CN111564802B - Compression-resistant deformation-resistant electric power fitting and production method thereof - Google Patents
Compression-resistant deformation-resistant electric power fitting and production method thereof Download PDFInfo
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- CN111564802B CN111564802B CN202010548291.3A CN202010548291A CN111564802B CN 111564802 B CN111564802 B CN 111564802B CN 202010548291 A CN202010548291 A CN 202010548291A CN 111564802 B CN111564802 B CN 111564802B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G7/00—Overhead installations of electric lines or cables
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G7/00—Overhead installations of electric lines or cables
- H02G7/02—Devices for adjusting or maintaining mechanical tension, e.g. take-up device
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G7/00—Overhead installations of electric lines or cables
- H02G7/05—Suspension arrangements or devices for electric cables or lines
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Abstract
The invention discloses a compression-resistant deformation-resistant electric power fitting and a production method thereof, and the compression-resistant deformation-resistant electric power fitting comprises a U-shaped support frame, wherein a rod body of the U-shaped support frame is square, a threaded rod A is additionally arranged at the front end of the left side of the U-shaped support frame, a threaded rod B is arranged on the right side of the U-shaped support frame, and the threaded rod A and the threaded rod B are integrally cast and connected with the U-shaped support frame; and a wire drawing device is additionally arranged between the threaded rod A and the threaded rod B. The compression-resistant deformation-resistant electric power fitting and the production method thereof provided by the invention have the following advantages: 1. the Y-shaped guide frame is arranged to limit the movement direction of the wire pulling device, so that the stability of the wire pulling is improved, and the deformation degree caused by unstable stress in the wire pulling process is reduced in a phase change manner. 2. Install firm frame additional and improved the resistance to compression anti-deformation ability of U type support frame. 3. The compression resistance and deformation resistance of the threaded rod A and the threaded rod B are greatly improved by additionally arranging the fixing sleeve.
Description
Technical Field
The invention relates to the technical field of electric power fittings, in particular to an electric power fitting with compression resistance and deformation resistance and a production method thereof.
Background
The stickers or aluminum metal accessories widely used for power transmission lines are collectively called as hardware fittings, and the hardware fittings have various types and different purposes, such as wire clamps for installing wires, various hanging rings for forming insulator strings, various crimping pipes and repairing pipes for connecting the wires, various spacers on split wires and the like, and various wire pulling hardware fittings for various towers.
And (3) wire pulling hardware: its main effect is acted as go-between when assuming high-tension line, because high-tension line is when acting as go-between, the circuit is long, and the gravity and the counter tension that act as go-between bore are huge, therefore bare-handed act as go-between can't realize, consequently need use the wire stretcher, nevertheless, because the wire stretcher is when using, the strength that bears is very big, consequently requires very well to its self intensity, needs to have very good compressive capacity and anti-deformation ability.
Based on the requirements, the pressure-resistant and deformation-resistant electric power fitting and the production method thereof are provided.
Disclosure of Invention
The invention aims to provide a compression-resistant deformation-resistant electric power fitting and a production method thereof, wherein a stay wire is high in stability and strong in self compression-resistant and deformation-resistant capabilities, so that the problems that the stay wire is easy to deform, short in service life and troublesome in stay wire under the conditions of bearing gravity and large counter-tension when a high-voltage line is assumed in the background technology are solved.
In order to achieve the purpose, the invention provides the following technical scheme: the compression-resistant anti-deformation electric power fitting comprises a U-shaped support frame, wherein a rod body of the U-shaped support frame is square, a threaded rod A is additionally arranged at the front end of the left side of the U-shaped support frame, a threaded rod B is arranged on the right side of the U-shaped support frame, and the threaded rod A and the threaded rod B are integrally cast and connected with the U-shaped support frame; a wire drawing device is additionally arranged between the threaded rod A and the threaded rod B and comprises a wire drawing head, a square sleeve rod A and a square sleeve rod B, the square sleeve rod A and the square sleeve rod B are symmetrically welded on two sides of the wire drawing head, the square sleeve rod A is sleeved on the threaded rod A, and the square sleeve rod B is sleeved on the threaded rod B; the middle end of the wire drawing head is provided with a wire passing hole A, the upper end of the wire drawing head is provided with a square groove, the square groove is communicated with the wire passing hole A, and through holes are formed in the wire drawing head on two sides of the square groove; the upper end of the wire drawing head is provided with a wire fixing cover plate, the lower end of the wire fixing cover plate is integrally welded with a square block, the square block is inserted into the square groove, and the lower end of the square block is in an irregular toothed shape; threaded rods C are additionally arranged on two sides of the wire fixing cover plate, penetrate through the through holes and are arranged at the lower end of the wire drawing head, and are fastened on the wire drawing head through nuts; all connect the propelling movement nut on threaded rod A and the threaded rod B soon to cup jointed the gasket, the propelling movement nut on threaded rod A and the threaded rod B all sets up two.
Preferably, the inner side of the U-shaped support frame is provided with a positioning groove, the inner side of the U-shaped support frame is provided with a stabilizing frame, the stabilizing frame comprises a left support rod, a right support rod, a first connecting rod, a second connecting rod and a third connecting rod, the left support rod and the right support rod are fixedly connected through the first connecting rod, the second connecting rod and the third connecting rod, and the left support rod and the right support rod are fixedly sleeved in the positioning groove on the inner side of the U-shaped support frame; square locating holes A are formed in the middle ends of the first connecting rod, the second connecting rod and the third connecting rod.
Preferably, the bottom end of the U-shaped support frame is provided with a square positioning hole B in a penetrating manner, the size of the square positioning hole B is the same as that of the square positioning hole a, and the centers of the square positioning hole B and the square positioning hole a are on the same straight line.
Preferably, a Y-shaped guide frame is additionally arranged on the inner side of the wire drawing head, the front end of the Y-shaped guide frame is fixedly welded with the inner side end of the wire drawing head, and the rear end of the Y-shaped guide frame is sleeved in the square positioning hole A.
Preferably, the front end of threaded rod A and threaded rod B adds and is equipped with fixed cover, the both sides of fixed cover and threaded rod A and threaded rod B fixed weld, the middle-end of fixed cover has been seted up and has been crossed line hole B, crosses line hole B and cross the aperture of line hole A equal, and the center is on same straight line.
Preferably, the rear end positioning rod of the Y-shaped guide frame is subjected to arc edge polishing treatment, and the section of the rear end positioning rod of the Y-shaped guide frame is the same as the end face of the square positioning hole A.
The invention provides another technical scheme that: a production method of a compression-resistant and deformation-resistant electric power fitting comprises the following steps:
s1: the middle ends of the first connecting rod, the second connecting rod and the third connecting rod are provided with square positioning holes A, the bottom end of the U-shaped support frame is provided with square positioning holes B in a penetrating mode, then the left supporting rod, the right supporting rod, the first connecting rod, the second connecting rod and the third connecting rod are fixedly welded into a whole to form a stabilizing frame, and the stabilizing frame is arranged in a positioning groove on the inner side of the U-shaped support frame;
s2: integrally pouring and connecting the threaded rod A and the threaded rod B to the front end of the U-shaped support frame;
s3: fixedly welding the Y-shaped guide frame on the inner side of the wire drawing device;
s4: the wire drawing device is sleeved on the threaded rod A and the threaded rod B, the gasket is sleeved on the threaded rod A and the threaded rod B, and the pushing nut is screwed on the threaded rod A and the threaded rod B.
S5: and fixedly welding the fixed sleeve at the front ends of the threaded rod A and the threaded rod B.
Compared with the prior art, the invention has the beneficial effects that: the compression-resistant deformation-resistant electric power fitting and the production method thereof provided by the invention have the following advantages:
1. the Y-shaped guide frame is arranged to limit the movement direction of the wire pulling device, so that the stability of the wire pulling is improved, and the deformation degree caused by unstable stress in the wire pulling process is reduced in a phase change manner.
2. Through install the steadiness frame additional in the inboard of U type support frame, improved the steadiness of U type support frame, increased the crushing resistance of U type support frame, reduced the deformation that the U type support frame produced when the atress, improved the resistance to compression anti-deformation ability.
3. Fixed cover at threaded rod A and threaded rod B front end additional installation realizes fixing threaded rod A and threaded rod B both ends, has improved threaded rod A and threaded rod B's rigidity, avoids threaded rod A and threaded rod B to take place great tortuous at the atress in-process, has improved threaded rod A and threaded rod B's resistance to compression anti-deformation ability greatly.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the wire-fixing cover plate according to the present invention in an open state;
FIG. 3 is a view of the U-shaped supporting frame, the threaded rod A, the threaded rod B and the connection state of the wire pulling device;
FIG. 4 is a schematic view of the fixing frame of the present invention;
FIG. 5 is a schematic view of the present invention showing the retracted state of the pulling wire;
fig. 6 is a side view of the pull cord device of the present invention.
In the figure: 1. a U-shaped support frame; 2. a threaded rod A; 3. a threaded rod B; 4. a wire pulling device; 41. a wire drawing head; 42. a square loop bar A; 43. a square loop bar B; 44. a wire passing hole A; 45. a square groove; 46. a through hole; 47. a wire fixing cover plate; 48. a square block; 49. a threaded rod C; 5. positioning a groove; 6. a stabilizing frame; 61. a left support bar; 62. a right support bar; 63. a first connecting rod; 64. a second connecting rod; 65. a third connecting rod; 66. a square positioning hole A; 7. a square positioning hole B; 8. a Y-shaped guide frame; 9. fixing a sleeve; 10. a wire passing hole B; 11. pushing the nut; 12. and (7) a gasket.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, the compression-resistant and deformation-resistant electric power fitting comprises a U-shaped support frame 1, wherein a rod body of the U-shaped support frame 1 is square, a threaded rod a2 is additionally arranged at the front end of the left side of the U-shaped support frame 1, a threaded rod B3 is arranged on the right side of the U-shaped support frame 1, and the threaded rod a2 and the threaded rod B3 are integrally connected with the U-shaped support frame 1 in a pouring manner; a wire drawing device 4 is additionally arranged between the threaded rod A2 and the threaded rod B3, the wire drawing device 4 comprises a wire drawing head 41, a square loop bar A42 and a square loop bar B43, the square loop bar A42 and the square loop bar B43 are symmetrically welded on two sides of the wire drawing head 41, the square loop bar A42 is sleeved on the threaded rod A2, and the square loop bar B43 is sleeved on the threaded rod B3; the middle end of the wire drawing head 41 is provided with a wire passing hole A44, the upper end of the wire drawing head 41 is provided with a square groove 45, the square groove 45 is communicated with the wire passing hole A44, and through holes 46 are formed in the wire drawing head 41 at two sides of the square groove 45; the upper end of the wire drawing head 41 is provided with a wire fixing cover plate 47, the lower end of the wire fixing cover plate 47 is integrally welded with a square block 48, the square block 48 is inserted in the square groove 45, and the lower end of the square block 48 is in an irregular meshed tooth shape; threaded rods C49 are additionally arranged on two sides of the wire fixing cover plate 47, the threaded rods C49 penetrate through the through holes 46 and are arranged at the lower end of the wire drawing head 41 and are fastened on the wire drawing head 41 through nuts; the threaded rod A2 and the threaded rod B3 are both screwed with pushing nuts 11 and sleeved with gaskets 12, and the two pushing nuts 11 are arranged on the threaded rod A2 and the threaded rod B3.
Referring to fig. 3-4, a positioning groove 5 is formed in the inner side of the U-shaped support frame 1, and a stabilizing frame 6 is disposed on the inner side of the U-shaped support frame 1, the stabilizing frame 6 includes a left support rod 61, a right support rod 62, a first connecting rod 63, a second connecting rod 64 and a third connecting rod 65, the left support rod 61 and the right support rod 62 are fastened and connected by the first connecting rod 63, the second connecting rod 64 and the third connecting rod 65, and the left support rod 61 and the right support rod 62 are sleeved in the positioning groove 5 on the inner side of the U-shaped support frame 1; the middle ends of the first connecting rod 63, the second connecting rod 64 and the third connecting rod 65 are all provided with square positioning holes A66; the bottom end of the U-shaped support frame 1 is provided with a square positioning hole B7 in a penetrating mode, the size of the square positioning hole B7 is the same as that of the square positioning hole A66, and the centers of the square positioning holes are on the same straight line.
Referring to fig. 2, a Y-shaped guide frame 8 is additionally arranged on the inner side of the wire drawing head 41, the front end of the Y-shaped guide frame 8 is fixedly welded to the inner side end of the wire drawing head 41, the rear end of the Y-shaped guide frame 8 is sleeved in the square positioning hole a66, the rear end positioning rod of the Y-shaped guide frame 8 is subjected to arc edge polishing treatment, and the section of the rear end positioning rod of the Y-shaped guide frame 8 is the same as the end surface of the square positioning hole a 66; fixed cover 9 is equipped with additional to the front end of threaded rod A2 and threaded rod B3, and fixed cover 9's both sides and threaded rod A2 and threaded rod B3 fixed welding have been seted up at fixed cover 9's middle-end and have been crossed line hole B10, cross line hole B10 and cross the aperture of line hole A44 and equal, and the center is on same straight line.
In order to show the production process of the compression-resistant and deformation-resistant electric power fitting, the embodiment provides a production method of the compression-resistant and deformation-resistant electric power fitting, which includes the following steps:
the first step is as follows: the middle ends of the first connecting rod 63, the second connecting rod 64 and the third connecting rod 65 are provided with square positioning holes A66, the bottom end of the U-shaped support frame 1 is provided with a square positioning hole B7 in a penetrating manner, then the left supporting rod 61, the right supporting rod 62, the first connecting rod 63, the second connecting rod 64 and the third connecting rod 65 are fixedly welded into a whole to form a stabilizing frame 6, and the stabilizing frame is additionally arranged in a positioning groove 5 on the inner side of the U-shaped support frame 1;
the second step is that: integrally pouring and connecting a threaded rod A2 and a threaded rod B3 at the front end of the U-shaped support frame 1;
the third step: fixedly welding the Y-shaped guide frame 8 on the inner side of the wire drawing device 4;
the fourth step: the wire pulling device 4 is sleeved on the threaded rod A2 and the threaded rod B3, the washer 12 is sleeved on the threaded rod A2 and the threaded rod B3, and the pushing nut 11 is screwed on the threaded rod A2 and the threaded rod B3.
The fifth step: the fixing sleeve 9 is fixedly welded at the front ends of the threaded rod A2 and the threaded rod B3.
Please refer to fig. 1-6; in the state of not pulling the wire, the positioning rod at the rear end of the Y-shaped guide frame 8 is positioned in the third connecting rod 65, at this time, the wire harness is inserted into the wire passing hole a44, then the bolt at the lower end of the threaded rod C49 is fastened to drive the wire fixing cover plate 47 to press down, so that the square block 48 at the lower end of the wire fixing cover plate 47 presses the wire harness in the wire passing hole a44, and one end of the wire harness is fixed, then the pushing nut 11 is rotated to push the wire pulling device 4 to move towards one side of the U-shaped support frame 1, thereby realizing the wire pulling, the wire pulling is realized by adopting the way that the wrench rotates the pushing nut 11, the labor is saved, the operation is convenient, the Y-shaped guide frame 8 is arranged to limit the moving direction of the wire pulling device 4, the stability of the wire pulling is improved, please refer to fig. 5, this state is the position state of the wire pulling device 4, at this time, the wire-fixing cover plate 47 is loosened.
When the wire is pulled, the U-shaped support frame 1, the threaded rod A2 and the threaded rod B3 are stressed greatly, so that the problem of deformation is easily caused, and the stabilizing frame 6 is additionally arranged on the inner side of the U-shaped support frame 1 to improve the stability of the U-shaped support frame 1, prevent the U-shaped support frame 1 from deforming due to stress deformation and increase the pressure resistance of the U-shaped support frame 1; after the fixing sleeve 9 is additionally arranged at the front ends of the threaded rod A2 and the threaded rod B3, the two ends of the threaded rod A2 and the threaded rod B3 can be fixed, so that the situation that the long-strip-shaped threaded rod A2 and the threaded rod B3 are bent when stressed is avoided, and the threaded rod A2 and the threaded rod B3 deform when the threaded rod A2 and the threaded rod B3538 are used for a long time in a bent state, therefore, the fixing sleeve 9 is arranged, and the compression resistance and deformation resistance of the threaded rod A2 and the threaded rod B3; the Y-shaped guide frame 8 arranged at the same time limits the movement direction of the stay wire device 4, improves the stability of the stay wire, and reduces the deformation degree of the stay wire due to unstable stress.
In summary, the following steps: the compression-resistant deformation-resistant electric power fitting and the production method thereof provided by the invention have the following advantages:
1. the Y-shaped guide frame 8 is arranged to limit the movement direction of the wire pulling device 4, so that the stability of the wire pulling is improved, and the deformation degree caused by unstable stress in the wire pulling process is reduced in a phase change manner.
2. Through install steady rest 6 additional in U type support frame 1's inboard, improved U type support frame 1's steadiness, increased U type support frame 1's crushing resistance, reduced the deformation that U type support frame 1 produced when the atress, improved the resistance to compression anti-deformation ability.
3. Fixed cover 9 of installing additional at threaded rod A2 and threaded rod B3 front end realizes fixing threaded rod A2 and threaded rod B3 both ends, has improved threaded rod A2 and threaded rod B3's rigidity, avoids threaded rod A2 and threaded rod B3 to take place great tortuous in the atress process, has improved threaded rod A2 and threaded rod B3's resistance to compression anti-deformation ability greatly.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (4)
1. The compression-resistant anti-deformation electric power fitting is characterized by comprising a U-shaped support frame (1), wherein a rod body of the U-shaped support frame (1) is square, a threaded rod A (2) is additionally arranged at the front end of the left side of the U-shaped support frame (1), a threaded rod B (3) is arranged on the right side of the U-shaped support frame (1), and the threaded rod A (2) and the threaded rod B (3) are integrally cast and connected with the U-shaped support frame (1); a wire drawing device (4) is additionally arranged between the threaded rod A (2) and the threaded rod B (3), the wire drawing device (4) comprises a wire drawing head (41), a square loop bar A (42) and a square loop bar B (43), the square loop bar A (42) and the square loop bar B (43) are symmetrically welded on two sides of the wire drawing head (41), the square loop bar A (42) is sleeved on the threaded rod A (2), and the square loop bar B (43) is sleeved on the threaded rod B (3); the middle end of the wire drawing head (41) is provided with a wire passing hole A (44), the upper end of the wire drawing head (41) is provided with a square groove (45), the square groove (45) is communicated with the wire passing hole A (44), and through holes (46) are formed in the wire drawing head (41) on two sides of the square groove (45); the upper end of the wire drawing head (41) is provided with a wire fixing cover plate (47), the lower end of the wire fixing cover plate (47) is integrally welded with a square block (48), the square block (48) is inserted into the square groove (45), and the lower end of the square block (48) is in an irregular toothed shape; threaded rods C (49) are additionally arranged on two sides of the wire fixing cover plate (47), the threaded rods C (49) penetrate through the through holes (46) to be arranged at the lower end of the wire drawing head (41), and are fastened on the wire drawing head (41) by nuts; the two pushing nuts (11) on the threaded rod A (2) and the threaded rod B (3) are respectively screwed with the pushing nut (11) and sleeved with the gasket (12), and the two pushing nuts (11) on the threaded rod A (2) and the threaded rod B (3) are respectively arranged;
the inner side of the U-shaped support frame (1) is provided with a positioning groove (5), the inner side of the U-shaped support frame (1) is provided with a stabilizing frame (6), the stabilizing frame (6) comprises a left support rod (61), a right support rod (62), a first connecting rod (63), a second connecting rod (64) and a third connecting rod (65), the left support rod (61) and the right support rod (62) are fixedly connected through the first connecting rod (63), the second connecting rod (64) and the third connecting rod (65), and the left support rod (61) and the right support rod (62) are sleeved in the positioning groove (5) on the inner side of the U-shaped support frame (1); the middle ends of the first connecting rod (63), the second connecting rod (64) and the third connecting rod (65) are provided with square positioning holes A (66);
a Y-shaped guide frame (8) is additionally arranged on the inner side of the wire drawing head (41), the front end of the Y-shaped guide frame (8) is fixedly welded with the inner side end of the wire drawing head (41), and the rear end of the Y-shaped guide frame (8) is sleeved in a square positioning hole A (66);
threaded rod A (2) and the front end of threaded rod B (3) add and are equipped with fixed cover (9), the both sides and threaded rod A (2) of fixed cover (9) and threaded rod B (3) fixed weld, the middle-end of fixed cover (9) has been seted up and has been crossed line hole B (10), crosses line hole B (10) and equals with the aperture of crossing line hole A (44), and the center is on same straight line.
2. The electric power fitting against compression and deformation of claim 1, wherein: the bottom end of the U-shaped support frame (1) is provided with a square positioning hole B (7) in a penetrating mode, the size of the square positioning hole B (7) is the same as that of the square positioning hole A (66), and the centers of the square positioning holes are on the same straight line.
3. The electric power fitting against compression and deformation of claim 1, wherein: and the rear end positioning rod of the Y-shaped guide frame (8) is subjected to arc edge polishing treatment, and the section of the rear end positioning rod of the Y-shaped guide frame (8) is the same as the end face of the square positioning hole A (66).
4. The method for producing the compressive and deformation resistant electric power fitting as claimed in claim 1, comprising the steps of:
s1: the middle ends of a first connecting rod (63), a second connecting rod (64) and a third connecting rod (65) are provided with square positioning holes A (66), the bottom end of a U-shaped support frame (1) is provided with square positioning holes B (7) in a penetrating mode, then a left supporting rod (61), a right supporting rod (62), the first connecting rod (63), the second connecting rod (64) and the third connecting rod (65) are fixedly welded into a whole to form a stabilizing frame (6), and the stabilizing frame is to be additionally arranged in a positioning groove (5) on the inner side of the U-shaped support frame (1);
s2: integrally pouring and connecting the threaded rod A (2) and the threaded rod B (3) to the front end of the U-shaped support frame (1);
s3: fixedly welding a Y-shaped guide frame (8) on the inner side of the wire drawing device (4);
s4: the wire drawing device (4) is sleeved on the threaded rod A (2) and the threaded rod B (3), the gasket (12) is sleeved on the threaded rod A (2) and the threaded rod B (3), and the pushing nut (11) is screwed on the threaded rod A (2) and the threaded rod B (3);
s5: and fixedly welding the fixed sleeve (9) at the front ends of the threaded rod A (2) and the threaded rod B (3).
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| CN202010548291.3A CN111564802B (en) | 2020-06-16 | 2020-06-16 | Compression-resistant deformation-resistant electric power fitting and production method thereof |
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| CN202010548291.3A CN111564802B (en) | 2020-06-16 | 2020-06-16 | Compression-resistant deformation-resistant electric power fitting and production method thereof |
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| CN111564802B true CN111564802B (en) | 2021-07-16 |
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| CN209642176U (en) * | 2019-05-25 | 2019-11-15 | 安徽博晟亿电力科技有限公司 | A kind of stockbridge damper reset clamp device of anti-slip |
| CN110541910A (en) * | 2019-08-15 | 2019-12-06 | 江苏双汇电力发展股份有限公司 | adjustable crimping type stay wire hardware fitting and crimping method of stay wire hardware fitting and stay wire |
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