CN105863505A - Self-lubricating water and gas injection method and structure of rotary excavation equipment - Google Patents
Self-lubricating water and gas injection method and structure of rotary excavation equipment Download PDFInfo
- Publication number
- CN105863505A CN105863505A CN201610331726.2A CN201610331726A CN105863505A CN 105863505 A CN105863505 A CN 105863505A CN 201610331726 A CN201610331726 A CN 201610331726A CN 105863505 A CN105863505 A CN 105863505A
- Authority
- CN
- China
- Prior art keywords
- water
- main shaft
- drill bit
- rotatory sealing
- rotating
- 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
Links
Classifications
-
- 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
- E21B7/00—Special methods or apparatus for drilling
-
- 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
- E21B10/00—Drill bits
- E21B10/60—Drill bits characterised by conduits or nozzles for drilling fluids
-
- 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
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
-
- 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
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/16—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor using gaseous fluids
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a self-lubricating water and gas injection method of rotary excavation equipment. The method comprises the steps that central water and gas through holes are formed inside a rotating spindle and a drill rod and a drill bit connected with the rotating spindle, a rotating sealing sleeve is installed at a water/gas injection hole in the rotating spindle, a cavity is reserved between the rotating spindle and the rotating sealing sleeve, the rotating sealing sleeve is externally connected with a water/gas source, when the rotating spindle rotates, the rotating sealing sleeve and the external water/gas source are relatively fixed, and the rotating sealing sleeve and the rotating spindle rotate relatively; the cavity is filled with high-pressure water/gas through the rotating sealing sleeve, then, the high-pressure water/gas enters the central water/gas through holes inside the spindle, the drill rod and the drill bit and finally flows out from the bottom of the drill bit, and the self-lubricating effect on rock drilling of the drill bit is achieved. In the high-speed rotation process of the rotary excavation equipment, high-pressure water/gas is injected in the interior, water/gas flow successfully reaches the bottom of the drill bit and is sprayed out from the bottom of the drill bit, the drill bit in working can be effectively cooled and lubricated in time, rotary excavation can be promoted, and the construction progress can be improved.
Description
Technical field
The present invention relates to churning driven technique for rock field, particularly relate to a kind of rotation and dig standby self-lubricating water filling, inflating method and knot
Structure.
Background technology
Along with the continuous progress and development of Chinese society economy, the Process of Urbanization Construction of China there has also been huge progress, in China
Highway bridge, skyscraper, urban transportation, major port pile foundation construction in rotation dig and standby be increasingly becoming country's weight
The preferred unit of construction in large-engineering.Wherein rotation digs standby is by screw power device and screw sheel boring rod set and drill bit group
Become.In work progress, when drill bit get into underground deeper time earth viscosity increase, without lubrication then can have a strong impact on
The performance of drill bit and construction speed.The internal self-lubricating water filling of high speed rotating event is needed to there is certain difficulty during due to bit operation
Degree, general in prior art use is all that the mode of external water flood is lubricated.
Summary of the invention
It is an object of the invention to provide a kind of rotation and dig standby self-lubricating water filling, inflating method and structure, it is possible to achieve rotation digs
Standby during high-speed rotary digs from internal high pressure water filling, gas injection, make current, air-flow more smoothly, arrive bottom drill bit smoothly
And spray bottom drill bit, water/gas stream with pressure can make the drill bit in work must cool down and lubricate timely and effectively, is conducive to rotation
Dig work more effectively to carry out, improve construction speed.
For achieving the above object, the present invention realizes by the following technical solutions:
A kind of rotation digs standby self-lubricating water filling, inflating method, and the method is to dig the standby main shaft and connected of rotating in rotation
Drilling rod, the inside of drill bit center water flowing/pore is set, rotatory sealing set is installed at the water filling/pore rotated on main shaft,
Rotate and leave cavity between main shaft and rotatory sealing set, outwards connect water/gas source by rotatory sealing set, when rotating main axis
Time, rotatory sealing set is relatively fixed with external water/gas source, relatively rotates with rotating main shaft;High pressure water/gas is close through rotating
Big envelope fills cavity, subsequently into main shaft and drilling rod, the center water flowing/pore of drill bit internal, finally flows out bottom drill bit,
The effect of self-lubricating is played for drill bit rock drilling.
