CN113363915A - Strain safety backup wire clamp - Google Patents
Strain safety backup wire clamp Download PDFInfo
- Publication number
- CN113363915A CN113363915A CN202110517365.1A CN202110517365A CN113363915A CN 113363915 A CN113363915 A CN 113363915A CN 202110517365 A CN202110517365 A CN 202110517365A CN 113363915 A CN113363915 A CN 113363915A
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- CN
- China
- Prior art keywords
- strain
- connecting piece
- wire
- clamp
- hanging plate
- 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.)
- Pending
Links
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 41
- 239000010959 steel Substances 0.000 claims abstract description 41
- 239000006096 absorbing agent Substances 0.000 claims abstract description 15
- 230000035939 shock Effects 0.000 claims abstract description 14
- 239000012211 strain insulator Substances 0.000 claims 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 4
- 229910052782 aluminium Inorganic materials 0.000 abstract description 4
- 239000004411 aluminium Substances 0.000 abstract 1
- 238000002788 crimping Methods 0.000 abstract 1
- 239000004020 conductor Substances 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
Images
Classifications
-
- 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
Landscapes
- Suspension Of Electric Lines Or Cables (AREA)
Abstract
The invention belongs to the technical field of safe backup wire clamps, and particularly relates to a strain safe backup wire clamp, which comprises a first hanging plate, a strain clamp, a lead, a steel pipe connecting piece, a connecting piece and a shock absorber, wherein: the strain clamp is connected with one end of the lead, the steel pipe connecting piece is sleeved with the other end of the lead, and two sides of the steel pipe connecting piece are connected with the shock absorber through the connecting piece; the first hanging plate is connected with the strain clamp and the shock absorber through the connecting piece. The application discloses a strain safety backup cable clamp, through peeling off suitable length with the outer aluminium strand of wire earlier, embolia the steel pipe connecting piece, again use hydraulic press crimping together with steel pipe and wire steel core, make steel pipe and steel core fixed together, compare in preformed helical backup cable clamp and wedge backup cable clamp, the form of hydraulic pressure connection is safe and reliable more, solves backup cable clamp bearing capacity low, takes place the problem of broken string easily.
Description
Technical Field
The invention relates to the technical field of safe backup wire clamps, in particular to a strain safe backup wire clamp.
Background
The important cross spanning line is an overhead transmission line spanning sections of a high-speed railway, an expressway, a first-level highway, a second-level navigation river, an important overhead transmission line and the like, when a lead is erected, the lead is easily damaged by a traditional compression strain clamp at the joint of the lead and a tower, or the service life of the overhead transmission line is seriously influenced by fatigue breakage, breakage accidents and the like, so that the defect of power failure accidents is caused. In order to eliminate the hidden dangers, the safety backup wire clamp is produced at the right moment, the occurrence of the safety backup wire clamp ensures that the wire can still strain the wire when an accident happens, the current is conducted, the loss caused by power failure due to the accident is reduced, and the time for rush repair is won.
When the wire safety backup wire clamp is in actual application, the wire clamp fails suddenly, so that a larger impact load can be caused to the backup wire clamp, the conventional wire safety backup wire clamp has two forms of a pre-twisted type and a wedge-shaped type, the wire clamps in the two forms have no impact-relieving effect, and the wire clamp is easy to damage in actual application. In practical application, the steel core of the inner layer of the wire mainly bears the tensile resistance of the wire, but the preformed and wedge-shaped wire clamps both apply force on the aluminum strand of the outer layer of the wire, and the steel core of the inner layer of the wire is not connected with the backup wire clamp, so that the backup wire clamp has low bearing capacity and is easy to have wire breakage accidents.
Disclosure of Invention
Because the steel core of the inner layer of the wire is mainly used for bearing the tensile force of sudden breakage of the wire at present, the traditional twisted wire clamp and the traditional wedge-shaped wire clamp both act the inner wire on the outer aluminum strand of the wire, and the steel core of the inner layer of the wire is not connected with a backup wire clamp, so that the backup wire clamp has low bearing capacity and is easy to have wire breakage accidents. The following applications are proposed to address the above problems:
a strain resistant safety backup cable clamp, comprising: first link plate, strain clamp, wire, steel pipe connecting piece, connecting piece and shock absorber, wherein: the strain clamp is connected with one end of the lead, the steel pipe sleeve connector is connected with the other end of the lead, and two sides of the steel pipe connector are connected with the shock absorber through the connectors; the first hanging plate is connected with the strain clamp and the shock absorber through the connecting piece.
