CN101761309B - Stoper - Google Patents
Stoper Download PDFInfo
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- CN101761309B CN101761309B CN2009101553716A CN200910155371A CN101761309B CN 101761309 B CN101761309 B CN 101761309B CN 2009101553716 A CN2009101553716 A CN 2009101553716A CN 200910155371 A CN200910155371 A CN 200910155371A CN 101761309 B CN101761309 B CN 101761309B
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- air leg
- main frame
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- arm
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- 230000002093 peripheral effect Effects 0.000 claims description 4
- 230000000295 complement effect Effects 0.000 claims description 2
- 239000011435 rock Substances 0.000 abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 12
- 238000010276 construction Methods 0.000 abstract description 4
- 238000005065 mining Methods 0.000 abstract description 3
- 206010016173 Fall Diseases 0.000 abstract 1
- 238000005553 drilling Methods 0.000 description 12
- 238000005516 engineering process Methods 0.000 description 5
- 125000006850 spacer group Chemical group 0.000 description 5
- 230000009183 running Effects 0.000 description 4
- 230000001914 calming effect Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000003292 diminished effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
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Abstract
The invention relates to a stopper which comprises a main machine and a two-stage air leg. The main machine consists of a machine head, a cylinder body and a handle body. The top end of an outer cylinder barrel of the two-stage air leg is hermetically connected with a lower port of the handle body through a fastening piece; a flow distribution hinged shaft is arranged on the wall of the handle body; and an operating arm consisting of an arm body, a hose and a control device is hinged on the flow distribution hinged shaft. The control device consists of a main machine operating valve and an air leg operating valve; control handles are respectively arranged on the main machine operating valve and the air leg operating valve; and the works of the main machine operating valve and the air leg operating valve can be controlled through rotating the control handle. After the operating arm is additionally increased in the invention, an operator can keep a certain distance with the stopper during the operation, so that the problems that rock magmas and falling-down rocks directly pound the operator, bits are blocked and the like are solved. The stopper has the advantages that the positioning and eye widening accuracy is good, and the main machine is not required to be dismounted during the replacement of gas-water needles and is a special device which not only can be used for vertical shaft and courtyard tunnelling and mining construction, but also can be used for roadway anchored bar support engineering construction.
Description
[technical field]
The invention belongs to a kind of overhead driller.
[background technology]
In vertical shaft for mine upraise, mining and roadway bolt support engineering; Need a large amount of directions of Drilling to become 60 °～90 ° petrosal foramen upwards and with horizon; Especially the all-round popularization of roadway bolt support technology is used, and the demand of Drilling back bolthole increases day by day.At present; The drilling equipment that is used for above-mentioned operation mainly divides two types: one type is the pure revolution jumbolter that is exclusively used in Drilling soft-rock tunnel bolt support hole; Another kind of is the equipment of hard above stone head bolthole in the Drilling; The former can satisfy the engineering requirement basically, and then there are problems in the latter, need update.
Overhead driller is the equipment of punchinging of hard above rock in a kind of being exclusively used in, and its structure is made up of main frame and air leg, and main frame comprises head, cylinder body, handle body three parts, unifies through two long bolts.The head front end is used to admit drill steel, and the gentle leg venting of handgrip knob is housed on the cylinder body, and the gentle waterpipe jointing of other control crank is concentrated and is located on the handle body.Handle body lower port is twisted mutually through screw thread and air leg and is connect, air leg and the main frame axis that exists together.There is following problem in this machine: 1, air leg is a single stage type, and flexible stroke is little and relative altitude is high, is difficult to adapt to Drilling back bolthole in height, all restricted tunnel, space.2, change the air water needle device and need dismantle main frame, workload is big and inconvenient.3, the staff must stand in machine under, magma can directly water with rock that maybe inbreak pounds on one's body the operator many, the work under bad environment of potential safety hazard.
In actual job, the equipment of punchinging of hard above rock during the twin-stage airleg rock drill of known technology also is used as often, it belongs to upper quadrant side direction rock drilling machine.Its structure is made up of main frame and air leg equally, and difference is that its air leg is a twin-stage, and therefore, it is adapted at Drilling back bolthole in height, all restricted tunnel, space.But this machine exists following not enough: 1, the same with overhead driller, operating personnel must stand in machine under, the rock of magma and possibility inbreak can directly water pounds on one's body the operator many, the work under bad environment of potential safety hazard.2, the flexible stroke of twin-stage air leg is big, and after air leg all stretched, the operator can't control main frame and air leg because hand can not touch the control crank of main frame, and is easy out of control and have major safety risks.3, air leg is connected by jointed shaft with main frame, and therefore both, cause the problem that the position of widening the view is inaccurate, the bolthole straightness accuracy can not satisfy the bolt support technology requirement easily not on same axis.
To the 1st deficiency that above-mentioned twin-stage airleg rock drill exists, the applicant had once applied for a kind of " Pneumatic anchor rod hammer drill " (Chinese patent number be 200820164575.7).This machine is set up an air leg control arm on jointed shaft; Through the controlling organization on the air leg control arm; Realized the stretching, extension of twin-stage air leg and retraction control, thus solved operating personnel must stand in machine under, magma can directly water the problem on one's body the operator of pounding with rock that maybe inbreak; But can not main control system when running into card pricker after still existing air leg all to stretch, and the problem that the position of widening the view is inaccurate, the bolthole straightness accuracy can not satisfy the bolt support technology requirement.
To sum up, also there is not a kind of desirable equipment that is exclusively used in hard above stone head bolthole in the Drilling to come out so far.
[summary of the invention]
For solving the problems referred to above that prior art exists; The present invention aims to provide the novel overhead driller of a kind of structure; This machine hard above rock roofbolt hole in the Drilling in height and all restricted tunnel, space has institute Drilling hole and can satisfy support engineering technical requirements, main frame and air leg and control and make things convenient for and the advantage of handling safety.
The technical scheme that addresses the above problem is following: the structure of this overhead driller; Comprise main frame and air leg; Main frame is made up of through three parts that two long bolts unify head, cylinder body, handle body; It is characterized in that: said air leg is the twin-stage air leg, and the outer cylinder top of twin-stage air leg is through the lower port of securing member sealed attachment at the handle body; The body wall of handle body is provided with a flow jointed shaft, is hinged with a control arm on the flow jointed shaft, and control arm is made up of arm body, flexible pipe and control device; Control device is located at the lower end of arm body, comprises main frame control valve and air leg control valve, is respectively equipped with the control handgrip on main frame control valve and the air leg control valve, and the turn state of control handgrip is associated with the gas circuit path or the aisle spare of main frame or twin-stage air leg respectively.
As to technique scheme further replenish and perfect, the present invention also has following additional technical feature:
The height of the length of said control arm and twin-stage air leg is complementary.
Said arm body is made up of the hinged cover in a left side, right hinged cover and two symmetrically arranged rigidity hollow sections; The upper end of two rigidity hollow sections is hinged on the flow jointed shaft through left hinged cover, right hinged cover respectively, and the lower end is affixed through arm connector and control device; The handle sports association of the upper end of said flexible pipe and main frame connects, and the lower end connects with control device through the arm connector.
The main frame control valve of said control device and air leg control valve are located at the two ends of a total valve seat respectively; The main frame control valve is made up of main frame valve, host computer control handgrip, and the main frame valve is in the main frame valve base is arranged on total valve seat, and it is peripheral that the host computer control grip cover is located at the main frame valve; The air leg control valve is made up of air leg valve, air leg control handgrip, and the air leg valve is arranged on total valve seat through the air leg valve base, and it is peripheral that air leg control grip cover is located at the air leg valve; The top of total valve seat is fixedly connected with the lower end of two rigidity hollow sections of arm body, the lower end of flexible pipe respectively through the arm connector.
The outer cylinder top thread connection of said twin-stage air leg one cylinder cap, cooperate with transverse plane with the face of cylinder between cylinder cap and the handle body and be connected with securing member.
Said flow jointed shaft is that a longitudinal section is horizontal " H " profile shaft, and the middle part is set in by in the formed axis hole of handle body wall, and two ends form left and right sides air cavity by the end cap shutoff; Have air flue on the ring wall of left and right sides air cavity, said air flue links to each other with source of the gas with main frame control valve, air leg control valve through left hinged cover, right hinged cover and inlet suction port respectively.
