CN204046074U - wire cutter - Google Patents
wire cutter Download PDFInfo
- Publication number
- CN204046074U CN204046074U CN201420439466.7U CN201420439466U CN204046074U CN 204046074 U CN204046074 U CN 204046074U CN 201420439466 U CN201420439466 U CN 201420439466U CN 204046074 U CN204046074 U CN 204046074U
- Authority
- CN
- China
- Prior art keywords
- knife rest
- operating desk
- swingle
- hinged
- upper shuttering
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000009415 formwork Methods 0.000 claims abstract description 29
- 238000009416 shuttering Methods 0.000 claims abstract description 28
- 238000012423 maintenance Methods 0.000 claims abstract description 13
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 9
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 34
- 229910052782 aluminium Inorganic materials 0.000 abstract description 34
- 239000004411 aluminium Substances 0.000 abstract description 31
- 229910000831 Steel Inorganic materials 0.000 abstract description 30
- 239000010959 steel Substances 0.000 abstract description 30
- 239000004020 conductor Substances 0.000 abstract description 28
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 4
- 230000002093 peripheral effect Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
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- Shearing Machines (AREA)
Abstract
The utility model discloses a kind of wire cutter, relate to a kind of circuit on power system maintenance field.Comprise operating desk, operating desk is provided with whirligig and the maintenance hold down gag corresponding with whirligig position, maintenance hold down gag comprises the manual folding assembly be fixed on operating desk, manual folding assembly is connected with upper shuttering, and lower formwork bolt is connected on the operating desk corresponding with upper shuttering; Whirligig comprises cylindrical base, bearing is socketed with outside pedestal, bearing is socketed with rotating disk, on disk peripheral, symmetry fixes two connecting plates, a connecting plate is provided with respectively knife rest and the feed arrangement of blade by two pieces of bent plates I, knife rest rear end and feed arrangement front end hinged, on another connecting plate, opposing blades is provided with pressing wheel device.The outer field aluminium stranded conductor of the utility model energy fly-cutting iron core aluminium twisted wire, does not injure steel core, and broken string part neat appearance.
Description
Technical field
The utility model relates to a kind of electric power system implement, specifically refers to a kind of instrument of wire cutting.
Background technology
Power transmission sequence is located on shaft tower with insulator and corresponding gold utensil by wire and overhead ground wire suspension frame, connects power plant and transformer station, to realize the electric power facility for the purpose of transmission of electric energy.Primarily of compositions such as wire, overhead ground wire, insulator, gold utensil, shaft tower, basis, earthing device.The wherein function of wire mainly transmission of electric energy.Line conductor should have good electric conductivity, enough mechanical strengths, and vibration resistance is tired and resist the ability that in air, chemical impurity corrodes.Line conductor often adopts steel reinforced aluminium conductor at present.The outer aluminium stranded conductor of steel reinforced aluminium conductor termination need be peelled off when wherein strain clamp is connected with wire, then hydraulic connecting in the hole of exposing steel core and insert strain clamp steel anchor is integrated.In the process making overhead wire, there is multiple conducting wire end to need to peel off aluminium stranded conductor.At present, generally pliers is adopted when wire stripping operation is carried out for iron core aluminium twisted wire, the instrument such as scissors or saw, all dynamics are used with feeling by operator, being easy to cause peel force to kick the beam cannot by its strip off, or peel force overweight causing does not need the aspect peeled off also to be removed, therefore the occurrence rate of substandard products is higher; In addition, for operator, because the fail safe of instrument is low, misoperation is easy to the incised wound causing personnel.Be badly in need of a kind of simple to operate now, cutting is rapid, and the smooth neat wire cutter sweep of cutting section.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of wire cutting device, and the outer field aluminium stranded conductor of its energy fly-cutting iron core aluminium twisted wire, does not injure steel core, and broken string part neat appearance.
For solving the problems of the technologies described above, technical solution adopted in the utility model is:
Wire cutter, comprise operating desk, operating desk is provided with whirligig and the maintenance hold down gag corresponding with whirligig position, maintenance hold down gag comprises the manual folding assembly be fixed on operating desk, manual folding assembly is connected with upper shuttering, and lower formwork bolt is connected on the operating desk corresponding with upper shuttering; Whirligig comprises cylindrical base, bearing is socketed with outside pedestal, bearing is socketed with rotating disk, on disk peripheral, symmetry fixes two connecting plates, a connecting plate is provided with respectively knife rest and the feed arrangement of blade by two pieces of bent plates I, knife rest rear end and feed arrangement front end hinged, on another connecting plate, opposing blades is provided with pressing wheel device; The hinged seat that described manual folding assembly comprises handle, swingle, connecting rod and is fixedly connected on operating desk; Handle, at its lower end is hinged on hinged seat lower-end front portion, and swingle lower end is hinged on hinged seat rear upper end, the two ends of connecting rod respectively with the middle part of handle and swingle middle part hinged, described upper shuttering is connected in the elongated hole on swingle top; Two pin joint horizontal ranges on hinged seat equal the distance of two pin joints on swingle, and the distance sum of the vertical range of two pin joints of hinged seat and two pin joints of connecting rod equals the distance of two pin joints on handle.
