CN119581106B - Wire insulation protection device and wire insulation protection method - Google Patents

Wire insulation protection device and wire insulation protection method

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Publication number
CN119581106B
CN119581106B CN202411736411.7A CN202411736411A CN119581106B CN 119581106 B CN119581106 B CN 119581106B CN 202411736411 A CN202411736411 A CN 202411736411A CN 119581106 B CN119581106 B CN 119581106B
Authority
CN
China
Prior art keywords
pressing
clamping
electric wire
wire
groove
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.)
Active
Application number
CN202411736411.7A
Other languages
Chinese (zh)
Other versions
CN119581106A (en
Inventor
曹庆丰
朱明记
陈永忠
谢建明
张方策
万嘉辉
陈达雄
候金龙
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.)
Guangdong Power Grid Co Ltd
Qingyuan Power Supply Bureau of Guangdong Power Grid Co Ltd
Original Assignee
Guangdong Power Grid Co Ltd
Qingyuan Power Supply Bureau of Guangdong Power Grid Co Ltd
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 Guangdong Power Grid Co Ltd, Qingyuan Power Supply Bureau of Guangdong Power Grid Co Ltd filed Critical Guangdong Power Grid Co Ltd
Priority to CN202411736411.7A priority Critical patent/CN119581106B/en
Publication of CN119581106A publication Critical patent/CN119581106A/en
Application granted granted Critical
Publication of CN119581106B publication Critical patent/CN119581106B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B13/00Apparatus or processes specially adapted for manufacturing conductors or cables
    • H01B13/06Insulating conductors or cables
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00Insulated conductors or cables characterised by their form
    • H01B7/02Disposition of insulation
    • 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
    • H02G1/14Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for joining or terminating cables

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Insulating Bodies (AREA)

Abstract

The invention relates to the technical field of power engineering and discloses an electric wire insulation protection device and an electric wire insulation protection method. The elastic clamping piece is arranged on the mounting base body and is provided with a clamping groove, the clamping groove is used for clamping the electric wire, the pressing structure comprises a first pressing part and a second pressing part, and when the pressing structure moves towards the direction close to the elastic clamping piece, the first pressing part and the second pressing part can squeeze the elastic clamping piece to clamp the electric wire. The insulating cover has first position and second position, and when first position, the insulating cover avoids the conductive connection of electric wire, and when the second position, the insulating cover covers outside the conductive connection of electric wire, can isolate conductive connection with the external world, realizes the insulating protection of electric wire, prevents maintainer electric shock and electric wire short circuit, guarantees operation security and electric power system's steady operation. The wire insulation protection device is simple to operate, can improve the operation efficiency, and reduces the overhaul and maintenance cost.

Description

Wire insulation protection device and wire insulation protection method
Technical Field
The invention relates to the technical field of power engineering, in particular to an electric wire insulation protection device and an electric wire insulation protection method.
Background
In the repair and maintenance operations of a power grid line, a worker is usually required to adjust or remove a circuit wire of a device to be repaired or replaced. For example, when the electric meter is replaced by a fault, the electric meter is usually installed and removed under an electrified environment, and in order to prevent electric shock and occurrence of a wire-to-wire short circuit between wires during the installation and removal process, the wires need to be insulated.
In the prior art, the conductive part of the dismantled wire is wrapped and wound by the adhesive tape, the operation is complex, and in the winding process, the electric shock risk still exists for the maintainer.
Accordingly, there is a need for an apparatus and method for protecting an electric wire to solve the above problems.
Disclosure of Invention
Based on the above problems, the invention aims to provide an electric wire insulation protection device and an electric wire insulation protection method, which can prevent electric shock in the process of overhauling and maintaining, ensure the operation safety, improve the operation efficiency and reduce the overhauling and maintaining cost.
In order to achieve the above purpose, the invention adopts the following technical scheme:
in one aspect, there is provided an electric wire insulation protection device comprising:
A mounting substrate;
The elastic clamping piece is arranged on the mounting base body and is provided with a clamping groove, and the clamping groove is used for clamping an electric wire to be insulated;
the pressing structure is movably arranged on the mounting base body and comprises a first pressing part and a second pressing part which are respectively arranged on two sides of the elastic clamping piece, and when the pressing structure moves towards the direction close to the elastic clamping piece, the first pressing part and the second pressing part can squeeze the elastic clamping piece to clamp the electric wire in the clamping groove;
The insulating cover is movably connected to the mounting base body and is provided with a first position and a second position, when the insulating cover is at the first position, the insulating cover avoids the conductive connector of the electric wire, and when the insulating cover is at the second position, the insulating cover is covered outside the conductive connector of the electric wire.
As an alternative to the wire insulation protection device of the present invention, a side of the first pressing portion facing the second pressing portion has a first pressing surface, a side of the second pressing portion facing the first pressing portion has a second pressing surface, and both the first pressing surface and the second pressing surface are capable of contacting the elastic clamping member;
the first pressing surface and the second pressing surface comprise a first inclined surface, a pressing plane and a second inclined surface which are sequentially connected, the two first inclined surfaces incline towards the direction opposite to each other along the direction away from the pressing plane, the two second inclined surfaces incline towards each other along the direction away from the pressing plane, or the first pressing surface and the second pressing surface incline towards each other along the direction away from the elastic clamping piece.
As an alternative scheme of the wire insulation protection device, the pressing structure further comprises a connecting part, the first pressing part and the second pressing part are arranged at intervals on the connecting part, and the connecting part is in sliding connection with the mounting base body;
The mounting base body is rotationally connected with an adjusting screw, the adjusting screw extends along the sliding direction of the compression structure, the adjusting screw penetrates through the connecting portion and is in threaded fit with the connecting portion, and the compression structure can be driven to slide relative to the mounting base body when the adjusting screw is screwed.