Beneficial effect: compared with prior art, at first, set up control arm after; Control handgrip difference main control system and air leg make the operator keep a segment distance with machine about operator's control arm capable of using lower end, and the rock of magma and inbreak can directly not water to be pounded on one's body the operator; Even and run into the card pricker and also can utilize control operating handle main frame and solving a problem promptly; Therefore, improve the machine safety in utilization, improved working environment.Secondly; Owing to adopted the twin-stage air leg that is in same axis with main frame; Flexible stroke and the location that the has guaranteed machine degree of accuracy of widening the view; Make the petrosal foramen straightness accuracy can satisfy the requirement of Drilling back bolthole, make this machine can be used for the construction of vertical shaft, upraise and mining, can be used for the construction of roadway bolt support engineering again.Moreover; Thread connection one cylinder cap on the outer cylinder top of twin-stage air leg makes to cooperate with transverse plane with the face of cylinder between cylinder cap and the handle body and is connected with securing member, when needs replacing air water pin; Just need not dismantle main frame, as long as the dismounting cylinder cap just can be changed the air water needle device easily.
Through embodiment, the present invention is made further detailed description below in conjunction with accompanying drawing.
[description of drawings]
Fig. 1 is the main TV structure sketch map of one embodiment of the invention.
Fig. 2 looks the broken section structural representation for the left side of Fig. 1.
Fig. 3 is that the P of Fig. 1 is to the broken section structural representation.
Fig. 4 is the Y-Y broken section structure for amplifying sketch map of Fig. 2.
Fig. 5 is the X-X broken section structure for amplifying sketch map of Fig. 1.
Fig. 6 is the N-N sectional structure sketch map of Fig. 5.
Fig. 7 is the L-L sectional structure sketch map of Fig. 5.
Fig. 8 is the J-J sectional structure sketch map of Fig. 5.
Fig. 9 is the K-K sectional structure sketch map of Fig. 5.
Among the figure: main frame 10, head 101, cylinder body 102, handle body 103, Pneumatic-hydraulic interlocked device 1031, long bolt 104; Twin-stage air leg 20, cylinder cap 201, outer cylinder 202; Control arm 30, arm body 301, left hinged cover 3011, arm left side pipe 3012, right hinged cover 3013; The right pipe 3014 of arm, arm connector 3015, flexible pipe 302, total valve seat 303; Main frame control valve 304, host computer control handgrip 305, spacer pin 306, main frame is handled valve seat 307; Air leg is handled valve seat 308, air leg control valve 309, air leg control handgrip 310, stator 311; Inlet suction port 40, water supply connector 50, flow jointed shaft 60, O shape circle 70.
[specific embodiment]
Referring to Fig. 1.Complete machine is made up of main frame 10, twin-stage air leg 20 and motion arm 30 3 parts.Main frame 10 comprises head 101, cylinder body 102 and handle body 103, and the three is connected into integral body by two long bolts 104; Head 101 front ends are used to admit drill steel.Twin-stage air leg 20 is fixed in the lower port of handle body 103, and main frame 10 exists together with twin-stage air leg 20 on the axis.Motion arm 30 is hinged on the wall of handle body 103 1 sides through flow jointed shaft 60.
Referring to Fig. 2.Control arm 30 is made up of arm body 301, flexible pipe 302 and control device three parts.Arm body 301 is two symmetrically arranged rigidity hollow sections, and the double as gas pipeline is respectively arm left side pipe 3012 and the right pipe 3014 of arm.Hinged cover 3011 is articulated in the left side of flow jointed shaft 60 through a left side in arm left side pipe 3012 upper ends, and hinged cover 3013 is articulated in the right side of flow jointed shaft 60 through the right side in the right pipe of arm 3014 upper ends; The lower end of arm left side pipe 3012 and the right pipe 3014 of arm is fixed on the control device through arm connector 3015.
Said flow jointed shaft 60 is that a longitudinal section is horizontal " H " profile shaft, and the middle part is set in by in the formed axis hole of handle body 103 walls, and two ends form left and right sides air cavity by the end cap shutoff; Have air flue on the ring wall of left and right sides air cavity, said air flue links to each other with source of the gas with main frame control valve 304, air leg control valve 309 with inlet suction port 40 through left hinged cover 3011, right hinged cover 3013 respectively.The ring wall of left side air cavity is used for the left hinged cover 3011 of accepting arm left side pipe 3012, and the ring wall of right air cavity is used for the right hinged cover 3013 of the right pipe 3014 of accepting arm, and inlet suction port 40.Be equipped with the pore of annular spread on the ring wall of left side air cavity and right air cavity, corresponding, have cannelure on the inwall of the hinged cover in the left and right sides, therefore, even left hinged cover 3011 and right hinged cover 3013 can not influence gas circuit yet and communicate under rotation status.The end cap that is positioned at flow jointed shaft 60 two ends had both played the effect of sealing left and right sides air cavity, also played the axial limiting effect simultaneously.
Referring to Fig. 3, and combine Fig. 2.The installing hole of water supply connector 50 is set on the handle body 103, and water supply connector 50 is installed in this hole, and the water source gets into along the B arrow along the entering of A arrow, source of the gas among Fig. 2 through tube connector.
Referring to Fig. 4.Pneumatic-hydraulic interlocked device 1031 places in the handle body 103; Cylinder cap 201 on the twin-stage air leg 20 is threaded with outer cylinder 202, and cylinder cap 201 cooperates with the handle body 103 employing faces of cylinder and transverse plane, and by the fastening connection of securing member (bolt or screw), and main frame 10 and twin-stage air leg 20 are existed together on the axis.
Referring to Fig. 5, and combine Fig. 1, Fig. 2.Control device is positioned at control arm 30 bottom, by total valve seat 303, main frame control valve 304, and host computer control handgrip 305, spacer pin 306, main frame is handled valve seat 307, and air leg valve seat 308, air leg control valve 309, air leg control handgrip 310 compositions such as grade.Connector 3015 links together through double-screw bolt or screw and total valve seat 303; Install main frame in total valve seat 303 holes and handle valve seat 307; Main frame control valve 304 is contained in main frame and handles in the valve seat 307; Main frame control valve 304 can rotate in main frame is handled valve seat 307, and main frame is handled the end face of valve seat 307 spacer pin 306 is installed, and host computer control handgrip 305 is fixed together with main frame control valve 304; Spacer pin 306 main control systems are controlled the slewing area of handgrip 305, reach the purpose of restricting host control valve 304 slewing areas.Air leg control valve 309 is contained in air leg and handles in the valve seat 308, and air leg control valve 309 can rotate in air leg is handled valve seat 308, and air leg control handgrip 310 is fixedly connected with air leg control valve 309, and air leg is handled valve seat 308 and is fixedly mounted on total valve seat 303.
Operating principle is following:
As shown in Figure 2, calm the anger and get into a chamber of flow jointed shafts 60 from inlet suction port 40, a chamber through the right side hinged cover 3013, the right pipe 3014 of arm connect (see figure 5) with the d chamber of total valve seat 303.
1, to the manipulation of main frame 10 control: like Fig. 5 and shown in Figure 2, the d chamber is handled valve seat 307, total valve seat 303, arm left side pipe 3012 through main frame control valve 304, main frame and is linked to each other with the b chamber of flow jointed shaft 60 with left hinged cover 3011.As shown in Figure 4, the b chamber of flow jointed shaft 60 communicates with the c chamber of handle body 103, gets into driving host 10 runnings of calming the anger in c chamber.In conjunction with Fig. 6, Fig. 7, have four profile of tooth seams on the big column surface of main frame control valve 304,0,1,2,3 shown in promptly on Fig. 6; Corresponding respectively four work gears, under the restriction of spacer pin 306 (referring to Fig. 5), main frame control valve 304 can only rotate between 0,1,2,3 four seams; Rotate host computer control handgrip 305; When stator 311 embedded 0 seam, the n1 mouth of the m1 mouth of main frame control valve 304 and main frame manipulation valve seat 307 was disconnected, and main frame 10 shuts down; When stator 311 embedded 1,2,3 seams according to this, as shown in Figure 7, the connection area (passage of calming the anger) that the m1 mouth of main frame control valve 304 and main frame are handled the n1 mouth of valve seat 307 became greatly successively, then realizes the light running of main frame 10, middle running, commentaries on classics state for the national games.
2, the manipulation of twin-stage air leg 20 is controlled: like Fig. 5 and shown in Figure 4; The d chamber links to each other with the h chamber of handle body 103 through air leg control valve 309, the n2 hole of air leg manipulation valve seat 308, passage g, the flexible pipe 302 of total valve seat 303, and one-level cylinder barrel, the secondary cylinder barrel that promotes twin-stage air leg 20 of calming the anger that gets into the h chamber stretches out; As shown in Figure 9 and combine Fig. 8, be respectively equipped with crescent air supply duct m2 and exhaust duct m3 on the outer round surface of air leg control valve 309, exhaust duct m3 and q hole join and lead to atmosphere, and air leg is controlled handgrip 310 and can only in O1 to O2 scope, be rotated; When air leg control handgrip 310 turned to the O1 position, it is maximum that area is connected in the n2 hole of crescent air supply duct m2 on the air leg control valve 309 and air leg control valve seat 308, and air leg thrust is maximum; Rotate air leg control handgrip 310 to the O2 direction; The n2 hole of crescent air supply duct m2 and air leg control valve seat 308 is connected area and is diminished gradually, and the thrust of twin-stage air leg 20 reduces gradually, when air leg control handgrip 310 turns to the O2 position; Exhaust duct m3 and n2 hole are connected; Then h chamber and atmosphere are connected, the outside exhaust of twin-stage air leg 20 inner chambers, and twin-stage air leg 20 descends.
Claims (6)
1. overhead driller; Comprise main frame (10) and air leg; Main frame (10) is made up of through three parts that two long bolts (104) unify head (101), cylinder body (102), handle body (103); It is characterized in that: said air leg is twin-stage air leg (20), and outer cylinder (202) top of twin-stage air leg (20) is through the lower port of securing member sealed attachment in handle body (103); The body wall of handle body (103) is provided with a flow jointed shaft (60), is hinged with a control arm (30) on the flow jointed shaft (60), and control arm (30) is made up of arm body (301), flexible pipe (302) and control device; Control device is located at the lower end of arm body (301); Comprise main frame control valve (304) and air leg control valve (309); Be respectively equipped with the control handgrip on main frame control valve (304) and the air leg control valve (309), the turn state of control handgrip is associated with the gas circuit path or the aisle spare of main frame (10) or twin-stage air leg (20) respectively.
2. overhead driller as claimed in claim 1, its characteristic: the height of the length of said control arm (30) and twin-stage air leg (20) is complementary.
3. overhead driller as claimed in claim 1, its characteristic: said arm body (301) is made up of the hinged cover in a left side (3011), right hinged cover (3013) and two symmetrically arranged rigidity hollow sections; The upper end of two rigidity hollow sections is hinged on the flow jointed shaft (60) through left hinged cover (3011), right hinged cover (3013) respectively, and the lower end is affixed through arm connector (3015) and control device; The upper end of said flexible pipe (302) connects with the handle body (103) of main frame (10), and the lower end connects with control device through arm connector (3015).
4. like claim 1 or 3 described overhead drillers, its characteristic: the main frame control valve (304) of said control device and air leg control valve (309) are located at the two ends of a total valve seat (303) respectively; Main frame control valve (304) is made up of main frame valve, host computer control handgrip (305), and the main frame valve is handled valve seat through main frame, and (307 are arranged in total valve seat (303), and it is peripheral that host computer control handgrip (305) is set in the main frame valve; Air leg control valve (309) is made up of air leg valve, air leg control handgrip (310), and the air leg valve is handled valve seat (308) through air leg and is arranged on total valve seat (303), and it is peripheral that air leg control grip cover (310) is located at the air leg valve; The top of total valve seat (303) is fixedly connected with the lower end of two rigidity hollow sections of arm body (301), the lower end of flexible pipe (302) respectively through arm connector (3015).
5. like claim 1 or 3 described overhead drillers, its characteristic: outer cylinder (202) the top thread connection of said twin-stage air leg (20) cylinder cap (201), cooperate with transverse plane with the face of cylinder between cylinder cap (201) and the handle body (103) and be connected with securing member.
6. like claim 1 or 3 described overhead drillers, its characteristic: said flow jointed shaft (60) is that a longitudinal section is horizontal " H " profile shaft, and the middle part is set in by in the formed axis hole of handle body (103) wall, and two ends form left and right sides air cavity by the end cap shutoff; Have air flue on the ring wall of left and right sides air cavity, said air flue links to each other with source of the gas with main frame control valve (304), air leg control valve (309) through left hinged cover (3011), right hinged cover (3013) and inlet suction port (40) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101553716A CN101761309B (en) | 2009-12-21 | 2009-12-21 | Stoper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101553716A CN101761309B (en) | 2009-12-21 | 2009-12-21 | Stoper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101761309A CN101761309A (en) | 2010-06-30 |
| CN101761309B true CN101761309B (en) | 2012-06-27 |
Family
ID=42492677
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101553716A Expired - Fee Related CN101761309B (en) | 2009-12-21 | 2009-12-21 | Stoper |
Country Status (1)
| Country | Link |
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| CN (1) | CN101761309B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| KR101373544B1 (en) * | 2012-07-03 | 2014-03-25 | 이일재 | Hitting body for hydraulic percussion apparatus |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2115404U (en) * | 1991-12-31 | 1992-09-09 | 浙江衢州煤矿机械厂 | Double-cascade air-leg gadder |
| CN101050688A (en) * | 2007-05-11 | 2007-10-10 | 王光临 | Airleg rock drill |
| CA2551992A1 (en) * | 2006-08-01 | 2008-02-01 | Claude A. Martel | Vibration damper |
| CN101363306A (en) * | 2008-09-10 | 2009-02-11 | 浙江衢州煤矿机械总厂有限公司 | Pneumatic anchor rod hammer drill |
| CN101440692A (en) * | 2008-12-29 | 2009-05-27 | 李永胜 | Gas leg type high speed rock drill |
| CN201581798U (en) * | 2009-12-21 | 2010-09-15 | 浙江衢州煤矿机械总厂有限公司 | Upward type rock drilling machine |
-
2009
- 2009-12-21 CN CN2009101553716A patent/CN101761309B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2115404U (en) * | 1991-12-31 | 1992-09-09 | 浙江衢州煤矿机械厂 | Double-cascade air-leg gadder |
| CA2551992A1 (en) * | 2006-08-01 | 2008-02-01 | Claude A. Martel | Vibration damper |
| CN101050688A (en) * | 2007-05-11 | 2007-10-10 | 王光临 | Airleg rock drill |
| CN101363306A (en) * | 2008-09-10 | 2009-02-11 | 浙江衢州煤矿机械总厂有限公司 | Pneumatic anchor rod hammer drill |
| CN101440692A (en) * | 2008-12-29 | 2009-05-27 | 李永胜 | Gas leg type high speed rock drill |
| CN201581798U (en) * | 2009-12-21 | 2010-09-15 | 浙江衢州煤矿机械总厂有限公司 | Upward type rock drilling machine |
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| Publication number | Publication date |
|---|---|
| CN101761309A (en) | 2010-06-30 |
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| 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 | ||
| C56 | Change in the name or address of the patentee |
Owner name: ZHEJIANG QUZHOU GENERAL COAL MINE MACHINERY FACTOR Free format text: FORMER NAME: ZHEJIANG QUZHOU COAL MINE MACHINERY PLANT CO., LTD. |
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| CP03 | Change of name, title or address |
Address after: 324000 Donggang Industrial Park, Quzhou, Zhejiang Patentee after: ZHEJIANG QUZHOU COAL MINING MACHINERY CO.,LTD. Address before: 324000 Donggang Industrial Park, Zhejiang, Quzhou Patentee before: Zhejiang Quzhou General Coal Mine Machinery Factory Co.,Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120627 |