The utility model improves further and is: described upper shuttering is semi-circular cylindrical, and upper shuttering outer surface arranges the joint pin that an end arranges screw thread, and joint pin is fixed in the elongated hole of swingle front portion by two nuts; Lower formwork is the semi-circular cylindrical coordinating upper shuttering, and lower formwork is fixed on operating desk by the fixed head of its outer surface.
The utility model improves further and is: the central axis of the cylinder that described upper shuttering becomes with counterdie hull shape and the dead in line of base central axis.
The utility model improves further and is: knife rest cross section is square, bent plate I is provided with the square opening coordinating knife rest, knife rest top is provided with cutter groove, and described blade is connected in cutter groove by rotating shaft, and knife rest is arranged in the square opening of the bent plate I of rotating disk; The leading screw that described feed arrangement comprises feed screw nut and coordinates with feed screw nut, leading screw afterbody connects handwheel dish, and feed screw nut is fixed on another block bent plate I; The rear end of knife rest is connected with the leading screw front end of feed arrangement by spherical auxiliary connection, and two pieces of bent plates I are all connected on the connecting plate of rotating disk.
The utility model improves further and is: described pressing wheel device comprises bent plate II, and bent plate II one end is connected on the connecting plate of rotating disk, and the other end is hinged with two cylindrical rollers corresponding with blade.
Owing to adopting technique scheme, the beneficial effect that the utility model produces is:
The utility model only needs steel reinforced aluminium conductor to put into lower formwork, control crank rotates upper shuttering until merged fixing steel reinforced aluminium conductor with lower formwork, rotation hand wheel dish and rotating disk can complete the stripping to aluminium stranded conductor, rapidly simple, do not injure steel core, and the cross section neat appearance of broken string part.
The manual folding assembly that the utility model is made up of hinged seat, handle, swingle and connecting rod is when pushing handle forward, the upper shuttering of swingle front end moves downward, steel reinforced aluminium conductor is pushed down, now handle, connecting rod are positioned on same vertical line, and vertical with swingle, swingle self can not upwards lift, and swingle is locked, only pull back handle, swingle can be lifted.The utility model can realize the fixing of steel reinforced aluminium conductor by drawing handle and relax, simple to operate, and locking firmly.
Upper shuttering and lower formwork merge formation cylinder when fixing steel reinforced aluminium conductor, cylinder center's axis and base central dead in line, ensure pivot and the steel reinforced aluminium conductor center superposition of blade, makes cutting part symmetrical, avoid cut wound steel core, ensure the quality of cutting.
Upper shuttering is fixed in the elongated hole of swingle front portion by joint pin, nut, and lower formwork is bolted on operating desk; Upper and lower formwork dismounting and install easy, and formwork is complete up and down uses and change, and adapts to the external diameter of the steel reinforced aluminium conductor of different size, strengthens versatility.
Knife rest cross section is square, bent plate I is provided with the square opening coordinating knife rest, knife rest front end is arranged in the square opening of bent plate I, the rear end of knife rest is hinged by the leading screw front end of spherical auxiliary connection and feed arrangement, square opening when rotation hand wheel dish makes leading screw rotation advance on bent plate ensures that knife rest does not rotate thereupon, spherical auxiliary connection ensures the rotation not hindering leading screw while knife rest is fixed, the cutting aluminium stranded conductor that blade can be firm, ensures cut quality.
Pressing wheel device is fixed on the connecting plate relative with blade, and blade is supplied to steel reinforced aluminium conductor support force into pressing wheel device during aluminium stranded conductor cutting, and simultaneously in circumgyration incision process, the pinch roller of rotation avoids the frictional force that fixed support brings, and makes cutting more smooth and easy.
