CN203685032U - Pore-forming device for rock pile foundations - Google Patents
Pore-forming device for rock pile foundations Download PDFInfo
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- CN203685032U CN203685032U CN201320793744.4U CN201320793744U CN203685032U CN 203685032 U CN203685032 U CN 203685032U CN 201320793744 U CN201320793744 U CN 201320793744U CN 203685032 U CN203685032 U CN 203685032U
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Abstract
The utility model discloses a pore-forming device for rock pile foundations. The pore-forming device comprises a crawler-type base plate (1), wherein multiple horizontal hydraulic telescopic arms (2) and a hoisting arm (3) are mounted on the crawler-type base plate (1); a rock pore-forming machine main engine (9) is connected onto the horizontal hydraulic telescopic arms (2) and the hoisting arm (3). According to the pore-forming device, rocks are subjected to mechanical pore-forming through the rock pore-forming machine main engine, so that the non-blasting pore-forming is realized; besides, as mechanical and intelligent control is adopted, the personnel are not required to go into the deep of a well, the incidence of casualty accidents is reduced greatly through the non-contact construction, no dado is needed to be built, the formed pores are regular, no concrete is wasted, the pore-forming speed is high, the efficiency is high, and casualty accidents and pneumoconiosis are effectively avoided.
Description
Technical field
The utility model belongs to pile foundation pore-forming equipment technical field, relates to a kind of rock pile foundation pore-forming equipment.
Background technology
When pile foundation drilling construction in rock geology situation adopts hand excavation, excavation always at present, adopt air drill punching explosion, the mode that metal bucket and little hoist engine are slagged tap, hole wall adopts concrete protection, successively explosion to slag tap.But when this rock geology pile foundation pore-forming hand excavation, exist and will use explosive, all there is great risk in the production of the explosives such as detonator, explosive, transportation, storage use, links, easily causes industrial accident.
Simultaneously the in the situation that of hand excavation; the accident such as falling rocks, Kun hole that often has occurs, causes casualties; because hand excavation's mode of slagging tap is to adopt well-bucket to slag tap; often there will be wire cable rupture, well-bucket to fall to pounding personnel in the pit and cause injures and deaths; and along with the increase of the degree of depth; also there will be that anoxic, the explosion smoke of gunpowder do not drain only, toxic and harmful etc. appears in subterranean strata, also often cause casualties.In addition, staff is on and off duty all takes advantage of well-bucket, thereby often occurs that falling accident causes casualties.And dig two meters of left and right under manually digging hole is every and will beat concrete guard wall, manually digging hole can not occur owing to dig, and can only be to backbreak in addition, human-generated explosives precision is difficult control extremely.Therefore the whole industry phenomenon of backbreaking is very serious.Backbreak and beat retaining wall and caused to fill with the super side's phenomenon of when stake concrete very serious, having caused the very large waste of resource.
In addition, manually digging hole efficiency is very low, and with 1.8 meters of diameters, 20 meters of the degree of depth, country rock type is that limestone is example.Two people's combination constructions, speed of fulfiling hole also took about one month, caused the significant wastage of entire society's manpower.Simultaneously owing to adopting air drill punching explosion personnel, the occurrence probability of operation in high dust atmosphere, pneumoconiosis is high for a long time, is engaged in continuously manually digging hole 2 years above, mostly in various degree suffer from pneumoconiosis.
In sum, China's present stage infrastructure scale is very huge, bridge, highrise building etc. all relate to pile foundation construction, and wherein considerable part pile foundation construction is the pile foundation in rock geology situation.Therefore because above reason causes the casualty rate of industry very high, the wasting of resources, inefficiency, pneumoconiosis multiple, has caused the phenomenon such as waste of manpower very outstanding simultaneously because personnel are intensive.Therefore, the construction technology of manually digging hole is badly in need of improving.
Utility model content
The utility model is in order to solve the problems of the technologies described above, a kind of non-explosion pore-forming is provided, the rock pile foundation pore-forming equipment of mechanization, Based Intelligent Control, this equipment personnel need not go into the well, contactless construction, greatly reduce the generation of casualty accident, need not beat retaining wall, pore-forming rule, not waste concrete, speed of fulfiling hole is fast, efficiency is high, has effectively avoided the generation of casualty accident and pneumoconiosis.
