CN110994508A - Triangular cable clamp - Google Patents
Triangular cable clamp Download PDFInfo
- Publication number
- CN110994508A CN110994508A CN201911159161.4A CN201911159161A CN110994508A CN 110994508 A CN110994508 A CN 110994508A CN 201911159161 A CN201911159161 A CN 201911159161A CN 110994508 A CN110994508 A CN 110994508A
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- CN
- China
- Prior art keywords
- cable clamp
- shaped
- base
- cable
- delta
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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
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/30—Installations of cables or lines on walls, floors or ceilings
- H02G3/32—Installations of cables or lines on walls, floors or ceilings using mounting clamps
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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
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/02—Details
- H02G3/04—Protective tubing or conduits, e.g. cable ladders or cable troughs
- H02G3/0456—Ladders or other supports
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention provides a delta-shaped cable clamp which is fixed on a bracket through a bolt and comprises a cover plate, a base and a Y-shaped isolation component; the base is equipped with the recess of two connections, and two groove connection portion are the boss, and the apron passes through the bolt fastening directly over the base, and both are article style of calligraphy after fixed, and Y type isolation component inserts the boss, has reduced the impact load after the cable takes place short circuit fault, greatly reduced cable clamp's damage probability. The invention can block the violent relative movement between the base and the isolation component, consume the electromagnetic vibration energy of the cable in normal operation, reduce the impact speed, improve the vibration damping effect, the cable clamp is not easy to damage, and the service life of the cable clamp is prolonged; the invention avoids the damage of the wire clamp caused by fixed connection in a flexible connection mode.
Description
Technical Field
The invention relates to the technical field of power transmission networks, in particular to a triangular cable clamp.
Background
With the continuous improvement of urbanization level, the demand of urban construction on power transmission and distribution cable lines will continuously increase, and urban cable line construction and power cable line design technology are continuously developed. The high-voltage power cable line laying mode mainly comprises a cable tunnel, a calandria, a cable trench and the like, and the fixing and supporting of the cable and accessories thereof mainly depend on the installation and the use of a cable hardware fitting.
The cable hardware fitting mainly comprises a wire clamp, a support and an upright post, and is integrally distributed in sections at a certain interval. The cable passes through fastener fixed mounting on the support, when the short circuit trouble takes place for the electric wire netting, can produce very big short-circuit current, forms strong magnetic field, and on the effect current-carrying cable, the cable will bear very huge electric power. The electrodynamic force is transmitted to the fastener of fixed cable through the mode of contact on to can make the gold utensil take place plastic deformation, form the potential safety hazard, direct fracture drops even, influences the safety and stability operation of electric wire netting. When a power grid normally operates, three-phase alternating current flowing through a cable can induce an alternating magnetic field in a surrounding space, the alternating magnetic field acts on the current-carrying cable to generate electrodynamic force, the electrodynamic force is far smaller than that in a short-circuit state, the vibration of the cable and hardware can be caused, the sound is larger when the load is high, and noise pollution is caused. The long-time vibration of the hardware also can cause the damage of the cable insulation layer, so that the angle iron bracket is loosened and the fixing bolt and the hardware are damaged. Therefore, the clamp directly influences the technical requirements of the cable line under normal operation and short-circuit fault conditions. A triangular cable clamp in the prior art belongs to rigid connection, an isolation assembly is only used for isolating a three-phase cable, and after the rigid connection cable has a short-circuit fault, the impact load on the cable is large, so that the cable clamp is easy to damage.
Disclosure of Invention
In order to overcome the defect that a cable clamp in the prior art is easy to damage, the invention provides a delta-shaped cable clamp which is fixed on a bracket (5) through a bolt and comprises a cover plate (1), a base (2) and a Y-shaped isolation component (3); apron (1) is fixed directly over base (2) through the bolt, and both are article style of calligraphy after fixed, and base (2) are equipped with two recesses and are located the boss between two recesses, and Y type isolation component (3) insert the boss, have reduced the impact load after the cable takes place short circuit fault, greatly reduced the damage probability of cable clamp.
In order to achieve the purpose of the invention, the invention adopts the following technical scheme:
the invention provides a delta-shaped cable clamp which comprises a cover plate (1), a base (2) and a Y-shaped isolation component (3);
the base (2) is provided with two connected grooves, the connecting parts of the two grooves are bosses, the cover plate (1) is fixed right above the base (2), and the two fixed grooves are in a triangular shape;
the Y-shaped isolation component (3) is inserted into the boss.
The convex part of boss is hollow structure, during Y type isolation component (3) inserted hollow structure, cable clamp still includes damping layer (4), damping layer (4) are located between hollow structure and isolation component (3).
The damping layer (4) is one or more layers.
When the damping layer (4) is one layer, the damping layer is arranged on the inner wall of the hollow structure or on the surface of the lower part of the Y-shaped isolation component.