As an alternative scheme of the wire insulation protection device, one end of the insulation cover is provided with a limiting rod, one end of the limiting rod, which is far away from the insulation cover, is rotationally connected with the installation base body, a first limiting groove and a second limiting groove are formed in the installation base body, when the insulation cover is positioned at the first position, the limiting rod is clamped and limited in the first limiting groove, and when the insulation cover is positioned at the second position, the limiting rod is clamped and limited in the second limiting groove.
As an alternative scheme of the wire insulation protection device, one end of the limiting rod, which is far away from the insulation cover, is provided with a switching part, the mounting base body is provided with a rotating groove, and the switching part is rotatably mounted in the rotating groove through a rotating shaft;
and/or the rotation axis of the limiting rod is positioned on the intersection point of the extension line of the first limiting groove and the extension line of the second limiting groove;
And/or, the installation base member is including being first base member and the second base member that the contained angle set up, adjusting screw with first spacing groove divides to locate the relative both sides of first base member, compress tightly structure sliding connection in first base member, elasticity holder with second spacing groove divides to locate the relative both sides of second base member, just the opening in first spacing groove with the opening in second spacing groove is relative.
As an alternative to the wire insulation protection device of the present invention, a sliding space is formed between the first pressing portion and the second pressing portion, and the mounting base is at least partially located in the sliding space;
And/or one of the mounting base body and the pressing structure is provided with a sliding groove, and the other is provided with a sliding block which is in sliding fit with the sliding groove.
As an alternative to the wire insulation protection device of the present invention, the insulation cover has a cover cavity, one end of the cover cavity is closed, the other end is opened to form an end opening, the cover cavity has a side opening communicating with the end opening, and the wire is clamped into the cover cavity through the end opening and the side opening;
and/or the insulating cover is provided with a cover cavity, and the depth dimension of the cover cavity is larger than the wire diameter dimension of the electric wire;
and/or the mounting base, the elastic clamping piece, the pressing structure and the insulating cover are all made of insulating materials.
As an alternative scheme of the wire insulation protection device, the elastic clamping piece comprises a first clamping part and a second clamping part which are arranged at intervals, the clamping groove is formed between the first clamping part and the second clamping part, and when the pressing structure moves relative to the installation base body, the first clamping part and the second clamping part are close to or far away from each other.
As an alternative scheme of the wire insulation protection device, a pushing inclined plane is arranged on one side of the first clamping part and one side of the second clamping part, which are opposite to each other, the pushing inclined plane is inclined towards the direction opposite to the clamping groove, when the pressing structure moves relative to the mounting base body, the first pressing part is in sliding fit with the pushing inclined plane of the first clamping part, and the second pressing part is in sliding fit with the pushing inclined plane of the second clamping part;
and/or the first clamping part and the second clamping part are made of flexible materials and can generate elastic deformation.
In another aspect, there is provided a wire insulation protection method for insulating a wire to be insulated using the wire insulation protection device as described above, comprising the steps of:
adjusting the pressing structure to a state of not pressing the elastic clamping piece, and enabling the insulating cover to be in the first position;
clamping the wire to be insulated into the clamping groove of the elastic clamping piece;
Driving the pressing structure to move towards a direction approaching to the elastic clamping piece so that the first pressing part and the second pressing part press the elastic clamping piece to clamp the electric wire;
Releasing the connection between the electric wire and equipment to be overhauled so as to expose a conductive joint of the electric wire;
and adjusting the insulating cover to the second position so that the insulating cover covers the conductive connector of the electric wire.
The beneficial effects of the invention are as follows:
According to the wire insulation protection device and the wire insulation protection method, when the wire to be insulated is insulated and protected, before the wire (the wire to be insulated) connected with equipment (such as an ammeter) to be overhauled is removed, the insulation cover is ensured to be in the first position, the subsequent wire disassembly is not hindered, and the elastic clamping piece is not pressed by the first pressing part and the second pressing part of the pressing structure, so that the wire can be fixed later. Then, the part of the electric wire with the insulating layer is clamped into the clamping groove of the elastic clamping piece, and the pressing structure is driven to move towards the direction close to the elastic clamping piece until the first pressing part and the second pressing part press the elastic clamping piece to clamp the electric wire so as to fix the position of the electric wire. Then, demolish the electric wire and wait to overhaul the connection of equipment, make the conductive joint of electric wire expose, the insulating cover of again operation makes it switch over to the second position from the first position, the insulating cover establishes the parcel with the conductive joint cover of electric wire and live, thereby make the conductive joint of electric wire and external isolation, realize the insulating protection of electric wire, when the maintainer waits to overhaul the equipment and overhauls and maintain this moment, can prevent to electrocute, guarantee the personal safety of maintainer, simultaneously, the existence of insulating cover can also prevent the contact short circuit between electric wire and the electric wire, guarantee electric power system's steady operation. After the overhaul and maintenance are finished, the insulating cover is adjusted to the first position from the second position, wiring operation is carried out, after wiring is finished, the pressing structure is driven to move reversely, so that the first pressing part and the second pressing part loosen the elastic clamping piece, and finally, the electric wire is separated from the clamping groove of the elastic clamping piece. When the electric wire insulation protection device is used for conducting insulation protection treatment on the electric wire, the electric wire insulation protection device can be used for simply clamping and covering the electric wire, other auxiliary tools are not needed, the operation is simple, the overhaul and maintenance operation efficiency can be improved, and the overhaul and maintenance cost is reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following description will briefly explain the drawings needed in the description of the embodiments of the present invention, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the contents of the embodiments of the present invention and these drawings without inventive effort for those skilled in the art.