The structure that a kind of rotation digs standby self-lubricating water filling, inflating method is used, including drill bit, drilling rod, rotation main shaft,
Screw power device, also includes rotatory sealing set, water filling/air pipe, is rotating main shaft, drilling rod, being internally provided with of drill bit
Center water flowing/pore, is provided with water filling/pore on rotation main shaft and connects with center water flowing/pore, is provided with note rotating on main shaft
Being socketed rotatory sealing set on the position in water/gas hole, rotate and leave cavity between main shaft and rotatory sealing set, the both sides of cavity are passed through
O RunddichtringO seals, and the both sides of rotatory sealing set are positioned by little cadmium set and copper nut, and little cadmium set is stuck in the axle rotating main shaft
On shoulder, copper nut is connected by screw thread and pin are fixing with rotation main shaft, and rotatory sealing set is fixing with water filling/air pipe to be connected.
Described water filling/air pipe includes stainless steel tube, upper sebific duct, lower sebific duct, pipe joint, and one end of stainless steel tube is close with rotation
Big envelope is fixing to be connected, and the other end is fixing with lower sebific duct to be connected, and stainless steel tube is simultaneously solid with the link B on rotary power unit
Fixed connection, is connected by pipe joint between upper and lower sebific duct, on the link A that pipe joint is fixed on rotary power unit.
Compared with prior art, the invention has the beneficial effects as follows:
1) water filling/air pipe is fixing with the rotatory sealing set rotated on main shaft is connected, and studding with sealing ring in rotatory sealing set can have
Effect antiseep, good sealing effect;
2) it is provided with center water flowing/pore in rotating main shaft, drilling rod and drill bit, high pressure water/gas can be led to, make water/gas stream smooth and easy
Be flowed into drill bit and bottom drill bit spray, water/gas stream with pressure can make the drill bit in work must cool down and moisten timely and effectively
Cunning, beneficially rotation are dug work and are more effectively carried out, and improve construction speed.
Accompanying drawing explanation
Fig. 1 be with self-lubricating water filling, the rotation of gas injection structure dig standby external structure schematic diagram.
Fig. 2 is the schematic diagram after Fig. 1 removes screw power device.
Fig. 3 is the connection diagram rotating main shaft with rotatory sealing set.
In figure: 1. 5. times sebific ducts 6. of sebific duct 4. pipe joint on screw power device 2. auger stem device 3.
The stainless steel tube 7. rotatory sealing set 8. rotation little cadmium of main shaft 9. connecting shaft 10. overlaps 11. copper nuts 12.
Pin 13. drill bit 14.O RunddichtringO 15. cavity 16. water fillings/pore 17. link B 18. link A
19. water flowing/pore.
Detailed description of the invention
Below in conjunction with specific embodiment, embodiments of the present invention are further illustrated:
As shown in Figure 1-Figure 3, a kind of rotation digs standby self-lubricating water filling, inflating method, and the method is to dig standby rotation in rotation
Main shaft 8 and connected drilling rod 2, the inside of drill bit 13 arrange center water flowing/pore 19, are rotating on main shaft 8
Rotatory sealing set 7 is installed at water filling/pore 16, rotates and leave cavity 15, by rotation between main shaft 8 and rotatory sealing set 7
Turning sealing shroud 7 and outwards connect water/gas source, when rotating main shaft 8 and rotating, rotatory sealing set 7 is relative with external water/gas source
Fixing, relatively rotate with rotating main shaft 8;High pressure water/gas fills cavity 15, subsequently into main shaft 8 through rotatory sealing set 7
And the center water flowing/pore 10 within drilling rod 2, drill bit 13, finally flow out bottom drill bit 13, play certainly for drill bit rock drilling
The effect of lubrication.
The structure that a kind of rotation digs standby self-lubricating water filling, inflating method is used, including drill bit 13, drilling rod 2, rotate main
Axle 8, screw power device 1, also include rotatory sealing set 7, water filling/air pipe, is rotating main shaft 8, drilling rod 2, drill bit
The center that the is internally provided with water flowing/pore 19 of 1, is provided with water filling/pore 16 and center water flowing/pore 19 rotating on main shaft 8
Connection, is provided with on the position of water filling/pore 16 socket rotatory sealing set 7 rotating, rotates main shaft 8 and rotate on main shaft 8
Leaving cavity 15 between sealing shroud 7, the both sides of cavity 15 are sealed by O RunddichtringO 14, the both sides of rotatory sealing set 7
Being positioned by little cadmium set 10 and copper nut 11, little cadmium set 10 is stuck on the shaft shoulder rotating main shaft 8, and copper nut 11 passes through spiral shell
Stricture of vagina and pin are fixed with rotation main shaft 8 and are connected, and rotatory sealing set 7 is fixing with water filling/air pipe to be connected.
