CN102864942B - Manufacturing method for security protective cover - Google Patents
Manufacturing method for security protective cover Download PDFInfo
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- CN102864942B CN102864942B CN201210286460.6A CN201210286460A CN102864942B CN 102864942 B CN102864942 B CN 102864942B CN 201210286460 A CN201210286460 A CN 201210286460A CN 102864942 B CN102864942 B CN 102864942B
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- protecting cover
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- 230000001681 protective effect Effects 0.000 title claims abstract description 36
- 238000004519 manufacturing process Methods 0.000 title claims abstract 5
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 122
- 239000010959 steel Substances 0.000 claims abstract description 122
- 238000010276 construction Methods 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims abstract description 10
- 238000003466 welding Methods 0.000 claims abstract description 10
- 230000003014 reinforcing effect Effects 0.000 claims description 18
- 239000011324 bead Substances 0.000 claims description 6
- 238000002360 preparation method Methods 0.000 claims description 6
- 230000002787 reinforcement Effects 0.000 claims description 3
- 238000003754 machining Methods 0.000 abstract 1
- 230000009286 beneficial effect Effects 0.000 description 5
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 3
- 238000009412 basement excavation Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Abstract
The invention relates to a protective appliance special for ensuring the life security of underground work personnel in the construction processes of manually boring and filling a pile, in particular to a manufacturing method for a security protective cover. The manufacturing method for the security protective cover comprises a support frame and a protective cover plate arranged on the upper part of the support frame, wherein the protective cover plate comprises a first protective cover and a second protective cover; the first protective cover is connected with the second protective cover through a movable connecting piece; and the manufacturing method for the security protective cover opened and closed by the first protective cover or the second protective cover through the movable connecting piece comprises the following steps of: machining a plain round bar into a reinforced steel ring, wherein the joints are not closed by welding temporarily; finally, welding a small reinforced steel circular ring at one end of a reinforced steel frame and one end of a steel plate welded to the cover plate and tying a pull rope of a top cover, wherein the pull rope of the top cover is connected to a fixed device on a channel steel support after passing through a pulley; and the security protective cover is manufactured. The security protective cover is easy to machine and low in cost; people can be prevented from being injured by falling objects in the construction processes of manually boring and filling the file effectively; and a respected security protection aim can be fulfilled.
Description
Technical field
The present invention relates to a kind of special protection apparatus guaranteeing underground operators life security in construction of manual-excavation cast-in-place pile process and preparation method thereof, especially relate to a kind of preparation method of safty shield.
Background technology
Hand excavated pile is modal a kind of foundation structure type, and its degree of depth determines shallow to only have several meters according to geological conditions, dark reaches tens of rice.According to geological condition, concrete or steel retaining wall generally can be adopted to carry out supporting to well stake, prevent cave-in accident.But it is but without the reliable precautionary measures that object hits, hand excavated pile when muck removal because of steel cable break, the reason such as hoist engine brake failure, manual operation are improper, frequent generation lifting thing drops casualty accident, the particularly cutting depth of water conservancy and hydropower vertical shaft pilot tunnel comparatively dark (the general degree of depth is 30 ~ 40m), such potential safety hazard is just larger.
Summary of the invention
For the shortcoming of prior art, the invention provides a kind of preparation method of safty shield.
For solving the problems of the technologies described above, the technical solution used in the present invention is:
A kind of safty shield, comprise bracing frame and be arranged at the protective cover plate on bracing frame top, described protective cover plate comprises the first protecting cover, the second protecting cover, first protecting cover is connected by active connection with the second protecting cover, first protecting cover or the second protecting cover are opened and closedown by active connection, described protective cover plate also comprises an outer ring, and outer ring is arranged at the periphery that described first protecting cover and the second protecting cover are formed;
Step 1: it is steel ring that a plain bar is processed into diameter, joint wouldn't welded closed;
Step 2: 3 channel-section steels are made a call to a screw every 10cm from termination, 5 screws made a call to by every root channel-section steel.And weld the thick steel plate feet of 1 piece of 1mm at the other end of these 3 channel-section steels;
Step 3: 3 channel-section steels are made a call to a screw every 10cm from termination, 5 screws made a call to by every root channel-section steel.And make at the other end of these 3 channel-section steels the circular hole that a diameter is 3cm;
Step 4: two kinds of channel-section steels are screwed connection by the screw beaten above, and height is adjusted according to practice of construction condition;
Step 5: steel ring step 1 processed is processed from step 3: pass in the circular hole of steel, and guarantee that channel-section steel can rotate around plain bar.Then the weld of steel ring is firm, make it close.Be evenly distributed on steel ring by 3 channel-section steels afterwards, on the steel ring of every root channel-section steel the right and left, then weld a reinforced steel bar ring respectively apart from channel-section steel 1cm, its Main Function horizontally slips for making 3 channel-section steels steel ring that has some setbacks, but does not affect channel-section steel and rotate up and down around steel ring;
Step 6: process in step 3: steel welds the long steel pipe of a 100cm apart from steel ring 20cm near steel ring one end, the angle between steel pipe and channel-section steel is 15 °, and installs a pulley at the other end of steel pipe;
Step 7: welding 3 plain bars on the plain bar that 1 70cm is long, it is perpendicular that the first root bead is connected on end, and the second root bead is connected on apart from first 25cm place parallel with first, and the 3rd is parallel with second with being welded on apart from second 25cm place;
Step 8: to process one piece of diameter be 90cm thickness is the round plate of 1.2mm, and this round plate is drawn bar straight line, and straight line is 20cm apart from the vertical distance at round plate edge, along this straight line, round plate is cut into 2 pieces;
Step 9: at steel ring by being welded with steel pipe channel-section steel and welding perpendicular to this channel-section steel, left and right, distance channel-section steel horizontal range 20cm place the reinforcing bar annulus that a diameter is 5cm respectively;
Step 10: first reinforcing bar of reinforced frame step 6 processed injects in the reinforcing bar annulus in step 9, again the relatively large round plate of processing in step 8 is covered on reinforced frame, make them symmetrical, the part that steel plate overlaps with the reinforcing bar annulus in step 9 is cut away, then by Plate Welding on reinforced frame, and can rotate up and down around reinforcing bar circle ring center after guaranteeing reinforced frame and Plate Welding, and by the other end of the welded reinforcement annulus of fritter;
Step 11: weld a little reinforcing bar annulus in cover plate one end of reinforced frame and Plate Welding, and fasten top cover stay cord, lid stay cord, by being connected in the fastening devices on channel steel support after pulley, is finally made into a kind of safty shield.
As improvement, described protective cover plate is cone-shaped, and its opening direction is towards workman's construction direction.Because hand excavated pile excavation size is less, so protective cover is made into cone-shaped, is so both beneficial to the stable of device, turn increases the ability that it bears weight, and the daylighting be beneficial in well and ventilation, ensure the safety and health of construction worker.
Preferably, described active connection is hinge, draws materials conveniently, makes simple, reliable operation.
Alternatively, described first protecting cover is fixed cap, and the second protecting cover is removable cover, and described second protecting cover is connected with stay cord, and the second protecting cover is opened and closedown by the realization that pulls of stay cord.
Preferably, described first protecting cover and/or the second protecting cover are steel plate.
Preferably, support frame as described above is means for supporting reinforcement steel bar.Means for supporting reinforcement steel bar has certain intensity, rigidity and bearing capacity, and the time providing security protection and enforcement rescue for stranded workman ensures.
Compared with prior art, the invention has the beneficial effects as follows:
Security protection cover structure of the present invention is simple; comprise bracing frame and be arranged at the protective cover plate on bracing frame top; its protective cover plate comprises the first protecting cover, the second protecting cover; first protecting cover is connected by active connection with the second protecting cover; first protecting cover or the second protecting cover are opened and closedown by active connection; this safty shield handling ease and cost is low, effectively can avoid the junk in manual digging pile construction process to hurt sb.'s feelings, can reach the safeguard protection target of expection.
Accompanying drawing explanation
Fig. 1 is the using state figure of safty shield of the present invention;
Fig. 2 is part A structure for amplifying schematic diagram in Fig. 1;
Fig. 3 is the structural representation of protective cover plate.
Detailed description of the invention
Below in conjunction with Concrete facts mode, the present invention is further illustrated.
Be the embodiment of safty shield of the present invention as shown in Figure 1 to Figure 3, comprise bracing frame 10 and be arranged at the protective cover plate 20 on bracing frame 10 top, protective cover plate comprises the first protecting cover, the second protecting cover, first protecting cover is connected by active connection 203 with the second protecting cover, and the first protecting cover or the second protecting cover are opened and closedown by active connection 203.Wherein, active connection 203 is hinge; First protecting cover and the second protecting cover are steel plate; Bracing frame 10 is means for supporting reinforcement steel bar; Protective cover plate 20 also comprises an outer ring 204, and outer ring 204 is arranged at the periphery that the first protecting cover and the second protecting cover are formed.Step 1: it is steel ring that a plain bar is processed into diameter, joint wouldn't welded closed;
Step 2: 3 channel-section steels are made a call to a screw every 10cm from termination, 5 screws made a call to by every root channel-section steel.And weld the thick steel plate feet of 1 piece of 1mm at the other end of these 3 channel-section steels;
Step 3: 3 channel-section steels are made a call to a screw every 10cm from termination, 5 screws made a call to by every root channel-section steel.And make at the other end of these 3 channel-section steels the circular hole that a diameter is 3cm;
Step 4: two kinds of channel-section steels are screwed connection by the screw beaten above, and height is adjusted according to practice of construction condition;
Step 5: steel ring step 1 processed is processed from step 3: pass in the circular hole of steel, and guarantee that channel-section steel can rotate around plain bar.Then the weld of steel ring is firm, make it close.Be evenly distributed on steel ring by 3 channel-section steels afterwards, on the steel ring of every root channel-section steel the right and left, then weld a reinforced steel bar ring respectively apart from channel-section steel 1cm, its Main Function horizontally slips for making 3 channel-section steels steel ring that has some setbacks, but does not affect channel-section steel and rotate up and down around steel ring;
Step 6: process in step 3: steel welds the long steel pipe of a 100cm apart from steel ring 20cm near steel ring one end, the angle between steel pipe and channel-section steel is 15 °, and installs a pulley at the other end of steel pipe;
Step 7: welding 3 plain bars on the plain bar that 1 70cm is long, it is perpendicular that the first root bead is connected on end, and the second root bead is connected on apart from first 25cm place parallel with first, and the 3rd is parallel with second with being welded on apart from second 25cm place;
Step 8: to process one piece of diameter be 90cm thickness is the round plate of 1.2mm, and this round plate is drawn bar straight line, and straight line is 20cm apart from the vertical distance at round plate edge, along this straight line, round plate is cut into 2 pieces;
Step 9: at steel ring by being welded with steel pipe channel-section steel and welding perpendicular to this channel-section steel, left and right, distance channel-section steel horizontal range 20cm place the reinforcing bar annulus that a diameter is 5cm respectively;
Step 10: first reinforcing bar of reinforced frame step 6 processed injects in the reinforcing bar annulus in step 9, again the relatively large round plate of processing in step 8 is covered on reinforced frame, make them symmetrical, the part that steel plate overlaps with the reinforcing bar annulus in step 9 is cut away, then by Plate Welding on reinforced frame, and can rotate up and down around reinforcing bar circle ring center after guaranteeing reinforced frame and Plate Welding, and by the other end of the welded reinforcement annulus of fritter;
Step 11: weld a little reinforcing bar annulus in cover plate one end of reinforced frame and Plate Welding, and fasten top cover stay cord, lid stay cord, by being connected in the fastening devices on channel steel support after pulley, is finally made into a kind of safty shield.
The bracing frame of the present embodiment is channel-section steel.
In order to increase stability and the weight capacity of device, protective cover plate 20 is made into cone-shaped, its opening direction is towards workman's construction direction.Because hand excavated pile excavation size is less, so protective cover is made into cone-shaped, is so both beneficial to the stable of device, turn increases the ability that it bears weight, and the daylighting be beneficial in well and ventilation, ensure the safety and health of construction worker.
In the present embodiment, the first protecting cover is fixed cap 201, and the second protecting cover is removable cover 202, and the second protecting cover is connected with stay cord 2, and the second protecting cover is opened and closedown by the realization that pulls of stay cord 2.
