CN103192745A - Driller operating seat of driller room of petroleum drilling machine - Google Patents

Driller operating seat of driller room of petroleum drilling machine Download PDF

Info

Publication number
CN103192745A
CN103192745A CN2013100639114A CN201310063911A CN103192745A CN 103192745 A CN103192745 A CN 103192745A CN 2013100639114 A CN2013100639114 A CN 2013100639114A CN 201310063911 A CN201310063911 A CN 201310063911A CN 103192745 A CN103192745 A CN 103192745A
Authority
CN
China
Prior art keywords
seat
driller
box body
air bag
plate
Prior art date
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.)
Granted
Application number
CN2013100639114A
Other languages
Chinese (zh)
Other versions
CN103192745B (en
Inventor
张文英
田磊
周天明
孙江锋
游娜
张远宁
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China National Petroleum Corp
Baoji Oilfield Machinery Co Ltd
CNPC National Oil and Gas Drilling Equipment Engineering Technology Research Center Co Ltd
Original Assignee
Baoji Oilfield Machinery Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Baoji Oilfield Machinery Co Ltd filed Critical Baoji Oilfield Machinery Co Ltd
Priority to CN201310063911.4A priority Critical patent/CN103192745B/en
Publication of CN103192745A publication Critical patent/CN103192745A/en
Application granted granted Critical
Publication of CN103192745B publication Critical patent/CN103192745B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Abstract

The invention discloses a driller operating seat of a driller room of a petroleum drilling machine. The driller operating seat comprises a rotating part, a lifting part, a seat and a box body. The rotating part adopts the structure that a bearing outer ring of a turnplate is fixedly mounted on the upper surface of a seat fixing plate; a mounting cylinder is fixedly mounted at the axis position of the seat fixing plate; a plurality of diaphragm type clamping cylinders are mounted on the mounting cylinder circumferentially and uniformly; the outer circumferences of the diaphragm type clamping cylinders are contacted with a bearing inner ring of the turnplate; a rotating limiting plate is arranged on the seat fixing plate; and a convex block corresponding to the rotating limiting plate is arranged on the lower edge of the bearing inner ring of the turnplate. The driller operating seat of the driller room solves the problems that a hydraulic cylinder leaks oil during lifting, an air cylinder is locked unreliably during lifting, the upper box body of the handrail operating box cannot be fixed reliably after being opened, upper and lower box bodies are sealed unreliably, the cable trend is influenced by excessive up-and-down motion guide rods and a rotating locking mechanism is not provided in the conventional products.

Description

A kind of oil-well rig driller house driller operates seat
Technical field
The invention belongs to the petroleum machinery equipment technical field, relate to a kind of oil-well rig driller house driller and operate seat.
Background technology
The oil-well rig driller control house is the indispensable component part of modern drilling machine, and the driller operates the carrier that seat is various operation control command transmission in driller's routine, therefore a kind of dependable performance, Work seat that comfort level is high, what show concerning the driller is particularly important.
Summary of the invention
The purpose of this invention is to provide a kind of oil-well rig driller house driller and operate seat, solved that like product fluid cylinder lifting leakage of oil of the prior art, cylinder lifting locking is unreliable, handrail operating case upper cartridge body can not secure fixation after opening, unreliable, the up-and-down movement pilot bar of sealing too much influences cable louding, the problem of catch gear without spin between the upper and lower box body.
The technical solution adopted in the present invention is, a kind of oil-well rig driller house driller operates seat, comprises rotating part, lifting part, seat and box body,
Described rotating part structure is, comprise the seat adapter plate, be installed with the outside race of rotating disk at seat adapter plate upper surface, shaft core position at the seat adapter plate is installed with the installation tube, along circumferentially evenly being installed, a plurality of diaphragm types clamp cylinder at the circumference that tube is installed, all diaphragm types clamp the cylinder excircle and contact with the bearing inner ring of rotating disk, and the seat adapter plate is provided with the rotary stopper plate, is provided with the projection corresponding with the rotary stopper plate in turntable bearing inner ring lower edge;
The lifting part-structure is, is installed with the bearing upper junction plate in turntable bearing inner ring upper edge, is installed with interior orienting sleeve at bearing upper junction plate cylindrical, is installed with support tube in the bearing upper junction plate upper surface axle center of interior orienting sleeve inner chamber; Be installed with the air bag lower carrier plate at the support tube top, at the air bag lower carrier plate air bag arranged fixedly, at the air bag top air bag upper cover plate is installed; Outer at the air bag upper cover plate is installed with the outer guide sleeve flange downwards, and the outer guide sleeve flange is installed with outer guide sleeve downwards, and outer guide sleeve is sleeved on interior orienting sleeve periphery;
The structure of seat and box portion is, comprises square box, and the square box lower surface is captiveed joint with the air bag upper cover plate, is provided with seat in the slide rail of the upper surface of square box; The square box left and right sides respectively is installed with two support tubes, is provided with a support tube flange gasket between each support tube lower end and the square box, and the common carrying in the top of two support tubes of every side is equipped with a handrail operating case;
The handrail operating case of every side comprises a upper cartridge body and a lower box body, and lower box body upper edge arranged outside has a circle lower box body reinforcing pad, is provided with a circle in lower box body reinforcing pad upper edge groove is installed, and in this groove packing seal is installed; The upper cartridge body lower edge is provided with the upper cartridge body reinforcing pad, and upper cartridge body reinforcing pad spiral-lock is in lower box body reinforcing pad upper edge and the outside, inwardly radially passes the end roof pressure of holding screw of upper cartridge body reinforcing pad on the outer lower inclined plane of lower box body reinforcing pad; Upper cartridge body and the lower box body outside are installed with lap belt.
The invention has the beneficial effects as follows that adopt air bag as lifting mechanism, base up-and-down movement speed steadily is easy to control, reliable lock; The seat up-and-down movement adopts two big-inch pipes can realize directional tagging as orienting sleeve, can play the effect of guard shield again, and not take the space that cable passes through; Utilize six pneumatic tyre formula diaphragm types to clamp cylinder, the seat secure fixation can be avoided the improper rotation of driller's seat; Seat is provided with the rotary stopper structure can prevent that revolution angle of chair is excessive, the damage interconnection cable.This driller left and right sides handrail control capsule faying face adopts the rubber gasket sealing, the holding screw end of passing the upper cartridge body reinforcing pad acts on the inclined-plane of lower box body reinforcing pad, alternately tighten holding screw, upper cartridge body just is pressed on the lower box body uniformly, and the box body air-tightness is good.Can make very comfortable the carrying out the work of staff of different statures by adjusting seat whole height, cushion height, cushion front and back position, backrest inclination angle, stretcher height.
Description of drawings
Fig. 1 operates seat overall structure scheme drawing for driller of the present invention;
Fig. 2 operates seat lifting rotating mechanism cutaway view for driller of the present invention;
Fig. 3 operates seat lifting rotating mechanism local structure scheme drawing for driller of the present invention;
Fig. 4 is driller's operation support armrest of seat operating case part sectional view of the present invention.
Among the figure, 1. seat, 2. left handrail operating case upper cartridge body, 3. the support tube flange gasket, 4. left handrail operating case lower box body, 5. support tube, 6. square box, 7. outer guide sleeve, 8. in orienting sleeve, 9. seat adapter plate, 10. stretcher, 11. right handrail operating case upper cartridge bodies, 12. right handrail operating case lower box bodies, 13. holding screws; 14. air bag upper cover plate, 15. outer guide sleeve flanges, 16. air bags, 17. air bag lower carrier plates, 18. support tubes, 19. bearing upper junction plates, 20. bearing inner rings, 21. outside race, 22. diaphragm type clamps cylinder, 23. install tube, 24. rotary stopper plates, 25. upper cartridge body, 26. last reinforcing pad, 27. times reinforcing pads, 28. lower box bodies, 29. lap belt, 30. packing seals.
The specific embodiment
Oil-well rig driller house driller operation support structure of chair of the present invention is, comprises rotating part, lifting part, seat and box body,
With reference to Fig. 1, Fig. 2, the structure of rotating part is, comprise the seat adapter plate 9 that is fixed on the floor, be installed with the outside race 21 of rotating disk at seat adapter plate 9 upper surfaces (by a plurality of tie bolts), shaft core position at seat adapter plate 9 is installed with installation tube 23, along circumferentially evenly being installed, a plurality of diaphragm types clamp cylinder 22 at the excircle that tube 23 is installed, all diaphragm types clamp cylinder 22 excircles and contact with the bearing inner ring 20 of rotating disk, seat adapter plate 9 is provided with rotary stopper plate 24, be provided with the projection corresponding with rotary stopper plate 24 in turntable bearing inner ring 20 lower edges, after all diaphragm types clamp cylinder 22 inflation pressurizations, its outside face evenly is close on the turntable bearing inner ring 20, under the effect of friction force seat is stopped operating or remains on original position;
With reference to Fig. 3, the lifting part-structure is, (by several bolts) are installed with bearing upper junction plate 19 in turntable bearing inner ring 20 upper edges, orienting sleeve 8 in bearing upper junction plate 19 cylindricals are installed with is installed with support tube 18 in the bearing upper junction plate 19 upper surface axle center of interior orienting sleeve 8 inner chambers; Be installed with air bag lower carrier plate 17 at support tube 18 tops, (utilizing SOC.HD. cap screw) on air bag lower carrier plate 17 fixedly has air bag 16, at air bag 16 tops air bag upper cover plate 14 is installed; Outer at air bag upper cover plate 14 is installed with outer guide sleeve flange 15 downwards, and outer guide sleeve flange 15 is installed with outer guide sleeve 7 downwards, and outer guide sleeve 7 is sleeved on interior orienting sleeve 8 peripheries;
With reference to Fig. 1, the structure of seat and box portion is to comprise square box 6, square box 6 lower surfaces are captiveed joint with air bag upper cover plate 14, the upper surface of square box 6 is provided with slide rail, is provided with seat 1 in the slide rail, is provided with between seat 1 and the slide rail to slide the regulating mechanism of front and back position in front and back; Square box 6 installed in front have stretcher 10, and stretcher 10 is provided with the regulating mechanism that can regulate height manually; Square box 6 left and right sides respectively are installed with two support tubes 5, be provided with a support tube flange gasket 3 between each support tube 5 lower end and the square box 6, the common carrying in the top of two support tubes 5 of every side is equipped with a handrail operating case, left side handrail operating case comprises left handrail operating case upper cartridge body 2 and left handrail operating case lower box body 4, and right handrail operating case comprises right handrail operating case upper cartridge body 11 and right handrail operating case lower box body 12;
With reference to Fig. 4, the handrail operating case of every side comprises a upper cartridge body 25 and a lower box body 28, left and right sides handrail control capsule faying face adopts the rubber gasket sealing, form a smooth faying face respectively after fixing by the reinforcing pad that is welded on the box body outside, lower box body 28 upper edge arranged outside have a circle lower box body reinforcing pad 27, be provided with a circle in lower box body reinforcing pad 27 upper edges groove is installed, packing seal 30 is installed in this groove, the existence of groove can avoid packing seal 30 to come off; Upper cartridge body 25 lower edges are provided with upper cartridge body reinforcing pad 26, upper cartridge body reinforcing pad 26 spiral-locks are in lower box body reinforcing pad 27 upper edges and the outside, upper cartridge body reinforcing pad 26 is realized sealing with lower box body reinforcing pad 27 upper edges by packing seal 30, inwardly radially pass the end roof pressure of holding screw 13 of upper cartridge body reinforcing pad 26 on the outer lower inclined plane of lower box body reinforcing pad 27, play the tightening state of upper cartridge body reinforcing pad 26 to lower stress that make, alternately tighten holding screw 13, upper cartridge body 25 just is pressed on the packing seal 30 in the lower box body groove uniformly; Upper cartridge body 25 is installed with lap belt 29 with lower box body 28 outsides, when needs are opened upper and lower box body, holding screw 13 is withdrawed from a little (holding screw 13 need not all to withdraw to dismantle), dig upper cartridge body 25, utilize lap belt 29 upper cartridge body 25 can be suspended on lower box body 28 outsides after opening.
Air bag 16 is by gas control check valve and lifting manipulation of switches and high-pressure air source UNICOM; Each diaphragm type clamps cylinder 23 simultaneously by rotational lock switch and high-pressure air source UNICOM.
The control principle that driller of the present invention operates seat is:
Gas control one-way valve opens when the lifting manipulation of switches is placed " rising " position, pressurized air flow into air bag 16, and air bag 16 tops begin upward movement, drive the lifting that makes progress of square box 6 and whole seat by air bag upper cover plate 14.
Gas control closed check valve when the lifting manipulation of switches is placed " stopping " position, pressurized air is closed in the air bag 16, and air bag 16 and whole seat stop up-and-down movement.
Gas control one-way valve opens when the lifting manipulation of switches is placed " decline " position, the pressurized air that is enclosed in the air bag 16 under the effect of seat deadweight is slowly discharged, and air bag 16 and whole seat begin slow decline.
Do not need seat when rotation, the rotational lock switch is placed " locking " position, pressurized air enters 6 diaphragm types and clamps 23,6 diaphragm types clampings of cylinder cylinder, 23 outside faces being attached on the turntable bearing inner ring 20 tightly, and seat is stopped operating.
When the needs seat rotated, when the rotational lock switch was placed " release " position, the pressurized airs that are enclosed in the diaphragm type clamping cylinder 23 were discharged, and the friction force that acts on the turntable bearing inner ring 20 disappears, and seat can rotate freely.
The characteristics of apparatus of the present invention are:
1) this seat integral body, is driven by air bag as power with pressurized air, but oscilaltion.By adopting manual Pneumatic valve operation, has the function of speed adjusting, up-and-down movement.
2) seat adopts inside and outside two cylinder sets to slide as the guide piece of up-and-down movement, also can play the effect of protective cover simultaneously.
3) utilize six diaphragm types to clamp cylinder, the seat secure fixation can be avoided the improper rotation of driller's seat.
4) left and right sides handrail operating case upper and lower box body utilizes rubber seal, the holding screw end of passing the upper cartridge body reinforcing pad acts on the inclined-plane of lower box body reinforcing pad, alternately tighten holding screw, upper cartridge body just is pressed on the packing seal in the lower box body groove uniformly, and the box body air-tightness is good.When opening upper cartridge body holding screw is rather gone out a little and get final product, need not to dismantle fully.
5) left and right sides handrail operating case, support tube, seal chamber of the unified composition of square box utilize external high-pressure air source can realize positive-pressure explosion-proof.
6) utilize lap belt upper cartridge body can be suspended on the lower box body outside after upper cartridge body opens, field wiring is very convenient with maintenance.