Fig. 1 is a schematic view of a first structure of an insulation protection device for an electric wire according to an embodiment of the present invention (an insulation cover is in a first position);
fig. 2 is a second schematic structural view of an insulation protection device for an electric wire according to an embodiment of the present invention (the insulation cover is in a second position);
fig. 3 is a first exploded view of a wire insulation protection device according to an embodiment of the present invention;
FIG. 4 is a second exploded view of the wire insulation protection device according to the embodiment of the present invention;
Fig. 5 is a flowchart of a method for protecting insulation of an electric wire according to an embodiment of the present invention.
In the figure:
1. the device comprises a mounting matrix, an elastic clamping piece, a pressing structure, an insulating cover, an adjusting screw and a mounting base, wherein the elastic clamping piece is arranged on the mounting matrix;
11. A first substrate; 12 parts of a second base body, 13 parts of a first connecting plate, 14 parts of a second connecting plate, 15 parts of a rotating groove, 16 parts of a rotating hole;
111. 112, a chute;
121. the second limit groove;
21. the clamping device comprises a first clamping part, a second clamping part, a clamping groove, a pushing inclined plane and a clamping groove, wherein the clamping groove is formed in the clamping groove;
31. A first pressing portion; 32, a second pressing part, 33, a connecting part;
311. 321, second compression surface;
3111. 3112, pressing plane, 3113, second inclined plane;
331. a slider 332, a threaded bore;
40. A housing cavity, 401, an end opening, 402, a side opening;
41. The device comprises a limiting rod, a 42, an adapter part, 421 and a rotating shaft;
51. An operation unit;
100. and 101, an electric wire and a conductive connector.
Detailed Description
In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved more clear, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to fall within the scope of the invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first position" and "second position" are two different positions.
In the description of the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected or detachably connected, mechanically connected or electrically connected, directly connected or indirectly connected through intermediaries, or may be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Example 1
As shown in fig. 1 to 4, the present embodiment provides an electric wire insulation protection device, which can prevent electric shock during overhaul and maintenance, ensure operation safety, improve operation efficiency, and reduce overhaul and maintenance costs. The wire insulation protection device comprises a mounting base body 1, an elastic clamping piece 2, a pressing structure 3 and an insulation cover 4.
Referring to fig. 1 and 2, the elastic clamping member 2 is disposed on the mounting base 1, and the elastic clamping member 2 has a clamping groove 23, where the clamping groove 23 is used for clamping the electric wire 100 to be insulated. The compressing structure 3 is movably arranged on the mounting base body 1, the compressing structure 3 comprises a first compressing part 31 and a second compressing part 32 which are respectively arranged at two sides of the elastic clamping piece 2, and when the compressing structure 3 moves towards the direction close to the elastic clamping piece 2, the first compressing part 31 and the second compressing part 32 can squeeze the elastic clamping piece 2 to clamp the electric wire 100 in the clamping groove 23. The insulating cover 4 is movably connected to the mounting base 1, and has a first position in which the insulating cover 4 avoids the conductive connector 101 of the electric wire 100 (as shown in fig. 1), and a second position in which the insulating cover 4 is covered outside the conductive connector 101 of the electric wire 100 (as shown in fig. 2).
In the wire insulation protection device provided in this embodiment, before removing the wire 100 (wire 100 to be insulated) connected to the device to be overhauled (for example, an ammeter) when the wire 100 to be insulated is insulated, the insulation cover 4 is ensured to be in the first position, the wire 100 is not prevented from being dismounted subsequently, and the elastic clamping piece 2 is not compressed by the first compressing portion 31 and the second compressing portion 32 of the compressing structure 3, so that the wire 100 is fixed subsequently. Then, the portion of the electric wire 100 with the insulating layer is clamped into the clamping groove 23 of the elastic clamping member 2, and the pressing structure 3 is driven to move towards the direction approaching the elastic clamping member 2 until the first pressing portion 31 and the second pressing portion 32 press the elastic clamping member 2 to clamp the electric wire 100, so as to fix the position of the electric wire 100.
Then, the connection between the electric wire 100 and the equipment to be overhauled is dismantled, the conductive connector 101 of the electric wire 100 is exposed, the insulating cover 4 is operated to switch from the first position to the second position, the insulating cover 4 covers the conductive connector 101 of the electric wire 100, so that the conductive connector 101 of the electric wire 100 is isolated from the outside, the insulation protection of the electric wire 100 is realized, an overhauling staff can prevent electric shock when overhauling and maintaining the equipment to be overhauled, the personal safety of the overhauling staff is ensured, meanwhile, the existence of the insulating cover 4 can also prevent contact short circuit between the electric wire 100 and the electric wire 100, and the stable operation of a power system is ensured.
After the maintenance is finished, the insulating cover 4 is adjusted to the first position from the second position, the wiring operation is performed, after the wiring is finished, the pressing structure 3 is driven to move reversely, so that the first pressing part 31 and the second pressing part 32 loosen the elastic clamping piece 2, and finally, the electric wire 100 is separated from the clamping groove 23 of the elastic clamping piece 2. When the electric wire 100 is insulated and protected by the electric wire insulation protection device, the electric wire insulation protection device can be used for simply clamping and covering the electric wire 100 without other auxiliary tools, is simple to operate, and can improve the overhaul and maintenance operation efficiency, thereby reducing the overhaul and maintenance cost.