Accompanying drawing explanation
Fig. 1 is agent structure schematic diagram of the present utility model;
Fig. 2 is maintenance hold down gag structural representation;
Fig. 3 is the assembly drawing of whirligig, knife rest, feed arrangement and pressing wheel device;
Fig. 4 is cutter frame structure schematic diagram;
In the accompanying drawings: 1, operating desk, 2, maintenance hold down gag, 2-1, manual folding assembly, 2-1-1, hinged seat, 2-1-2, handle, 2-1-3, swingle, 2-1-4, connecting rod, 2-1-5, elongated hole, 2-2, upper shuttering, 2-2-1, joint pin, 2-2-2, nut, 2-3, lower formwork, 2-3-1, fixed head, 3, whirligig, 3-1, pedestal, 3-2, bearing, 3-3, rotating disk, 3-4, connecting plate, 3-5, stirrup, 4, knife rest, 4-1, blade, 4-2, cutter groove, 4-3, rotating shaft, 4-4, groove, 5, feed arrangement, 5-1, feed screw nut, 5-2, leading screw, 5-3, handwheel dish, 5-4, bulb, 6, pressing wheel device, 6-1, roller, 7, bent plate I, 8, bent plate II.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further details:
The utility model agent structure schematic diagram as shown in Figure 1, comprise operating desk 1, maintenance hold down gag 2 is bolted on operating desk 1, on the operating desk 1 that whirligig 3 is fixed on by stirrup 3-5, the central axes of the cylinder that the central axis of the pedestal 3-1 of whirligig 3 and the formwork up and down of maintenance hold down gag 2 form, knife rest 4 is fixed on a connecting plate 3-4 of whirligig 3, the rear end of knife rest 4 is connected with the leading screw 5-2 front end of feed arrangement 5 by spherical auxiliary connection, and pressing wheel device 6 is arranged on another connecting plate 3-4 corresponding with blade 4-1.The outer field aluminium stranded conductor of the utility model energy fly-cutting iron core aluminium twisted wire, does not injure steel core, and broken string part neat appearance.
Maintenance hold down gag 2 forms primarily of manual folding assembly 2-1 and upper shuttering 2-2 and lower formwork 2-3, as shown in Figure 2; Manual folding assembly 2-1 comprises hinged seat 2-1-1, handle 2-1-2, swingle 2-1-3 and connecting rod 2-1-4, handle 2-1-2 lower end is hinged on hinged seat 2-1-1 lower-end front portion, swingle 2-1-3 lower end is hinged on hinged seat 2-1-1 rear upper end, the two ends of connecting rod 2-1-4 respectively with the middle part of handle 2-1-2 and swingle 2-1-3 middle part hinged; Two pin joint horizontal ranges on hinged seat 2-1-1 equal the distance of two pin joints on swingle 2-1-3, and the distance sum of the vertical range of two pin joints of hinged seat 2-1-1 and two pin joints of connecting rod 2-1-4 equals the distance of two pin joints on handle 2-1-2.Forward during pushing handle 2-1-2, the upper shuttering 2-2 of swingle 2-1-3 front end moves downward, steel reinforced aluminium conductor is pushed down, now handle 2-1-2, connecting rod 2-1-4 are positioned on same vertical line, and vertical with swingle 2-1-3, swingle 2-1-3 self can not upwards lift, and swingle 2-1-3 is locked, only pull back handle 2-1-2, swingle 2-1-3 can be lifted.The utility model can realize the fixing of steel reinforced aluminium conductor by drawing handle 2-1-2 and relax, simple to operate, and locking firmly.
The swingle 2-1-3 level when upper and lower formwork combines, connecting rod 2-1-4 and handle 2-1-2 is perpendicular to operating desk 1 and form straight line, formwork can bear all directions active force from steel reinforced aluminium conductor, now only otherwise control crank 2-1-2 steel reinforced aluminium conductor can be stabilized among formwork, the stability of maintenance is ensured.
Upper shuttering 2-2 is semi-circular cylindrical, upper shuttering 2-2 outer surface arranges joint pin 2-2-1, joint pin 2-2-1 end arranges screw thread, joint pin 2-2-1 threaded one end end pierces in the elongated hole 2-1-5 of setting on swingle 2-1-3, nut 2-2-2 is fastened on swingle 2-1-3 one on the other, realizes the connection of swingle 2-1-3 and upper shuttering 2-2; Lower formwork 2-3 is semi-circular cylindrical, and lower formwork 2-3 outer surface connects a fixed head 2-3-1, and fixed head 2-3-1 is bolted on operating desk 1.Upper shuttering 2-2 realizes and the opening and merge of lower formwork 2-3 under the rotation of swingle 2-1-3, can form a complete hollow cylinder when upper and lower formwork combines.The fixed form of upper and lower formwork makes dismounting and installs all very easy, upper shuttering 2-2 and lower formwork 2-3 is complete uses and change, the outside diameter of cylinder of every suit upper and lower formwork composition all just as, change the internal diameter of cylinder to adapt to the steel reinforced aluminium conductor of all size by adjustment wall thickness.Often the outside diameter of cylinder of cover upper and lower mould shell composition is constant simultaneously ensure that cylinder center's axis all the time on a position, make cylinder center's dead in line that whirligig 3 central axis forms with upper and lower formwork all the time, ensure the center that blade 4-1 rotates and steel reinforced aluminium conductor centres, ensure the quality of cutting, avoid cut wound steel core.
Be socketed with bearing 3-2 outside pedestal 3-1, bearing 3-2 be socketed with rotating disk 3-3, rotating disk 3-3 is circumferentially symmetrical arranged two connecting plate 3-4, and one of them connecting plate 3-4 one in front and one in back fixes two bent plates I 7, and bent plate I 7 center is provided with square hole; Knife rest 4 cross section is square, and knife rest 4 is arranged in the square hole of the bent plate I 7 of rotating disk 3-3, the cutter groove 4-2 that knife rest 4 top is arranged, and blade 4-1 is hinged in cutter groove 4-2 by rotating shaft 4-3; The groove 4-4 of knife rest 4 bottom and the bulb 5-4 on leading screw 5-2 top forms spherical auxiliary connection, feed arrangement 5 is hinged on knife rest 4 bottom by spherical auxiliary connection, leading screw 5-2 is screwed in feed screw nut 5-1, feed screw nut 5-1 is fixed on another bent plate I 7, leading screw 5-2 afterbody connects handwheel dish 5-3, as shown in Figure 3; Square opening when rotation hand wheel dish 5-3 makes leading screw 5-2 rotation advance on bent plate I 7 ensures that knife rest 4 does not rotate thereupon, spherical auxiliary connection ensures the rotation not hindering leading screw 5-2 while knife rest 4 is fixed, enable the cutting aluminium stranded conductor that blade 4-1 is firm, ensure cut quality.
On another connecting plate 3-4, the position of opposing blades 4-1 is provided with bent plate II 8, and bent plate II 8 one end is connected on connecting plate 3-4, hinged two the cylindrical roller 6-1 of the other end.Blade 4-1 provides steel reinforced aluminium conductor support force into pressing wheel device during aluminium stranded conductor 6 cutting, and simultaneously in circumgyration incision process, the roller 6-1 of rotation avoids the frictional force that fixed support brings, and makes cutting more smooth and easy.
Operating process of the present utility model is as described below:
1, the position of cutting is needed to carry out mark in wire;
2, push wire cable cutter handle 2-1-2 open wire is fixed in upper and lower formwork and extend in the hole of pedestal, blade 4-1 is aimed at needs cutting part;
3, rotation hand wheel dish 5-3 makes in the outer aluminum steel of blade 4-1 insertion wire;
4, rotate rotating disk 3-3, make it along 360 degree of rotations, while rotary turnplate 3-3, rotate handwheel dish 5-3, make it to go deep into each layer aluminum steel of wire cutting;
5, stop the rotation when blade 4-1 is cut to steel core excircle handwheel dish 5-3, and try again rotating disk 3-3 360 degree of rotations;
6, push wire cutter handle 2-1-2 open wire is taken out, to dismantle cut outer aluminum steel with hand, expose wire steel core, complete wire connect before tangent line work.
Claims (5)
1. wire cutter, comprise operating desk (1), operating desk (1) is provided with whirligig (3) and the maintenance hold down gag (2) corresponding with whirligig (3) position, it is characterized in that: maintenance hold down gag (2) comprises the manual folding assembly (2-1) be fixed on operating desk (1), manual folding assembly (2-1) is connected with upper shuttering (2-2), and lower formwork (2-3) bolt is connected on the operating desk (1) corresponding with upper shuttering (2-2); Whirligig (3) comprises cylindrical base (3-1), bearing (3-2) is socketed with outside pedestal (3-1), bearing (3-2) is socketed with rotating disk (3-3), two connecting plates (3-4) fixed by rotating disk (3-3) circumferentially symmetry, a connecting plate (3-4) is provided with respectively knife rest (4) and the feed arrangement (5) of blade (4-1) by two pieces of bent plates I (7), knife rest (4) rear end and feed arrangement (5) front end hinged, the upper opposing blades (4-1) of another connecting plate (3-4) is provided with pressing wheel device (6);
The hinged seat (2-1-1) that described manual folding assembly (2-1) comprises handle (2-1-2), swingle (2-1-3), connecting rod (2-1-4) and is fixedly connected on operating desk (1); Handle (2-1-3) lower end is hinged on hinged seat (2-1-1) lower-end front portion, swingle (2-1-3) lower end is hinged on hinged seat (2-1-1) rear upper end, the two ends of connecting rod (2-1-4) respectively with the middle part of handle (2-1-2) and swingle (2-1-3) middle part hinged, described upper shuttering (2-2) is connected in the elongated hole (2-1-5) on swingle (2-1-3) top; Two pin joint horizontal ranges on hinged seat (2-1-1) equal the distance of two pin joints on swingle (2-1-3), and the distance sum of the vertical range of two pin joints of hinged seat (2-1-1) and two pin joints of connecting rod (2-1-4) equals the distance of two pin joints on handle (2-1-2).
2. wire cutter according to claim 1, it is characterized in that: described upper shuttering (2-2) is semi-circular cylindrical, upper shuttering (2-2) outer surface arranges the joint pin (2-2-1) that an end arranges screw thread, and joint pin (2-2-1) is fixed in the anterior elongated hole (2-1-5) of swingle (2-1-3) by two nuts (2-2-2); Lower formwork (2-3) is the semi-circular cylindrical coordinating upper shuttering (2-2), and lower formwork (2-3) is fixed on operating desk (1) by the fixed head (2-3-1) of its outer surface.
3. the wire cutter according to any one of claim 1 or 2, is characterized in that: the central axis of the cylinder that described upper shuttering (2-2) and lower formwork (2-3) are formed and the dead in line of pedestal (3-1) central axis.
4. wire cutter according to claim 1, it is characterized in that: knife rest (4) cross section is square, bent plate I (7) is provided with the square opening coordinating knife rest (4), knife rest (4) top is provided with cutter groove (4-2), described blade (4-1) is connected in cutter groove (4-2) by rotating shaft (4-3), and knife rest (4) is arranged in the square opening of the bent plate I (7) of rotating disk (3-3); The leading screw (5-2) that described feed arrangement (5) comprises feed screw nut (5-1) and coordinates with feed screw nut (5-1), leading screw (5-2) afterbody connects handwheel dish (5-3), and feed screw nut (5-1) is fixed on another block bent plate I (7); The rear end of knife rest (4) is connected with leading screw (5-2) front end of feed arrangement (5) by spherical auxiliary connection, and two pieces of bent plates I (7) are all connected on the connecting plate (3-4) of rotating disk (3-3).
5. wire cutter according to claim 1, it is characterized in that: described pressing wheel device (6) comprises bent plate II (8), bent plate II (8) one end is connected on the connecting plate (3-4) of rotating disk (3-3), and the other end is hinged with two cylindrical rollers (6-1) corresponding with blade (4-1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420439466.7U CN204046074U (en) | 2014-08-06 | 2014-08-06 | wire cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420439466.7U CN204046074U (en) | 2014-08-06 | 2014-08-06 | wire cutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204046074U true CN204046074U (en) | 2014-12-24 |
Family
ID=52246702
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420439466.7U Active CN204046074U (en) | 2014-08-06 | 2014-08-06 | wire cutter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204046074U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104113018A (en) * | 2014-08-06 | 2014-10-22 | 国家电网公司 | Wire cutter |
| CN108274071A (en) * | 2017-12-14 | 2018-07-13 | 西安航天化学动力厂 | A kind of bevelling processing unit (plant) for sheet-like flexible material |
-
2014
- 2014-08-06 CN CN201420439466.7U patent/CN204046074U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104113018A (en) * | 2014-08-06 | 2014-10-22 | 国家电网公司 | Wire cutter |
| CN104113018B (en) * | 2014-08-06 | 2017-01-18 | 国家电网公司 | wire cutter |
| CN108274071A (en) * | 2017-12-14 | 2018-07-13 | 西安航天化学动力厂 | A kind of bevelling processing unit (plant) for sheet-like flexible material |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Patentee after: State Grid Corporation of China Patentee after: State Grid Hebei Electric Power Company Patentee after: HEBEI ELECTRIC POWER PROJECT MANAGEMENT CO., LTD. Address before: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Patentee before: State Grid Corporation of China Patentee before: State Grid Hebei Electric Power Company Patentee before: Hebei Electric Power Project Management Co., Ltd. |