Claims (4)

1. an oil-well rig driller house driller operates seat, it is characterized in that: comprise rotating part, lifting part, seat and box body,
Described rotating part structure is, comprise seat adapter plate (9), be installed with the outside race (21) of rotating disk at seat adapter plate (9) upper surface, shaft core position at seat adapter plate (9) is installed with installation tube (23), along circumferentially evenly being installed, a plurality of diaphragm types clamp cylinder (22) at the circumference that tube (23) is installed, all diaphragm types clamp cylinder (22) excircle and contact with the bearing inner ring (20) of rotating disk, seat adapter plate (9) is provided with rotary stopper plate (24), is provided with the projection corresponding with rotary stopper plate (24) in turntable bearing inner ring (20) lower edge;
The lifting part-structure is, be installed with bearing upper junction plate (19) in turntable bearing inner ring (20) upper edge, be installed with interior orienting sleeve (8) at bearing upper junction plate (19) cylindrical, be installed with support tube (18) in bearing upper junction plate (19) the upper surface axle center of interior orienting sleeve (8) inner chamber; Be installed with air bag lower carrier plate (17) at support tube (18) top, at air bag lower carrier plate (17) air bag (16) arranged fixedly, at air bag (16) top air bag upper cover plate (14) is installed; Be installed with outer guide sleeve flange (15) downwards in the outer of air bag upper cover plate (14), outer guide sleeve flange (15) is installed with outer guide sleeve (7) downwards, and outer guide sleeve (7) is sleeved on interior orienting sleeve (8) periphery;
The structure of seat and box portion is, comprises square box (6), and square box (6) lower surface is captiveed joint with air bag upper cover plate (14), is provided with seat (1) in the slide rail of the upper surface of square box (6); Square box (6) left and right sides respectively is installed with two support tubes (5), be provided with a support tube flange gasket (3) between each support tube (5) lower end and the square box (6), the common carrying in the top of two support tubes (5) of every side is equipped with a handrail operating case;
The handrail operating case of every side comprises a upper cartridge body (25) and a lower box body (28), lower box body (28) upper edge arranged outside has a circle lower box body reinforcing pad (27), be provided with a circle in lower box body reinforcing pad (27) upper edge groove is installed, packing seal (30) is installed in this groove; Upper cartridge body (25) lower edge is provided with upper cartridge body reinforcing pad (26), upper cartridge body reinforcing pad (26) spiral-lock is in lower box body reinforcing pad (27) upper edge and the outside, inwardly radially passes the end roof pressure of holding screw (13) of upper cartridge body reinforcing pad (26) on the outer lower inclined plane of lower box body reinforcing pad (27); Upper cartridge body (25) is installed with lap belt (29) with lower box body (28) outside.
2. oil-well rig driller house driller according to claim 1 operates seat, it is characterized in that: be provided with between described seat (1) and the slide rail and can slide to regulate the mechanism of front and back position in front and back.
3. oil-well rig driller house driller according to claim 1 operates seat, it is characterized in that: described square box (6) installed in front has stretcher (10), and stretcher (10) is provided with the regulating mechanism that can regulate height manually.
4. oil-well rig driller house driller according to claim 1 operates seat, it is characterized in that: described air bag (16) is by gas control check valve and lifting manipulation of switches and high-pressure air source UNICOM; Each diaphragm type clamps cylinder (23) simultaneously by rotational lock switch and high-pressure air source UNICOM.
CN201310063911.4A 2013-02-28 2013-02-28 Driller operating seat of driller room of petroleum drilling machine Active CN103192745B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310063911.4A CN103192745B (en) 2013-02-28 2013-02-28 Driller operating seat of driller room of petroleum drilling machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310063911.4A CN103192745B (en) 2013-02-28 2013-02-28 Driller operating seat of driller room of petroleum drilling machine

Publications (2)

Publication Number Publication Date
CN103192745A true CN103192745A (en) 2013-07-10
CN103192745B CN103192745B (en) 2015-06-24

Family

ID=48715623

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201310063911.4A Active CN103192745B (en) 2013-02-28 2013-02-28 Driller operating seat of driller room of petroleum drilling machine

Country Status (1)

Country Link
CN (1) CN103192745B (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103171461A (en) * 2013-03-01 2013-06-26 宝鸡石油机械有限责任公司 Driller operation seat lifting and rotating device
CN103358940A (en) * 2013-07-24 2013-10-23 苏州市润凯汽车配件制造有限公司 Multifunctional vehicle seat
CN104354619A (en) * 2014-10-23 2015-02-18 山东理工大学 Vibration isolation pedal type man-machine engineering vehicle seat
CN107269260A (en) * 2017-05-11 2017-10-20 宝鸡石油机械有限责任公司 The integrated operation control terminal of the double drillers of oil-well rig being mutually redundant
CN110126685A (en) * 2019-06-06 2019-08-16 黄卫芬 A kind of adjustable automotive seat of seat cushion
CN114271629A (en) * 2021-12-24 2022-04-05 大连华锐重工集团股份有限公司 Electric lifting rotatable linkage control console for heavy mechanical equipment

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3874626A (en) * 1972-07-08 1975-04-01 Bremshey Ag Seat, particularly for automotive vehicles
JPH092112A (en) * 1995-06-16 1997-01-07 Araco Corp Vehicle seat
CN201105672Y (en) * 2007-09-30 2008-08-27 张龙 Electric rotary chassis
CN201595446U (en) * 2009-11-13 2010-10-06 宝鸡石油机械有限责任公司 Quick-release type driller seat
CN102328602A (en) * 2011-07-07 2012-01-25 江苏谷登工程机械装备有限公司 Special seat for horizontal directional drilling machine

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3874626A (en) * 1972-07-08 1975-04-01 Bremshey Ag Seat, particularly for automotive vehicles
JPH092112A (en) * 1995-06-16 1997-01-07 Araco Corp Vehicle seat
CN201105672Y (en) * 2007-09-30 2008-08-27 张龙 Electric rotary chassis
CN201595446U (en) * 2009-11-13 2010-10-06 宝鸡石油机械有限责任公司 Quick-release type driller seat
CN102328602A (en) * 2011-07-07 2012-01-25 江苏谷登工程机械装备有限公司 Special seat for horizontal directional drilling machine

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103171461A (en) * 2013-03-01 2013-06-26 宝鸡石油机械有限责任公司 Driller operation seat lifting and rotating device
CN103358940A (en) * 2013-07-24 2013-10-23 苏州市润凯汽车配件制造有限公司 Multifunctional vehicle seat
CN104354619A (en) * 2014-10-23 2015-02-18 山东理工大学 Vibration isolation pedal type man-machine engineering vehicle seat
CN107269260A (en) * 2017-05-11 2017-10-20 宝鸡石油机械有限责任公司 The integrated operation control terminal of the double drillers of oil-well rig being mutually redundant
CN110126685A (en) * 2019-06-06 2019-08-16 黄卫芬 A kind of adjustable automotive seat of seat cushion
CN114271629A (en) * 2021-12-24 2022-04-05 大连华锐重工集团股份有限公司 Electric lifting rotatable linkage control console for heavy mechanical equipment
CN114271629B (en) * 2021-12-24 2023-08-22 大连华锐重工集团股份有限公司 Electric lifting rotatable linkage console for heavy machinery equipment

Also Published As

Publication number Publication date
CN103192745B (en) 2015-06-24

Similar Documents

Publication Publication Date Title
CN103192745B (en) Driller operating seat of driller room of petroleum drilling machine
CN105437582B (en) A kind of tyre chafer anti-package device
CN206918280U (en) High vacuum push-pull valve
CN106639961B (en) The closed rotating blowout preventer of under balance pressure drilling environmental protection
CN103527076A (en) Top-driving-power faucet
CN203948741U (en) A kind of three-way diverter valve
CN104325387A (en) Ball body grinding machine
CN106927008B (en) A kind of submersible multi-thruster synchronous rotating mechanism
KR20150140745A (en) A continuous drilling fluid circulation unit and arrangement
CN107152422A (en) A kind of residual pressure recovering equipment with Integral rotary valve plate
CN105673552B (en) A kind of nuclear power main pump parking sealing arrangement
CN208813356U (en) Combined sucking disc device
CN103171461B (en) Driller operation seat lifting and rotating device
CN206017827U (en) Closed gas piping push-pull valve clamping/back-off assembly
CN206309307U (en) A kind of rock-core borer hydraulic booster chuck
CN206267785U (en) A kind of double piston-rod is fed double card chuck clamping spindle-type core drill
CN103047501B (en) Gas swivel joint
CN102269310A (en) Rotating joint
CN201218071Y (en) Dynamic correcting polished rod sealer
CN107859754A (en) Plug valve
CN113251162A (en) Gapless gate valve capable of improving plugging capacity
CN209872147U (en) Natural gas pipeline valve
CN210318658U (en) Straight-through stop valve with good sealing performance
CN114030666A (en) Processing method of sauced chicken feet and full-automatic sealing and packaging machine thereof
CN215721008U (en) Tee bend reposition of redundant personnel ball valve

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
TR01 Transfer of patent right

Effective date of registration: 20210112

Address after: 721002 No.2 Dongfeng Road, Jintai District, Baoji City, Shaanxi Province

Patentee after: Baoji Oilfield Machinery Co.,Ltd.

Patentee after: CHINA NATIONAL PETROLEUM Corp.

Patentee after: CNPC national oil and gas drilling equipment Engineering Technology Research Center Co., Ltd

Address before: 721002 No. 2 Dongfeng Road, Shaanxi, Baoji

Patentee before: Baoji Oilfield Machinery Co.,Ltd.

TR01 Transfer of patent right