CN108278086B - A kind of positioning drilling platform for urban track traffic - Google Patents

A kind of positioning drilling platform for urban track traffic Download PDF

Info

Publication number
CN108278086B
CN108278086B CN201810095201.2A CN201810095201A CN108278086B CN 108278086 B CN108278086 B CN 108278086B CN 201810095201 A CN201810095201 A CN 201810095201A CN 108278086 B CN108278086 B CN 108278086B
Authority
CN
China
Prior art keywords
slide unit
vertical
straight line
line slide
track traffic
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.)
Active
Application number
CN201810095201.2A
Other languages
Chinese (zh)
Other versions
CN108278086A (en
Inventor
李�杰
曾力勇
李兵
李菁峰
熊忠胜
吴歆
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.)
CRSC Changsha Railway Traffic Control Technology Co Ltd
Original Assignee
CRSC Changsha Railway Traffic Control Technology 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 CRSC Changsha Railway Traffic Control Technology Co Ltd filed Critical CRSC Changsha Railway Traffic Control Technology Co Ltd
Priority to CN201810095201.2A priority Critical patent/CN108278086B/en
Publication of CN108278086A publication Critical patent/CN108278086A/en
Application granted granted Critical
Publication of CN108278086B publication Critical patent/CN108278086B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B15/00Supports for the drilling machine, e.g. derricks or masts
    • E21B15/003Supports for the drilling machine, e.g. derricks or masts adapted to be moved on their substructure, e.g. with skidding means; adapted to drill a plurality of wells
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B15/00Supports for the drilling machine, e.g. derricks or masts
    • E21B15/04Supports for the drilling machine, e.g. derricks or masts specially adapted for directional drilling, e.g. slant hole rigs
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B21/00Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
    • E21B21/01Arrangements for handling drilling fluids or cuttings outside the borehole, e.g. mud boxes
    • E21B21/015Means engaging the bore entrance, e.g. hoods for collecting dust
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B7/00Special methods or apparatus for drilling
    • E21B7/02Drilling rigs characterised by means for land transport with their own drive, e.g. skid mounting or wheel mounting
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B7/00Special methods or apparatus for drilling
    • E21B7/04Directional drilling

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

A kind of positioning drilling platform for urban track traffic, including straight line slide unit and pedestal, the straight line slide unit is laid in the underface of bore position along boring direction, the bottom of the pedestal is fixed on fine tuning slide unit, the fine tuning slide unit is mounted on straight line slide unit and can move along straight line slide unit, the positioning device that fine tuning slide unit can be located on straight line slide unit any position is additionally provided on the straight line slide unit, one vertical supports vertically laid is installed on one end of the pedestal, two vertical bars to match with the height at the top of position to be drilled are fixed in the vertical supports, the lower part of two vertical bars is provided with the height adjustment mechanism adjusting for adjusting vertical bar height in the position for facilitating operator to adjust, it is connected and is limited by pitch control unit between two vertical bars, the configuration of the present invention is simple, it is easy to operate, it is small to punch error , drilling precision it is high, high-efficient, it can be achieved that high-precision efficiency operation.