Further, the damper includes: cylinder, piston rod and buffer spring, wherein: the piston rod is connected with the cylinder barrel through the buffer spring, the cylinder barrel is of an inner hollow structure, and the piston rod and the cylinder barrel form a pneumatic cylinder.
Further, the wire comprises a wire outer layer and a wire inner layer, and the wire inner layer is a steel core.
Furthermore, the steel pipe connecting piece is sleeved in the inner layer of the lead.
Further, the connecting piece is a buckle.
Furthermore, the steel pipe connecting piece is provided with a ring buckle mounting hole, and the ring buckle is provided with a connecting hole matched with the ring buckle mounting hole; and connecting the steel pipe connecting piece with the ring buckle based on the matching of the fastening piece with the ring buckle mounting hole and the connecting hole.
Furthermore, the steel pipe connecting piece is hydraulically connected with the inner layer of the lead.
Furthermore, the first hanging plate is provided with a ring buckle mounting hole, and the ring buckle is provided with a connecting hole matched with the ring buckle mounting hole of the first hanging plate; based on the matching of the fastener and the buckle mounting hole of the first hanging plate and the connecting hole, the first hanging plate is connected with the buckle.
Furthermore, the first hanging plate is connected with the second hanging plate through the ring buckle.
Furthermore, the second link plate is provided with a latch closure mounting hole, and the first link plate passes through the latch closure mounting hole with the second link plate is connected.
Compared with a preformed backup cable clamp and a wedge-shaped backup cable clamp, the hydraulic connection mode is safer and more reliable, and the problems that the backup cable clamp is low in bearing capacity and easy to break are solved.
Drawings
FIG. 1 is an isometric view of a strain backup clamp spanning structure according to the present invention;
FIG. 2 is a top view of the strain backup clamp structure of the present invention;
FIG. 3 is an isometric view of a dual conductor strain backup clamp structure of the present invention;
FIG. 4 is a structural view of the shock absorber of the present invention;
FIG. 5 is a structural view of the steel pipe connecting member according to the present invention.
The reference numerals are explained below:
1: a first hanging plate; 2: looping; 3: strain clamp; 4: a wire; 5: a steel pipe connecting piece; 6: a drainage plate; 7: a shock absorber; 8: a second hanging plate; 701: a cylinder barrel; 702: a piston rod; 703: a buffer spring.
Detailed Description
The embodiments of the present disclosure are described in detail below with reference to the accompanying drawings.
The embodiments of the present disclosure are described below with specific examples, and other advantages and effects of the present disclosure will be readily apparent to those skilled in the art from the disclosure in the specification. It is to be understood that the described embodiments are merely illustrative of some, and not restrictive, of the embodiments of the disclosure. The disclosure may be embodied or carried out in various other specific embodiments, and various modifications and changes may be made in the details within the description without departing from the spirit of the disclosure. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure.
Example one
A strain safety backup wire clamp is shown in figures 1 to 5 and comprises a first hanging plate 1, a ring buckle 2, a strain clamp 3, a lead 4, a steel pipe connecting piece 5, a drainage plate 6, a shock absorber 7 and a second hanging plate 8, wherein one end of the first hanging plate 1 is connected with a cross arm insulator of an iron tower on a power transmission iron tower, and the other end of the first hanging plate 1 is connected with the shock absorber 7 and the strain clamp 3 through a U-shaped hanging ring 2;
the strain clamp 3 is a compression type strain clamp, and the lead 4 and the strain clamp 3 are pressed together through a hydraulic press; the drainage plate 6 is connected with a jumper wire, and the jumper wire is used for connecting the other side of the lead 4 to play a role in drainage.
The strain clamp 3 is connected with one end of the lead 4, the steel pipe connecting piece 5 is connected with the other end of the lead 4, and the vibration absorber 7 is connected with the steel pipe connecting piece 5. The strain clamp 3 is connected with one end of the lead 4, when the lead 4 is broken suddenly, the impact force borne by the lead 4 can be transmitted to the strain clamp 3 through the lead 4, and the bearing capacity of the whole backup clamp is improved.
Further, in a preferred embodiment of the present application, as shown in fig. 1 to 4, the damper 7 is composed of a cylinder 701, a piston rod 702, and a buffer spring 703, the piston rod 702 is connected to the cylinder 701 through the buffer spring 703, the buffer spring 703 is compressed or stretched during the movement of the piston rod 702, so as to relieve the impact load of the lead 4, the piston rod 702 and the cylinder 701 constitute a pneumatic cylinder, so that a pressure difference is generated between the inside and the outside of the cylinder 701 during the extension and retraction of the piston rod 702, which can also relieve the impact load of the lead 4.
Further, in a preferred embodiment of the present application, as shown in fig. 1 to 3, the steel pipe connector 5 is connected to the damper 7 through a buckle 2.
When the impact force generated by the sudden fracture of the wire 4 acts on the piston rod 702 and moves relative to the cylinder barrel, and when the piston rod 702 moves in the cylinder barrel in a reciprocating manner, the air pressure in the pneumatic cylinder formed by the piston rod 702 and the cylinder barrel 703 in the shock absorber 7 changes, and the air pressure in the pneumatic cylinder generates a pressure difference with the atmospheric pressure, so that the influence of the impact force generated by the fracture of the wire on the strain clamp 3 can be reduced.
Further, in a preferred embodiment of the present application, as shown in fig. 1 to 3, the wire 4 is divided into an outer wire layer and an inner wire layer, and the inner wire layer is a steel core.
Further, in a preferred embodiment of the present application, as shown in fig. 1 to 3, the steel tube connecting member 5 is installed by peeling the outer aluminum strands of the wires to a proper length, sleeving the steel tube connecting member 5, and then pressing the steel tube and the steel core of the wires together by using a hydraulic press, so that the steel tube and the steel core are fixed together, which is safer and more reliable in hydraulic connection than a pre-twisted backup wire clamp and a wedge-shaped backup wire clamp.
Further, in a preferred embodiment of the present application, as shown in fig. 1 to 3, the dampers 7 are installed at both sides of the wire 4 to provide a double impact-attenuating effect to the wire 4.
Further, in a preferred embodiment of the present application, as shown in fig. 1 to 3, the damper 7 can be used for different wire types and different meteorological conditions by changing the initial position of the piston rod 702 thereof.
Further, in a preferred embodiment of the present application, the backup clip may be adapted for use with a dual split conductor line, as shown in fig. 3. First link plate 1 is the link plate of two independent wires 4, first link plate 1 passes through the latch closure is connected with second link plate 8, makes two independent wires 4 switch-ons form two split conductor circuits, the spare fastener is applicable to such two split conductor circuits equally, and not only is applicable to single conductor circuit.
Further, in the embodiment of the present application, the first hanging plate 1 is provided with a buckle mounting hole, and the buckle 2 is provided with a connecting hole matched with the buckle mounting hole of the first hanging plate; based on the matching of the fastener and the buckle mounting hole of the first hanging plate and the connecting hole, the first hanging plate 1 is connected with the buckle 2.
Further, in the embodiment of the present application, the first hanging plate 1 is connected to the second hanging plate 8 through the ring buckle 2.
Further, in this application embodiment, second link plate 8 is provided with the latch closure mounting hole, first link plate 1 pass through the latch closure mounting hole with second link plate 8 is connected.
In the description of the present invention, it is to be understood that the terms "intermediate", "length", "upper", "lower", "front", "rear", "vertical", "horizontal", "inner", "outer", "radial", "circumferential", and the like, indicate orientations and positional relationships that are based on the orientations and positional relationships shown in the drawings, are used for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the present invention.
In the present invention, unless otherwise expressly stated or limited, the first feature may be "on" the second feature in direct contact with the second feature, or the first and second features may be in indirect contact via an intermediate. "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The above description is for the purpose of illustrating embodiments of the invention and is not intended to limit the invention, and it will be apparent to those skilled in the art that any modification, equivalent replacement, or improvement made without departing from the spirit and principle of the invention shall fall within the protection scope of the invention.
Claims (10)
1. The utility model provides a strain insulator safety backup fastener which characterized in that includes: first link plate, strain clamp, wire, steel pipe connecting piece, connecting piece and shock absorber, wherein:
the strain clamp is connected with one end of the lead, the steel pipe connecting piece is sleeved with the other end of the lead, and two sides of the steel pipe connecting piece are connected with the shock absorber through the connecting piece; the first hanging plate is connected with the strain clamp and the shock absorber through the connecting piece.
2. The strain relief backup clip as claimed in claim 1, wherein said damper comprises: cylinder, piston rod and buffer spring, wherein:
the piston rod is connected with the cylinder barrel through the buffer spring, the cylinder barrel is of an inner hollow structure, and the piston rod and the cylinder barrel form a pneumatic cylinder.
3. The strain safety backup clip according to claim 1, wherein the wire comprises an outer wire layer and an inner wire layer, and the inner wire layer is a steel core.
4. The strain-resistant safety backup cable clamp according to claim 1, wherein the steel tube connector is sleeved on the inner layer of the wire.
5. The strain-resistant safety backup cable clamp of claim 1, wherein the connecting member is a buckle.
6. The strain safety backup clamp according to claim 5, wherein the steel tube connecting piece is provided with a ring buckle mounting hole, and the ring buckle is provided with a connecting hole matched with the ring buckle mounting hole; and connecting the steel pipe connecting piece with the ring buckle based on the matching of the fastening piece with the ring buckle mounting hole and the connecting hole.
7. The strain-resistant safety backup clip according to claim 4, wherein the steel tube connector is hydraulically connected to the inner layer of the wire.
8. The strain safety backup cable clamp according to claim 1, wherein the first hanging plate is provided with a ring buckle mounting hole, and the ring buckle is provided with a connecting hole matched with the ring buckle mounting hole of the first hanging plate; based on the matching of the fastener and the buckle mounting hole of the first hanging plate and the connecting hole, the first hanging plate is connected with the buckle.
9. The strain safety backup clamp according to claim 1 or claim 8, wherein the first hanging plate is connected to the second hanging plate through the buckle.
10. The strain safety backup clamp according to claim 9, wherein the second hanging plate is provided with a ring buckle mounting hole, and the first hanging plate is connected with the second hanging plate through the ring buckle mounting hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110517365.1A CN113363915A (en) | 2021-05-12 | 2021-05-12 | Strain safety backup wire clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110517365.1A CN113363915A (en) | 2021-05-12 | 2021-05-12 | Strain safety backup wire clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113363915A true CN113363915A (en) | 2021-09-07 |
Family
ID=77526348
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110517365.1A Pending CN113363915A (en) | 2021-05-12 | 2021-05-12 | Strain safety backup wire clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113363915A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109066553A (en) * | 2018-09-16 | 2018-12-21 | 安徽华希电力科技有限公司 | A kind of double protection attachment devices of band buffering aerial earth wire |
| CN208939526U (en) * | 2018-10-17 | 2019-06-04 | 国网江西省电力有限公司经济技术研究院 | It is a kind of based on three across carbon fiber composite core wire backup wire clamp |
| CN110571738A (en) * | 2019-08-20 | 2019-12-13 | 中国能源建设集团江苏省电力设计院有限公司 | device and method for leading and connecting multiple split conductors in transmission line gear |
| CN110611281A (en) * | 2018-06-17 | 2019-12-24 | 江苏天南电力器材有限公司 | Carbon fiber wire strain backup complete device |
| CN212323667U (en) * | 2020-06-24 | 2021-01-08 | 国网湖北省电力有限公司电力科学研究院 | Power transmission line strain clamp reinforcing hardware fitting |
-
2021
- 2021-05-12 CN CN202110517365.1A patent/CN113363915A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110611281A (en) * | 2018-06-17 | 2019-12-24 | 江苏天南电力器材有限公司 | Carbon fiber wire strain backup complete device |
| CN109066553A (en) * | 2018-09-16 | 2018-12-21 | 安徽华希电力科技有限公司 | A kind of double protection attachment devices of band buffering aerial earth wire |
| CN208939526U (en) * | 2018-10-17 | 2019-06-04 | 国网江西省电力有限公司经济技术研究院 | It is a kind of based on three across carbon fiber composite core wire backup wire clamp |
| CN110571738A (en) * | 2019-08-20 | 2019-12-13 | 中国能源建设集团江苏省电力设计院有限公司 | device and method for leading and connecting multiple split conductors in transmission line gear |
| CN212323667U (en) * | 2020-06-24 | 2021-01-08 | 国网湖北省电力有限公司电力科学研究院 | Power transmission line strain clamp reinforcing hardware fitting |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20210907 |