Described water filling/air pipe includes stainless steel tube 6, upper sebific duct 3, lower sebific duct 5, pipe joint 4, one end of stainless steel tube 6
Fixing with rotatory sealing set 7 being connected, the other end is fixed with lower sebific duct 5 and is connected, the while of stainless steel tube 6 and rotary power unit
Link B17 on 1 is fixing to be connected, and is connected by pipe joint 4 between upper and lower sebific duct, and pipe joint 4 is fixed on rotary power
On link A18 on device 1.
Rotation digs standby primary structure and includes drill bit 13, drilling rod 2, rotates main shaft 8, screw power device 1, spiral power
Device 1 is in transmission connection with rotating main shaft 8, rotates main shaft 8 and passes through connecting shaft 9 jointed rod 2, is rotating main shaft 8 and is connecting
It is provided with pin-and-hole on the relevant position of spindle 9, connects by pin is fixing therebetween.Connecting shaft 9 is bolted drilling rod
2, the bottom of drilling rod 2 is provided with drill bit 13.At drill bit 13, drilling rod 2, rotate main shaft 8, the axle centre bit of connecting shaft 9
Installing and be equipped with through hole and be interconnected, the bottom sides at drill bit 13 is provided with hole for water spraying and connects with the through hole at axle center.Axle center
Through hole for water flowing, ventilation, the hole for water spraying bottom drill bit 13 is for moistening to the earth rock water filling of drill bit and bit exterior
Sliding.
Link A18 and link B17 is arranged on the outside of screw power device 1, for connecting and fix other some
Component and auxiliary equipment.It is fixed on link A18, rustless steel for connecting the pipe joint 4 of upper sebific duct 3 and lower sebific duct 5
Pipe 6 is fixed on link B17, and stainless steel tube 6 is provided with 90 degree of bent angles, and its water side is fixing with rotatory sealing set 7 even
Connect.
Rotatory sealing set 7 is socketed on rotation main shaft 8, rotates the reduced diameter of this position of main shaft 8 so that rotatory sealing
Set 7 and rotate and form a toroidal cavity 15 between main shaft 8, be provided with at this simultaneously the water flowing at water injection hole 16 and axle center/
Pore 19 is connected, and additionally the both sides at cavity 15 are inlayed O RunddichtringO 14 and sealed.
Rotatory sealing set 7 is positioned by little cadmium set 10 and the copper nut 11 of both sides, and little cadmium overlaps the rotation main shaft 8 of 10 upper ends
Being provided with the shaft shoulder that diameter is thicker, little cadmium set 10 is stuck at the shaft shoulder, overlaps in rotatory sealing and sets on the rotation main shaft 8 of 7 lower ends
There are screw thread and pin-and-hole, copper nut 11 to be screwed in the lower end of rotatory sealing set 7, fixed by pin 12 after locking, be possible to prevent
Between rotatory sealing set 7 and rotation main shaft 8 during high-speed rotation, produce and loosen.
When equipment starts, rotate main shaft 8 and rotate in the inner high speed of rotatory sealing set 7, rotatory sealing set 7 and water filling/trachea
Road is relatively fixed.Upper sebific duct 3 connects water under high pressure/source of the gas, by stainless steel tube 6 to the cavity 15 within rotatory sealing set 7
Note water/gas, after cavity 15 fills, water/gas can flow to drill bit 13 by the axle center water flowing/pore 19 of equipment, and finally from
Hole for water spraying bottom drill bit 13 flows out to the rotation of outside and digs working area, plays the effect of drill bit self-lubricating.When drilling ground
It is passed through water under high pressure and ensures lubrication, reduce dust, improve bit performance;Drilling under water time be passed through pressure-air, can allow mud
Quickly discharge, improve efficiency.
Claims (3)
1. a rotation digs standby self-lubricating water filling, inflating method, it is characterised in that the method is to dig standby rotation in rotation
The inside of main shaft and connected drilling rod, drill bit arranges center water flowing/pore, at the water filling/pore rotated on main shaft
Rotatory sealing set is installed, rotates and leave cavity between main shaft and rotatory sealing set, outwards connect water/gas source by rotatory sealing set,
When rotating main axis, rotatory sealing set is relatively fixed with external water/gas source, relatively rotates with rotating main shaft;Water under high pressure
/ gas fills cavity through rotatory sealing set, subsequently into main shaft and drilling rod, the center water flowing/pore of drill bit internal, finally from
Flow out bottom drill bit, play the effect of self-lubricating for drill bit rock drilling.