The utility model is to be achieved through the following technical solutions:
A kind of rock pile foundation pore-forming equipment, comprises caterpillar chassis, and multiple horizontal hydraulic pressure telescopic arms and lifting arm are installed on described caterpillar chassis, is connected with rock hole forming machine main frame on horizontal hydraulic pressure telescopic arm and lifting arm.
Described rock hole forming machine main frame comprises master control computer, rock hole forming machine host shell and is arranged on main motor, hydraulic pressure main pump, multiple hydraulic impactor, power distribution cabinet, PLC intelligence control system, cable bus, hydraulic motor, driving gear set, the broken piece installing of the large cutterhead fixed cover of rock, slag absorbing system and the broken rock device in rock hole forming machine host shell;
Rock hole forming machine host shell inner bottom concentric is provided with brokenly the piece installing of the large cutterhead fixed cover of rock, described broken rock large cutterhead fixed cover piece installing internal sleeve is equipped with brokenly rock device, in described broken rock large cutterhead fixed cover piece installing and the large cutterhead of broken rock, slag absorbing system is installed, the broken large cutterhead fixed cover piece installing of rock outside is provided with driving gear set, is connected with hydraulic motor in driving gear set; Main motor is connected with hydraulic pressure main pump, hydraulic pressure main pump is connected respectively at hydraulic motor and multiple hydraulic impactor, described hydraulic impactor is installed and is broken rock device top, described cable bus one end is connected on the master control computer and external power supply outside rock hole forming machine host shell, the other end is connected with power distribution cabinet respectively at PLC intelligence control system, PLC intelligence control system is connected respectively at slag absorbing system, hydraulic impactor, main motor and hydraulic pressure main pump, and external power supply is connected with main motor, PLC intelligence control system, slag absorbing system by switchbox.
Described broken rock device comprises the large cutterhead of broken rock that is installed on brokenly the large cutterhead fixed cover piece installing of rock inside, on the described large cutterhead of broken rock, by back-moving spring, pick base is installed, on described pick base, alloy pick is installed, described pick base top is provided with hydraulic impactor, on the described large cutterhead of broken rock, the hobboing cutter with buffer damping is housed.
Described slag absorbing system comprises that concentric is sleeved on brokenly the rotation slag suction mouth of rock large cutterhead fixed cover piece installing and the large cutterhead of broken rock inside, the top of rotating slag suction mouth is connected with the supervisor that slags tap by residue outlet loose joint, slag tap supervisor upper end be connected with the flexible pipe of slagging tap, slag tap supervisor sidewall be provided with multiple blower fans.
On the described supervisor's sidewall of slagging tap, be disposed with from top to bottom one-level blower fan, secondary blower fan and force 3 wind machine.
On the described flexible pipe of slagging tap, be also provided with dust filtering device.
Described rotation slag suction mouth is shaped as " L " type, and " L " type rotation slag suction mouth horizontal component length is identical with the radius of the large cutterhead of broken rock, and is positioned at same level with the large cutterhead of broken rock.
On described rock hole forming machine host shell sidewall, be also provided with multiple regulation and control wheels, on multiple regulation and control wheels, be connected with respectively hydraulic arm, multiple hydraulic arms are also connected with PLC intelligence control system with hydraulic pressure main pump, rock hole forming machine host shell inside is also provided with the gyroscope for measuring rock hole forming machine main frame verticality, and described gyroscope is connected with master control computer.
In described rock hole forming machine host shell, be also provided with and detect the gas probe of toxic gas and the alarm that toxic gas is reported to the police, described alarm is also connected with PLC intelligence control system, and described gas probe is connected with master control computer.
Compared with prior art, the utlity model has following useful technique effect:
The utility model provides a kind of rock pile foundation pore-forming equipment, and this equipment carries out mechanization pore-forming by rock hole forming machine main frame is installed to rock, has realized non-explosion pore-forming; Mechanization simultaneously, the Based Intelligent Control personnel of having realized need not go into the well, and contactless construction, greatly reduces the generation of casualty accident, need not beat retaining wall, pore-forming rule, not waste concrete, speed of fulfiling hole is fast, efficiency is high, has effectively avoided the generation of casualty accident and pneumoconiosis.
This equipment is by arranging brokenly rock device and dreg inhaling device etc., PLC intelligence control system is connected with slag absorbing system, hydraulic impactor etc. simultaneously, mechanization, intelligent pore-forming are realized, avoid using manpower to dig a harm causing and the waste to manpower, and by being set, gyroscope can automatically record the verticality of rock hole forming machine main frame, and by PLC intelligence control system control hydraulic arm, hydraulic arm drives regulation and control wheel to adjust the verticality of rock hole forming machine main frame, controls the precision of piling.
Meanwhile, on the described flexible pipe of slagging tap, be provided with dust filtering device, the rock of discharge and rock dust can be carried out effectively reclaiming and having placed the injury that dust causes human respiratory tract, avoided the generation of pneumoconiosis.
In addition, by rock hole forming machine host shell, arrange gas probe and alarm realized rock pile foundation in the fast detecting of toxic gas, the harm of having avoided toxic gas to produce human body.
Accompanying drawing explanation
The rock pile foundation pore-forming equipment lifting schematic diagram that Fig. 1 provides for the utility model;
The sectional structure schematic diagram of the rock hole forming machine main frame in the rock pile foundation pore-forming equipment that Fig. 2 provides for the utility model.
Wherein, 1 is caterpillar chassis; 2 is horizontal hydraulic pressure telescopic arm; 3 is lifting arm; 4 is regulation and control wheel; 5 is residue outlet; 6 is lifting-steel-rope; 7 is master control computer; 8 is the broken large cutterhead of rock; 9 is rock hole forming machine main frame; 10 is cable bus; 11 is hydraulic arm; 12 is one-level blower fan; 13 is power distribution cabinet; 14 is PLC intelligence control system; 15 is secondary blower fan; 16 is gas probe; 17 is force 3 wind machine; 18 is hydraulic motor; 19 is driving gear set; 20 is hobboing cutter; 21 is alloy pick; 22 is back-moving spring; 23 is buffer damping; 24 is hydraulic impactor; 25 is residue outlet loose joint; 26 is main motor; 27 is hydraulic pressure main pump; 28 is the supervisor that slags tap; 29 is the flexible pipe of slagging tap; 30 for rotating slag suction mouth; 31 is the broken large cutterhead fixed cover of rock piece installing.
The specific embodiment
Below in conjunction with specific embodiment, the utility model is described in further detail, described in be to explanation of the present utility model rather than restriction.
Referring to Fig. 1, Fig. 2, a kind of rock pile foundation pore-forming equipment, is characterized in that, comprises caterpillar chassis 1, multiple horizontal hydraulic pressure telescopic arms 2 and lifting arm 3 are installed on described caterpillar chassis 1, on horizontal hydraulic pressure telescopic arm 2 and lifting arm 3, are connected with rock hole forming machine main frame 9.
Described rock hole forming machine main frame 9 comprises master control computer 7, rock hole forming machine host shell and is arranged on main motor 26, hydraulic pressure main pump 27, multiple hydraulic impactor 24, power distribution cabinet 13, PLC intelligence control system 14, cable bus 10, hydraulic motor 18, driving gear set 19, the broken large cutterhead fixed cover of rock piece installing 31, slag absorbing system and the broken rock device in rock hole forming machine host shell;
Rock hole forming machine host shell inner bottom concentric is provided with brokenly the large cutterhead fixed cover of rock piece installing 31, the described large cutterhead fixed cover of broken rock piece installing 31 internal sleeve are equipped with brokenly rock device, described broken rock device comprises the large cutterhead 8 of broken rock that is installed on brokenly the large cutterhead fixed cover of rock piece installing 31 inside, on the large cutterhead 8 of described broken rock, by back-moving spring 22, mobilizable pick base is installed, on described pick base, alloy pick 21 is installed, described pick base top is provided with hydraulic impactor 24, on the large cutterhead 8 of described broken rock, the hobboing cutter 20 with buffer damping 23 is housed.