During actual use, the operating procedure of this safty shield is as follows:
1, smoke evacuation of blowing out terminates rear hoist engine, by steel cable 1, protective cover is hung in shaft bottom;
2, operating personnel adjust protective cover after putting in place, are pulled open by removable cover 202 and fix stay cord 3, and in the present embodiment, stay cord 3 is connected by pulley 6 with stay cord 2;
3, hanging basket 4(be cut bucket) hang in well by hoist engine, in decline by downhole operations personnel by lower stay cord 5 control hanging basket 4(be cut bucket) descent direction, in case bump against the borehole wall;
4, notify that aboveground personnel start lifting with Walkie talkie after filling quarrel, when hanging basket 4 exceed protective cover plate 20 do not hinder stay cord time, stay cord 3 unclamps and closes removable cover 202 by downhole operations personnel, if removable cover 202 is not easily closed and thereunder can be fastened rope and carry out reverse drawing closedown;
5, also can rectify a deviation with lower stay cord 5 in lifting;
6, unload the complete aboveground operating personnel of quarrel and notify that personnel in the pit opens removable cover 202 with Walkie talkie, enter next circulation.
This security protection cover structure is simple; comprise bracing frame 10 and be arranged at the protective cover plate 20 on bracing frame 10 top; its protective cover plate 20 comprises the first protecting cover, the second protecting cover; first protecting cover is connected by active connection 203 with the second protecting cover; first protecting cover or the second protecting cover are opened and closedown by active connection 202; this safty shield handling ease and cost is low, effectively can avoid the junk in manual digging pile construction process to hurt sb.'s feelings, can reach the safeguard protection target of expection.
Claims (2)
1. the preparation method of a safty shield, it is characterized in that: described safty shield comprises bracing frame and is arranged at the protective cover plate (20) on bracing frame (10) top, described protective cover plate (20) comprises the first protecting cover (201), second protecting cover (202), first protecting cover (201) is connected by active connection (203) with the second protecting cover (202), first protecting cover (201) or the second protecting cover (202) are opened and closedown by active connection (203), described protective cover plate (20) also comprises an outer ring (204), outer ring (204) is arranged at the periphery that described first protecting cover (201) is formed with the second protecting cover (202),
Making step is as follows:
Step 1 a: plain bar is processed into steel ring, joint wouldn't welded closed;
Step 2: three channel-section steels are made a call to a screw every 10cm from termination, 5 screws made a call to by every root channel-section steel, and weld the thick steel plate feet of 1 piece of 1mm at the other end of these three channel-section steels;
Step 3: three channel-section steels are made a call to a screw every 10cm from termination, five screws made a call to by every root channel-section steel, and manufacture at the other end of these three channel-section steels the circular hole that a diameter is 3cm;
Step 4: two kinds of channel-section steels are screwed connection by the screw beaten above, and height is adjusted according to practice of construction condition;
Step 5: pass in the circular hole of the channel-section steel that steel ring step 1 processed is processed from step 3, and guarantee that channel-section steel can rotate around plain bar, then by firm for the weld of steel ring, make it close, afterwards three channel-section steels are evenly distributed on steel ring, then on the steel ring of every root channel-section steel the right and left, weld a reinforced steel bar ring respectively apart from channel-section steel 1cm, its Main Function horizontally slips for making three channel-section steels steel ring that has some setbacks, but does not affect channel-section steel and rotate up and down around steel ring;
Step 6: the channel-section steel processed in step 3 welds the long steel pipe of a 100cm near steel ring one end, and steel pipe is apart from steel ring 20cm, and the angle between steel pipe and channel-section steel is 15 °, and installs a pulley (6) at the other end of steel pipe;
Step 7: welding 3 plain bars on the plain bar that a 70cm is long, it is perpendicular that the first root bead is connected on end, and the second root bead is connected on apart from first 25cm place parallel with first, and the 3rd is parallel with second with being welded on apart from second 25cm place;
Step 8: to process one piece of diameter be 90cm thickness is the round plate of 1.2mm, and this round plate is drawn bar straight line, and straight line is 20cm apart from the vertical distance at round plate edge, along this straight line, round plate is cut into 2 pieces;
Step 9: at steel ring by being welded with the channel-section steel of steel pipe and welding perpendicular to this channel-section steel, left and right, distance channel-section steel horizontal range 20cm place the reinforcing bar annulus that a diameter is 5cm respectively;
Step 10: first reinforcing bar of reinforced frame step 7 processed injects in the reinforcing bar annulus in step 9, again the relatively large round plate of processing in step 8 is covered on reinforced frame, make them symmetrical, the part that relatively large round plate overlaps with the reinforcing bar annulus in step 9 is cut away, then relatively large round plate is welded on reinforced frame, and can rotate up and down around reinforcing bar circle ring center after guaranteeing reinforced frame and the welding of relatively large round plate, and by the other end of the round plate welded reinforcement annulus of fritter;
Step 11: weld a little reinforcing bar annulus in cover plate one end of reinforced frame and the welding of relatively large round plate, and fasten top cover stay cord, top cover stay cord, by being connected in the fastening devices on channel steel support after pulley, is finally made into a kind of safty shield.
2. the preparation method of the safty shield according to any one of claim 1, it is characterized in that: described first protecting cover is fixed cap, second protecting cover is removable cover, and described second protecting cover is connected with top cover stay cord, and the second protecting cover is opened and closedown by the realization that pulls of stay cord.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210286460.6A CN102864942B (en) | 2012-08-13 | 2012-08-13 | Manufacturing method for security protective cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210286460.6A CN102864942B (en) | 2012-08-13 | 2012-08-13 | Manufacturing method for security protective cover |
Publications (2)
| Publication Number | Publication Date |
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| CN102864942A CN102864942A (en) | 2013-01-09 |
| CN102864942B true CN102864942B (en) | 2015-06-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210286460.6A Expired - Fee Related CN102864942B (en) | 2012-08-13 | 2012-08-13 | Manufacturing method for security protective cover |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105888720A (en) * | 2014-12-19 | 2016-08-24 | 四川省华蓥山煤业股份有限公司李子垭煤矿 | Lower vertical bore-hole gangue drop prevention device |
| CN104473349B (en) * | 2015-01-06 | 2015-11-25 | 四川职业技术学院 | Roll-over protective structure |
| CN110424412B (en) * | 2019-07-22 | 2021-04-20 | 东莞市建工集团有限公司 | Manual hole digging pile system |
| CN110374346A (en) * | 2019-08-19 | 2019-10-25 | 贵州黔航交通工程有限公司 | Hole stake excavation safety device |
| CN114922557B (en) * | 2022-05-26 | 2023-10-20 | 中国电建集团成都勘测设计研究院有限公司 | Protection device and hole digging method for underground operation of manual hole digging pile |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61166051U (en) * | 1985-04-03 | 1986-10-15 | ||
| CN202209056U (en) * | 2011-09-06 | 2012-05-02 | 甘肃第一建设集团有限责任公司 | Underground safety shield of manual hole digging pile |
| CN202209057U (en) * | 2011-09-13 | 2012-05-02 | 云南路桥股份有限公司 | Protection net for manual pile digging operation |
-
2012
- 2012-08-13 CN CN201210286460.6A patent/CN102864942B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61166051U (en) * | 1985-04-03 | 1986-10-15 | ||
| CN202209056U (en) * | 2011-09-06 | 2012-05-02 | 甘肃第一建设集团有限责任公司 | Underground safety shield of manual hole digging pile |
| CN202209057U (en) * | 2011-09-13 | 2012-05-02 | 云南路桥股份有限公司 | Protection net for manual pile digging operation |
Non-Patent Citations (1)
| Title |
|---|
| 人工挖孔桩施工中的安全问题;龙鳘;《建筑安全》;20120430(第4期);第36-38页 * |
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Owner name: WATER RESOURCES + HYDROPOWER CONSTRUCTION CO., LTD Effective date: 20140418 Owner name: YUNNAN NO.2 CONSTRUCTION ENGINEERING CO., LTD.;YUN Free format text: FORMER OWNER: WATER RESOURCES + HYDROPOWER CONSTRUCTION CO., LTD. OF YUNNAN CONSTRUCTION ENGINEERING GROUP Effective date: 20140418 |
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Inventor after: Liu Yong Inventor after: Chen Dinghua Inventor after: Hong Jie Inventor after: Fu Yanmei Inventor after: Jiang Zehou Inventor after: Shen Jiawen Inventor after: Lei Chunyan Inventor after: Liu Jinrong Inventor after: Yu Rui Inventor after: Wang Xiaoyan Inventor after: Chen Yunzhou Inventor after: Tang Zhongkun Inventor before: Jiang Zehou Inventor before: Shen Jiawen Inventor before: Lei Chunyan Inventor before: Liu Jinrong Inventor before: Yu Rui |
