe diameter specifications |
| CN112127812A (en) * | 2020-11-03 | 2020-12-25 | 黄山华能石化机械有限公司 | Hydraulic turnover side swing elevator |
| CN212614576U (en) * | 2021-01-05 | 2021-02-26 | 胜利油田胜机石油装备有限公司 | Anti-opening mechanism for elevator and overturning elevator |
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| Publication number | Publication date |
|---|---|
| CN114934753A (en) | 2022-08-23 |
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