CN204266918U - A kind of double card dish replaces the continuous drilling type rock-core borer of bar - Google Patents
A kind of double card dish replaces the continuous drilling type rock-core borer of bar Download PDFInfo
- Publication number
- CN204266918U CN204266918U CN201420751077.8U CN201420751077U CN204266918U CN 204266918 U CN204266918 U CN 204266918U CN 201420751077 U CN201420751077 U CN 201420751077U CN 204266918 U CN204266918 U CN 204266918U
- Authority
- CN
- China
- Prior art keywords
- torsion pass
- rock
- oild chuck
- core borer
- pass formula
- 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.)
- Expired - Fee Related
Links
Abstract
A kind of double card dish replaces the continuous drilling type rock-core borer of bar, comprise base and rock-core borer, rock-core borer comprises Rack Body and is arranged on transfer case assembly, hoist engine assembly, transmission assembly, hydraulic system, clutch system, power assembly and the double card dish automatic pouring bar drilling mechanism on Rack Body, described double card dish automatic pouring bar drilling mechanism comprises revolution body, and the vertical shaft rock-core borer vertical shaft above and below revolution body is all provided with torsion pass formula oild chuck.Utility model utilizes the large curved tooth gear be arranged on transfer case little curved tooth gears meshing in revolution body housing, and vertical torsion pass is changed in the torsion pass of level; Utilize formula of the turning round oild chuck being arranged on revolution body upper and lower, the batch (-type) overcoming original rock-core borer short stroke creeps into, by the alternately blessing automatic pouring bar of formula of the turning round oild chuck of upper and lower, while guarantee decompression or pressurization drilling effect, improve the drilling efficiency of rock-core borer and the ability of rig accident settlement.
Description
Technical field
The utility model relates to a kind of geological prospecting equipment, and particularly a kind of double card dish replaces the continuous drilling type rock-core borer of bar.
Background technology
In the geological prospecting equipment industry of China, the development of spindle-type core drill, existing about half a century, to today, is still the army of absolutely main force of exploration market.This grows up for several years, all-hydraulic power head formula rock-core borer, has progressively also occupied part exploration market share.And in a feast for the eyes multi-form rock core exploration equipment market, substantially be exactly also the type of two large classes: first kind type, spindle-type core drill, stable performance, simple to operate, shortcoming is that to creep into stroke distances little, and after creeping into a stroke distances, must return stroke distances creep into again, this operation of drilling back and forth having carried out prospecting by drilling successively, i.e. batch (-type) drilling process, affect the efficiency of exploring and creeping into, be also that everybody expects the problem that needs solve always for many years always; So, the Equations of The Second Kind type grown up in recent years, all-hydraulic power head formula rock-core borer, its sharpest edges be that to creep into stroke long, the i.e. unit head backhaul distance of creeping into, can meet the length of a rope coring drill pipe, creep into for stroke relative to spindle-type core drill, stroke increases about 2-3 times, single from this point, substantially increase the drilling efficiency of rig, but its maximum inferior position is: 1. manufacturing cost is higher, and price is relatively costly.Its price is same size, configure close to spindle-type core drill a lot of doubly, the especially price of import all-hydraulic power head formula rock-core borer, expensive surprising especially.The price of this type, most domestic Drilling Crew is difficult to bear.2. power loss is large, oil consumption is large.The spindle-type core drill of same size drilling ability and all-hydraulic power head formula rock-core borer are made comparisons, the torsion pass of spindle-type core drill, that diesel engine directly drives gearbox deceleration by clutch, transfer case slows down and gyrator slows down, the load that rig overcomes is passed to through multi-stage speed-reducing, whole system is gear drive, relative power loss is less, and system slowdown is than large, and terminal torque is large.And all-hydraulic power head formula rock-core borer is transferring mechanical energy to hydraulic energy, in process that hydraulic energy transfers mechanical energy to, and energy loss is large, unit head slows down smaller, its aerodynamic power that need join is that the twice of the aerodynamic power that spindle-type core drill is joined is many, so just can reach to creep into torque parameter needed for same size.3. under the hoist engine of all-hydraulic power head formula rock-core borer, rope speed is slow, and hydraulically powered hoist engine, when drill down operator, movement of falling object ability when boring under not possessing drilling tool, relative running speed is slower.So we are badly in need of one and can improve drilling efficiency, reduce manufacturing cost and use cost now, and be applicable to engineer geological prospecting, cbm development, gas drainage under suction, the ventilation of tunnel, mine, oil exploitation, hydrological well creep into the geological prospecting equipment with heavy-calibre foundation pile engineering construction etc.
Summary of the invention
The technical problems to be solved in the utility model is for the deficiencies in the prior art, and proposing one can improve drilling efficiency, and the double card dish reducing manufacturing cost and use cost replaces the continuous drilling type rock-core borer of bar.
The technical problems to be solved in the utility model is achieved through the following technical solutions, a kind of double card dish replaces the continuous drilling type rock-core borer of bar, comprise base and be arranged on the rock-core borer on base, be characterized in: described rock-core borer comprises Rack Body and is arranged on the transfer case assembly on Rack Body, hoist engine assembly, transmission assembly, hydraulic system, clutch system, power assembly and double card dish automatic pouring bar drilling mechanism, described double card dish automatic pouring bar drilling mechanism comprises the revolution body be sleeved on vertical shaft rock-core borer vertical shaft, revolution body is provided with the housing docked with vertical shaft rock-core borer transfer case body, output shaft in described transfer case body is provided with little curved tooth gear, the large curved tooth gear of the little curved tooth gears meshing with transfer case is installed in revolution body housing, large curved tooth gear set is on the vertical shaft of vertical shaft rock-core borer, vertical shaft rock-core borer vertical shaft above and below revolution body is all provided with torsion pass formula oild chuck, torsion pass formula oild chuck above described revolution body is set to initiatively torsion pass formula oild chuck, torsion pass formula oild chuck below revolution body is set to driven torsion pass formula oild chuck, described torsion pass formula oild chuck comprises the slip spider be sleeved on vertical shaft rock-core borer vertical shaft, the slip assemblies of holding drill pipe is provided with on the top of slip spider, the chuck body of push card watt radial displacement is set with outside slip assemblies, the contact surface of described chuck body and slips is set to inclined-plane wide at the top and narrow at the bottom, the piston body driving chuck body to move up and down is set with outside chuck body, between piston body and chuck body, thrust bearings is installed, cylinder body is set with outside the piston body of torsion pass formula oild chuck, described piston body outer wall is provided with a circle boss, cylinder body inwall is provided with the spacing edge coordinating with piston body boss and promote piston body and move up and down, the beam seat body be fixedly connected with cylinder body is set with in slip spider bottom, angle bearing group is provided with between the middle part and slip spider of beam seat body, upper sealing device is provided with between beam seat body and slip spider above angle bearing group, lower sealing device is provided with between the below beam seat body and slip spider of angle bearing group, the below slip spider of lower sealing device is set with the locking nut coordinated with beam seat body, between the cylinder body of described active torsion pass formula oild chuck and revolution body, circumference is evenly distributed with the upper cylinder of some vertical settings, the cylinder body circumference of active torsion pass formula oild chuck is distributed with and upper cylinder upper cylinder installing hole one to one, between the beam seat body of described driven torsion pass formula oild chuck and revolution body, circumference is evenly distributed with the lower oil cylinder of some vertical settings, lower oil cylinder and upper cylinder one_to_one corresponding are arranged, and on the beam seat body of driven torsion pass formula oild chuck, circumference is distributed with and plays oil cylinder installing hole one to one with lower oil cylinder, between the beam seat body of described active torsion pass formula oild chuck and revolution body, circumference is evenly distributed with the upper guide peg of some vertical settings, on the beam seat body of active torsion pass formula oild chuck, circumference is distributed with and goes up guide peg installing hole one to one with upper guide peg, between the cylinder body of described driven torsion pass formula oild chuck and revolution body, circumference is evenly distributed with the lower guide peg of some vertical settings, lower guide peg and upper guide peg one_to_one corresponding are arranged, and the cylinder body circumference of driven torsion pass formula oild chuck is distributed with and descends guide peg installing hole one to one with lower guide peg.
The technical problems to be solved in the utility model can also be come to realize further by the following technical programs, is provided with safe locknut at the slip spider of active torsion pass formula oild chuck and the connection of thread of vertical shaft rock-core borer vertical shaft.
The technical problems to be solved in the utility model can also be come to realize further by the following technical programs, and the chuck body of described torsion pass formula oild chuck is provided with the oil-filling mechanism I of lubricating thrust bearing group.
The technical problems to be solved in the utility model can also be come to realize further by the following technical programs, and the beam seat body of described torsion pass formula oild chuck is provided with the oil-filling mechanism II of Lubrication Angle bearing group.
The technical problems to be solved in the utility model can also be come to realize further by the following technical programs, and the slip assemblies of described torsion pass formula oild chuck is the slips that 6 circumferences are evenly distributed on slip spider.
Compared with prior art, the utility model utilizes the large curved tooth gear be arranged on transfer case little curved tooth gears meshing in revolution body housing, and vertical torsion pass is changed in the torsion pass of level; Utilize formula of the turning round oild chuck being arranged on revolution body upper and lower, the batch (-type) overcoming original rock-core borer short stroke creeps into, by the alternately blessing automatic pouring bar of formula of the turning round oild chuck of upper and lower, while guarantee decompression or pressurization drilling effect, improve the drilling efficiency of rock-core borer and the ability of rig accident settlement.The utility model stable performance, reliable, easy to operate, and cheap, overcome the short slab that spindle-type core drill batch (-type) creeps into, for huge contribution has been made in the progress of geology rock core exploration equipment technology.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of double card dish automatic pouring bar drilling mechanism;
Fig. 3 is the left TV structure schematic diagram of Fig. 2;
Fig. 4 is the structural representation of initiatively torsion pass formula oild chuck;
Fig. 5 is that the A-A of Fig. 4 is to structural representation;
Fig. 6 is the structural representation of driven torsion pass formula oild chuck;
Fig. 7 is that the B-B of Fig. 6 is to structural representation.
Detailed description of the invention
A kind of double card dish replaces the continuous drilling type rock-core borer of bar, the rock-core borer comprising base 1 and be arranged on base 1, the transfer case assembly 2 that described rock-core borer comprises Rack Body 9 and is arranged on Rack Body 9, hoist engine assembly 5, transmission assembly 6, hydraulic system 4, clutch system 7, power assembly 8 and double card dish automatic pouring bar drilling mechanism 3, described double card dish automatic pouring bar drilling mechanism 3 comprises the revolution body 12 be sleeved on vertical shaft rock-core borer vertical shaft, revolution body 12 is provided with the housing 16 docked with vertical shaft rock-core borer transfer case body, output shaft in described transfer case body is provided with little curved tooth gear 17, the large curved tooth gear 18 of the little curved tooth gears meshing with transfer case is installed in revolution body housing, large curved tooth gear set is on the vertical shaft 27 of vertical shaft rock-core borer, vertical shaft rock-core borer vertical shaft above and below revolution body 12 is all provided with torsion pass formula oild chuck, torsion pass formula oild chuck above described revolution body is set to initiatively torsion pass formula oild chuck 10, torsion pass formula oild chuck below revolution body is set to driven torsion pass formula oild chuck 14, described torsion pass formula oild chuck comprises the slip spider 20 be sleeved on vertical shaft rock-core borer vertical shaft, the slip assemblies 34 of holding drill pipe is provided with on the top of slip spider 20, the chuck body 22 of push card watt radial displacement is set with outside slip assemblies 34, described chuck body 22 is set to inclined-plane wide at the top and narrow at the bottom with the contact surface of slips, the piston body 24 driving chuck body to move up and down is set with outside chuck body, thrust bearings 23 is installed between piston body 24 and chuck body, cylinder body is set with outside the piston body of torsion pass formula oild chuck, described piston body outer wall is provided with a circle boss, cylinder body inwall is provided with the spacing edge coordinating with piston body boss and promote piston body and move up and down, the beam seat body be fixedly connected with cylinder body is set with in slip spider bottom, angle bearing group 31 is provided with between the middle part and slip spider of beam seat body, upper sealing device 33 is provided with between beam seat body and slip spider above angle bearing group 31, lower sealing device 30 is provided with between the below beam seat body and slip spider of angle bearing group, the below slip spider of lower sealing device is set with the locking nut 29 coordinated with beam seat body, between the cylinder body 25 of described active torsion pass formula oild chuck and revolution body, circumference is evenly distributed with the upper cylinder 11 of some vertical settings, the cylinder body circumference of active torsion pass formula oild chuck is distributed with and upper cylinder 11 upper cylinder installing hole 35 one to one, between the beam seat body of described driven torsion pass formula oild chuck and revolution body, circumference is evenly distributed with the lower oil cylinder 13 of some vertical settings, lower oil cylinder 13 is arranged with upper cylinder 11 one_to_one corresponding, and on the beam seat body 38 of driven torsion pass formula oild chuck, circumference is distributed with and plays oil cylinder installing hole 39 one to one with lower oil cylinder, between the beam seat body 26 of described active torsion pass formula oild chuck and revolution body, circumference is evenly distributed with the upper guide peg 15 of some vertical settings, on the beam seat body of active torsion pass formula oild chuck, circumference is distributed with and goes up guide peg installing hole 36 one to one with upper guide peg, between the cylinder body 37 of described driven torsion pass formula oild chuck and revolution body, circumference is evenly distributed with the lower guide peg 19 of some vertical settings, lower guide peg 19 is arranged with upper guide peg 15 one_to_one corresponding, the cylinder body circumference of driven torsion pass formula oild chuck is distributed with and descends guide peg installing hole 40 one to one with lower guide peg.Described upper guide peg installing hole and lower guide peg installing hole are evenly distributed with 4; Upper cylinder installing hole and lower oil cylinder installing hole are symmetrically installed with 2 respectively.The maximum outside diameter of described driven torsion pass formula oild chuck beam seat body is greater than the maximum outside diameter of driven torsion pass formula oild chuck cylinder body; The maximum outside diameter of described active torsion pass formula oild chuck beam seat body is less than the maximum outside diameter of initiatively torsion pass formula oild chuck cylinder body.Described rig vertical shaft must be greater than the height of lower gripper to the distance on ground; The bottom of described lower guide peg is to the distance on ground, and when must meet and conveniently unload drilling tool, the relatively spacious of operating space distance maximizes.
Described rock-core borer is by changing into vertical torsion pass by the torsion pass of level in revolution body; the rotation of described upper and lower two place's torsion pass formula oild chucks is lasting non-stop-machine; it moves up and down and replaces; when active torsion pass formula oild chuck add hold rod boring time; driven torsion pass formula oild chuck will unclamp drilling rod slippage return; in like manner; when driven torsion pass formula oild chuck add hold rod boring time; initiatively torsion pass formula oild chuck will unclamp drilling rod slippage return, not shut down down process that bar drill enters so successively continuously and carry out the work that exploration creeps into.
Be provided with safe locknut 28 at the slip spider of active torsion pass formula oild chuck and the connection of thread of vertical shaft rock-core borer vertical shaft, and initiatively the slip spider of torsion pass formula oild chuck should be " left side " and revolves with being threaded of vertical shaft.The chuck body of described torsion pass formula oild chuck is provided with the oil-filling mechanism I 21 of lubricating thrust bearing group; The beam seat body of described torsion pass formula oild chuck is provided with the oil-filling mechanism II 32 of Lubrication Angle bearing group, like this, when slips blessing work, when the bearing safety coefficient of bearing can be met, the force value of adjustment, locking overflow valve, to ensure the power that accommodates reliably and stable bearing life; When slips is in the state of blessing, thrust bearing should be made to be in non-bearing state; Like this, to ensure that bearing has good lubrication environment.The slip assemblies of described torsion pass formula oild chuck is the slips that 6 circumferences are evenly distributed on slip spider.Slips in described torsion pass formula oild chuck relies on slip spider carrying, and chuck body moves vertically, and the slope driving slips that chuck body is contacted with slips does radial displacement, realizes the object accommodating or unclamp drilling rod.This is better than traditional disk spring type oild chuck, it is mainly the size realizing improving blessing power by adjustment pressure, and be fixedly connected on vertical shaft on slip spider with, both done the rotation of transmitting torque, do again the axially-movable of axial slip, reach the object of rod boring or lifting.
Claims (5)
1. a double card dish replaces the continuous drilling type rock-core borer of bar, comprise base and be arranged on the rock-core borer on base, it is characterized in that: described rock-core borer comprises Rack Body and is arranged on the transfer case assembly on Rack Body, hoist engine assembly, transmission assembly, hydraulic system, clutch system, power assembly and double card dish automatic pouring bar drilling mechanism, described double card dish automatic pouring bar drilling mechanism comprises the revolution body be sleeved on vertical shaft rock-core borer vertical shaft, revolution body is provided with the housing docked with vertical shaft rock-core borer transfer case body, output shaft in described transfer case body is provided with little curved tooth gear, the large curved tooth gear of the little curved tooth gears meshing with transfer case is installed in revolution body housing, large curved tooth gear set is on the vertical shaft of vertical shaft rock-core borer, vertical shaft rock-core borer vertical shaft above and below revolution body is all provided with torsion pass formula oild chuck, torsion pass formula oild chuck above described revolution body is set to initiatively torsion pass formula oild chuck, torsion pass formula oild chuck below revolution body is set to driven torsion pass formula oild chuck, described torsion pass formula oild chuck comprises the slip spider be sleeved on vertical shaft rock-core borer vertical shaft, the slip assemblies of holding drill pipe is provided with on the top of slip spider, the chuck body of push card watt radial displacement is set with outside slip assemblies, the contact surface of described chuck body and slips is set to inclined-plane wide at the top and narrow at the bottom, the piston body driving chuck body to move up and down is set with outside chuck body, between piston body and chuck body, thrust bearings is installed, cylinder body is set with outside the piston body of torsion pass formula oild chuck, described piston body outer wall is provided with a circle boss, cylinder body inwall is provided with the spacing edge coordinating with piston body boss and promote piston body and move up and down, the beam seat body be fixedly connected with cylinder body is set with in slip spider bottom, angle bearing group is provided with between the middle part and slip spider of beam seat body, upper sealing device is provided with between beam seat body and slip spider above angle bearing group, lower sealing device is provided with between the below beam seat body and slip spider of angle bearing group, the below slip spider of lower sealing device is set with the locking nut coordinated with beam seat body, between the cylinder body of described active torsion pass formula oild chuck and revolution body, circumference is evenly distributed with the upper cylinder of some vertical settings, the cylinder body circumference of active torsion pass formula oild chuck is distributed with and upper cylinder upper cylinder installing hole one to one, between the beam seat body of described driven torsion pass formula oild chuck and revolution body, circumference is evenly distributed with the lower oil cylinder of some vertical settings, lower oil cylinder and upper cylinder one_to_one corresponding are arranged, and on the beam seat body of driven torsion pass formula oild chuck, circumference is distributed with and plays oil cylinder installing hole one to one with lower oil cylinder, between the beam seat body of described active torsion pass formula oild chuck and revolution body, circumference is evenly distributed with the upper guide peg of some vertical settings, on the beam seat body of active torsion pass formula oild chuck, circumference is distributed with and goes up guide peg installing hole one to one with upper guide peg, between the cylinder body of described driven torsion pass formula oild chuck and revolution body, circumference is evenly distributed with the lower guide peg of some vertical settings, lower guide peg and upper guide peg one_to_one corresponding are arranged, and the cylinder body circumference of driven torsion pass formula oild chuck is distributed with and descends guide peg installing hole one to one with lower guide peg.
2. double card dish according to claim 1 replaces the continuous drilling type rock-core borer of bar, it is characterized in that: be provided with safe locknut at the slip spider of active torsion pass formula oild chuck and the connection of thread of vertical shaft rock-core borer vertical shaft.
3. double card dish according to claim 1 replaces the continuous drilling type rock-core borer of bar, it is characterized in that: the chuck body of described torsion pass formula oild chuck is provided with the oil-filling mechanism I of lubricating thrust bearing group.
4. double card dish according to claim 1 replaces the continuous drilling type rock-core borer of bar, it is characterized in that: the beam seat body of described torsion pass formula oild chuck is provided with the oil-filling mechanism II of Lubrication Angle bearing group.
5. double card dish according to claim 1 replaces the continuous drilling type rock-core borer of bar, it is characterized in that: the slip assemblies of described torsion pass formula oild chuck is the slips that 6 circumferences are evenly distributed on slip spider.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420751077.8U CN204266918U (en) | 2014-12-04 | 2014-12-04 | A kind of double card dish replaces the continuous drilling type rock-core borer of bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420751077.8U CN204266918U (en) | 2014-12-04 | 2014-12-04 | A kind of double card dish replaces the continuous drilling type rock-core borer of bar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204266918U true CN204266918U (en) | 2015-04-15 |
Family
ID=52801790
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420751077.8U Expired - Fee Related CN204266918U (en) | 2014-12-04 | 2014-12-04 | A kind of double card dish replaces the continuous drilling type rock-core borer of bar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204266918U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109723381A (en) * | 2019-03-01 | 2019-05-07 | 冀凯河北机电科技有限公司 | A kind of coal mine automatically continuously drilling drill carriage |
-
2014
- 2014-12-04 CN CN201420751077.8U patent/CN204266918U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109723381A (en) * | 2019-03-01 | 2019-05-07 | 冀凯河北机电科技有限公司 | A kind of coal mine automatically continuously drilling drill carriage |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202417306U (en) | Novel water well drilling machine | |
| CN102943617A (en) | Deep hole geological exploration drilling machine | |
| CN202900036U (en) | Deep hole geological exploration drilling machine | |
| CN202503894U (en) | Large-aperture tree well drilling machine | |
| CN201730544U (en) | Hydraulic rotary table of oil drilling machine | |
| CN204266918U (en) | A kind of double card dish replaces the continuous drilling type rock-core borer of bar | |
| CN201460775U (en) | Hydraulic power water tap of oil rig directly driven by adopting radial plunger motor | |
| CN103306606B (en) | Planetary gear train energy-saving dual-layer drill for drilling of deep oil gas well | |
| CN109209355A (en) | A kind of unidirectional continuous rotation motor driven shearing valve type mud pulse generator | |
| CN204266913U (en) | A kind of vertical shaft rock-core borer double card dish replaces reversing device | |
| CN202510028U (en) | Power head of deep hole hydraulic core drilling machine | |
| CN209291790U (en) | A kind of ROV operation ocean lifts locking device | |
| CN204266908U (en) | A kind of vertical shaft rock-core borer active spider automatic pouring bar drilling apparatus | |
| CN201915846U (en) | Drill accelerator | |
| CN201159266Y (en) | Special gearbox for thin coal seam mining drill rig | |
| CN204532057U (en) | A kind of Miniature portable spindle-type drill | |
| CN106555391B (en) | Marine embedding rock job platform | |
| CN201704013U (en) | Novel hydraulic rope coring winch | |
| CN203189618U (en) | Decelerator for construction elevator | |
| CN201047252Y (en) | Long screw driller hydraulic power head | |
| CN201687400U (en) | Two-way power increasing stroke mechanism of foundation pile boring machine | |
| CN201288500Y (en) | Rotary drilling hydraulic power head with vibrator | |
| CN104481392B (en) | Vertical shaft core drill double card dish is reversing device alternately | |
| CN107060637A (en) | A kind of slide block type mud motor | |
| CN111502569A (en) | Underground anti-reverse debris bed flushing tool |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160203 Address after: 222000 Jiangsu, Haizhou District, Haizhou Development Zone, the new East Road, No. 1 Patentee after: H.H. DRILL-TECH DRILLING MACHINERY CO., LTD. Address before: 222000 Jiangsu, Haizhou District, Haizhou Development Zone, the new East Road, No. 1 Patentee before: Lianyungang Huanghai Machinery Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150415 Termination date: 20161204 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |