CN111636752B - Electric power cross arm - Google Patents
Electric power cross arm Download PDFInfo
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- CN111636752B CN111636752B CN202010700375.4A CN202010700375A CN111636752B CN 111636752 B CN111636752 B CN 111636752B CN 202010700375 A CN202010700375 A CN 202010700375A CN 111636752 B CN111636752 B CN 111636752B
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- cross arm
- clamping
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
- E04H12/24—Cross arms
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/14—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate against other dangerous influences, e.g. tornadoes, floods
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
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- Structural Engineering (AREA)
- Business, Economics & Management (AREA)
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- Environmental & Geological Engineering (AREA)
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Abstract
The invention relates to an electric cross arm which comprises two clamping devices, a connecting piece, two cross arm groups and two reinforcing rods, wherein the two clamping devices are connected through the connecting piece, the cross arm groups are installed on the outer sides of the clamping devices, the two reinforcing rods are arranged between the two cross arm groups, and the two reinforcing rods are arranged on the left and right sides. The insulator can solve the problems that insulators are usually installed on the traditional cross arm at equal intervals, because the connecting positions of the cross arm and the anchor ear are positioned in the middle of the cross arm, the bearing capacity of two ends of the cross arm is often smaller than that of the middle of the cross arm, the insulators arranged at equal intervals can cause that two ends of the cross arm are difficult to bear the gravity and have cracks, a serious person can be directly broken, the traditional cross arm and the anchor ear are fixed by welding, the size of the cross arm is large, the difficulty of people in transporting the cross arm to a high altitude is large, the existing cross arms are not connected with one another, the wind resistance of a single cross arm is poor under the condition of large wind power, and the like.
Description
Technical Field
The invention relates to the field of electric power, in particular to an electric power cross arm.
Background
The cross arm is used as an important component in a power transmission line tower, is used for installing insulators and hardware fittings and is used for supporting wires and keeping a certain safe distance between the wires, and because most of the cross arms are installed at high altitude, the traditional cross arm often has some problems;
1. in order to avoid the situation that wires on the insulators interfere with each other, the insulators are usually installed on the traditional cross arm at equal intervals, and because the connecting position of the cross arm and the anchor ear is located in the middle of the cross arm, the bearing force at two ends of the cross arm is often smaller than the bearing force in the middle of the cross arm, the insulators arranged at equal intervals may cause that two ends of the cross arm are difficult to bear the situation that the gravity of the insulators is cracked, and a serious person directly breaks;
for welded fastening between traditional cross arm and the staple bolt, and the size of cross arm is great, and the personnel are great with the degree of difficulty of cross arm fortune to the high time, and do not have any connection between the current cross arm, single cross arm is under the condition of great wind-force, and the wind-resistance is relatively poor.
Disclosure of Invention
Technical scheme (I)
In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides an electric power cross arm, includes two clamping device, connecting piece, two cross arm groups and two stiffeners, two clamping device between connect through the connecting piece, cross arm group is installed in clamping device's the outside, and is equipped with two stiffeners between two cross arm groups, and arranges about two stiffeners.
The clamping device comprises a clamping frame, a connecting rod, a placing frame, a resistance reducing ball, a reset spring, a corresponding block and an assembling mechanism, wherein a working cavity is formed in the clamping frame, the working cavity is connected with the connecting rod in a sliding fit manner, the placing frame is uniformly arranged on the inner wall of the connecting rod, the resistance reducing ball is arranged in the placing frame, the design of the resistance reducing ball reduces the condition that the inner wall of the clamping frame is in contact with the outer wall of the power rod to be abraded when the clamping frame is not locked, after the two clamping frames are tightly held, the resistance reducing ball is driven to retract into the working cavity after the connecting rod is pressed by the corresponding block of the other clamping frame, at the moment, the outer wall of the power rod is in direct contact with the inner wall of the clamping frame, the reset spring is connected between the connecting rod and the inner wall of the working cavity, the reset spring plays a reset effect, the corresponding block is installed at the inner, wrap up the electric power pole through two holding brackets on two clamping device, thereby lock the two through the connecting piece and hold tightly the electric power pole.
The cross arm group include the screens piece, two cross arms, the locating hole, partition mechanism and two strengthening ribs, both ends are equipped with two cross arms about the screens piece, the locating hole has been seted up on every cross arm, be equipped with partition mechanism on the cross arm, and it is corresponding to separate the position between mechanism and the locating hole, the joint has the strengthening rib between cross arm and the screens piece, the strengthening rib plays the stable effect of enhancement, install the insulator of corresponding quantity according to actual conditions, be connected with the insulator through the locating hole, it changes to trigger partition mechanism after connecting, thereby separate with adjacent insulator and place, the condition of interference appears in the contact between the electric wire on the adjacent insulator has been reduced.
The separation mechanism include the shell, the work frame, the linkage post, connecting spring, two are separated the branch chain, the lower extreme at the cross arm is installed to the shell, shell internally mounted has the work frame, the air cavity has been seted up to the inside of work frame, the middle part of air cavity is passed through connecting spring and is linked the post connection, connecting spring plays the effect that resets, for corresponding the arrangement from top to bottom between linkage post and the locating hole, both ends are equipped with two and separate the branch chain about the air cavity, during specific work, the insulator is installed behind the locating hole, its lower extreme pushes down the linkage post, upwards extrude two rubber columns in step under the effect of atmospheric pressure, the division board that rises in step plays divided effect.
The stiffener include the body of rod and two inserts, both ends cover is equipped with two inserts around the body of rod, and be connected for the screens between insert and the body of rod, play the effect of location, the design of stiffener has strengthened the stability between two cross arms of arranging around, has increased the anti-wind effect.
Preferably, the assembly mechanism comprises a clamping frame, a clamping block and a positioning piece, the clamping frame is arranged at the outer end of the clamping frame, the clamping block is arranged on the inner wall of the clamping frame, and the outer end of the clamping frame is connected with the positioning piece in a sliding fit mode.
Preferably, the clamping piece is connected with the clamping block in an embedded mode, and the positioning piece is connected with the clamping piece through the locking bolt.
Preferably, the inner ends of the cross arms are connected with the clamping parts in an embedded mode, and the distance between adjacent positioning holes on each cross arm is gradually shortened from inside to outside.
Preferably, the linkage column comprises a linkage rod, a piston plate and a rotating disc, the piston plate is mounted at the lower end of the linkage rod, the piston plate is attached to the inner wall of the air cavity, and the upper end of the linkage rod is connected with the rotating disc in a rotating fit mode.
Preferably, the separation branch chain comprises a rubber column, a separation plate and a sealing cover, the separation plate is connected with the cross arm in a sliding fit mode, the sealing cover is connected between the separation plate and the cross arm, and the rubber column is installed at the lower end of the separation plate.
Preferably, the rubber column is tightly attached to the air cavity.
Preferably, the upper end of the reinforcing rib is connected with the cross arm in a clamping mode, and the inner end of the reinforcing rib is connected with the clamping piece in a clamping mode.
(II) advantageous effects
1. According to the electric cross arm, the insulators are installed by adopting separation and change of hole site intervals of hole sites, the gradual reduction of the intervals ensures that the weight of the insulators is close to the inner end of the cross arm after the insulators are installed, the condition that cracks occur at the outer end of the cross arm is avoided, and due to the fact that the separation mechanism has a separation effect, even if the intervals between adjacent insulators are shortened, the possibility that wires on the adjacent insulators are interfered with each other cannot rise;
2. according to the electric power cross arm, the clamping devices are connected with the cross arm group in an assembling mode, the resistance reducing balls on the clamping devices avoid the abrasion degree of the inner wall of the clamping frame before installation, the service life of the clamping frame is prolonged, and the connection stability between the clamping devices and an electric power pole is guaranteed through the effective clamping of the two clamping devices to the electric power pole;
3. according to the electric cross arm, the design concept of the linkage structure is adopted by the separating mechanism, when the insulator is connected with the positioning holes, the separating mechanism which is correspondingly arranged can be extruded to protect the left end and the right end of the insulator in a separating way, and the distance between the positioning holes on the cross arm is gradually reduced from inside to outside, so that the weight of the insulator is ensured to be close to the inner end of the cross arm after the insulator is installed, and the condition that cracks appear at the outer end of the cross arm is avoided.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a top view of the present invention;
FIG. 3 is a cross-sectional view of the cross-arm cluster of the present invention;
FIG. 4 is an enlarged view of the invention in section X of FIG. 2;
fig. 5 is a partial enlarged view of the invention in the Y direction of fig. 3.