Description

A kind of positioning drilling platform for urban track traffic
Technical field
The present invention relates to four electrical domain of urban track traffic, especially a kind of positioning drilling for urban track traffic is flat Platform.
Background technique
In the work progress of urban track traffic, for gantry, air hose, fire-fighting and supplying drainage at the top of the station hall layer of station The fixation in road needs to drill at the top of the station hall layer of station, is then fixed by fixed bracket, and fixed bracket is usually equidistant double Bracket is fixed in hole, it is therefore desirable to bore distance double holes, the drilling construction method that industry generallys use at present is manually to set up scaffold After platform, manpower is climbed to punch position and is punched, in practice of construction, since the height in city rail traffic station room is general It is 3 meters to 9 meters, it is artificial to climb construction risk height, and since pipeline is generally that linear rows are walked, wiring path is long, therefore On the one hand positional punch position is wanted to reduce error when drilling, the ash on the other hand due to the closing of construction environment, when control is punched No matter dirt is also particularly important, and the form of construction work by setting up scaffold to workers ' health or construction safety, is set up to city The height of city's rail traffic station, the time for needing to spend is long, and construction efficiency is low, it is often more important that, scaffold is set up arbitrarily Property is big, not can guarantee that drilling operation is accurate by the way that punch position is positioned manually, and worker can only one, hole hole beat, this Sample is easier to cause cumulative errors beating equidistant diplopore, so that bigger error, therefore this mode neither can guarantee constructor Body and labor safety, and reduce working efficiency, improve construction cost.
Summary of the invention
The present invention provides a kind of structure with problem in view of the above shortcomings of the prior art and is simple and convenient to operate, punches mistake The positioning drilling platform for urban track traffic that difference is small, drilling precision is high, high-efficient, environmentally friendly.
Above-mentioned purpose that the invention is realized by the following technical scheme:
A kind of positioning drilling platform for urban track traffic, including straight line slide unit and pedestal, straight line slide unit edge Boring direction is laid in the underface of bore position, and the bottom of the pedestal is fixed on fine tuning slide unit, the fine tuning slide unit peace It can be moved along straight line slide unit on straight line slide unit, straight line slide unit can be located in for fine tuning slide unit by being additionally provided on the straight line slide unit Positioning device on any position is equipped with the vertical supports vertically laid on one end of the pedestal, described Two vertical bars to match with the height at the top of position to be drilled are fixed in vertical supports, the lower part of two vertical bars is facilitating operation The position that personnel are adjusted is provided with the height adjustment mechanism adjusting for adjusting vertical bar height, passes through spacing control between two vertical bars The side of device connection limit processed, the vertical bar is connected by the other end of steel anchor rod and rock-bolt length regulating device and pedestal It connects, the impact drill fixed frame of fixed impact drill, the impact drill fixed frame and/or spacing is equipped at the top of the every vertical bar Laser calibrator is installed on the middle part of control device, the laser calibrator transmitting terminal downwards and the laser of transmitting terminal transmitting with Vertical bar is parallel, and the vertical supports are fixed with horizon equipment immediately below laser calibrator transmitting terminal, by verifying laser calibration Device emits position of the laser beam on horizon equipment, to guarantee the verticality of impact drill, if finding to impact by horizon equipment The position inaccuracy of brill can also finely tune the verticality of vertical bar, in this way guarantee impact drill position by rock-bolt length regulating device It is accurate, to improve the precision of drilling, in drilling, pass through the height of the adjustable vertical bar of height adjustment mechanism on vertical bar Degree, to pass through the depth of height adjustment mechanism control drilling.
The dust collecting hood for collecting impact drill punching dust, the dust collecting hood are additionally provided on the impact drill fixed frame It is connect by aspiration channel with the suction ventilator being mounted on the base, the air outlet of the suction ventilator is equipped with dust collecting installation, leads to Dust collecting hood is crossed, while punching, dust is collected by suction ventilator, prevents fugitive dust, to reduce working environment Pollution, reduce influence of the environment to worker's body.
The suction ventilator is mounted on the base by damping device, and reduction suction ventilator shakes the influence to punching in this way.
The vertical bar includes upper boom, middle bar and lower beam, and the lower beam is connected with middle bar by height adjustment mechanism, it is described on Bar and middle bar are to be threadedly coupled, and are connected and are limited by pitch control unit between two upper booms between two lower beams, are used Above structure, vertical bar is assembly, so as to adjust length, and convenient transportation and assembling as needed.
The vertical supports are trapezoid support, and the cross tube of the vertical supports is equipped with corresponding with vertical bar size, position Two long holes, the sheer poles of the vertical supports is equipped with the locating slot of positioning vertical bar, and the lower beam is inserted into the long hole And it is positioned by locating slot.
The pitch control unit uses horizontal leading screw fixator, and the two sides movable end of the horizontal leading screw fixator is same Step movement.
The rock-bolt length regulating device uses flower basket bolt, and one end of the flower basket bolt is fixed on the base, another End is connect with steel anchor rod.
The vertical supports between two vertical bars on be additionally provided with determine two vertical bar spacing horizontal ruler, it is described Horizon equipment is mounted on the horizontal ruler.
Using the above structure, the present invention has the advantage that.
1, the pedestal of the present apparatus is mounted on straight line slide unit by finely tuning slide unit, in this way in adjacent holes away from large-scale walking When, mobile by straight line slide unit, small range is located through fine tuning slide unit, reaches once set up in this way, the production of mass operation Purpose;
2, the vertical bar of the present apparatus uses " triangle stability " principle, and entire platform is determined into an adjustable type right angle Triangle body, it is ensured that platform structure complete stability;
3, high-precision right angle is formed using horizontal direction horizon equipment and vertical direction laser beam, passes through the small of hard anchor pole Quickly adjustment, realizes high-precision efficiency operational method.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is straight line slide unit of the present invention, the structural schematic diagram for finely tuning slide unit and pedestal.
Specific embodiment
With reference to the accompanying drawing, a kind of specific reality of positioning drilling platform for urban track traffic is further described Apply mode.
As shown in Figure 1, 2, a kind of positioning drilling platform for urban track traffic, including straight line slide unit 2 and pedestal 1, The straight line slide unit 2 is laid in the underface of bore position along boring direction, and the bottom of the pedestal 1 is fixed on fine tuning slide unit On, the fine tuning slide unit is mounted on straight line slide unit 2 and can move along straight line slide unit, and being additionally provided on the straight line slide unit 2 can will be micro- Slide unit is adjusted to be located in the positioning device on straight line slide unit any position, the positioning device includes adjusting slide unit hold-down support and micro- Adjust slide unit support, when operation, require according to design size, slide after fixed slide unit support quickly slides to target position, by with Laser calibrating equipment cooperation, it is final to finely tune slide unit support, reach precise positioning, an edge is installed on one end of the pedestal 1 The vertical supports 9 that vertical direction is laid are fixed with two in the vertical supports 9 and match with the height at the top of position to be drilled Vertical bar 3, the lower part of two vertical bars 3 are provided with the height adjustment mechanism for adjusting vertical bar height in the position for facilitating operator to adjust 34 are adjusted, and the vertical bar includes upper boom 31, middle bar 32 and lower beam 33, and the lower beam 33 and middle bar 32 pass through height adjustment mechanism 34 Connection, the upper boom 31 and middle bar 32 are to be threadedly coupled, and pass through spacing control between two lower beams 33 between two upper booms 32 The connection of device 10 processed limits, and in this example, the height adjustment mechanism 34 can be screw rod regulating mechanism, the work of screw rod regulating mechanism Moved end is connect by spring with upper boom 31, so that spring can play the role of buffering, in addition, the height tune of screw rod regulating mechanism Section is manually implemented by rotating handle, while saving cost in this way, facilitates operation, after punch position confirmation, the height Regulating device plays upper boom 31 using spring supporting, and rotating handle makes vertical bar that impact drill be driven to rise punching when punching, has punched At rear slow release rotating handle, it also can achieve the purpose of limitation punching depth by spring, lead between two vertical bars 3 The connection limit of pitch control unit 10 is crossed, the pitch control unit 10 uses horizontal leading screw fixator, and the horizontal leading screw is solid The two sides movable end for determining device is to move synchronously, and guarantees the centering adjusted in this way, and the side of the vertical bar 3 passes through 4 He of steel anchor rod Rock-bolt length regulating device 5 is connect with the other end of pedestal 1, and the rock-bolt length regulating device 5 uses flower basket bolt, the flower One end of basket bolt is fixed on the base, and the other end is connect with steel anchor rod, and the top of the every vertical bar 3 is equipped with fixed punch The impact drill fixed frame 35 of brill is hit, the middle part of the pitch control unit 10 is equipped with laser calibrator, the laser calibrator Transmitting terminal downwards and transmitting terminal transmitting laser parallel with vertical bar 36, the vertical supports 9 between two vertical bars on set There is the horizontal ruler for determining two vertical bar spacing, the vertical supports 9 are fixed with immediately below 36 transmitting terminal of laser calibrator Horizon equipment 91, the horizon equipment 91 are mounted on the horizontal ruler.
The dust collecting hood 6 for collecting impact drill punching dust is additionally provided on the impact drill fixed frame 35, the dust is received Collection cover 6 is connect by aspiration channel 7 with the suction ventilator 8 being mounted on the base, and the air outlet of the suction ventilator is equipped with dust collection Device.
The vertical supports 9 are trapezoid support, and the cross tube of the vertical supports 9 is equipped with and vertical bar size, position pair Two long holes answered, the sheer pole of the vertical supports are equipped with the locating slot of positioning vertical bar, and the lower beam is inserted into the long hole It is interior and pass through locating slot position.
Specific embodiment is as follows:
1. surveying axis surely according to design requirement, straight line slide unit length and width is adjusted;
2. according to subway concourse layer height assembling drilling platform, steel anchor rod, impact drill and dust collector;
3. reference laser calibrator, central scale and straight line slide unit tense steel anchor rod;
4. rotating 2 steering wheels simultaneously to top bore position;
5. startup power supply;
6. punching;
7. alternately installing the 2nd group of straight line slide unit;
8. drilling platform is pushed to carry out next group of punching.
The present invention is not limited to above-mentioned preferred forms, anyone can obtain other various shapes under the inspiration of the present invention The product of formula, however, make any variation in its shape or structure, it is all that there is same as the present application or similar technical side Case is within the scope of the present invention.

Claims (8)

1. a kind of positioning drilling platform for urban track traffic, it is characterised in that: including straight line slide unit (2) and pedestal (1), The straight line slide unit (2) is laid in the underface of bore position along boring direction, and the bottom of the pedestal (1) is fixed on fine tuning and slides On platform (11), the fine tuning slide unit (11) is mounted on straight line slide unit (2) and can move along straight line slide unit, the straight line slide unit (2) On be additionally provided with and can will finely tune slide unit and be located in positioning device on straight line slide unit any position, pacify on one end of the pedestal (1) Equipped with a vertical supports vertically laid (9), two and position top to be drilled are fixed on the vertical supports (9) The vertical bar (3) that matches of height, the lower part of two vertical bars (3) is provided with adjusting vertical bar in the position for facilitating operator to adjust The height adjustment mechanism (34) of height, it is described perpendicular by pitch control unit (10) connection limit between two vertical bars (3) The side of bar (3) is fixed on the other end of pedestal (1) by steel anchor rod (4) and rock-bolt length regulating device (5), described in every The impact drill fixed frame (35) of fixed impact drill, the impact drill fixed frame (35) and/or spacing are equipped at the top of vertical bar (3) Be equipped on the middle part of control device (10) laser calibrator (36), laser calibrator (36) transmitting terminal downwards and transmitting terminal The laser of transmitting is parallel with vertical bar, and the vertical supports (9) are fixed with level immediately below laser calibrator (36) transmitting terminal Device (91).
2. the positioning drilling platform according to claim 1 for urban track traffic, it is characterised in that: the impact drill The dust collecting hood (6) for collecting impact drill punching dust is additionally provided on fixed frame (35), the dust collecting hood (6) passes through air draught Pipe (7) is connect with the suction ventilator (8) being mounted on the base, and the air outlet of the suction ventilator is equipped with dust collecting installation.
3. the positioning drilling platform according to claim 2 for urban track traffic, it is characterised in that: the suction ventilator (8) it is mounted on pedestal (1) by damping device.
4. according to claim 1 to the positioning drilling platform for being used for urban track traffic described in one of 3, it is characterised in that: institute Stating vertical bar includes upper boom (31), middle bar (32) and lower beam (33), and the lower beam (33) and middle bar (32) pass through height adjustment mechanism (34) it connects, the upper boom (31) and middle bar (32) are to be threadedly coupled, between two lower beams (33) between two upper booms (32) Pass through pitch control unit (10) connection limit.
5. the positioning drilling platform according to claim 4 for urban track traffic, it is characterised in that: the vertical branch Frame (9) is trapezoid support, and the cross tubes of the vertical supports (9) is equipped with two long hole corresponding with vertical bar size, position, described The sheer pole of vertical supports is equipped with the locating slot of positioning vertical bar, and the lower beam is inserted into the long hole and passes through locating slot Positioning.
6. the positioning drilling platform according to claim 1 for urban track traffic, it is characterised in that: the spacing control Device processed uses horizontal leading screw fixator, and the two sides movable end of the horizontal leading screw fixator is to move synchronously.
7. the positioning drilling platform according to claim 1 for urban track traffic, it is characterised in that: the anchor pole is long It spends regulating device and uses flower basket bolt, one end of the flower basket bolt is fixed on the base, and the other end is connect with steel anchor rod.
8. the positioning drilling platform according to claim 1 for urban track traffic, it is characterised in that: the vertical branch Frame between two vertical bars (3) on be additionally provided with the horizontal ruler for determining two vertical bar (3) spacing, the horizon equipment (91) peace On the horizontal ruler.
CN201810095201.2A 2018-01-31 2018-01-31 A kind of positioning drilling platform for urban track traffic Active CN108278086B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810095201.2A CN108278086B (en) 2018-01-31 2018-01-31 A kind of positioning drilling platform for urban track traffic

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810095201.2A CN108278086B (en) 2018-01-31 2018-01-31 A kind of positioning drilling platform for urban track traffic

Publications (2)

Publication Number Publication Date
CN108278086A CN108278086A (en) 2018-07-13
CN108278086B true CN108278086B (en) 2019-05-03

Family

ID=62807073

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201810095201.2A Active CN108278086B (en) 2018-01-31 2018-01-31 A kind of positioning drilling platform for urban track traffic

Country Status (1)

Country Link
CN (1) CN108278086B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109057731B (en) * 2018-09-06 2019-12-13 中国石油化工股份有限公司 Beam-pumping unit suspension point and operation derrick pulley center and well head centering laser calibrator
CN110485921B (en) * 2019-08-21 2021-06-18 康宏伟 NPR anchor rope construction drilling directional controller