The structure that a kind of rotation the most as claimed in claim 1 digs standby self-lubricating water filling, inflating method is used, including
Drill bit, drilling rod, rotation main shaft, screw power device, it is characterised in that also include rotatory sealing set, water filling/air pipe,
Rotating main shaft, drilling rod, the center that the is internally provided with water flowing/pore of drill bit, rotate be provided with on main shaft water filling/pore with in
Heart water flowing/pore connection, is provided with on the position of water filling/pore socket rotatory sealing set rotating, rotates main shaft and rotation on main shaft
Turning and leave cavity between sealing shroud, the both sides of cavity are sealed by O RunddichtringO, and the both sides of rotatory sealing set are by little cadmium set
Positioning with copper nut, little cadmium set is stuck on the shaft shoulder rotating main shaft, and copper nut is connected by screw thread and pin are fixing with rotation main shaft,
Rotatory sealing set is fixing with water filling/air pipe to be connected.
A kind of rotation the most according to claim 2 digs standby self-lubricating water filling, gas injection structure, it is characterised in that institute
Stating water filling/air pipe and include stainless steel tube, upper sebific duct, lower sebific duct, pipe joint, one end of stainless steel tube is solid with rotatory sealing set
Fixed connection, the other end is fixing with lower sebific duct to be connected, and stainless steel tube is simultaneously fixing with the link B on rotary power unit to be connected,
Connected by pipe joint, on the link A that pipe joint is fixed on rotary power unit between sebific duct up and down.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201610331726.2A CN105863505B (en) | 2016-05-18 | 2016-05-18 | A kind of self-lubricating water filling, inflating method and the structure of rotary digging equipment |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201610331726.2A CN105863505B (en) | 2016-05-18 | 2016-05-18 | A kind of self-lubricating water filling, inflating method and the structure of rotary digging equipment |
Publications (2)
Publication Number | Publication Date |
---|---|
CN105863505A true CN105863505A (en) | 2016-08-17 |
CN105863505B CN105863505B (en) | 2018-06-22 |
Family
ID=56634290
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201610331726.2A Active CN105863505B (en) | 2016-05-18 | 2016-05-18 | A kind of self-lubricating water filling, inflating method and the structure of rotary digging equipment |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN105863505B (en) |
Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB401490A (en) * | 1931-11-07 | 1933-11-16 | James Clephane Fortune | Improvements in hydraulic feed for rotary drilling |
CN201826786U (en) * | 2010-09-21 | 2011-05-11 | 重庆探矿机械厂 | High-pressure rotary spraying faucet for drill rod of drilling machine |
CN201848574U (en) * | 2010-10-21 | 2011-06-01 | 成都市西菱汽车配件有限责任公司 | Axial deep hole drilling system |
CN102373883A (en) * | 2011-10-27 | 2012-03-14 | 英联鑫博(天津)机械制造有限公司 | Diving rock inserting drill rig |
CN202882782U (en) * | 2012-07-26 | 2013-04-17 | 田召 | Connector of air supply and water supply of drill rod |
CN202985801U (en) * | 2012-12-17 | 2013-06-12 | 天津市泽华工艺品有限公司 | Rock drill with high-pressure cooling water seal joint |
CN103982135A (en) * | 2014-04-30 | 2014-08-13 | 高杰 | Hole bottom water injection variable-pick multifunctional rock piercing drill of rotary digging pile machine |
CN204042263U (en) * | 2014-09-18 | 2014-12-24 | 平顶山市安泰华矿用安全设备制造有限公司 | A kind of to the connecting head of drilling rod water supply high service device |
CN104295248A (en) * | 2014-09-18 | 2015-01-21 | 平顶山市安泰华矿用安全设备制造有限公司 | Drill pipe water supply device |
CN104499937A (en) * | 2014-12-10 | 2015-04-08 | 胡晓琴 | Rock-penetrating water-filling cylindrical drill of rotary digging pile machine |
CN105089522A (en) * | 2015-09-15 | 2015-11-25 | 连云港黄海机械股份有限公司 | Drill pipe lifting liquid injection device for core drill |
CN105569564A (en) * | 2016-03-02 | 2016-05-11 | 李兴涛 | Rotary excavating pile machine high-pressure water injection rock embedding drill |
-
2016
- 2016-05-18 CN CN201610331726.2A patent/CN105863505B/en active Active
Patent Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB401490A (en) * | 1931-11-07 | 1933-11-16 | James Clephane Fortune | Improvements in hydraulic feed for rotary drilling |
CN201826786U (en) * | 2010-09-21 | 2011-05-11 | 重庆探矿机械厂 | High-pressure rotary spraying faucet for drill rod of drilling machine |
