CN213340763U

CN213340763U - Corrosion-resistant electric power fitting

Info

Publication number: CN213340763U
Application number: CN202022470906.3U
Authority: CN
Inventors: 张栋翔; 刘晓明; 陈鹏; 李岩玮; 李振荣; 高会芳
Original assignee: Inner Mongolia Electric Power Research Institute of Inner Mongolia Power Group Co Ltd
Current assignee: Inner Mongolia Electric Power Research Institute of Inner Mongolia Power Group Co Ltd
Priority date: 2020-10-30
Filing date: 2020-10-30
Publication date: 2021-06-01
Anticipated expiration: 2030-10-30

Abstract

The utility model discloses a corrosion-resistant electric power fitting belongs to the anticorrosive technical field of electric power fitting. The clamp comprises a wire clamp, two clamping blocks, a pressing block and a fastening nut; the wire clamp is of a C-shaped opening structure, two ends of the inner wall of the wire clamp are provided with placing parts for placing the wire cores, and the wire clamp is internally provided with a stud; the two clamping blocks are arranged in the wire clamp, clamping parts facing the placing parts are arranged on the clamping blocks, and first inclined planes are arranged on the surfaces, opposite to the clamping parts, of the clamping blocks; two opposite sides of the pressing block are provided with second inclined planes, and the pressing block is sleeved on the stud; the fastening nut is screwed on the stud; the placing part of the wire clamp is coated with a conductive first anticorrosive layer, and the other surfaces of the wire clamp are coated with a second anticorrosive layer; and the outer surface of the clamping block, the outer surface of the pressing block and the outer surface of the fastening nut are coated with second anticorrosive layers. The technical problem that the C-shaped wire clamp in the electric power fitting is prone to corrosion so as to influence the reliability of cable connection and have great potential safety hazards is solved.

Description

Corrosion-resistant electric power fitting

Technical Field

The utility model relates to an anticorrosive technical field of electric power fitting especially relates to a corrosion-resistant electric power fitting.

Background

An electric power fitting is a metal accessory which is used for connecting and combining various devices in an electric power system and plays a role in transmitting mechanical load, electrical load and certain protection. The wire connecting hardware on the power transmission and transformation line is a key connecting hardware in the power technology, and comprises the connection of a high-voltage wire, a low-voltage wire, a branch wire, a service wire, an entrance wire, a bow-shaped wire, a jumper wire, various power equipment leads, a grounding wire and the like, and a wire clamp is needed. The C-type wire clamp is a common power connection fitting, and the C-type wire clamp is one of conductor connection terminals for connecting current, and requires a large through-current capacity.

The C-shaped cable clamp is commonly used for high-altitude power cables, and is directly exposed in the air and easily corroded by rainwater and sun exposure. The corroded C-shaped wire clamp can affect the reliability of cable connection, has great potential safety hazard and can affect the safe, stable and continuous operation of a line, particularly in industrially developed areas with high acid content in air due to acid corrosion, high load and the like. A corrosion-resistant power connection fitting is urgently needed.

Disclosure of Invention

The utility model aims at providing a to the above-mentioned problem, provide a corrosion-resistant electric power fitting, solve C type wire clamp among the electric power fitting and be perishable and influence cable connection's reliability, have the technical problem of very big potential safety hazard.

In order to achieve the above purpose, the utility model adopts the technical proposal that:

a corrosion-resistant electric power fitting comprises a wire clamp, two clamping blocks, a pressing block and a fastening nut; the wire clamp is of a C-shaped opening structure, two ends of the inner wall of the wire clamp are provided with placing parts capable of placing the wire core, a stud is arranged in the wire clamp, and one end of the stud extends out of the opening of the wire clamp; the two clamping blocks are arranged in the wire clamp, clamping parts facing the placing parts are arranged on the clamping blocks, and first inclined planes are arranged on the surfaces, opposite to the clamping parts, of the clamping blocks; second inclined planes are arranged on two opposite sides of the pressing block, a through hole is formed in the middle of the pressing block, and the pressing block is sleeved on the stud through the through hole; the first inclined plane is attached to the second inclined plane; the fastening nut is screwed on the stud, and presses the pressing block on the two clamping blocks; the placing part of the wire clamp is coated with a conductive first anticorrosive layer, and the other surfaces of the wire clamp are coated with a second anticorrosive layer; and the outer surface of the clamping block, the outer surface of the pressing block and the outer surface of the fastening nut are coated with second anticorrosive layers.

Further, the conductive first anticorrosive layer is made of an electrical contact protective grease.

Further, the second anticorrosive layer is an epoxy resin layer.

Furthermore, glass fiber is distributed in the epoxy resin layer.

Further, a guide strip is arranged in the wire clamp, and the guide strip is arranged along the direction from one placing part to the other placing part; the lower end face of the clamping block is provided with a first groove matched with the guide strip, and the lower end face of the pressing block is provided with a second groove matched with the guide strip.

Further, the through hole is an oblong hole arranged along the direction from one placing part to the other placing part.

Due to the adoption of the technical scheme, the beneficial effects of the utility model are that:

1. when the utility model is used, two wires to be connected are respectively placed in the placing part, the pressing block is pressed downwards by screwing the fastening nut, the clamping block connected with the inclined plane of the pressing block moves towards the placing part, and the clamping part on the clamping block presses and fixes the wires on the placing part, so that the two wires are connected and fixed; the conductive first anticorrosive layer is arranged, so that the placing part can be prevented from being corroded under the condition of electrifying; by providing the second anticorrosive layer, each coated surface is prevented from being corroded; based on the above, the utility model can be used for the connection of electric wires and has good anti-corrosion effect; the C-shaped wire clamp in the electric power fitting is easy to corrode, so that the reliability of cable connection is influenced, and the technical problem of great potential safety hazard exists.

2. The first anticorrosive layer of the utility model adopts the electric contact protective grease which is prepared by thickening the fully synthesized special monomolecular base oil by adopting the composite soap and adding various high-performance additives, has good electric conductivity and anticorrosive effect and realizes the functions of electric conductivity and anticorrosion; the utility model discloses a second anticorrosive coating is the epoxy layer, and is provided with glass fiber in the epoxy layer, enables the surface that respectively is coated and air isolated, and glass fiber can increase the structural strength on epoxy layer, and the wholeness on reinforcing epoxy layer prevents droing on epoxy layer, reaches the protection effect of taking well.

3. The utility model is provided with the guide strip, the first groove and the second groove, thereby facilitating the positioning of each part and improving the convenience of assembly; through being provided with the slotted hole, the position of briquetting can finely tune, makes the briquetting the same to the pressure of two clamp splices, makes the clamp splice can better clamp the electric wire.

Drawings

FIG. 1 is a three-dimensional structure diagram of the present invention;

FIG. 2 is a partially cut-away three-dimensional view of the wire clamp of the present invention;

FIG. 3 is a partially cut-away three-dimensional view of the clamping block of the present invention;

fig. 4 is a three-dimensional view of the press block of the utility model partially cut.

In the attached drawing, 1-wire clamp, 2-clamp block, 3-press block, 4-fastening nut, 5-first anticorrosive layer, 6-second anticorrosive layer, 11-placing part, 12-stud, 13-guide strip, 21-clamping part, 22-first inclined plane, 23-first groove, 31-second inclined plane, 32-through hole and 33-second groove.

Detailed Description

The following describes the embodiments of the present invention with reference to the accompanying drawings.

In the description of the present invention, it is to be understood that the terms "center", "length", "width", "up", "down", "vertical", "horizontal", "top", "bottom", "inner", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Referring to fig. 1 to 4, the corrosion-resistant electric power fitting comprises a wire clamp 1, two clamping blocks 2, a pressing block 3 and a fastening nut 4; the wire clamp 1 is of a C-shaped opening structure, two ends of the inner wall of the wire clamp 1 are provided with placing parts 11 capable of placing wire cores, a stud 12 is arranged in the wire clamp 1, and one end of the stud 12 extends out of an opening of the wire clamp 1; the two clamping blocks 2 are arranged in the wire clamp 1, a clamping part 21 facing the placing part 11 is arranged on each clamping block 2, and a first inclined surface 22 is arranged on one surface, opposite to the clamping part 21, of each clamping block 2; two opposite sides of the pressing block 3 are provided with second inclined planes 31, the middle part of the pressing block 3 is provided with a through hole 32, and the pressing block 3 is sleeved on the stud 12 through the through hole 32; a first inclined plane 22 is jointed with a second inclined plane 31; the fastening nut 4 is screwed on the stud 12, and the pressing block 3 is pressed on the two clamping blocks 2 by the fastening nut 4; the placing part 11 of the wire clamp 1 is coated with a conductive first anticorrosive layer 5, and the rest surfaces are coated with a second anticorrosive layer 6; and the outer surfaces of the clamping blocks 2, the pressing blocks 3 and the fastening nuts 4 are coated with second anticorrosive layers 6.

In this embodiment, the conductive first anticorrosive layer 5 is made of an electrical contact protective grease. The second anticorrosive layer 6 is an epoxy resin layer, and glass fibers are distributed in the epoxy resin layer. A guide strip 13 is arranged in the wire clamp 1, and the guide strip 13 is arranged along the direction from one placing part 11 to the other placing part 11; the lower end face of the clamping block 2 is provided with a first groove 23 matched with the guide strip 13, and the lower end face of the pressing block 3 is provided with a second groove 33 matched with the guide strip 13. The through-hole 32 is an oblong hole provided in a direction from one placing section 11 to the other placing section 11.

When the connecting device is used, two electric wires to be connected are respectively placed in the placing part 11, the pressing block 3 is pressed downwards by screwing the fastening nut 4, the clamping block 2 connected with the inclined surface of the pressing block 3 moves towards the placing part 11, and the clamping part 21 on the clamping block 2 presses and fixes the electric wires on the placing part 11, so that the two electric wires are connected and fixed; the conductive first anticorrosive layer 5 is arranged, so that the placing part 11 can be prevented from being corroded under the condition of electrifying; by providing the second anticorrosive layer 6, each coated surface is prevented from being corroded; based on the above, the utility model can be used for the connection of electric wires and has good anti-corrosion effect; the C-shaped wire clamp 1 in the electric power fitting is easy to corrode, so that the reliability of cable connection is influenced, and the technical problem of great potential safety hazard exists. The first anticorrosive layer 5 is prepared by adopting electric contact protective grease, the electric contact protective grease is prepared by thickening and fully synthesizing special monomolecular base oil by adopting composite soap and adding various high-performance additives, has good electric conductivity and anticorrosive effect and realizes the functions of electric conductivity and anticorrosion; the utility model discloses a second anticorrosive coating 6 is the epoxy layer, and is provided with glass fiber in the epoxy layer, enables the surface that respectively is scribbled and air isolated, and glass fiber can increase the structural strength on epoxy layer, and the wholeness on reinforcing epoxy layer prevents droing on epoxy layer, reaches the protection effect of taking well. By arranging the guide strip 13, the first groove 23 and the second groove 33, positioning of each part is facilitated, and convenience in assembly is improved; through being provided with the slotted hole, the position of briquetting 3 can finely tune, makes briquetting 3 the same to the pressure of two clamp splice 2, makes clamp splice 2 can be better the clamp wire.

The above description is for the detailed description of the preferred possible embodiments of the present invention, but the embodiments are not intended to limit the scope of the present invention, and all equivalent changes or modifications accomplished under the technical spirit suggested by the present invention should fall within the scope of the present invention.

Claims

1. A corrosion-resistant electric power fitting is characterized in that: comprises a wire clamp, two clamping blocks, a pressing block and a fastening nut; the wire clamp is of a C-shaped opening structure, two ends of the inner wall of the wire clamp are provided with placing parts capable of placing the wire core, a stud is arranged in the wire clamp, and one end of the stud extends out of the opening of the wire clamp; the two clamping blocks are arranged in the wire clamp, clamping parts facing the placing parts are arranged on the clamping blocks, and first inclined planes are arranged on the surfaces, opposite to the clamping parts, of the clamping blocks; second inclined planes are arranged on two opposite sides of the pressing block, a through hole is formed in the middle of the pressing block, and the pressing block is sleeved on the stud through the through hole; the first inclined plane is attached to the second inclined plane; the fastening nut is screwed on the stud, and presses the pressing block on the two clamping blocks; the placing part of the wire clamp is coated with a conductive first anticorrosive layer, and the other surfaces of the wire clamp are coated with a second anticorrosive layer; and the outer surface of the clamping block, the outer surface of the pressing block and the outer surface of the fastening nut are coated with second anticorrosive layers.

2. The corrosion-resistant electric power fitting of claim 1, wherein: the conductive first anticorrosive layer is made of electric contact protective grease.

3. The corrosion-resistant electric power fitting of claim 1, wherein: the second anticorrosive layer is an epoxy resin layer.

4. A corrosion resistant electrical power fitting according to claim 3, wherein: and glass fibers are distributed in the epoxy resin layer.

5. The corrosion-resistant electric power fitting of claim 1, wherein: a guide strip is arranged in the wire clamp and arranged along the direction from one placing part to the other placing part; the lower end face of the clamping block is provided with a first groove matched with the guide strip, and the lower end face of the pressing block is provided with a second groove matched with the guide strip.

6. The corrosion-resistant electric power fitting of claim 1, wherein: the through hole is a long round hole arranged along the direction from one placing part to the other placing part.