When damping layer (4) is the multilayer, the position of damping layer includes:
the multiple damping layers are arranged in a stacked mode and are arranged on the inner wall of the hollow structure, the multiple damping layers are arranged in a stacked mode and are arranged on the lower surface of the Y-shaped isolation assembly, or one part of the damping layers are arranged on the inner wall of the hollow structure and the other part of the damping layers are arranged on the lower surface of the Y-shaped isolation assembly.
The damping layer (4) is made of rubber-based composite materials.
The cover plate (1), the base (2) and the Y-shaped isolation component (3) are made of alloy or high polymer materials.
The alloy is an aluminum alloy.
The high polymer material is glass fiber.
The cable clamp is fixed on the bracket (5) through a bolt.
The damping layer (4) is arranged in a sticking mode.
Compared with the closest prior art, the technical scheme provided by the invention has the following beneficial effects:
the delta-shaped cable clamp provided by the invention is fixed on a bracket (5) through a bolt and comprises a cover plate (1), a base (2) and a Y-shaped isolation component (3); the base (2) is provided with two connected grooves, the connecting parts of the two grooves are bosses, the cover plate (1) is fixed right above the base (2) and is in a triangular shape after being fixed, and the Y-shaped isolation component (3) is inserted into the bosses, so that the impact load of a cable after short circuit fault occurs is reduced, and the damage probability of a cable clamp is greatly reduced;
the triangular cable clamp provided by the invention is provided with the damping layer (4), the damping layer (4) can block the violent relative movement between the base (2) and the isolation assembly (3), the electromagnetic vibration energy of the cable in normal operation is consumed, the damping effect generated by energy dissipation is reacted on the cable, the impact speed is reduced, the vibration reduction effect is improved, the cable clamp is not easy to damage, and the service life of the cable clamp is prolonged;
the delta-shaped cable clamp provided by the invention avoids the damage of the cable clamp due to fixed connection in a flexible connection mode, and is suitable for different voltage grades, cable wire diameters, stand column intervals and tunnel sections.
Drawings
FIG. 1 is a perspective view of a cable clamp shaped like a Chinese character 'pin' in accordance with an embodiment of the present invention;
FIG. 2 is a front view of a cable clamp shaped like a Chinese character 'pin' in accordance with an embodiment of the present invention;
FIG. 3 is a side view of a delta-shaped cable clamp according to an embodiment of the present invention;
FIG. 4 is a top view of a delta-shaped cable clamp according to an embodiment of the present invention;
FIG. 5 is a front view of a cover plate in an embodiment of the present invention;
FIG. 6 is a side view of a cover plate in an embodiment of the present invention;
FIG. 7 is a top view of a cover plate in an embodiment of the present invention;
FIG. 8 is a front view of a base in an embodiment of the present invention;
FIG. 9 is a side view of a base in an embodiment of the invention;
FIG. 10 is a top view of a base in an embodiment of the present invention;
FIG. 11 is a front view of an isolation assembly in an embodiment of the present invention;
FIG. 12 is a side view of an isolation assembly in an embodiment of the present invention;
FIG. 13 is a top view of an isolation assembly in an embodiment of the present invention;
FIG. 14 is a schematic view of the relative displacement between the base and the isolation assembly in an embodiment of the present invention;
in the figure, 1-cover plate, 2-base, 3-Y type isolation component, 4-damping layer and 5-support.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The embodiment of the invention provides a triangular cable clamp which is fixed on a bracket 5 through bolts, and comprises a cover plate 1, a base 2 and a Y-shaped isolation component 3 as shown in figures 1-4;
The specific structure of the cover plate 1 is shown in fig. 5-7, the specific structure of the base plate 2 is shown in fig. 8-10, and the specific structure of the Y-shaped isolation component 3 is shown in fig. 11-13.
The convex part of boss is hollow structure, and Y type isolation component 3 inserts hollow structure, and the cable clamp still includes damping layer 4, and damping layer 4 is located between recess and the isolation component 3, separates through damping layer 4 between base 2 and the isolation component 3 promptly. When relative displacement occurs between the cables, relative displacement occurs between the base 2 and the isolation component 3 (as shown in fig. 14), and the damping layer 4 is uniformly stretched or compressed, so that severe relative movement between the base 2 and the isolation component 3 is prevented.
The damping layer 4 is one or more layers.
When the damping layer 4 is a layer, the damping layer is arranged on the inner wall of the hollow structure or on the lower surface of the Y-shaped isolation component.
When the damping layer 4 is a multilayer, the positions of the damping layer include:
the multiple damping layers are arranged in a stacked mode and are arranged on the inner wall of the hollow structure, the multiple damping layers are arranged in a stacked mode and are arranged on the lower surface of the Y-shaped isolation assembly, or one part of the damping layers are arranged on the inner wall of the hollow structure and the other part of the damping layers are arranged on the lower surface of the Y-shaped isolation assembly. The above arrangement may select the manner of attachment.
The damping layer 4 is made of rubber-based composite material, and the technical parameters of the rubber-based composite material are as shown in table 1:
TABLE 1
The cover plate 1, the base 2 and the Y-shaped isolation component 3 are made of alloy or high polymer materials.
The alloy is aluminum alloy, and the high polymer material is glass fiber.
The cavity between the Y-shaped isolation component 3 and the cover plate 1 and the cavity formed between the two grooves are used for placing cables.
The delta-shaped cable clamp provided by the embodiment of the invention can meet the fixing and mounting requirements of a cable in a tunnel, can compensate the deformation and displacement of the cable clamp caused by the impact load of the cable when a power grid has a short-circuit fault, and improves the vibration protection capability of equipment caused by the alternating electromagnetic action when the cable is in normal operation.
Finally, it should be noted that: the above embodiments are only intended to illustrate the technical solution of the present invention and not to limit the same, and a person of ordinary skill in the art can make modifications or equivalents to the specific embodiments of the present invention with reference to the above embodiments, and such modifications or equivalents without departing from the spirit and scope of the present invention are within the scope of the claims of the present invention as set forth in the claims.
Claims (11)
1. A delta-shaped cable clamp is characterized by comprising a cover plate (1), a base (2) and a Y-shaped isolation component (3);
the base (2) is provided with two connected grooves, the connecting parts of the two grooves are bosses, the cover plate (1) is fixed right above the base (2), and the two fixed grooves are in a triangular shape;
the Y-shaped isolation component (3) is inserted into the boss.
2. A cable clamp as claimed in claim 1, characterized in that the convex part of the boss is a hollow structure, the Y-shaped isolating component (3) is inserted into the hollow structure, the cable clamp further comprises a damping layer (4), the damping layer (4) is located between the hollow structure and the isolating component (3).
3. The delta-shaped cable clamp according to claim 2, wherein the damping layer (4) is one or more layers.
4. The delta-shaped cable clamp according to claim 3, wherein when the damping layer (4) is a layer, the damping layer is arranged on the inner wall of the hollow structure or on the lower surface of the Y-shaped isolation component.
5. The delta-shaped cable clamp according to claim 3, wherein when the damping layer (4) is multi-layered, the positions of the multi-layered damping layer include:
the multiple damping layers are arranged in a stacked mode and are arranged on the inner wall of the hollow structure, the multiple damping layers are arranged in a stacked mode and are arranged on the lower surface of the Y-shaped isolation assembly, or one part of the damping layers are arranged on the inner wall of the hollow structure and the other part of the damping layers are arranged on the lower surface of the Y-shaped isolation assembly.
6. A cable clamp according to any one of claims 2 to 5, wherein the damping layer (4) is made of a rubber-based composite material.
7. The delta-shaped cable clamp according to claim 1, wherein the cover plate (1), the base (2) and the Y-shaped isolation component (3) are made of alloy or high polymer materials.
8. The delta-shaped cable clamp according to claim 7, wherein the alloy is an aluminum alloy.
9. The delta-shaped cable clamp according to claim 7, wherein the polymer material is glass fiber.
10. Delta-shaped cable clamp according to claim 1, characterized in that it is fixed on the support (5) by means of bolts.
11. A cable clamp according to claim 4 or 5, characterized in that the damping layer (4) is provided by means of gluing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911159161.4A CN110994508A (en) | 2019-11-22 | 2019-11-22 | Triangular cable clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911159161.4A CN110994508A (en) | 2019-11-22 | 2019-11-22 | Triangular cable clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110994508A true CN110994508A (en) | 2020-04-10 |
Family
ID=70086090
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911159161.4A Pending CN110994508A (en) | 2019-11-22 | 2019-11-22 | Triangular cable clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110994508A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117254407A (en) * | 2023-11-17 | 2023-12-19 | 浙江泰昌实业有限公司 | Flexible combined self-supporting type delta-shaped cable clamp |
-
2019
- 2019-11-22 CN CN201911159161.4A patent/CN110994508A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117254407A (en) * | 2023-11-17 | 2023-12-19 | 浙江泰昌实业有限公司 | Flexible combined self-supporting type delta-shaped cable clamp |
| CN117254407B (en) * | 2023-11-17 | 2024-02-02 | 浙江泰昌实业有限公司 | Flexible combined self-supporting type delta-shaped cable clamp |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20200819 Address after: 310008 Cheng Cheng mansion, No. 1 South Road, Shangcheng District, Zhejiang, Hangzhou Applicant after: STATE GRID ZHEJIANG ECONOMIC Research Institute Applicant after: CHINA ELECTRIC POWER RESEARCH INSTITUTE Co.,Ltd. Applicant after: STATE GRID CORPORATION OF CHINA Address before: 100192 Beijing city Haidian District Qinghe small Camp Road No. 15 Applicant before: CHINA ELECTRIC POWER RESEARCH INSTITUTE Co.,Ltd. Applicant before: STATE GRID CORPORATION OF CHINA Applicant before: STATE GRID ZHEJIANG ECONOMIC Research Institute |
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| TA01 | Transfer of patent application right | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |