CN201982128U - Immediate support device for retractable tunneling - Google Patents
Immediate support device for retractable tunneling Download PDFInfo
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- CN201982128U CN201982128U CN2011200619282U CN201120061928U CN201982128U CN 201982128 U CN201982128 U CN 201982128U CN 2011200619282 U CN2011200619282 U CN 2011200619282U CN 201120061928 U CN201120061928 U CN 201120061928U CN 201982128 U CN201982128 U CN 201982128U
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- elasticity
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- 230000005641 tunneling Effects 0.000 title abstract description 4
- 238000010276 construction Methods 0.000 claims description 5
- 230000002708 enhancing effect Effects 0.000 abstract 1
- 101100521345 Mus musculus Prop1 gene Proteins 0.000 description 21
- 108700017836 Prophet of Pit-1 Proteins 0.000 description 21
- 238000009412 basement excavation Methods 0.000 description 4
- 230000001429 stepping effect Effects 0.000 description 4
- 241001125879 Gobio Species 0.000 description 3
- 239000003245 coal Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000010339 dilation Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
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Abstract
An immediate support device for retractable tunneling effectively resolves the problem of incapability to contact roof constantly or bad roof contact capability. The immediate support device comprises hydraulic vertical posts, transverse beams and vertical beams and is characterized in that base seats are arranged under the hydraulic vertical posts, the transverse beams comprise a front transverse beam, a middle transverse beam, a back transverse beam, a main support transverse beam and an auxiliary support transverse beam which are arranged parallel to each other, the vertical beams comprise a front elastic vertical beam, a middle elastic vertical beam, a back elastic vertical beam, a front rigidity vertical beam, a middle rigidity vertical beam, a back rigidity vertical beam and a side rigidity vertical beam which are arranged parallel to each other and vertical to the transverse beams, a driving hydraulic cylinder is hinged between every two transverse beams, and the elastic vertical beams and the rigidity vertical beams are respectively fixed on the corresponding transverse beams, inserted into limit guide sleeves of the corresponding transverse beams and move back and forth along the limit guide sleeves driven by the transverse beams. The support device is reasonable in structure, convenient to adjust constant roof contact and stable in supporting, improves working environment of workers, and better meets the requirement for matching work of underground roadway support and roadheaders, thereby enhancing support quality of roadway roof and increasing working efficiency remarkably.
Description
Technical field
The utility model relates to a kind of improved tunnelling operation temporary support device, particularly a kind of compound telescopic back timber mechanism and flexible driving immediate support device that meets top mechanism of adopting.Belong to mining machinery manufacturing and application.
Background technology
At present, along with the comprehensive mechanized development machine generally use of (being called for short " fully-mechanized digging machine "), " drilling and blasting " operating type that the efficient of tunnelling is more traditional has had large increase.Exploitation year by year along with the colliery, the coal seam degree of depth is more and more darker, the rock overall load of back has the trend that increases gradually like this, certainly will not allow the empty top of large tracts of land (even have also have certain danger under the facility of temporary lining) because the increase of rock load and top board are grown, top board in the regular hour if can not get crush phenomenon with absciss layer of supporting meeting timely and effectively.Even therefore present domestic coal mine roadway is having under the situation of temporary lining, also can only allow the sky top about 4-6m.
The driving temporary lining mode that has some to link to each other in recent years with fully-mechanized digging machine, as publication number is the driving temporary support device of CN201236706, but this class is fixed on the support apparatus on the fully-mechanized digging machine fuselage, the influence that is subjected to the fully-mechanized digging machine operation is very big and practicality is not strong, because it is very big that fully-mechanized digging machine vibrates when headwork, so this class supporting is when development machine is worked or can't use at all, perhaps directly cause the vibratility of back to destroy.