Alternatively, the mounting base 1, the elastic clamping member 2, the pressing structure 3 and the insulating cover 4 are all made of an insulating material. So set up, can improve the insulating properties of whole device, effectively prevent to electrocute, improve the safety in utilization. The insulating material is plastic with certain elasticity, so that the insulating effect can be ensured, the whole structure is firm and durable, and the production and the maintenance are easy.
Alternatively, referring to fig. 1, 2 and 3, the elastic clamping member 2 includes a first clamping portion 21 and a second clamping portion 22 that are disposed at intervals, a clamping groove 23 is formed between the first clamping portion 21 and the second clamping portion 22, and when the pressing structure 3 moves relative to the mounting base 1, the first clamping portion 21 and the second clamping portion 22 are close to or far from each other. When the pressing structure 3 is driven to approach the elastic clamping member 2, the first pressing portion 31 and the second pressing portion 32 co-press the elastic clamping member 2, bringing the first clamping portion 21 and the second clamping portion 22 to approach each other, thereby clamping the electric wire 100. When the pressing structure 3 is driven away from the elastic clamping member 2, the force of the first pressing portion 31 and the second pressing portion 32 on the elastic clamping member 2 is reduced, and the first clamping portion 21 and the second clamping portion 22 can be moved away from each other, thereby releasing the electric wire 100, facilitating the operation of the electric wire 100 to be separated from the elastic clamping member 2. The first clamping part 21 and the second clamping part 22 can clamp or loosen the electric wire 100 by operating the compressing structure 3 to move forward or backward, so that the operation difficulty can be reduced, the on-site operation of an maintainer is facilitated, and the operation efficiency is improved.
In the present embodiment, the first clamping portion 21 and the second clamping portion 22 are each made of a flexible material and are capable of being elastically deformed. When the pressing structure 3 moves close to the elastic clamping piece 2, the first clamping part 21 and the second clamping part 22 are close to each other and elastically deform, elastic potential energy is accumulated, and when the pressing structure 3 moves away from the elastic clamping piece 2, the first clamping part 21 and the second clamping part 22 are away from each other under the action of self elasticity, the electric wire 100 is automatically loosened, no additional operation is needed, and the operation steps of insulating and protecting the electric wire 100 are further simplified.
Further, the first clamping portion 21 and the second clamping portion 22 are integrally formed components, and the overall cross section is C-shaped, so that the structural design can be simplified, and the processing cost can be reduced. The elastic clamping member 2 is illustratively made entirely of a rubber material, or the elastic clamping member 2 is made of an elastically deformable plastic.
In other embodiments, the first clamping portion 21 and the second clamping portion 22 may be formed by separate processing, wherein one ends of the two clamping portions are rotatably connected to the mounting base 1, and a torsion spring is installed, and when the pressing structure 3 moves away from the first clamping portion 21 and the second clamping portion 22, the first clamping portion 21 and the second clamping portion 22 are away from each other under the action of the elasticity of the torsion spring, so as to release the electric wire 100.
Alternatively, referring to fig. 2, 3 and 4, the side of the first clamping portion 21 and the side of the second clamping portion 22 facing away from each other are respectively provided with a pushing inclined surface 24, the pushing inclined surfaces 24 incline towards the direction facing away from the clamping groove 23, and when the pressing structure 3 moves relative to the mounting base 1, the first pressing portion 31 is in sliding fit with the pushing inclined surfaces 24 of the first clamping portion 21, and the second pressing portion 32 is in sliding fit with the pushing inclined surfaces 24 of the second clamping portion 22. Since the pushing inclined surface 24 is inclined away from the clamping groove 23, when the pressing structure 3 moves close to the elastic clamping member 2, the first pressing portion 31 generates an inward pushing force on the first clamping portion 21, and the second pressing portion 32 generates an inward pushing force on the second clamping portion 22, so that the first clamping portion 21 and the second clamping portion 22 are close to each other, and the electric wire 100 is clamped.
In addition, the setting of pushing inclined plane 24 can adjust the distance that compresses tightly structure 3 moved according to the wire diameter size of electric wire 100 to change the distance that first clamping part 21 and second clamping part 22 are close to each other, thereby change the clamping force of first clamping part 21 and second clamping part 22, can adapt to the electric wire 100 of clamping different wire diameters, enlarge the application range of this electric wire insulation protection device, the commonality is stronger.
Alternatively, referring to fig. 2 and 3, a side of the first pressing portion 31 facing the second pressing portion 32 has a first pressing surface 311, a side of the second pressing portion 32 facing the first pressing portion 31 has a second pressing surface 321, and both the first pressing surface 311 and the second pressing surface 321 can be in contact with the elastic clamping member 2. When the pressing structure 3 is driven to move relative to the mounting base 1, the first pressing surface 311 and the second pressing surface 321 jointly act to press the elastic clamping member 2, so that the elastic clamping member 2 clamps the electric wire 100 in the clamping groove 23.