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN200964790Y (en) * 2006-10-24 2007-10-24 赵亮 Hydraulic minisize drilling machine
CN202117571U (en) * 2011-05-27 2012-01-18 中铁十三局集团电务工程有限公司 Movable type tunnel top drilling machine
CN202325233U (en) * 2011-10-25 2012-07-11 西安建筑科技大学 Crawler-type hydraulic anchor rod drill carriage
CN102913121B (en) * 2012-10-22 2015-04-01 石午江 Flexible swing pipe vibrator boring machine
US9488014B2 (en) * 2013-11-25 2016-11-08 Unit Corporation Box-on-box self-stacking substructure for a drill rig
CN204899789U (en) * 2015-08-18 2015-12-23 中铁一局集团电务工程有限公司 Rigid suspension contact net platform of perpendicularly upwards driling
CN105781457B (en) * 2016-04-05 2018-06-19 辽宁工程技术大学 A kind of mining blowdown control dirt drilling equipment
CN105970960A (en) * 2016-06-30 2016-09-28 广东力源液压机械有限公司 Walking pile driver
CN106089044A (en) * 2016-07-12 2016-11-09 宿迁淮海科技服务有限公司 A kind of from mobile four stud location base plate armature boring chassis
CN106089042A (en) * 2016-07-12 2016-11-09 宿迁淮海科技服务有限公司 A kind of from mobile diagonal orientation base plate armature boring chassis
CN205936398U (en) * 2016-08-23 2017-02-08 卢泽生 Public road bridge roof beam construction drilling platform
CN106194022B (en) * 2016-09-26 2018-03-27 辽宁工程技术大学 A kind of Portable drilling device and application method for fully-mechanized mining working passing fault
CN206785312U (en) * 2017-06-17 2017-12-22 中建二局第三建筑工程有限公司 Reinforcing steel implant drilling machine
CN107269227A (en) * 2017-08-11 2017-10-20 楼炜 A kind of architectural engineering multifunctional hole-drilling machine
CN207892537U (en) * 2018-01-31 2018-09-21 通号(长沙)轨道交通控制技术有限公司 A kind of positioning drilling platform for urban track traffic
CN108278129B (en) * 2018-02-07 2020-12-15 博兴战新产业发展有限公司 Mining is with energy-concerving and environment-protective auxiliary assembly

Also Published As

Publication number Publication date
CN108278086A (en) 2018-07-13

Similar Documents

Publication Publication Date Title
CN108278086B (en) A kind of positioning drilling platform for urban track traffic
CN103521807A (en) Liftable laser positioning high-space suspender perforation mounting device and operation method
CN110487258B (en) Prism support device and using method thereof
CN206740090U (en) One kind is applied to linear pattern canal axes positioning measuring device
CN208075758U (en) Degree of gravity vertical forwall surface detection device
CN111719857B (en) Sliding assembly and civil engineering steel structure template assembling equipment
CN207892537U (en) A kind of positioning drilling platform for urban track traffic
CN203587057U (en) Height measuring device
JPH05269731A (en) Apparatus for boring floor surface
CN211772904U (en) Central axis control device for suspension casting construction of linear bridge
KR20110007663U (en) Pointing device using laser beam
CN214886842U (en) Drilling positioner
CN215256024U (en) Adjustable positioner that punches in tunnel
CN111232808A (en) Transverse installation method of prefabricated modular elevator
CN107761527A (en) Road evenness supervising device and its application method
CN209477611U (en) A kind of pipeline welding platform
CN207026541U (en) It is removable just to adjust exhausting duct suspension rod drilling frame
CN206311097U (en) A kind of earth excavation control device
JP2010228308A (en) Boring device of concrete flooring
CN103499716B (en) Low-voltage lighting ammeter box installs orientation tool
CN218937406U (en) Auxiliary bearing device of precise instrument for mine mapping
CN205000207U (en) IV net surveying marker subassemblies of CP
CN210036719U (en) Positioning device for mounting road auxiliary structure
RU219211U1 (en) DEVICE FOR LEVELING THE PLASTER LAYER
CN218822384U (en) Tunnel center line measuring matching device

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant
CP02 Change in the address of a patent holder

Address after: 410000 R&D Building of No. 2199 Yuelu West Avenue (Changsha) Industrial Park, Changsha High-tech Development Zone, Changsha City, Hunan Province

Patentee after: General (Changsha) Rail Traffic Control Technology Co. Ltd.

Address before: 410205 Hunan province Changsha City Lugu high tech Development Zone, Road No. 658 Hunan Lugu harbor 3003-C012.

Patentee before: General (Changsha) Rail Traffic Control Technology Co. Ltd.

CP02 Change in the address of a patent holder