Detailed Description
Embodiments of the present invention will be described below with reference to the drawings. In this process, the width of the lines or the size of the components in the drawings may be exaggerated for clarity and convenience of description.
The following terms are defined based on the functions of the present invention, and may be different depending on the intention of the user or the operator or the convention. Therefore, these terms are defined based on the entire contents of the present specification.
As shown in fig. 1 to 5, an electric cross arm comprises two clamping devices 1, a connecting piece 2, two cross arm groups 3 and two reinforcing rods 4, wherein the two clamping devices 1 are connected through the connecting piece 2, the cross arm groups 3 are installed on the outer sides of the clamping devices 1, the two reinforcing rods 4 are arranged between the two cross arm groups 3, and the two reinforcing rods 4 are arranged on the left and right.
The clamping device 1 comprises a clamping frame 11, a connecting rod 12, a placing frame 13, a resistance reducing ball 14, a return spring 15, a corresponding block 16 and an assembling mechanism 17, wherein a working cavity is formed in the clamping frame 11, the working cavity is connected with the connecting rod 12 in a sliding fit mode, the placing frame 13 is uniformly arranged on the inner wall of the connecting rod 12, the resistance reducing ball 14 is arranged in the placing frame 13, the contact abrasion between the inner wall of the clamping frame 11 and the outer wall of a power rod when the clamping frame 11 is not locked is reduced due to the design of the resistance reducing ball 14, after the two clamping frames 11 are tightly held, the resistance reducing ball 14 is driven to retract into the working cavity by jacking the corresponding block 16 of the other clamping frame 11 after the connecting rod 12 is pressed, at the moment, the outer wall of the power rod is in direct contact with the inner wall of the clamping frame 11, the return spring 15 is connected between the connecting rod 12 and the inner wall of the working cavity, the return spring 15, the equipment mechanism 17 is installed to the outer end of holding frame 11, and personnel climb to suitable high back, wrap up the power pole through two holding frames 11 on two clamping device 1, thereby hold tightly the power pole to the two locking through connecting piece 2.
The cross arm group 3 include screens 31, two cross arms 32, locating hole 33, separating mechanism 34 and two strengthening ribs 35, the left and right sides both ends of screens 31 are equipped with two cross arms 32, the locating hole 33 has been seted up on every cross arm 32, be equipped with separating mechanism 34 on the cross arm 32, and the position between separating mechanism 34 and the locating hole 33 is corresponding, the joint has strengthening rib 35 between cross arm 32 and the screens 31, strengthening rib 35 plays the stable effect of enhancement, install corresponding quantity's insulator according to actual conditions, be connected with the insulator through locating hole 33, trigger separating mechanism 34 after connecting and change, thereby separate with adjacent insulator and place, the condition that the interference appears in the contact between the electric wire on the adjacent insulator has been reduced.
The separating mechanism 34 includes a housing 341, a working frame 342, a linkage post 343, a connecting spring 344, and two separating branches 345, the housing 341 is installed at the lower end of the cross arm 32, the working frame 342 is installed inside the housing 341, an air cavity is opened inside the working frame 342, the middle part of the air cavity is connected with the linkage post 343 through the connecting spring 344, the connecting spring 344 plays a role of resetting, the linkage post 343 and the positioning hole 33 are arranged up and down correspondingly, the two separating branches 345 are arranged at the left and right ends of the air cavity, during specific work, after the insulator is installed in the positioning hole 33, the lower end of the insulator presses down the linkage post 343, the two rubber posts 3451 are synchronously extruded upwards under the action of air pressure, and the separating plate 3452 which ascends synchronously plays a role of separating.
The assembly mechanism 17 include screens frame 171, screens piece 172 and setting element 173, screens frame 171 installs in the outer end of holding frame 11, screens piece 172 is installed to the inner wall of screens frame 171, the outer end of screens frame 171 is connected with setting element 173 through sliding fit's mode, concrete during operation, go into screens piece 31 card to screens frame 171, thereby insert setting element 173 down and carry out spacingly to the outer end of screens piece 31, lock the two through locking bolt.
The screens 31 and the screens 172 are connected in an embedded manner, the positioning part 173 and the screens 31 are connected through locking bolts, and the embedded connection between the screens 31 and the screens 172 and the bolt connection between the positioning part 173 and the screens 31 ensure the locking degree between the screens 31 and the assembling mechanism 17.
The inner ends of the cross arms 32 are connected with the clamping pieces 31 in an embedded mode, the distance between the adjacent positioning holes 33 on each cross arm 32 is gradually shortened from inside to outside, the bearing force of the outer ends of the cross arms 32 is smaller than that of the inner ends, the shortening of the distance ensures that the weight of the insulators is close to the inner ends of the cross arms 32 after the insulators are installed, and the separation mechanism 34 has a separation effect, so that the distance between the adjacent insulators is small, and the possibility of mutual interference is reduced.
The linkage column 343 comprises a linkage rod 3431, a piston plate 3432 and a rotating disc 3433, the piston plate 3432 is mounted at the lower end of the linkage rod 3431, the piston plate 3432 is attached to the inner wall of the air cavity, air tightness is guaranteed, the upper end of the linkage rod 3431 is connected with the rotating disc 3433 in a rotating fit manner, when the insulator is in threaded connection with the positioning hole 33, the lower end of the insulator descends in a spiral manner, and the rotating disc 3433 is in rotating connection, so that the linkage rod 3431 cannot rotate.
The dividing branched chain 345 comprises a rubber column 3451, a dividing plate 3452 and a sealing cover 3453, the dividing plate 3452 is connected with the cross arm 32 in a sliding fit manner, the sealing cover 3453 is connected between the dividing plate 3452 and the cross arm 32, the sealing cover 3453 is arranged to play a sealing protection role, and the rubber column 3451 is arranged at the lower end of the dividing plate 3452.
The rubber column 3451 is tightly attached to the air cavity, so that the air tightness is improved.
The upper end of strengthening rib 35 be connected for the joint between with cross arm 32, be connected for the joint between the inner of strengthening rib 35 and the screens piece 31, the stability of installation has been improved in setting up of strengthening rib 35.
When in work:
s1, ground assembly: the clamping piece 31 is butted with the cross arm 32, and the clamping piece and the cross arm are further structurally stabilized through the reinforcing rib 35;
s2, holding and fixing: the electric power pole clamp is transported to the upper end of an electric power pole, and the two clamping frames 11 are locked through the connecting piece 2, so that the two clamping frames 11 tightly hold and fix the electric power pole;
s3, assembling in the air: the clamping piece 31 is clamped into the clamping frame 171, the positioning piece 173 is inserted downwards to limit the outer end of the clamping piece 31, the clamping piece and the clamping frame are locked through a locking bolt, and the two cross arms 32 which are arranged in front and at the back are connected through the reinforcing rod 4;
s4, mounting the insulator: the insulators with corresponding quantity are installed according to actual conditions, the insulators are connected with the insulators through the positioning holes 33, the adjacent insulators are separated through the separating mechanisms 34, the condition that interference occurs when wires on the adjacent insulators are in contact is reduced, and the wires are connected through the insulators.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (8)
1. The utility model provides an electric power cross arm, includes two clamping device (1), connecting piece (2), two cross arm groups (3) and two stiffeners (4), its characterized in that: the two clamping devices (1) are connected through a connecting piece (2), cross arm groups (3) are installed on the outer sides of the clamping devices (1), two reinforcing rods (4) are arranged between the two cross arm groups (3), and the two reinforcing rods (4) are arranged left and right;
the clamping device (1) comprises a clamping frame (11), a connecting rod (12), a placing frame (13), a resistance reducing ball (14), a return spring (15), a corresponding block (16) and an assembling mechanism (17), wherein a working cavity is formed in the clamping frame (11), the working cavity is connected with the connecting rod (12) in a sliding fit mode, the placing frame (13) is uniformly arranged on the inner wall of the connecting rod (12), the resistance reducing ball (14) is arranged in the placing frame (13), the return spring (15) is connected between the connecting rod (12) and the inner wall of the working cavity, the corresponding block (16) is installed at the inner end of the clamping frame (11), and the assembling mechanism (17) is installed at the outer end of the clamping frame (11);
the cross arm group (3) comprises a clamping piece (31), two cross arms (32), positioning holes (33), separating mechanisms (34) and two reinforcing ribs (35), the two cross arms (32) are arranged at the left end and the right end of the clamping piece (31), each cross arm (32) is provided with a positioning hole (33), each cross arm (32) is provided with a separating mechanism (34), the positions of the separating mechanisms (34) and the positioning holes (33) correspond to each other, and the reinforcing ribs (35) are clamped between the cross arms (32) and the clamping piece (31);
the separation mechanism (34) comprises a shell (341), a working frame (342), a linkage column (343), a connecting spring (344) and two separation branched chains (345), the shell (341) is installed at the lower end of the cross arm (32), the working frame (342) is installed inside the shell (341), an air cavity is formed inside the working frame (342), the middle of the air cavity is connected with the linkage column (343) through the connecting spring (344), the linkage column (343) and the positioning hole (33) are arranged vertically and correspondingly, and the two separation branched chains (345) are arranged at the left end and the right end of the air cavity;
stiffener (4) including the body of rod (41) and two inserts (42), both ends cover is equipped with two inserts (42) around the body of rod (41), and be the clamping connection between insert (42) and the body of rod (41).
2. An electrical cross-arm according to claim 1, wherein: the assembly mechanism (17) comprises a clamping frame (171), clamping blocks (172) and positioning pieces (173), the clamping frame (171) is installed at the outer end of the clamping frame (11), the clamping blocks (172) are installed on the inner wall of the clamping frame (171), and the outer end of the clamping frame (171) is connected with the positioning pieces (173) in a sliding fit mode.
3. An electrical cross-arm according to claim 2, wherein: the clamping piece (31) is connected with the clamping block (172) in an embedded mode, and the positioning piece (173) is connected with the clamping piece (31) through a locking bolt.
4. An electrical cross-arm according to claim 1, wherein: the inner ends of the cross arms (32) are connected with the clamping pieces (31) in an embedded mode, and the distance between adjacent positioning holes (33) on each cross arm (32) is gradually shortened from inside to outside.
5. An electrical cross-arm according to claim 1, wherein: the linkage column (343) comprises a linkage rod (3431), a piston plate (3432) and a rotating disc (3433), the piston plate (3432) is installed at the lower end of the linkage rod (3431), the piston plate (3432) is attached to the inner wall of the air cavity, and the upper end of the linkage rod (3431) is connected with the rotating disc (3433) in a rotating fit manner.
6. An electrical cross-arm according to claim 1, wherein: the separating branched chain (345) comprises a rubber column (3451), a separating plate (3452) and a sealing cover (3453), the separating plate (3452) is connected with the cross arm (32) in a sliding fit manner, the sealing cover (3453) is connected between the separating plate (3452) and the cross arm (32), and the rubber column (3451) is installed at the lower end of the separating plate (3452).
7. An electrical cross-arm according to claim 6, wherein: the rubber column (3451) and the air cavity are in a close fit state.
8. An electrical cross-arm according to claim 1, wherein: the upper end of the reinforcing rib (35) is connected with the cross arm (32) in a clamping manner, and the inner end of the reinforcing rib (35) is connected with the clamping piece (31) in a clamping manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010700375.4A CN111636752B (en) | 2020-07-20 | 2020-07-20 | Electric power cross arm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010700375.4A CN111636752B (en) | 2020-07-20 | 2020-07-20 | Electric power cross arm |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111636752A CN111636752A (en) | 2020-09-08 |
| CN111636752B true CN111636752B (en) | 2021-03-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010700375.4A Active CN111636752B (en) | 2020-07-20 | 2020-07-20 | Electric power cross arm |
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| CN (1) | CN111636752B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112886521B (en) * | 2021-01-28 | 2022-08-26 | 河北凯天电力器材有限公司 | Power line cross arm |
| CN112928725B (en) * | 2021-02-24 | 2022-05-17 | 芜湖市凯鑫避雷器有限责任公司 | Windproof and anticorrosive mounting assembly for lightning arrester |
| CN114135144B (en) * | 2021-11-09 | 2023-06-02 | 东台市新杰科机械有限公司 | Assembled cross arm structure applied to electric tower |
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|---|---|---|---|---|
| JPH1075520A (en) * | 1996-07-01 | 1998-03-17 | Kawasoo Tekuseru Kk | Insulator attachment fitting and pole mounting method using the fitting |
| KR20060023620A (en) * | 2004-09-10 | 2006-03-15 | 양희성 | Wire-changing device of electric pole |
| JP2009100581A (en) * | 2007-10-18 | 2009-05-07 | Chugoku Electric Power Co Inc:The | Cable latching arm |
| CN203821940U (en) * | 2014-03-15 | 2014-09-10 | 国网山东省电力公司潍坊供电公司 | Intelligent equipment installation rack capable of being quickly assembled |
| CN210182987U (en) * | 2019-08-19 | 2020-03-24 | 湖州嘻旺建材贸易有限公司 | Cable supporting device |
| CN111193233A (en) * | 2020-01-10 | 2020-05-22 | 国网山东省电力公司广饶县供电公司 | A electric power erection equipment for cable erection |
| CN110778203B (en) * | 2019-11-14 | 2020-07-14 | 湖南恒力通电气设备科技有限公司 | Power line accessory wire cross arm |
-
2020
- 2020-07-20 CN CN202010700375.4A patent/CN111636752B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1075520A (en) * | 1996-07-01 | 1998-03-17 | Kawasoo Tekuseru Kk | Insulator attachment fitting and pole mounting method using the fitting |
| KR20060023620A (en) * | 2004-09-10 | 2006-03-15 | 양희성 | Wire-changing device of electric pole |
| JP2009100581A (en) * | 2007-10-18 | 2009-05-07 | Chugoku Electric Power Co Inc:The | Cable latching arm |
| CN203821940U (en) * | 2014-03-15 | 2014-09-10 | 国网山东省电力公司潍坊供电公司 | Intelligent equipment installation rack capable of being quickly assembled |
| CN210182987U (en) * | 2019-08-19 | 2020-03-24 | 湖州嘻旺建材贸易有限公司 | Cable supporting device |
| CN110778203B (en) * | 2019-11-14 | 2020-07-14 | 湖南恒力通电气设备科技有限公司 | Power line accessory wire cross arm |
| CN111193233A (en) * | 2020-01-10 | 2020-05-22 | 国网山东省电力公司广饶县供电公司 | A electric power erection equipment for cable erection |
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| CN111636752A (en) | 2020-09-08 |
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Inventor after: Luo Chao Inventor after: Cui Pingping Inventor before: Cui Pingping |
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Effective date of registration: 20210210 Address after: 421000 No.398 Jiefang West Road, Zhengxiang District, Hengyang City, Hunan Province Applicant after: Hunan changneng Power Materials Co.,Ltd. Address before: 237200 xiaotai formation 08, miaogangji village, xiafuqiao Town, Huoshan County, Lu'an City, Anhui Province Applicant before: Cui Pingping |
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