Referring to fig. 3, the first compression surface 311 and the second compression surface 321 each include a first inclined surface 3111, a compression plane 3112, and a second inclined surface 3113 that are sequentially connected, the two first inclined surfaces 3111 being inclined toward a direction away from the compression plane 3112, and the two second inclined surfaces 3113 being inclined toward a direction toward each other in a direction away from the compression plane 3112. Wherein, the two first inclined planes 3111 can be respectively contacted with the pushing inclined plane 24 of the first clamping portion 21 and the pushing inclined plane 24 of the second clamping portion 22, and by adjusting the moving distance of the pressing structure 3, the contact position of the first inclined plane 3111 and the pushing inclined plane 24 can be changed, so as to change the clamping force of the first clamping portion 21 and the second clamping portion 22, and adapt to clamping of the electric wires 100 with different wire diameters. In addition, the provision of the two first inclined surfaces 3111 makes the opening of the space formed between the first pressing portion 31 and the second pressing portion 32 be a flare, and makes it possible to make the elastic clip 2 more easily caught between the first pressing portion 31 and the second pressing portion 32, reducing resistance at the time of operation. And, when the pressing structure 3 moves away from the elastic clamping member 2, the two first inclined surfaces 3111 can gradually release the first clamping portion 21 and the second clamping portion 22, preventing the wire 100 from being suddenly sprung out, and improving operation safety.
When the two pressing planes 3112 are matched to press the first clamping portion 21 and the second clamping portion 22, a force receiving area can be ensured, and clamping stability of the electric wire 100 can be improved. Since the two second inclined surfaces 3113 are inclined toward each other in a direction away from the pressing plane 3112, the root structural strength of the first pressing portion 31 and the second pressing portion 32 is made higher, thereby securing the pressing stability.
In other embodiments, it is also possible to design the first clamping surface 311 and the second clamping surface 321 to be inclined towards each other in a direction away from the elastic clamping member 2. That is, the first clamping surface 311 and the second clamping surface 321 are inclined surfaces, and the first clamping portion 21 and the second clamping portion 22 can be similarly clamped or unclamped by driving the clamping structure 3 to approach or separate from the elastic clamping member 2, thereby clamping or unclamping the electric wire 100. Meanwhile, by adjusting the distance that the pressing structure 3 moves, the clamping force of the first clamping portion 21 and the second clamping portion 22 can be changed to accommodate clamping of the electric wires 100 of different wire diameters.
Optionally, referring to fig. 1,2 and 3, the pressing structure 3 further includes a connection portion 33, where the first pressing portion 31 and the second pressing portion 32 are disposed at intervals on the connection portion 33, and the connection portion 33 is slidably connected to the mounting base 1. The adjusting screw 5 is rotationally connected to the mounting base body 1, the adjusting screw 5 extends along the sliding direction of the pressing structure 3, the adjusting screw 5 penetrates through the connecting portion 33 and is in threaded fit with the connecting portion 33, and the pressing structure 3 can be driven to slide relative to the mounting base body 1 when the adjusting screw 5 is screwed. Because the adjusting screw 5 is in threaded fit with the connecting portion 33, and the connecting portion 33 is in sliding connection with the mounting base 1, the pressing structure 3 can only move linearly as a whole, so when the adjusting screw 5 is screwed, the adjusting screw 5 can drive the pressing structure 3 to slide, and the first pressing portion 31 and the second pressing portion 32 press or release the first clamping portion 21 and the second clamping portion 22. And, the setting of adjusting screw 5 can make the hold-down structure 3 stay in arbitrary position on its slip path to keep in current position, need not additionally to carry out fixed operation to hold-down structure 3, simplify the operation flow, can be according to the stepless position of adjusting hold-down structure 3 of the size of electric wire 100 simultaneously, the flexibility of use is strong, and the range of application is extensive.
Referring to fig. 4, the connection portion 33 is provided with a screw hole 332, the adjusting screw 5 is screw-fitted with the connection portion 33 through the screw hole 332, and one end of the adjusting screw 5 passing through the screw hole 332 is rotatably connected with the mounting base 1. Further, the adjusting screw 5 is provided with an operating part 51, and an maintainer can screw the adjusting screw 5 through the operating part 51, so that time and labor are saved.
Of course, in other embodiments, a clamping structure, a magnetic attraction structure, etc. may be provided between the pressing structure 3 and the mounting base 1 to fix the position of the pressing structure 3, so that the pressing structure 3 is kept at the position of the pressing elastic clamping member 2.
In this embodiment, the first pressing portion 31, the second pressing portion 32 and the connecting portion 33 are integrally formed, so that the processing procedure is simplified, and the production cost is reduced. In other embodiments, the first pressing portion 31, the second pressing portion 32 and the connecting portion 33 may be assembled together after being molded separately.
Alternatively, referring to fig. 1,2,3 and 4, one end of the insulating cover 4 is provided with a limiting rod 41, one end of the limiting rod 41 away from the insulating cover 4 is rotatably connected with the mounting base 1, a first limiting groove 111 and a second limiting groove 121 are provided on the mounting base 1, when the insulating cover 4 is in the first position, the limiting rod 41 is clamped and limited in the first limiting groove 111, and when the insulating cover 4 is in the second position, the limiting rod 41 is clamped and limited in the second limiting groove 121. Before the electric wire 100 is detached, the limiting rod 41 is limited by the first limiting groove 111, so that the insulating cover 4 can be stably kept at the first position, and interference with the wire detachment operation is avoided. After the electric wire 100 is disassembled, the insulating cover 4 is rotated to enable the limiting rod 41 to be separated from the first limiting groove 111 and clamped into the second limiting groove 121, so that the insulating cover 4 can be stably kept at the second position, the conductive connector 101 of the electric wire 100 is covered, the conductive connector 101 is insulated and isolated from the outside, and the operation safety of maintenance personnel is ensured. After the maintenance is completed, the insulating cover 4 is rotated back to the first position, and the limiting rod 41 is separated from the second limiting groove 121 and clamped into the first limiting groove 111, so that the wiring operation is facilitated. The mode of adjusting the position of the insulating cover 4 is rotated, the operation mode is simple, and the working efficiency is high.