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Effective date of registration: 20140418 Address after: 650203, Kunming, Yunnan province Kunming Panlong District North 13 North Road Applicant after: Yunnan No.2 Construction Engineering Co.,Ltd. Applicant after: YUNNAN CONSTR ENG WATER CONSERVANCY & HYDROPOWER CONSTR Co.,Ltd. Applicant after: YUNNAN NO.3 CONSTRUCTIONAL ENGINEERING Co.,Ltd. Applicant after: YUNNAN CONSTRUCTION ENGINEERING GROUP Co.,Ltd. Address before: 650041, 78 east suburb Road, Guandu District, Yunnan, Kunming Applicant before: YUNNAN CONSTR ENG WATER CONSERVANCY & HYDROPOWER CONSTR Co.,Ltd. |
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Address after: 13 Kunming, Panlong District, Yunnan North Dam Road, No. 650203 Applicant after: SECOND CONSTRUCTION Co.,Ltd. OF YNJG Applicant after: YUNNAN CONSTR ENG WATER CONSERVANCY & HYDROPOWER CONSTR Co.,Ltd. Applicant after: YUNNAN NO.3 CONSTRUCTIONAL ENGINEERING Co.,Ltd. Applicant after: YUNNAN CONSTRUCTION ENGINEERING GROUP Co.,Ltd. Address before: 650203, Kunming, Yunnan province Kunming Panlong District North 13 North Road Applicant before: Yunnan No.2 Construction Engineering Co.,Ltd. Applicant before: YUNNAN CONSTR ENG WATER CONSERVANCY & HYDROPOWER CONSTR Co.,Ltd. Applicant before: YUNNAN NO.3 CONSTRUCTIONAL ENGINEERING Co.,Ltd. Applicant before: YUNNAN CONSTRUCTION ENGINEERING GROUP Co.,Ltd. |
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Address after: 650200 Beijiao, Yunnan, Kunming dam Co-patentee after: YCIH NO.1 WATER RESOURCES AND HYDROPOWER CONSTRUCTION CO.,LTD. Patentee after: YCIH NO.2 CONSTRUCTION Co.,Ltd. Co-patentee after: YCIH NO.3 CONSTRUCTION Co.,Ltd. Co-patentee after: YUNNAN CONSTRUCTION ENGINEERING GROUP Co.,Ltd. Address before: 13 Kunming, Panlong District, Yunnan North Dam Road, No. 650203 Co-patentee before: YUNNAN CONSTR ENG WATER CONSERVANCY & HYDROPOWER CONSTR Co.,Ltd. Patentee before: SECOND CONSTRUCTION Co.,Ltd. OF YNJG Co-patentee before: YUNNAN NO.3 CONSTRUCTIONAL ENGINEERING Co.,Ltd. Co-patentee before: YUNNAN CONSTRUCTION ENGINEERING GROUP Co.,Ltd. |
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Effective date of registration: 20170410 Address after: 650200 Beijiao, Yunnan, Kunming dam Co-patentee after: YCIH NO.1 WATER RESOURCES AND HYDROPOWER CONSTRUCTION CO.,LTD. Patentee after: YCIH NO.2 CONSTRUCTION Co.,Ltd. Co-patentee after: YCIH NO.3 CONSTRUCTION Co.,Ltd. Co-patentee after: Yunnan Construction Investment Holding Group Co., Ltd. Address before: 650200 Beijiao, Yunnan, Kunming dam Co-patentee before: YCIH NO.1 WATER RESOURCES AND HYDROPOWER CONSTRUCTION CO.,LTD. Patentee before: YCIH NO.2 CONSTRUCTION Co.,Ltd. Co-patentee before: YCIH NO.3 CONSTRUCTION Co.,Ltd. Co-patentee before: YUNNAN CONSTRUCTION ENGINEERING GROUP Co.,Ltd. |
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Granted publication date: 20150603 Termination date: 20210813 |
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| CF01 | Termination of patent right due to non-payment of annual fee |