The inventor once designed patent announcement number " lame advanced supporting rack " for CN200985799Y, and it is applicable to carries out advance support to the tunnel of adopting existing permanent support means when coal-face advances.Each frame of this support frame is made up of same back timber, base and the column and the quadric chain that are connected wherein.Form one group by anti-down jack side by side by the engaging lug connection between its two, two adjacent pack supports of front and back are connected with the passing jack by extensible canopy.Management to back during operation will depend on the existing anchor net in tunnel, capplce etc. to a certain extent, still need to construct and the preliminary treatment in tunnel at the support front end, its structure and support principle are not suitable in headwork and carry out temporary lining in the face of the exposed back of driving.Design patent announcement number " fully-mechanized digging machine immediate support device " on this basis again for CN101251022B, it adopts the preceding back timber of being made up of slip back timber and guiding back timber to constitute the bogie side frame of rock-steady structure, be hinged to fore-stock by bogie side frame arranged side by side by arch beam or horizontal gird, be arranged in the top of fully-mechanized digging machine, spaced apart along beam on crossbeam, adjacent along belt guard beam or telescopic along girder construction is set between the beam.The method of operation that employing takes a step to advance, test this support through on-the-spot operation and to a certain extent the integrality of top board is still had certain influence, though the mode that has reduced setting load but alternately taken a step inevitably repeats roof supporting, influenced the effect of permanent supports such as anchor pole and anchor cable to a certain extent.
The utility model content
The purpose of this utility model provides a kind of telescopic driving immediate support device, it has solved effectively that prior art exists in use can not connect the top continuously or connect the problem of top ability, its structure distribution is reasonable, it is easy to adjust to connect the top continuously, supporting ﹠ stablizing, improve workman's operating environment, satisfied underworkings supporting and fully-mechanized digging machine better and carried out the requirement of supporting operation, significantly improved the supporting quality and the excavation operation efficient of back.
The technical scheme that the utility model adopted is: this telescopic driving immediate support device comprises hydraulic vertical prop, crossbeam by the support of hydraulic vertical prop column cap, be assembled in the suitable beam on the crossbeam, its technical essential is: the base independently separately be connected with hydraulic system is set at the bottom of the post of described hydraulic vertical prop, described crossbeam comprises the front beam that is parallel to each other and arranges, middle cross beam, rear cross beam, main supporting traverse and auxilliary supporting traverse, described along beam comprise be parallel to each other arrange and with the perpendicular preceding elasticity of described crossbeam along beam, middle elasticity is along beam, back elasticity is along beam, preceding rigidity is along beam, middle rigidity is along beam, back rigidity Shun Liang and limit rigidity are along beam, described front beam and middle cross beam, middle cross beam and rear cross beam, between two beams of rear cross beam and main supporting traverse, being hinged with driving two beams respectively splits mutually, close mobile passing hydraulic cylinder, elasticity Shun Liang and preceding rigidity are separately fixed on the described front beam along an end of beam before described, the other end is inserted into respectively in the spacing guide pin bushing of described middle cross beam top, and the spacing guide pin bushing above the described middle cross beam in the drive lower edge of described front beam moves back and forth; Elasticity Shun Liang and middle rigidity are separately fixed on the described middle cross beam along an end of beam in described, and the other end is inserted into respectively in the spacing guide pin bushing of described rear cross beam top, and the spacing guide pin bushing above the described rear cross beam in the drive lower edge of described middle cross beam moves back and forth; Described back elasticity Shun Liang, back rigidity are separately fixed on the described rear cross beam along an end of beam, the other end is inserted into respectively in the fixedly guide pin bushing of described main supporting traverse and auxilliary supporting traverse top, and the fixedly guide pin bushing above described main supporting traverse in the drive lower edge of described rear cross beam and auxilliary supporting traverse moves back and forth; One end of the suitable beam of described limit rigidity is fixed on the end of described rear cross beam, and the other end is inserted in the spacing guide pin bushing of described main supporting traverse and auxilliary supporting traverse top.
The two ends of described front beam, middle cross beam, rear cross beam, main supporting traverse and auxilliary supporting traverse are hinged on the column cap of described hydraulic vertical prop by reset rubber and bearing pin respectively.
Elasticity Shun Liang, middle elasticity Shun Liang, back elasticity all are the modular constructions that are formed by fixedly connecting by rigid box system leading portion that becomes and the back segment of being made by the layered laminate leaf spring along beam before described.
The described auxilliary supporting traverse outside is hinged with balance arm.
Advantage and the good effect that the utlity model has are: because the utility model adopts the front beam that is parallel to each other and arranges that is supported by hydraulic vertical prop that the independent seats separately that is connected with hydraulic system is set at the bottom of the post and column cap thereof, middle cross beam, rear cross beam, crossbeam that main supporting traverse and auxilliary supporting traverse are formed and driving two beams that are hinged between the crossbeam are split mutually, close the multi-stage telescopic back timber mechanism that mobile passing hydraulic cylinder constitutes, and in conjunction with meeting top mechanism along beam and elasticity along the common elasticity that constitutes of beam with the perpendicular rigidity of crossbeam, move so be easy to realize the quick push-and-pull between crossbeam and the crossbeam, and form stable support.Each elasticity that is adopted connects the top form along the mixing of beam and the suitable beam of rigidity, makes the utility model remain the good top state that connects in supporting and reach process.The telescopic step-by-step system that is adopted, crossbeam at the device rear portion keeps supporting under the motionless situation, anterior several crossbeams and suitable beam can be followed development machine driving and reach continuously, tunnel about 4 meters continuously at the shielding development machine, when device reaches the maximal dilation state, development machine withdraws from outside the equipment, in workman's access to plant, according to the top board situation, can be at each crossbeam with along below the beam, also can be along with the stepping reach of device, the permanent support operation is carried out in the gap below balance arm, and is safe, strengthen the reasonable operation proportioning in people and machine and tunnel, improved labor productivity.The service condition that meets the driving place immediate support has satisfied underworkings supporting and fully-mechanized digging machine better and has carried out the requirement of supporting operation, significantly improves the supporting quality and the excavation operation efficient of back.This device can significantly improve the development machine Homes Using TV, simultaneously the effective support of back has been improved two stresses of helping and workman's operating environment, has improved the job safety degree of driving face, and the stage that has obtained the fast rapid-result lane of coal road breaks through.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further described.
Fig. 1 is a kind of structural representation of the present utility model;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is the lateral view of Fig. 1;
Fig. 4 is the suitable girder construction schematic diagram of a kind of elasticity among Fig. 1.
Sequence number explanation among the figure: 1 hydraulic vertical prop, 2 pass hydraulic cylinders, 3 balance arm hydraulic cylinders, 4 front beams, 5 middle cross beams, 6 rear cross beams, 7 main supporting traverses, 8 auxilliary supporting traverses, 9 fixedly before guide pin bushing, 10 balance arms, 11 elasticity along elasticity in the beam, 12 along beam, 13 back elasticity along beam, 14 before rigidity along rigidity in the beam, 15 along beam, 16 back rigidity along beam, the suitable beam of 17 limit rigidity, 18 valve group brackets, 19 hydraulic systems, 20 blocks, 21 reset rubber, 22 bases, 23 rigidity casings, 24, leaf spring.
The specific embodiment
Describe concrete structure of the present utility model in detail according to Fig. 1～4.The crossbeam that this telescopic driving immediate support device comprises hydraulic vertical prop 1, supported by the column cap of hydraulic vertical prop 1, be assembled in the component such as suitable beam on the crossbeam.The base 22 independently separately be connected with hydraulic system 19 wherein is set at the bottom of the post of hydraulic vertical prop 1, falls into into base plate to prevent hydraulic vertical prop 1.Hydraulic system 19 is fixed by valve group bracket 18 parts such as grade.Above-mentioned crossbeam comprises front beam 4, middle cross beam 5, rear cross beam 6, main supporting traverse 7 and the auxilliary supporting traverse 8 that is parallel to each other and arranges; Along beam comprise be parallel to each other arrange and with the perpendicular preceding elasticity of each crossbeam along beam 11, middle elasticity along beam 12, back elasticity along beam 13, preceding rigidity along beam 14, middle rigidity along beam 15, back rigidity along beam 16 and limit rigidity along parts such as beams 17.Before elasticity all are the modular constructions that are formed by fixedly connecting by rigidity casing 23 leading portion of making and the back segment of making by layered laminate leaf spring 24 along beam 11, middle elasticity along beam 13 along beam 12, back elasticity.Between front beam 4 and middle cross beam 5, middle cross beam 5 and rear cross beam 6, rear cross beam 6 and the main supporting traverse 7, be hinged with respectively and drive the passing hydraulic cylinder 2 that two beams move relative to opening and closing.Front beam 4 drives the stepping of realization one-level with middle cross beam 5 by passing hydraulic cylinder 2; It is hinged with bearing pin to pass hydraulic cylinder 2 front ends and front beam 4 downsides, passes hydraulic cylinder 2 middle part gudgeons and is fixed between the otic placode of middle cross beam 5 belows with block 20.Middle cross beam 5 drives the stepping of realization secondary with rear cross beam 6 by passing hydraulic cylinder 2; It is hinged with bearing pin to pass hydraulic cylinder 2 front ends and middle cross beam 5 downsides, passes hydraulic cylinder 2 middle part gudgeons and is fixed on rear cross beam 6 belows with block 20.Rear cross beam 6 drives three grades of steppings of realization with main supporting traverse 7 by passing hydraulic cylinder 2.It is hinged with bearing pin to pass hydraulic cylinder 2 front ends and rear cross beam 6 downsides, passes hydraulic cylinder 2 middle part gudgeons and is fixed on main supporting traverse 7 belows with block 20.Main supporting traverse 7 and auxilliary supporting traverse 8 prop up support integral by fixing guide pin bushing 9 hinged formation.