Referring to fig. 3 and 4, the mounting base 1 includes a first base 11 and a second base 12 disposed at an included angle, the adjusting screw 5 and the first limiting groove 111 are disposed on opposite sides of the first base 11, the pressing structure 3 is slidably connected to the first base 11, the elastic clamping member 2 and the second limiting groove 121 are disposed on opposite sides of the second base 12, and an opening of the first limiting groove 111 is opposite to an opening of the second limiting groove 121. The structure design is reasonable in layout, the screwing operation of the adjusting screw 5 can be guaranteed not to interfere with the rotation operation of the insulating cover 4, and the whole volume of the wire insulation protection device can be reduced as much as possible.
In this embodiment, the first substrate 11 is perpendicular to the second substrate 12, and the insulating cover 4 can be switched from the first position to the second position by rotating 90 °. In other embodiments, the included angle between the first substrate 11 and the second substrate 12 may be set according to actual requirements.
Further, referring to fig. 4, one end of the second base 12 protrudes from a side of the first base 11 facing away from the first limiting groove 111, and the adjusting screw 5 is rotatably connected to the protruding portion of the second base 12.
Optionally, a first elastic block is disposed on the first substrate 11 of the mounting substrate 1, the first elastic block is disposed with the first limiting groove 111, and a second elastic block is disposed on the second substrate 12 of the mounting substrate 1, and the second elastic block is disposed with the second limiting groove 121. So set up, when the gag lever post 41 card goes into first spacing groove 111 or second spacing groove 121, first elastic block, second elastic block can produce elastic deformation correspondingly to make gag lever post 41 chucking in first spacing groove 111 or second spacing groove 121, further guarantee that insulating boot 4 is fixed firm in first position and second position.
Alternatively, the first substrate 11, the second substrate 12, the first elastic block and the second elastic block are integrally formed, for example, may be integrally injection molded, and the processing technology is simple, and the overall structure is stable and the service life is long.
Referring to fig. 3 and 4, an end of the limit lever 41, which is far away from the insulating cover 4, is provided with an adapter part 42, a rotating groove 15 is provided on the mounting base 1, and the adapter part 42 is rotatably mounted in the rotating groove 15 through a rotating shaft 421, so as to realize the rotary connection of the limit lever 41 and the mounting base 1. Specifically, the first connection plate 13 and the second connection plate 14 are disposed at a connection position of the first substrate 11 and the second substrate 12 at intervals, a rotation groove 15 is formed between the first connection plate 13 and the second connection plate 14, rotation holes 16 are formed in the first connection plate 13 and the second connection plate 14, a rotation shaft 421 is fixedly disposed on the adapter 42, one end of the rotation shaft 421 extends into the rotation hole 16 of the first connection plate 13, the other end extends into the rotation hole 16 of the second connection plate 14, and the rotation shaft 421 is in rotation fit with the rotation hole 16.
In this embodiment, the rotation axis of the limiting rod 41 is located at the intersection point of the extending line of the first limiting groove 111 and the extending line of the second limiting groove 121, so that when the insulating cover 4 rotates to the first position or the second position, the limiting rod 41 can be correspondingly and completely clamped into the first limiting groove 111 or the second limiting groove 121, and the insulating cover 4 is ensured to be firmly fixed in the first position and the second position.
Alternatively, referring to fig. 1 and 2, the insulating cover 4 has a cover cavity 40, one end of the cover cavity 40 is closed, the other end is opened to form an end opening 401, and the cover cavity 40 has a side opening 402 communicating with the end opening 401, and the electric wire 100 is caught in the cover cavity 40 via the end opening 401 and the side opening 402. In the process of rotating the insulating cover 4 from the first position to the second position, the electric wire 100 automatically enters the cover cavity 40 from the end opening 401 and the side opening 402 of the insulating cover 4, so that the insulating isolation of the conductive connector 101 is finished, and the operation is convenient.
In this embodiment, the extending direction of the second limiting groove 121 is identical to the extending direction of the clamping groove 23, so that the electric wire 100 is just completely hidden in the housing cavity 40 of the insulating cover 4 when the insulating cover 4 rotates to the second position.
Optionally, the insulating cover 4 has a cover cavity 40, and the depth dimension of the cover cavity 40 is larger than the wire diameter dimension of the electric wire 100. By the arrangement, the conductive connector 101 of the electric wire 100 can be completely hidden in the cover cavity 40, a certain safety distance exists between the conductive connector 101 and the outer edge of the insulating cover 4, the contact between the contact of the arm and other parts of an maintainer and the conductive connector 101 when the contact touches the side opening 402 of the cover cavity 40 is prevented, the insulating isolation performance of the insulating cover 4 is improved, and the safety is higher.
Further, the limiting rod 41 and the covering cavity 40 are arranged in a staggered manner, so that when the second position is ensured, the covering cavity 40 and the clamping groove 23 are on the same straight line, and the electric wire 100 can be completely clamped into the covering cavity 40, and the insulation effect is ensured.
Referring to fig. 2 and 3, a sliding space is formed between the first pressing portion 31 and the second pressing portion 32, and the mounting base 1 is at least partially located in the sliding space. The arrangement makes the structure of the wire insulation protection device more compact, reduces the volume of the device, and is convenient for maintenance personnel to carry and convenient to use.