CN201848574U (en) * | 2010-10-21 | 2011-06-01 | 成都市西菱汽车配件有限责任公司 | Axial deep hole drilling system |
CN102373883A (en) * | 2011-10-27 | 2012-03-14 | 英联鑫博(天津)机械制造有限公司 | Diving rock inserting drill rig |
CN202882782U (en) * | 2012-07-26 | 2013-04-17 | 田召 | Connector of air supply and water supply of drill rod |
CN202985801U (en) * | 2012-12-17 | 2013-06-12 | 天津市泽华工艺品有限公司 | Rock drill with high-pressure cooling water seal joint |
CN103982135A (en) * | 2014-04-30 | 2014-08-13 | 高杰 | Hole bottom water injection variable-pick multifunctional rock piercing drill of rotary digging pile machine |
CN204042263U (en) * | 2014-09-18 | 2014-12-24 | 平顶山市安泰华矿用安全设备制造有限公司 | A kind of to the connecting head of drilling rod water supply high service device |
CN104295248A (en) * | 2014-09-18 | 2015-01-21 | 平顶山市安泰华矿用安全设备制造有限公司 | Drill pipe water supply device |
CN104499937A (en) * | 2014-12-10 | 2015-04-08 | 胡晓琴 | Rock-penetrating water-filling cylindrical drill of rotary digging pile machine |
CN105089522A (en) * | 2015-09-15 | 2015-11-25 | 连云港黄海机械股份有限公司 | Drill pipe lifting liquid injection device for core drill |
CN105569564A (en) * | 2016-03-02 | 2016-05-11 | 李兴涛 | Rotary excavating pile machine high-pressure water injection rock embedding drill |
Also Published As
Publication number | Publication date |
---|---|
CN105863505B (en) | 2018-06-22 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN105781419B (en) | For broken ground drilling center deslagging injection type suction drilling tool and its application method | |
CN103643913B (en) | Ice sheet air turbine reverse circulation continuous coring downhole power drilling tool | |
CN104832082B (en) | Pneumatic DTH hammer reverse circulation slagging construction process for rotary drilling rig | |
CN205532295U (en) | Be used for soft stratum drilling center to arrange sediment injection type suction drilling tool | |
CN104033106A (en) | Radial sidetrack drilling rotating self-propelled porous jet flow drill bit | |
CN204691658U (en) | rotary drilling rig down-hole hammer construction special working device | |
CN103216201B (en) | The packing of mining air water slag and separator | |
CN111441723A (en) | Reverse circulation pipe following drilling construction device for large-diameter down-the-hole hammer | |
CN101769271B (en) | Deep-well oil-extraction external flow-channel direct and reverse circulation freely-throwing jet injector oil production method and device | |
CN205805469U (en) | A kind of wire line coring screw shaft formula coring with local inverse circulation drilling tool | |
CN106499351A (en) | A kind of novel pneumatic hand-held jumbolter water filling drill rod connector | |
CN206338031U (en) | A kind of underground self-advancing type high-pressure abrasive material gas jet drilling prosthetic device | |
CN105735928B (en) | Screw shaft formula local reverse-circulation core bit | |
CN209244540U (en) | A kind of air down-hole hammer local reverse-circulation equipment | |
CN104727744B (en) | A kind of rotary drilling rig down-hole hammer Special working device | |
CN209308634U (en) | A kind of bionic micropore diameter underground development machine drilling reamer structure | |
CN205778517U (en) | A kind of rotation digs standby self-lubricating water filling, gas injection structure | |
CN203891809U (en) | Gas faucet for drilling rig and deep-well drilling rig | |
CN206769819U (en) | Broken screw thread deslagging bottom plate efficient drilling drill bit device in a kind of outer brill | |
CN206785305U (en) | A kind of hollow hammer hole reacting cycle continuous sampling rig | |
CN105863505A (en) | Self-lubricating water and gas injection method and structure of rotary excavation equipment | |
CN207960488U (en) | A kind of mixing pile drilling machine containing built-in pipeline | |
CN201344022Y (en) | Direct-and-reverse-circulation integrated hydraulic jet oil production system | |
CN207033375U (en) | A kind of coal mine gas extraction borehole binary channels reverse circulation aqueous vapor pigtail | |
CN206280001U (en) | A kind of low side perseverance anti-oblique drilling tool of jet |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant | ||
CP01 | Change in the name or title of a patent holder | ||
CP01 | Change in the name or title of a patent holder |
Address after: Double tower village 114000 Anshan city of Liaoning Province Qianshan Ningyuan town Patentee after: Anshan Zizhu high tech equipment manufacturing Co., Ltd Address before: Double tower village 114000 Anshan city of Liaoning Province Qianshan Ningyuan town Patentee before: ANSHAN ZIZHU ENGINEERING EQUIPMENT MANUFACTURING Co.,Ltd. |