Preceding elasticity is separately fixed on the front beam 4 by U bolt along an end of beam 11 and the suitable beam 14 of preceding rigidity, and the other end is inserted into respectively in the spacing guide pin bushing of middle cross beam 5 tops, and the spacing guide pin bushing above the drive lower edge of front beam 4 middle cross beam 5 moves back and forth; Middle elasticity is separately fixed on the middle cross beam 5 along an end of beam 12 and the suitable beam 15 of middle rigidity, and the other end is inserted into respectively in the spacing guide pin bushing of rear cross beam 6 tops, and the spacing guide pin bushing above the drive lower edge of middle cross beam 5 rear cross beam 6 moves back and forth.Back elasticity is separately fixed on the rear cross beam 6 along an end of beam 16 along beam 13, back rigidity, the other end is inserted into respectively in the fixedly guide pin bushing 9 of main supporting traverse 7 and auxilliary supporting traverse 8 tops, and the fixedly guide pin bushing 9 above the drive lower edge of rear cross beam 6 master's supporting traverse 7 and auxilliary supporting traverse 8 moves back and forth; One end of the suitable beam 17 of limit rigidity is fixed on the end of rear cross beam 6, and the other end is inserted in the spacing guide pin bushing of main supporting traverse 7 and auxilliary supporting traverse 8 tops.Balance when keeping hydraulic vertical prop 1 lifting and be convenient to move, the two ends of front beam 4, middle cross beam 5, rear cross beam 6, main supporting traverse 7 and auxilliary supporting traverse 8 are hinged on the column cap of hydraulic vertical prop 1 by reset rubber 21 and bearing pin respectively.The outside at auxilliary supporting traverse 8 is hinged with balance arm 10, and the below of balance arm 10 links to each other with balance arm hydraulic cylinder 3 one ends, and the other end of balance arm hydraulic cylinder 3 and main supporting traverse 7 are hinged.By the action of balance arm hydraulic cylinder 3, can realize balance arm 10 swinging up and down around pin joint.In use, when balance arm 10 bottoms, anchor net shop can be hung on the balance arm 10, stretch out balance arm hydraulic cylinder 3 then, handle balance arm 10 the anchor net is held up, the workman can fix anchor net and back by permanent support equipment such as anchor pole, anchor cables.
During operation, the boring head of this device at underground tunneling roadway installed, adjust hydraulic vertical prop 1, make main supporting traverse 7 and auxilliary supporting traverse 8 contact and connect real back by fixing guide pin bushing 9, this moment, all passing hydraulic cylinders 2 all were in retracted state, drew close together between front beam 4, middle cross beam 5, rear cross beam 6 and main supporting traverse 7 and the auxilliary supporting traverse 8.Fully-mechanized digging machine is the beginning excavation operation in this device, when tunneling one meter left and right sides, pack up front beam 4, the hydraulic vertical prop 1 of middle cross beam 5 and rear cross beam 6 belows, and manipulation is hinged on the passing hydraulic cylinder 2 between rear cross beam 6 and the main supporting traverse 7, thereby drive front beam 4, middle cross beam 5, rear cross beam 6 and the preceding elasticity on it are along beam 11, middle elasticity is along beam 12, back elasticity is along beam 13, preceding rigidity is along beam 14, middle rigidity is along beam 15, back rigidity is along beam 16 and the suitable beam 17 of limit rigidity, whole moving advanced after one meter, rise front beam 4, the hydraulic vertical prop 1 of middle cross beam 5 and rear cross beam 6 belows carries out temporary lining to the top board above the development machine heading end.When fully-mechanized digging machine continues one meter left and right sides of driving, pack up the hydraulic vertical prop 1 of front beam 4 and middle cross beam 5 belows, and manipulation is hinged on the passing hydraulic cylinder 2 between middle cross beam 5 and the rear cross beam 6, drive front beam 4, middle cross beam 5 and on preceding elasticity along beam 11, middle elasticity along beam 12, preceding rigidity along beam 14 and middle rigidity along beam 15, whole moving advanced after one meter, rise the hydraulic vertical prop 1 of front beam 4 and middle cross beam 5 belows, the top board above the development machine heading end is carried out temporary lining.
In like manner, when fully-mechanized digging machine continues to tunnel one meter left and right sides again, pack up the hydraulic vertical prop 1 of front beam 4 belows, and manipulation is hinged on the passing hydraulic cylinder 2 between front beam 4 and the middle cross beam 5, drive front beam 4 and before elasticity advance after one meter along whole the moving of beam 14 along beam 11 and preceding rigidity, rise the hydraulic vertical prop 1 of front beam 4 belows, the top board above the development machine heading end is carried out temporary lining.After fully-mechanized digging machine tunnels one meter again, shut down and extractor, valve group bracket, roof-bolter and servicing unit thereof are moved on to the position, enter and try to stop people from fighting each other and the anchor pole state is beaten in lapping.Handle and regain balance arm hydraulic cylinder 3, anchor net shop is hung on the balance arm 10,, with balance arm 10 the anchor net is held up, and from the space of balance arm 10, beat anchor pole and do permanent support then by balance arm hydraulic cylinder 3.Accomplish fluently after row's anchor pole, regain balance arm hydraulic cylinder 3 and pack up the hydraulic vertical prop 1 of main supporting traverse 7 and auxilliary supporting traverse 8 belows, and draw by the passing hydraulic cylinder 2 between hinged rear cross beam 6 and the main supporting traverse 7, rise the hydraulic vertical prop 1 of main supporting traverse 7 and auxilliary supporting traverse 8 belows again, roof supporting.Again anchor net shop is hung on the balance arm 10, stretch out balance arm hydraulic cylinder 3 then, and from the space of balance arm 10, beat anchor pole and do permanent support.Accomplish fluently again after row's anchor pole, the same balance arm hydraulic cylinder 3 of regaining, pack up the hydraulic vertical prop 1 of rear cross beam 6, main supporting traverse 7 and auxilliary supporting traverse 8 belows, and draw by connecting the passing hydraulic cylinder 2 between middle cross beam 5 and the rear cross beam 6, again rise the hydraulic vertical prop 1 of rear cross beam 6, main supporting traverse 7 and auxilliary supporting traverse 8 belows, roof supporting.Anchor net shop is hung on the balance arm 10, stretch out balance arm hydraulic cylinder 3 then, and from the space of balance arm 10, beat anchor pole and do permanent support.Pack up the hydraulic vertical prop 1 of middle cross beam 5 and rear cross beam 6 belows, and draw by connecting the passing hydraulic cylinder 2 between front beam 4 and the middle cross beam 5, make the passing hydraulic cylinder 2 between middle cross beam 6 and the main supporting traverse 7 be in the state of stretching out simultaneously, but front beam 4, middle cross beam 5 and rear cross beam 6 are in and receive by state at this moment, rise the hydraulic vertical prop 1 of middle cross beam 5 and rear cross beam 6 belows, roof supporting.Pack up the hydraulic vertical prop 1 of main supporting traverse 7 and auxilliary supporting traverse 8 belows, and draw, rise the hydraulic vertical prop 1 of main supporting traverse 7 and auxilliary supporting traverse 8 belows again, roof supporting by connecting the passing hydraulic cylinder 2 between rear cross beam 6 and the main supporting traverse 7.So far, package unit comes back to initial contraction state, utilizes balance arm 10 lappings to beat after the anchor pole again, and device is finished an excavation operation circulation.
Repeat above-mentioned steps, the backup of this device to boring head, is come back to the driving initial state, fully-mechanized digging machine enters driving and the supporting of meeting head on to begin next circulation.
