CN114566930A - Suspension clamp for insulated drainage wire and use method - Google Patents

Suspension clamp for insulated drainage wire and use method Download PDF

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Publication number
CN114566930A
CN114566930A CN202210245995.2A CN202210245995A CN114566930A CN 114566930 A CN114566930 A CN 114566930A CN 202210245995 A CN202210245995 A CN 202210245995A CN 114566930 A CN114566930 A CN 114566930A
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CN
China
Prior art keywords
clamp
wire
elastic
insulating
suspension
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
Application number
CN202210245995.2A
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Chinese (zh)
Inventor
郭文东
杜迎春
郝金鹏
金海川
侯婷婷
张永鑫
王晓康
杨忠平
贺岩
赵海龙
王远兴
秦丹
毕茂强
邓润坤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
State Grid Ningxia Electric Power Co Wuzhong Power Supply Co
Original Assignee
State Grid Ningxia Electric Power Co Wuzhong Power Supply Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by State Grid Ningxia Electric Power Co Wuzhong Power Supply Co filed Critical State Grid Ningxia Electric Power Co Wuzhong Power Supply Co
Priority to CN202210245995.2A priority Critical patent/CN114566930A/en
Publication of CN114566930A publication Critical patent/CN114566930A/en
Pending legal-status Critical Current

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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02GINSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G7/00Overhead installations of electric lines or cables
    • H02G7/05Suspension arrangements or devices for electric cables or lines
    • H02G7/053Suspension clamps and clips for electric overhead lines not suspended to a supporting wire
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02GINSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G1/00Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
    • H02G1/02Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for overhead lines or cables

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  • Suspension Of Electric Lines Or Cables (AREA)

Abstract

The invention discloses a suspension clamp for an insulated drainage wire and a using method thereof, wherein the suspension clamp comprises an elastic clamp, a clamp main body, a U-shaped clamping plate, a bolt and a nut; the elastic clamp consists of two elastic clamping pieces, and the inner sides of the elastic clamping pieces are provided with axial grooves; the wire clamp main body consists of two wire clamps, and connecting columns are arranged above the two wire clamps of the wire clamp main body respectively; the elastic clamp wraps and clamps the hanging point on the insulating drainage wire, then wraps and clamps the wire clamp main body outside the elastic clamp, then wraps and clamps the positioning notch of the wire clamp main body by using the U-shaped clamping plate, and finally, the bolt penetrates through the U-shaped clamping plate and the circular through hole in the connecting plate and is fixed by the nut. The elastic clamp for the insulating material can completely coat the insulating drainage wire, avoids the contact between the insulating drainage wire and the wire clamp, has light weight and high strength, and reduces the abrasion between the insulating drainage wire and the wire clamp. The suspension clamp has simple structure, is convenient to install and disassemble, and can not damage the insulated drainage wire in the process of installation and disassembly.

Description

Suspension clamp for insulated drainage wire and use method
Technical Field
The invention relates to the technical field of electric power fittings, in particular to a suspension clamp for an insulated drainage wire and a using method thereof.
Background
Along with the change of ecological environment, the number of birds is increased, the activity area of the birds is enlarged, the activity frequency of the birds is increased, and bird accidents happen occasionally. In order to reduce bird damage tripping, the original drainage wire is subjected to insulation transformation so as to improve the insulation level between the drainage wire and a ground wire or an iron tower and reduce the probability of bird droppings flashover. The surface of the original drainage wire is coated with an insulating layer after insulation transformation, and the insulating layer is ensured to operate under stable and safe conditions in the operation process. It is desirable to avoid wear between the suspension clamp and the wire insulation.
At present overhead transmission line adopts steel-cored aluminum strand wires more, and the suspension clamp is mostly the ship type fastener, if adopt the insulating drainage wire after the fixed insulation of original ship type fastener is reformed transform, will lead to insulating drainage wire and ship type fastener direct contact in actual operation, does not have any protection between, causes the damage to insulating drainage wire surface easily in the installation. And this suspension clamp can be relatively poor to insulating drainage wire location effect, and the drainage wire takes place to rock under the effect of wind power in the strong wind weather for take place relative slip between suspension clamp and the insulating drainage wire, make insulating drainage wire insulating layer and fastener take place the friction, cause insulating drainage wire insulating layer wearing and tearing easily, reduce its insulating properties. The preformed plumb line presss from both sides has the insulating pad of one deck between fastener main part and wire, but this insulating pad material is harder, and the tip radian is less, and it is less to be suitable for the wire bending degree, and insulating pad length is longer, because the great radian of insulating drainage wire, can make insulating pad and fastener tip take place to extrude, long-term work under this condition, insulating pad can cause great destruction. The wire clamp main body is made of cast iron materials, and due to the fact that an eddy current effect exists between the wire clamp and a wire, the wire in the wire clamp can generate the eddy current effect, and the temperature rise of the wire is high.
The present invention thus provides a novel suspension clamp for insulating a drainage wire.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention aims to provide a suspension clamp for an insulated drainage wire and a using method thereof.
The invention adopts the following technical scheme.
A suspension clamp for an insulated drainage wire comprises an elastic clamp, a clamp main body, a U-shaped clamping plate, a bolt and a nut; the elastic clamp consists of two elastic clamping pieces, an axial groove is formed in the inner side of each elastic clamping piece, the wire clamp main body consists of two wire clamps, and the wire clamp main body is sleeved on the outer side of the elastic clamp;
connecting columns are respectively arranged above the two wire clamps of the wire clamp main body, and circular through holes are arranged above the connecting columns;
the U-shaped clamping plate is clamped outside the wire clamp main body and is positioned in a positioning notch on the outer surface of the wire clamp main body, the two sides of the U-shaped clamping plate are also provided with circular through holes, bolts penetrate through the circular through holes above the U-shaped clamping plate and the connecting column, and the outer sides of the end parts of the two sides of the U-shaped clamping plate are fastened through nuts.
Furthermore, the axial grooves on the inner side of the elastic clamping pieces are symmetrically trumpet-shaped and are matched with the size of the insulated drainage wire.
Furthermore, the outer surface of the elastic clamping piece is hyperbolic, and the wire clamp main body is hyperbolic and completely attached to the outer surface of the elastic clamping piece.
Further, the elastic clamp is longer than the clamp body.
Furthermore, the inner layer of the elastic clamping piece is made of elastic insulating materials, the outer layer of the elastic clamping piece is made of a semiconductor layer, and the end of the elastic clamping piece is in an arc shape.
Further, the end part of the wire clamp main body is subjected to fillet treatment.
Furthermore, the height diameter of the circular through holes on the two sides of the U-shaped clamping plate is the same as that of the circular through holes above the connecting columns.
Further, the wire clamp main body is made of aluminum alloy, and the U-shaped clamping plate is made of aluminum alloy.
A use method of a suspension clamp for an insulated drainage wire comprises the following steps:
the elastic clamp wraps and clamps the hanging point on the insulating drainage wire, then wraps and clamps the wire clamp main body outside the elastic clamp, then wraps and clamps the positioning notch of the wire clamp main body by using the U-shaped clamping plate, and finally, the bolt penetrates through the U-shaped clamping plate and the circular through hole in the connecting plate and is fixed by the nut.
Furthermore, the suspension clamp is connected with the composite insulator at the suspension point through a socket hanging plate, and the socket hanging plate is placed in the middle of the connecting plate in advance and is connected to the bolt in a penetrating mode.
The invention has the advantages that compared with the prior art,
the insulating material elastic clamp of the suspension clamp for the insulating drainage wire can completely coat the insulating drainage wire, avoids the contact between the insulating drainage wire and the wire clamp, avoids the sliding and friction of the insulating drainage in the wire clamp, has light weight and high strength, reduces the abrasion of the insulating drainage wire and the wire clamp, has a length slightly longer than that of the wire clamp main body, and can ensure that the insulating drainage wire and the wire clamp main body do not discharge due to the arc-shaped design of the end of the elastic clamp. The insulating elastic material has good elasticity, excellent insulating property and flexibility and long service life, and can improve the stability and the service life of operation.
Due to good elasticity of the elastic clamp of the insulating material, a sufficient contact surface is formed between the wire clamp and the insulating drainage wire when the drainage wire is bent, and stress borne by the insulating drainage wire is distributed in a larger area, so that the influence of static stress such as bending and stretching of the insulating drainage wire is greatly reduced, stress concentration of the wire clamp which cannot damage the insulating drainage wire is ensured, the tolerance capability of the insulating drainage wire is greatly improved, meanwhile, windage galloping of the insulating drainage wire is reduced, repeated friction of the insulating drainage wire is prevented, and wire breakage accidents are reduced, so that normal operation and service life of a system are ensured.
The wire clamp main body is designed in a hyperbolic curve mode, and is made of an aluminum alloy material, so that the wire clamp is large in stress area, light in weight and capable of reducing electromagnetic loss and corona discharge.
The suspension clamp for the insulated drainage has a simple structure, is convenient to install and disassemble, is convenient to transport, and does not damage the insulated drainage wire in the process of installation and disassembly. The suspension clamp has high reliability in operation and good protection on a power transmission line, so that the stable operation of a power system is ensured. The invention can replace various suspension clamps used for insulated wires in the past.
Drawings
FIG. 1 is a schematic view of a suspension clamp for insulated drainage wires according to the present invention;
FIG. 2 is a schematic view of an elastic clamp;
FIG. 3 is a schematic cross-sectional view of the elastic clamp;
FIG. 4 is a schematic structural view of a main body of the cable clamp;
FIG. 5 is a schematic view of a U-shaped clamp plate;
fig. 6 is a schematic view showing a use state of the suspension clamp for an insulated drainage wire according to the present invention.
Detailed Description
The present application is further described below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present application is not limited thereby.
As shown in figure 1, the suspension clamp for the insulated drainage wire comprises an elastic clamp 1, a clamp body 2, a U-shaped clamping plate 3, a bolt 5 and a nut 6. As shown in fig. 2 and 3, the elastic clamp 1 is composed of two elastic clamping pieces, the inner sides of the elastic clamping pieces are provided with axial grooves, the shapes of the axial grooves are symmetrical trumpet shapes and are completely matched with the size of an insulated drainage wire, the outer surfaces of the elastic clamping pieces are hyperbolic curves, and the outer surfaces of the elastic clamping pieces are completely attached to the wire clamp main body 2. The elastic clamping piece is made of elastic insulating materials and flexible semiconductor materials, the innermost layer is made of elastic insulating materials, the semiconductor layer is the outermost layer, and the end of the elastic clamping piece is in an arc shape. The elastic clamp has good elasticity.
As shown in fig. 4, the wire clamp main body 2 is made of aluminum alloy and is composed of two wire clamps, the wire clamp main body 2 is sleeved outside the elastic clamp 1, the elastic clamp 1 is located in the middle of the wire clamp main body 2, the end portion of the wire clamp main body 2 is processed in a fillet mode, and the wire clamp main body is in a hyperbolic curve. The elastic clamp 1 is slightly longer than the wire clamp body 2. Connecting columns 4 are respectively arranged above the two wire clamps of the wire clamp main body 2, and circular through holes are formed above the connecting columns 4. 2 both sides of fastener body respectively are equipped with the location notch for fixed U type splint 3 prevents that U type splint 3 from not hard up.
As shown in fig. 5, the U-shaped clamp plate 3 is made of aluminum alloy, is clamped outside the wire clamp body 2 and is positioned in the positioning notch on the outer surface of the wire clamp body 2, and can firmly press and connect the two wire clamp bodies; circular through holes are also formed in the two sides of the U-shaped clamping plate 3, and the height diameter of each through hole is the same as that of the circular through hole above the connecting column 4. And a bolt 5 penetrates through the circular through holes above the U-shaped clamping plate 3 and the connecting column 4, and the outer sides of the end parts at two sides of the U-shaped clamping plate 3 are fastened through nuts 6.
The suspension clamp has the advantages that the stress area is large, the suspension clamp is made of aluminum alloy materials, the material quality is light, the gravity is reduced while the better bearing capacity is guaranteed, the aluminum-made clamp body can reduce eddy current loss, the elastic clamp and the clamp body can be completely attached to the surface of the insulating layer of the insulating drainage wire, and the horn-shaped structure on the inner side of the elastic clamp can reduce the damage of the insulating layer of the insulating drainage wire and the elastic clamp, so that the insulating drainage wire is protected, and the normal operation and the service life of a power transmission system are guaranteed.
As shown in fig. 6, when the clamp is installed and used, the elastic clamp 1 is firstly clamped at the hanging point on the insulated drainage wire 7, the wire clamp body 2 is then clamped outside the elastic clamp 1, the U-shaped clamp plate 3 is finally clamped at the positioning notch of the wire clamp body 2, and finally the bolt 5 penetrates through the U-shaped clamp plate 3 and the circular through hole on the connecting plate 4 and is finally fixed by the nut 6. The suspension clamp is connected with the composite insulator 10 at the suspension point through the socket hanging plate 9, and the socket hanging plate 9 is placed in the middle of the connecting plate 4 in advance and is connected on the bolt 5 in a penetrating mode.
The invention has the advantages that compared with the prior art,
the insulating material elastic clamp of the suspension clamp for the insulating drainage wire can completely coat the insulating drainage wire, avoids the contact between the insulating drainage wire and the wire clamp, avoids the sliding and friction of the insulating drainage in the wire clamp, has light weight and high strength, reduces the abrasion of the insulating drainage wire and the wire clamp, has the length slightly longer than that of the wire clamp main body, and can ensure that the insulating drainage wire and the wire clamp main body do not discharge due to the arc-shaped design of the end of the elastic clamp. The insulating elastic material has good elasticity, excellent insulating property and flexibility and long service life, and can improve the stability and the service life of operation.
Due to good elasticity of the elastic clamp of the insulating material, a sufficient contact surface is formed between the wire clamp and the insulating drainage wire when the drainage wire is bent, and stress borne by the insulating drainage wire is distributed in a larger area, so that the influence of static stress such as bending and stretching of the insulating drainage wire is greatly reduced, stress concentration of the wire clamp which cannot damage the insulating drainage wire is ensured, the tolerance capability of the insulating drainage wire is greatly improved, meanwhile, windage galloping of the insulating drainage wire is reduced, repeated friction of the insulating drainage wire is prevented, and wire breakage accidents are reduced, so that normal operation and service life of a system are ensured.
The wire clamp main body is designed in a hyperbolic curve mode, and is made of an aluminum alloy material, so that the wire clamp is large in stress area, light in weight and capable of reducing electromagnetic loss and corona discharge.
The suspension clamp for the insulated drainage has a simple structure, is convenient to install and disassemble, is convenient to transport, and does not damage the insulated drainage wire in the process of installation and disassembly. The suspension clamp has high reliability in operation and good protection on a power transmission line, so that the stable operation of a power system is ensured. The invention can replace various suspension clamps used for insulated wires in the past.
The present applicant has described and illustrated embodiments of the present invention in detail with reference to the accompanying drawings, but it should be understood by those skilled in the art that the above embodiments are merely preferred embodiments of the present invention, and the detailed description is only for the purpose of helping the reader to better understand the spirit of the present invention, and not for limiting the scope of the present invention, and on the contrary, any improvement or modification made based on the spirit of the present invention should fall within the scope of the present invention.

Claims (10)

1. A suspension clamp for an insulated drainage wire is characterized by comprising an elastic clamp (1), a clamp body (2), a U-shaped clamping plate (3), a bolt (5) and a nut (6); the elastic clamp (1) consists of two elastic clamping pieces, an axial groove is formed in the inner side of each elastic clamping piece, the wire clamp main body (2) consists of two wire clamps, and the wire clamp main body (2) is sleeved on the outer side of the elastic clamp (1);
connecting columns (4) are respectively arranged above the two wire clamps of the wire clamp main body (2), and circular through holes are formed above the connecting columns (4);
u type splint (3) press from both sides outside fastener main part (2), and are located the location notch of fastener main part (2) surface, and U type splint (3) both sides also set up circular through-hole, pass the circular through-hole of U type splint (3) and spliced pole (4) top with bolt (5), pass through nut (6) fastening in U type splint (3) both sides tip outside.
2. The suspension clamp for insulated drainage wires of claim 1, wherein the axial grooves inside the resilient clip are symmetrically flared to match the size of the insulated drainage wire.
3. The suspension clamp for insulating drainage wires according to claim 1, wherein the outer surface of the elastic clamping piece is hyperbolic, and the clamp body (2) is hyperbolic and completely attached to the outer surface of the elastic clamping piece.
4. The suspension clamp for insulated drainage wires according to claim 1, wherein the elastic clamp (1) is longer than the clamp body (2).
5. The suspension clamp for insulating drainage wires according to claim 1, wherein the inner layer of the elastic clamping piece is made of elastic insulating material, the outer layer of the elastic clamping piece is made of a semiconductor layer, and the end of the elastic clamping piece is in a circular arc shape.
6. The suspension clamp for insulated drainage wires according to claim 1, wherein the ends of the clamp body (2) are rounded.
7. The suspension clamp for insulating drainage wires according to claim 1, wherein the circular through holes at both sides of the U-shaped clamping plate (3) have the same height diameter as the circular through holes above the connecting posts (4).
8. The suspension clamp for insulating drainage wires according to claim 1, wherein the clamp body (2) is made of aluminum alloy, and the U-shaped clamping plate (3) is made of aluminum alloy.
9. A method of using the suspension clamp for an insulated drainage wire according to claims 1 to 8, comprising the steps of:
firstly, the elastic clamp (1) is clamped at the hanging point on the insulating drainage wire (7), then the wire clamp body (2) is clamped at the outer side of the elastic clamp (1), then the U-shaped clamp plate (3) is used for clamping the positioning notch of the wire clamp body (2), and finally the bolt (5) penetrates through the circular through holes in the U-shaped clamp plate (3) and the connecting plate (4) and is fixed by the nut (6).
10. The use method of the suspension clamp for the insulated drainage wire according to claim 9, wherein the suspension clamp is connected with the composite insulator (10) at the suspension point through a socket hanging plate (9), and the socket hanging plate (9) is placed in the middle of the connecting plate (4) in advance and is connected on the bolt (5) in a penetrating manner.
CN202210245995.2A 2022-03-14 2022-03-14 Suspension clamp for insulated drainage wire and use method Pending CN114566930A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210245995.2A CN114566930A (en) 2022-03-14 2022-03-14 Suspension clamp for insulated drainage wire and use method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210245995.2A CN114566930A (en) 2022-03-14 2022-03-14 Suspension clamp for insulated drainage wire and use method

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Publication Number Publication Date
CN114566930A true CN114566930A (en) 2022-05-31

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Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2679898Y (en) * 2004-01-18 2005-02-16 桂林市天地光纤通信有限公司 Pretwisted suspension wire clip for overhead line
US20080230265A1 (en) * 2007-03-14 2008-09-25 Byung-Jun An Electric power cable fixing apparatus for an insulator
CN201432594Y (en) * 2009-05-07 2010-03-31 北京帕尔普线路器材有限公司 Line clamp used for fixing additional guide line
CN102055157A (en) * 2010-10-31 2011-05-11 江苏华厦电力成套设备有限公司 High-strength anti-corona pre-twisted suspension clamp
CN202068152U (en) * 2011-05-31 2011-12-07 凤凰科技集团有限公司 Pre-twisted suspension clamp
CN202488072U (en) * 2011-12-08 2012-10-10 上海神勇线路器材有限公司 Pre-twisted suspension clamp
CN202513526U (en) * 2012-04-20 2012-10-31 河南科信电缆有限公司 Suspension clamp capable of reducing frictional heating
CN206685853U (en) * 2017-05-22 2017-11-28 固力发电气股份有限公司 One kind punctures suspension clamp
CN206759003U (en) * 2017-05-03 2017-12-15 江苏华钰电力金具制造有限公司 A kind of suspension clamp
CN108701981A (en) * 2015-12-30 2018-10-23 预制管线产品公司 Cable interval clamping limb liner
KR102025259B1 (en) * 2019-02-26 2019-09-26 제룡산업 주식회사 An insert rubber of amour rod grip type suspension clamp
CN212210429U (en) * 2020-05-12 2020-12-22 马鞍山市华能电力线路器材有限责任公司 Suspension clamp for insulator string with rust-proof function
CN113572111A (en) * 2021-08-25 2021-10-29 国网福建省电力有限公司 Light alloy backup wire clamp and ground wire suspension reinforcement method

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2679898Y (en) * 2004-01-18 2005-02-16 桂林市天地光纤通信有限公司 Pretwisted suspension wire clip for overhead line
US20080230265A1 (en) * 2007-03-14 2008-09-25 Byung-Jun An Electric power cable fixing apparatus for an insulator
CN201432594Y (en) * 2009-05-07 2010-03-31 北京帕尔普线路器材有限公司 Line clamp used for fixing additional guide line
CN102055157A (en) * 2010-10-31 2011-05-11 江苏华厦电力成套设备有限公司 High-strength anti-corona pre-twisted suspension clamp
CN202068152U (en) * 2011-05-31 2011-12-07 凤凰科技集团有限公司 Pre-twisted suspension clamp
CN202488072U (en) * 2011-12-08 2012-10-10 上海神勇线路器材有限公司 Pre-twisted suspension clamp
CN202513526U (en) * 2012-04-20 2012-10-31 河南科信电缆有限公司 Suspension clamp capable of reducing frictional heating
CN108701981A (en) * 2015-12-30 2018-10-23 预制管线产品公司 Cable interval clamping limb liner
CN206759003U (en) * 2017-05-03 2017-12-15 江苏华钰电力金具制造有限公司 A kind of suspension clamp
CN206685853U (en) * 2017-05-22 2017-11-28 固力发电气股份有限公司 One kind punctures suspension clamp
KR102025259B1 (en) * 2019-02-26 2019-09-26 제룡산업 주식회사 An insert rubber of amour rod grip type suspension clamp
CN212210429U (en) * 2020-05-12 2020-12-22 马鞍山市华能电力线路器材有限责任公司 Suspension clamp for insulator string with rust-proof function
CN113572111A (en) * 2021-08-25 2021-10-29 国网福建省电力有限公司 Light alloy backup wire clamp and ground wire suspension reinforcement method

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