In the piece installing 31 of the large cutterhead fixed cover of described broken rock and the large cutterhead 8 of broken rock, slag absorbing system is installed, described slag absorbing system comprises that concentric is sleeved on brokenly the rotation slag suction mouth 30 that can rotate with cutterhead of the piece installing 31 of the large cutterhead fixed cover of rock and the large cutterhead of broken rock 8 inside, the top of rotating slag suction mouth 30 is connected with the supervisor 28 that slags tap by residue outlet loose joint 25, supervisor 28 upper ends of slagging tap are connected with the flexible pipe 29 of slagging tap, and the supervisor that slags tap is provided with one-level blower fan 12, secondary blower fan 15 and force 3 wind machine 17 on 28 sidewalls from top to bottom successively.On the described flexible pipe 29 of slagging tap, be also provided with dust filtering device, prevented the injury that dust causes staff's health.Described rotation slag suction mouth 30 is shaped as " L " type, " L " type rotation slag suction mouth 30 horizontal component length are identical with the radius of the large cutterhead 8 of broken rock, and be positioned at same level with the large cutterhead 8 of broken rock, there is the opening of slag absorbing simultaneously, rotate the slag absorbing of assigning to of slag suction mouth 30 horizontal parts by " L " type, the rock slag of absorption is from L " type rotates the vertical component of slag suction mouth 30 and slag tap supervisor 28 and the flexible pipe 29 of slagging tap are got rid of shaft bottom.
The described large cutterhead fixed cover of broken rock piece installing 31 outsides are provided with driving gear set 19, are connected with hydraulic motor 18 in driving gear set 19, main motor 26 is connected with hydraulic pressure main pump 27, hydraulic pressure main pump 27 is connected respectively at hydraulic motor 18 and multiple hydraulic impactor 24, described cable bus 10 one end are connected on the master control computer 7 and external power supply outside rock hole forming machine host shell, the other end is connected with power distribution cabinet 13 respectively at PLC intelligence control system 14, PLC intelligence control system 14 is respectively at one-level blower fan 12, secondary blower fan 15, force 3 wind machine 17, hydraulic impactor 24, main motor 26 is connected with hydraulic pressure main pump 27, external power supply is by switchbox 13 and main motor 26, PLC intelligence control system 14, one-level blower fan 12, secondary blower fan 15, force 3 wind machine 17 is connected.
On described rock hole forming machine host shell sidewall, be also provided with multiple regulation and control wheels 4, on multiple regulation and control wheels 4, be connected with respectively hydraulic arm 11, multiple hydraulic arms 11 are also connected with PLC intelligence control system 14 with hydraulic pressure main pump 27, rock hole forming machine host shell inside is also provided with the gyroscope for measuring rock hole forming machine main frame verticality, and described gyroscope is connected with master control computer 7.
In described rock hole forming machine host shell, be also provided with and detect the gas probe of toxic gas and the alarm that toxic gas is reported to the police, described alarm is also connected with PLC intelligence control system 14, and described gas probe is connected with master control computer 7.
Operating principle of the present utility model:
This equipment is that frame is on caterpillar chassis 1 in the time of non-job state, instrument when caterpillar chassis is walked as it, in the time arriving setting, by horizontal hydraulic pressure telescopic arm 2, this equipment is holded up, and adjust attitude, external power supply is connected, and master control computer 7 is debugged after each system mode, and equipment is started working.In device body, main motor 26 drives hydraulic pressure main pump 27, hydraulic pressure main pump 27 drives hydraulic motor 18, hydraulic motor 18 drives driving gear set 19 to rotate, driving gear set 19 drives the broken large cutterhead 8 of rock to rotate after rotating, when the broken large cutterhead 8 of rock rotates, hydraulic impactor 24 starts to impact alloy pick base, alloy pick on pick base breaks up rock 21 times, after broken rock completes, under back-moving spring 22 effects, pick base is automatically up, alloy pick 21 leaves work plane to reduce friction, the broken large cutterhead 8 of rock is rotated further, start one-level blower fan 12, rotate slag suction mouth 30 and start slag absorbing, along with the propelling of work, the degree of depth increases, equipment is automatically downward under Action of Gravity Field, when to horizontal hydraulic pressure telescopic arm 2 position, horizontal hydraulic pressure telescopic arm 2 separates with rock hole forming machine main frame 9, rock hole forming machine main frame 9 continues descending.When horizontal hydraulic pressure telescopic arm 2 separates completely with rock hole forming machine main frame 9, start regulation and control wheel 4, rock hole forming machine main frame 9 enters automation state of a control, its attitude is detected at any time by the gyroscope of rock hole forming machine main frame 9 inside, its parameter is also inputted master control computer 7, master control computer 7 according to parameter input command to PLC intelligence control system 14, PLC intelligence control system 14 is flexible according to parameter control hydraulic arm 11, hydraulic arm 11 drives regulation and control wheel 4 to adjust rock hole forming machine main frame 9 attitudes, reaction force to rock hole forming machine main frame 9 body upper ends always when regulation and control wheel 4 withstands the borehole wall and rotates to offset brokenly the large cutterhead 8 of rock, all longitudinal arrangements of regulation and control wheel 4, so not affected by it in the time of rock hole forming machine main frame 9 Automatic-descending, rotate slag suction mouth 30 rotates together with the large cutterhead 8 of broken rock, its length is broken large cutterhead 8 radiuses of rock, to break the large cutterhead of rock 8 centers of circle as starting point, radius length is its installation site, in the time that the large cutterhead 8 of broken rock rotates one week, just in time the slag stone on whole section is blotted only, when the degree of depth is constantly deepened, master control computer 7 starts secondary and force 3 wind machine according to going out the quantity of slag, to strengthen slag suction mouth suction, in the time there is toxic and harmful in section, information is passed to master control computer 7 by gas sensing probe on equipment, whether master control computer 7 judges whether to continue operation and reports to the police and send instructions to PLC intelligence control system, the flexible pipe port of slagging tap is provided with dust filtering device meet the requirement of environmental protection.In the time that the degree of depth reaches design standard, master control computer sends instructions and stops operation.The broken large cutterhead 8 of rock stops operating, and hydraulic impactor 24 stops impacting, and the blower fan of slagging tap stops operating.Regulation and control wheel 4 shrinks, and now caterpillar chassis 1 is opened near well head, by lifting-steel-rope 6, rock hole forming machine main frame is hung out, and is again connected with horizontal hydraulic pressure telescopic arm, and close at caterpillar chassis 1 top, the end of job.
This equipment can be realized non-explosion pore-forming, mechanization, the Based Intelligent Control personnel of having realized need not go into the well, contactless construction, greatly reduce the generation of casualty accident, need not beat retaining wall, pore-forming rule, not waste concrete, speed of fulfiling hole is fast, efficiency is high, has effectively avoided the generation of casualty accident and pneumoconiosis.
More than show and described basic principle of the present utility model and principal character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that in above-described embodiment and manual, describes just illustrates principle of the present utility model; do not departing under the prerequisite of the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (9)
1. a rock pile foundation pore-forming equipment, it is characterized in that, comprise caterpillar chassis (1), multiple horizontal hydraulic pressure telescopic arms (2) and lifting arm (3) are installed on described caterpillar chassis (1), on horizontal hydraulic pressure telescopic arm (2) and lifting arm (3), are connected with rock hole forming machine main frame (9).
2. rock pile foundation pore-forming equipment according to claim 1, it is characterized in that, described rock hole forming machine main frame (9) comprises master control computer (7), rock hole forming machine host shell and be arranged on the main motor (26) in rock hole forming machine host shell, hydraulic pressure main pump (27), multiple hydraulic impactors (24), power distribution cabinet (13), PLC intelligence control system (14), cable bus (10), hydraulic motor (18), driving gear set (19), the broken large cutterhead fixed cover of rock piece installing (31), slag absorbing system and broken rock device,
Rock hole forming machine host shell inner bottom concentric is provided with brokenly the large cutterhead fixed cover of rock piece installing (31), the described large cutterhead fixed cover of broken rock piece installing (31) internal sleeve is equipped with brokenly rock device, in described broken rock large cutterhead fixed cover piece installing (31) and the large cutterhead of broken rock (8), slag absorbing system is installed, the broken large cutterhead fixed cover of rock piece installing (31) outside is provided with driving gear set (19), is connected with hydraulic motor (18) in driving gear set (19), main motor (26) is connected with hydraulic pressure main pump (27), hydraulic pressure main pump (27) is connected respectively at hydraulic motor (18) and multiple hydraulic impactor (24), described hydraulic impactor (24) is installed and broken rock device top, described cable bus (10) one end is connected on the master control computer (7) and external power supply outside rock hole forming machine host shell, the other end is connected with power distribution cabinet (13) respectively at PLC intelligence control system (14), PLC intelligence control system (14) is respectively at slag absorbing system, hydraulic impactor (24), main motor (26) is connected with hydraulic pressure main pump (27), external power supply is by switchbox (13) and main motor (26), PLC intelligence control system (14), slag absorbing system is connected.
3. rock pile foundation pore-forming equipment according to claim 2, it is characterized in that, described broken rock device comprises the large cutterhead of broken rock (8) that is installed on brokenly the large cutterhead fixed cover of rock piece installing (31) inside, the described large cutterhead of broken rock (8) is upper is provided with pick base by back-moving spring (22), alloy pick (21) is installed on described pick base, described pick base top is provided with hydraulic impactor (24), and the hobboing cutter (20) with buffer damping (23) is housed on the described large cutterhead of broken rock (8).
4. according to the rock pile foundation pore-forming equipment described in claim 2 or 3, it is characterized in that, described slag absorbing system comprises that concentric is sleeved on brokenly the large cutterhead fixed cover of rock piece installing (31) and the inner rotation slag suction mouth (30) of the large cutterhead of broken rock (8), the top of rotating slag suction mouth (30) is connected with the supervisor (28) that slags tap by residue outlet loose joint (25), supervisor (28) upper end of slagging tap is connected with the flexible pipe of slagging tap (29), and supervisor (28) sidewall of slagging tap is provided with multiple blower fans.
5. rock pile foundation pore-forming equipment according to claim 4, it is characterized in that, on described supervisor (28) sidewall of slagging tap, be disposed with from top to bottom one-level blower fan (12), secondary blower fan (15) and force 3 wind machine (17).
6. rock pile foundation pore-forming equipment according to claim 4, is characterized in that, on the described flexible pipe of slagging tap (29), is also provided with dust filtering device.
7. rock pile foundation pore-forming equipment according to claim 4, it is characterized in that, described rotation slag suction mouth (30) is shaped as " L " type, " L " type rotation slag suction mouth (30) horizontal component length is identical with the radius of the large cutterhead of broken rock (8), and is positioned at same level with the large cutterhead of broken rock (8).
8. rock pile foundation pore-forming equipment according to claim 2, it is characterized in that, on described rock hole forming machine host shell sidewall, be also provided with multiple regulation and control wheels (4), on multiple regulation and control wheels (4), be connected with respectively hydraulic arm (11), multiple hydraulic arms (11) are also connected with PLC intelligence control system (14) with hydraulic pressure main pump (27), rock hole forming machine host shell inside is also provided with the gyroscope for measuring rock hole forming machine main frame verticality, and described gyroscope is connected with master control computer (7).
9. rock pile foundation pore-forming equipment according to claim 2, it is characterized in that, in described rock hole forming machine host shell, be also provided with and detect the gas probe of toxic gas and the alarm that toxic gas is reported to the police, described alarm is also connected with PLC intelligence control system (14), and described gas probe is connected with master control computer (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320793744.4U CN203685032U (en) | 2013-12-06 | 2013-12-06 | Pore-forming device for rock pile foundations |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320793744.4U CN203685032U (en) | 2013-12-06 | 2013-12-06 | Pore-forming device for rock pile foundations |
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| Publication Number | Publication Date |
|---|---|
| CN203685032U true CN203685032U (en) | 2014-07-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320793744.4U Expired - Fee Related CN203685032U (en) | 2013-12-06 | 2013-12-06 | Pore-forming device for rock pile foundations |
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| CN (1) | CN203685032U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103670274A (en) * | 2013-12-06 | 2014-03-26 | 刘浩奎 | Rock pile foundation pore-forming device |
| CN106988361A (en) * | 2017-03-20 | 2017-07-28 | 刘惠军 | Pick machine is repaiied in a kind of square hole stake |
-
2013
- 2013-12-06 CN CN201320793744.4U patent/CN203685032U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103670274A (en) * | 2013-12-06 | 2014-03-26 | 刘浩奎 | Rock pile foundation pore-forming device |
| CN106988361A (en) * | 2017-03-20 | 2017-07-28 | 刘惠军 | Pick machine is repaiied in a kind of square hole stake |
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140702 Termination date: 20141206 |
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| EXPY | Termination of patent right or utility model |