Referring to fig. 4, one of the mounting base 1 and the pressing structure 3 is provided with a slide groove 112, and the other is provided with a slider 331, and the slider 331 is slidably engaged with the slide groove 112. In this embodiment, the first base 11 of the mounting base 1 is provided with the sliding groove 112, the connecting portion 33 of the pressing structure 3 is provided with the sliding block 331, and the sliding block 331 and the sliding groove 112 are slidably matched to limit the moving direction of the pressing structure 3, so as to ensure the pressing effect of the first pressing portion 31 and the second pressing portion 32 on the elastic clamping member 2. Further, the upper and lower sides of the first substrate 11 are provided with sliding grooves 112, the connecting portion 33 is provided with two sliding blocks 331 at intervals, the two sliding blocks 331 are in one-to-one sliding fit with the two sliding grooves 112, and sliding stability of the pressing structure 3 is improved.
In other embodiments, an elongated slider 331 extending along the sliding direction of the pressing structure 3 may be provided on the first base 11 of the mounting base 1, and a sliding slot 112 may be provided on the connecting portion 33 of the pressing structure 3, where the slider 331 is slidably engaged with the sliding slot 112.
Example two
As shown in fig. 5, the present embodiment provides a wire insulation protection method, which performs insulation treatment on a wire 100 to be insulated by using the wire insulation protection device according to the first embodiment, and includes the following steps:
s1, adjusting the compression structure 3 to a state of not compressing the elastic clamping piece 2, and enabling the insulating cover 4 to be in a first position;
s2, clamping the wire 100 to be insulated into the clamping groove 23 of the elastic clamping piece 2;
S3, driving the pressing structure 3 to move towards the direction approaching the elastic clamping piece 2, so that the first pressing part 31 and the second pressing part 32 press the elastic clamping piece 2 to clamp the electric wire 100;
S4, connecting the electric wire 100 with equipment to be overhauled is released, so that the conductive connector 101 of the electric wire 100 is exposed;
S5, adjusting the insulating cover 4 to the second position so that the insulating cover 4 covers the conductive connector 101 of the electric wire 100.
According to the wire insulation protection method, the wire 100 is fixed before the wire 100 is disassembled, and an operator operates the part of the wire 100 with the insulation layer, so that the contact of the electrified part can be avoided, and electric shock accidents are prevented. In addition, when the conductive connector 101 of the electric wire 100 is covered, the maintainer only needs to contact the insulating cover 4, so that the electric shock risk is further reduced. The presence of the insulating cover 4 also prevents contact shorts between the wires 100 and the wires 100, ensuring stable operation of the power system.
According to the wire insulation protection method provided by the embodiment, when the wire 100 is insulated through the wire insulation protection device, an maintainer can complete insulation isolation of the wire 100 by only clamping the wire 100, screwing the adjusting screw 5 and rotating the insulation cover 4, so that the operation is very convenient, other professional tools are not needed, and the working efficiency is improved. Moreover, the wire insulation protection device can be suitable for wires 100 with different specifications, and the clamping force of the elastic clamping piece 2 can be adjusted by screwing the adjusting screw 5, so that the application range is wide.
Note that the above is only a preferred embodiment of the present invention and the technical principle applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, while the invention has been described in connection with the above embodiments, the invention is not limited to the embodiments, but may be embodied in many other equivalent forms without departing from the spirit or scope of the invention, which is set forth in the following claims.

Claims (10)

1. An electric wire insulation protection device, characterized by comprising:
a mounting base (1);
the elastic clamping piece (2) is arranged on the mounting base body (1), the elastic clamping piece (2) is provided with a clamping groove (23), and the clamping groove (23) is used for clamping an electric wire (100) to be insulated;
The pressing structure (3) is movably arranged on the mounting base body (1), the pressing structure (3) comprises a first pressing part (31) and a second pressing part (32) which are respectively arranged on two sides of the elastic clamping piece (2), and when the pressing structure (3) moves towards a direction close to the elastic clamping piece (2), the first pressing part (31) and the second pressing part (32) can press the elastic clamping piece (2) to clamp the electric wire (100) in the clamping groove (23);
The insulating cover (4) is movably connected to the mounting base body (1) and is provided with a first position and a second position, when the insulating cover (4) is at the first position, the insulating cover avoids the conductive connector (101) of the electric wire (100), and when the insulating cover (4) is at the second position, the insulating cover is covered outside the conductive connector (101) of the electric wire (100).
2. The wire insulation protection device according to claim 1, characterized in that a side of the first pressing portion (31) facing the second pressing portion (32) has a first pressing surface (311), a side of the second pressing portion (32) facing the first pressing portion (31) has a second pressing surface (321), and both the first pressing surface (311) and the second pressing surface (321) are contactable with the elastic clamp (2);
The first compression surface (311) and the second compression surface (321) each comprise a first inclined surface (3111), a compression plane (3112) and a second inclined surface (3113) which are sequentially connected, the two first inclined surfaces (3111) incline towards the direction away from each other along the direction away from the compression plane (3112), the two second inclined surfaces (3113) incline towards the direction close to each other along the direction away from the compression plane (3112), or the first compression surface (311) and the second compression surface (321) incline towards each other along the direction away from the elastic clamping piece (2).
3. The wire insulation protection device according to claim 1, characterized in that the pressing structure (3) further comprises a connecting portion (33), the first pressing portion (31) and the second pressing portion (32) are provided at intervals to the connecting portion (33), the connecting portion (33) is slidably connected with the mounting base body (1);
The mounting base body (1) is rotationally connected with an adjusting screw (5), the adjusting screw (5) extends along the sliding direction of the pressing structure (3), the adjusting screw (5) penetrates through the connecting portion (33) and is in threaded fit with the connecting portion (33), and the pressing structure (3) can be driven to slide relative to the mounting base body (1) when the adjusting screw (5) is screwed.
4. A wire insulation protection device according to claim 3, characterized in that one end of the insulation cover (4) is provided with a limit lever (41), one end of the limit lever (41) away from the insulation cover (4) is rotationally connected with the installation base body (1), a first limit groove (111) and a second limit groove (121) are arranged on the installation base body (1), when the insulation cover (4) is in the first position, the limit lever (41) is clamped and limited in the first limit groove (111), and when the insulation cover (4) is in the second position, the limit lever (41) is clamped and limited in the second limit groove (121).
5. The wire insulation protection device according to claim 4, wherein an end of the limit rod (41) away from the insulation cover (4) is provided with a switching part (42), the installation base body (1) is provided with a rotating groove (15), and the switching part (42) is rotatably installed in the rotating groove (15) through a rotating shaft (421);
and/or the rotation axis of the limiting rod (41) is positioned on the intersection point of the extension line of the first limiting groove (111) and the extension line of the second limiting groove (121);
And/or, install base member (1) including first base member (11) and second base member (12) that are the contained angle setting, adjusting screw (5) with first spacing groove (111) divide to locate the relative both sides of first base member (11), compress tightly structure (3) sliding connection in first base member (11), elasticity holder (2) with second spacing groove (121) divide to locate the relative both sides of second base member (12), just the opening of first spacing groove (111) with the opening of second spacing groove (121) is relative.
6. A wire insulation protection device according to claim 3, characterized in that a sliding space is formed between the first and second pressing portions (31, 32), the mounting base (1) being at least partially located in the sliding space;
and/or one of the mounting base body (1) and the pressing structure (3) is provided with a sliding groove (112), and the other is provided with a sliding block (331), and the sliding block (331) is in sliding fit with the sliding groove (112).
7. The wire insulation protection device according to any one of claims 1 to 6, characterized in that the insulation cover (4) has a cover cavity (40), one end of the cover cavity (40) is closed, the other end is open to form an end opening (401), and the cover cavity (40) has a side opening (402) communicating with the end opening (401), the wire (100) being caught into the cover cavity (40) via the end opening (401) and the side opening (402);
and/or the insulating cover (4) is provided with a cover cavity (40), and the depth dimension of the cover cavity (40) is larger than the wire diameter dimension of the electric wire (100);
And/or the mounting base body (1), the elastic clamping piece (2), the pressing structure (3) and the insulating cover (4) are all made of insulating materials.
8. The wire insulation protection device according to any one of claims 1 to 6, wherein the elastic clamping member (2) includes a first clamping portion (21) and a second clamping portion (22) that are disposed at intervals, the clamping groove (23) is formed between the first clamping portion (21) and the second clamping portion (22), and the first clamping portion (21) and the second clamping portion (22) are moved toward or away from each other when the pressing structure (3) moves relative to the mounting base body (1).
9. The wire insulation protection device according to claim 8, characterized in that the first clamping portion (21) and the second clamping portion (22) are each provided with a push-against inclined surface (24) on a side facing away from each other, the push-against inclined surface (24) being inclined in a direction facing away from the clamping groove (23), the first pressing portion (31) being in sliding engagement with the push-against inclined surface (24) of the first clamping portion (21) and the second pressing portion (32) being in sliding engagement with the push-against inclined surface (24) of the second clamping portion (22) when the pressing structure (3) is moved relative to the mounting base (1);
And/or the first clamping part (21) and the second clamping part (22) are made of flexible materials and can generate elastic deformation.
10. A method of insulating a wire, characterized in that the wire (100) to be insulated is insulated with the wire insulation protection device according to any one of claims 1 to 9, comprising the steps of:
-adjusting the compression structure (3) to a state of not compressing the elastic clamping member (2) and bringing the insulating cover (4) in the first position;
Clamping the wire (100) to be insulated into the clamping groove (23) of the elastic clamping piece (2);
-driving the pressing structure (3) to move in a direction approaching the elastic clamping member (2) so that the first pressing portion (31) and the second pressing portion (32) press the elastic clamping member (2) to clamp the electric wire (100);
disconnecting the electric wire (100) from the equipment to be overhauled to expose the conductive connector (101) of the electric wire (100);
The insulating cover (4) is adjusted to the second position, so that the insulating cover (4) covers the conductive connector (101) of the electric wire (100).
CN202411736411.7A 2024-11-29 2024-11-29 Wire insulation protection device and wire insulation protection method Active CN119581106B (en)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN210866545U (en) * 2019-09-11 2020-06-26 广东电网有限责任公司 Sliding type anti-falling power supply device
CN113991557A (en) * 2021-11-19 2022-01-28 广西电网有限责任公司南宁供电局 Low-voltage wire end insulation cover

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0716297Y2 (en) * 1992-06-26 1995-04-12 中部電力株式会社 Electric wire connector with insulation cover
US5800645A (en) * 1996-03-20 1998-09-01 Gatz; John F. System for encapsulation of electric wire splices
CA2840808C (en) * 2013-06-04 2016-08-16 Taketo NISHIKAWA Structure for end of mi cable and method for producing the same
WO2023188479A1 (en) * 2022-04-01 2023-10-05 株式会社オートネットワーク技術研究所 Wire harness
CN115693195A (en) * 2022-10-10 2023-02-03 安徽伊法拉电力科技有限公司 Transformer parallel groove clamp insulation protective cover
EP4652651A1 (en) * 2023-01-20 2025-11-26 Safran Cabin France Protection for an electrical bonding point

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN210866545U (en) * 2019-09-11 2020-06-26 广东电网有限责任公司 Sliding type anti-falling power supply device
CN113991557A (en) * 2021-11-19 2022-01-28 广西电网有限责任公司南宁供电局 Low-voltage wire end insulation cover

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