Claims (4)
1. telescopic driving immediate support device, comprise hydraulic vertical prop, crossbeam by the support of hydraulic vertical prop column cap, be assembled in the suitable beam on the crossbeam, it is characterized in that: the base independently separately be connected with hydraulic system is set at the bottom of the post of described hydraulic vertical prop, described crossbeam comprises the front beam that is parallel to each other and arranges, middle cross beam, rear cross beam, main supporting traverse and auxilliary supporting traverse, described along beam comprise be parallel to each other arrange and with the perpendicular preceding elasticity of described crossbeam along beam, middle elasticity is along beam, back elasticity is along beam, preceding rigidity is along beam, middle rigidity is along beam, back rigidity Shun Liang and limit rigidity are along beam, described front beam and middle cross beam, middle cross beam and rear cross beam, between two beams of rear cross beam and main supporting traverse, being hinged with driving two beams respectively splits mutually, close mobile passing hydraulic cylinder, elasticity Shun Liang and preceding rigidity are separately fixed on the described front beam along an end of beam before described, the other end is inserted into respectively in the spacing guide pin bushing of described middle cross beam top, and the spacing guide pin bushing above the described middle cross beam in the drive lower edge of described front beam moves back and forth; Elasticity Shun Liang and middle rigidity are separately fixed on the described middle cross beam along an end of beam in described, and the other end is inserted into respectively in the spacing guide pin bushing of described rear cross beam top, and the spacing guide pin bushing above the described rear cross beam in the drive lower edge of described middle cross beam moves back and forth; Described back elasticity Shun Liang, back rigidity are separately fixed on the described rear cross beam along an end of beam, the other end is inserted into respectively in the fixedly guide pin bushing of described main supporting traverse and auxilliary supporting traverse top, and the fixedly guide pin bushing above described main supporting traverse in the drive lower edge of described rear cross beam and auxilliary supporting traverse moves back and forth; One end of the suitable beam of described limit rigidity is fixed on the end of described rear cross beam, and the other end is inserted in the spacing guide pin bushing of described main supporting traverse and auxilliary supporting traverse top.
2. telescopic driving immediate support device according to claim 1, it is characterized in that: the two ends of described front beam, middle cross beam, rear cross beam, main supporting traverse and auxilliary supporting traverse are hinged on the column cap of described hydraulic vertical prop by reset rubber and bearing pin respectively.
3. telescopic driving immediate support device according to claim 1 is characterized in that: elasticity Shun Liang, middle elasticity Shun Liang, back elasticity all are the modular constructions that are formed by fixedly connecting by rigid box system leading portion that becomes and the back segment of being made by the layered laminate leaf spring along beam before described.
4. telescopic driving immediate support device according to claim 1 is characterized in that: the described auxilliary supporting traverse outside is hinged with balance arm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200619282U CN201982128U (en) | 2011-03-11 | 2011-03-11 | Immediate support device for retractable tunneling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200619282U CN201982128U (en) | 2011-03-11 | 2011-03-11 | Immediate support device for retractable tunneling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201982128U true CN201982128U (en) | 2011-09-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200619282U Expired - Lifetime CN201982128U (en) | 2011-03-11 | 2011-03-11 | Immediate support device for retractable tunneling |
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| Country | Link |
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| CN (1) | CN201982128U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102121390A (en) * | 2011-03-11 | 2011-07-13 | 辽宁天安矿山科技有限公司 | Telescopic tunneling immediate support device |
| CN103174448A (en) * | 2013-04-15 | 2013-06-26 | 辽宁天安矿山科技有限公司 | In-time supporting method for roadway fully-mechanized excavating operation |
-
2011
- 2011-03-11 CN CN2011200619282U patent/CN201982128U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102121390A (en) * | 2011-03-11 | 2011-07-13 | 辽宁天安矿山科技有限公司 | Telescopic tunneling immediate support device |
| CN103174448A (en) * | 2013-04-15 | 2013-06-26 | 辽宁天安矿山科技有限公司 | In-time supporting method for roadway fully-mechanized excavating operation |
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| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: 113122 Liaoning Province, Fushun City Binhe Road Economic Development Zone No. 15 Patentee after: Liaoning Tian'an Mining Technology Co., Ltd. Address before: Senior officials of Taiwan Street in Dongling District of Shenyang city of Liaoning Province, No. 11 110161 Patentee before: Liaoning Tian'an Mining Technology Co., Ltd. |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20110921 Effective date of abandoning: 20130227 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20110921 Effective date of abandoning: 20130227 |
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| RGAV | Abandon patent right to avoid regrant |