阅读说明：本技术 一种自愈型电力线夹 (Self-healing type electric power wire clamp ) 是由 孙更 刘安阳 张亚涛 王爱众 秦卫东 史义 赵宇 陈忠令 杜德雨 罗杨瑞 于 2018-07-31 设计创作，主要内容包括：本发明公开了一种自愈型电力线夹,包括线夹本体和接续管,所述线夹本体上设置卡线槽和连接板一,连接板一为板状,所述接续管为圆柱管,所述接续管端部设置连接板二,连接板一和连接板二上设置对应的螺栓孔,连接板一和连接板二通过螺栓和螺母固定,螺母和连接板一之间设置垫圈；连接板一上设置钻孔,钻孔内灌入锡。本发明解决了电力线夹发热问题,线夹出现松动或接触不良而发热时可自动愈合,无需停电维修,从而保证电力系统的安全稳定运行。(The invention discloses a self-healing electric power wire clamp which comprises a wire clamp body and a splicing sleeve, wherein a wire clamping groove and a first connecting plate are arranged on the wire clamp body, the first connecting plate is plate-shaped, the splicing sleeve is a cylindrical pipe, the end part of the splicing sleeve is provided with a second connecting plate, the first connecting plate and the second connecting plate are provided with corresponding bolt holes, the first connecting plate and the second connecting plate are fixed through bolts and nuts, and a gasket is arranged between the nuts and the first connecting plate; and a drill hole is formed in the first connecting plate, and tin is poured into the drill hole. The invention solves the heating problem of the power wire clamp, the wire clamp can automatically heal when being heated due to looseness or poor contact, and power failure maintenance is not needed, thereby ensuring the safe and stable operation of a power system.)

1. The utility model provides a self-healing type electric power fastener which characterized in that: the connecting plate I and the connecting plate II are fixed through bolts and nuts, and a gasket is arranged between the nuts and the connecting plate I; and a drill hole is formed in the first connecting plate, and tin is poured into the drill hole.

2. A self-healing power cable clamp according to claim 1, characterized in that: the wire clamping groove is in a circular tube shape, an opening is formed in the outer side of the wire clamping groove, an open groove is formed in the outer side of the wire clamping groove, and a wire penetrates through the wire clamping groove.

3. A self-healing power cable clamp according to claim 1, characterized in that: and the contact surfaces of the first connecting plate and the second connecting plate are set into mutually meshed corrugated curved surfaces or stepped surfaces.

4. A self-healing power cable clamp according to claim 1, characterized in that: the washer is a steel spring washer.

5. A self-healing power cable clamp according to claim 1, characterized in that: the depth of the drilled hole is two thirds of the thickness of the connecting plate.

6. A self-healing power cable clamp according to claim 1, characterized in that: the amount of tin poured into the bore hole is two thirds of the bore hole capacity.

7. A self-healing power cable clamp according to claim 1, characterized in that: the tin contains three percent by weight of flux.

8. A self-healing power cable clamp according to claim 1, characterized in that: shallow holes are formed in the positions, corresponding to the drill holes in the first connecting plate, on the second connecting plate, and the depth of each shallow hole is 1 mm.

Technical Field

The invention relates to a connecting tool for a transmission line wire, in particular to a self-healing electric wire clamp.

Background

The heat generation of the electrical equipment is often encountered during work, which not only affects the normal operation of the equipment, but also causes the insulation aging of the electrical equipment to directly cause accidents. The heat generation of the power transformation operation equipment is a potential threat to the operation safety of the equipment.

A wiring clamp used in connection of a high-voltage line is characterized in that two wire grooves which are perpendicular to each other are formed in a wire clamp body of an existing T-shaped wire clamp, a pressing plate and a fixing bolt are arranged above one wire groove, a plurality of cross-diameter pressing plates which are distributed in parallel are arranged above the other wire groove of the wire clamp body and are also called as a diversion plate, and pressing plate bolts used for connecting the wire clamp body are arranged on the cross-diameter pressing plates.

However, the existing wire clamp has poor contact caused by looseness, corrosion and the like in the use process, abnormal overheating phenomena often occur, connection points or wire clamps are blown when the heating is serious, arcing discharge is caused, even leads are blown or interphase short circuit is caused, and great loss is caused.

Chinese patent document with an authorization publication number of CN 103311685 a discloses a wire branch connector, which comprises a wire clamping clip, a wire clamping clip cover, a branch rod and a tightening nut, and is characterized in that: the wire clamping clamp and the branch rod form a T-shaped conductive whole, a U-shaped long groove for embedding a main power conductor is arranged in the wire clamping clamp, and the wire clamping clamp is fixedly connected with the main power conductor by a wire clamping clamp cover: the branch line is fixedly connected with the branch rod, the branch rod inner hole, the branch rod larvae and the larvae claw clamping piece thereof by screwing a wire tightening nut. The invention can conveniently and quickly connect the branch lead to the main lead of the power supply, and ensure that the connection part can keep good conductive performance when being used for a long time, thereby achieving the purpose of safe electricity utilization. But if poor contact occurs in the use process, the heating cannot be automatically repaired, and the stable operation of the power system is damaged.

The Chinese patent document with the publication number of CN 206180535U discloses a T-shaped wire clamp, which comprises a wire clamp body and a connecting tube, wherein a wire clamping groove and a drainage plate are designed on the wire clamp body, the connecting tube is also correspondingly designed with the drainage plate, bolt holes are designed on the drainage plate, the wire clamp body and the connecting tube are fixedly connected with a nut by a bolt penetrating through the bolt hole on a deflector, and the drainage plate is subjected to surface treatment by a lens bed before connection and installation, so that the flatness of a corresponding occlusal surface is improved; the splicing sleeve is provided with a wiring hole which is designed in a horn mouth structure, and the structure design can facilitate the wire plugging operation; the wire clamping groove is provided with a bolt, and the bolt and the wire clamping groove can only move along the axial direction of the wire clamping groove. However, if the contact failure occurs in the using process of the wire clamp, the wire clamp cannot be automatically repaired when the heat is generated, and the problems cannot be solved.

Disclosure of Invention

In view of this, the present invention provides a self-healing power cable clamp, which solves the problem of heating of the power cable clamp, and the cable clamp can automatically heal when being heated due to looseness or poor contact, and does not need power failure maintenance, so as to ensure safe and stable operation of a power system.

In order to achieve the purpose, the invention adopts the following technical scheme: a self-healing electric power wire clamp comprises a wire clamp body and a splicing sleeve, wherein a wire clamping groove and a first connecting plate are arranged on the wire clamp body, the first connecting plate is plate-shaped, the splicing sleeve is a cylindrical pipe, a second connecting plate is arranged at the end part of the splicing sleeve, corresponding bolt holes are formed in the first connecting plate and the second connecting plate, the first connecting plate and the second connecting plate are fixed through bolts and nuts, and a gasket is arranged between the nuts and the first connecting plate; and a drill hole is formed in the first connecting plate, and tin is poured into the drill hole.

As a preferred structure of the invention, the wire clamping groove is in a circular tube shape, an opening is formed at the outer side of the wire clamping groove to form an open groove, and a wire passes through the wire clamping groove.

As a preferable structure of the present invention, the contact surfaces of the first connecting plate and the second connecting plate are configured as mutually engaged corrugated curved surfaces or stepped surfaces.

As a preferred structure of the present invention, the washer is a steel spring washer.

As a preferred construction of the invention, the drilling depth is two thirds of the thickness of the web.

As a preferred construction of the invention, the amount of tin poured into the bore hole is two thirds of the bore hole volume.

As a preferred construction of the invention, the tin contains three percent by weight of flux.

As a preferred structure of the invention, shallow holes are arranged on the second connecting plate corresponding to the drill holes on the first connecting plate, and the depth of the shallow holes is 1 mm.

As a preferable structure of the invention, the second connecting plate is provided with a groove, the shape of the groove is consistent with the shape of the cross sections of the first connecting plate and the wire clamping groove, a wire hole is arranged at the position corresponding to the wire clamping groove, and the outer side of the wire hole is open.

As a preferable structure of the invention, the inner wall of the wire clamping groove is also provided with a drill hole and is filled with tin.

As a preferred structure of the present invention, the inner wall of the splicing sleeve is also provided with a drilled hole and filled with tin.

As a preferable structure of the present invention, the inside of the wire-clamping groove and the inside of the splicing sleeve are provided with internal threads.

The invention has the beneficial effects that:

1. the connecting plate sets up the drilling on one, pours into the tin in the drilling, and the melting point of tin is at 232 degrees centigrade, and when the fastener generates heat unusually, the temperature exceeded the melting point of tin, and the tin in the drilling melts, fills the gap between wire and the fastener, increases the area of contact between wire and the fastener to solve contact failure phenomenon, realized the automatic healing of fastener, avoid continuing to generate heat and produce further destruction.

2. The wire clamping groove is in a circular tube shape, an opening is formed in the outer side of the wire clamping groove, an open groove is formed in the outer side of the wire clamping groove, and a wire penetrates through the wire clamping groove. The traditional wire clamping groove is provided with the plug pin block, the wire is wrapped and compressed by the wire clamping groove and the plug pin block under the action of hydraulic pliers when the wire clamping groove is used, but the plug pin block usually blocks the contraction of the wire clamping groove, so that a cavity is formed between the wire and the wire clamping groove or the plug pin block, and the contact area between the wire clamping groove and the wire is influenced. And coating conductive paste after the open slot is compressed.

3. The contact surfaces of the first connecting plate and the second connecting plate are set to be mutually meshed corrugated curved surfaces or stepped surfaces, the contact area of the curved surfaces or the stepped surfaces is increased, and the risk of poor contact is reduced.

4. The washer is a steel spring washer, and the steel washer is wear-resistant and has a good anti-vibration and anti-loosening effect.

5. The drilling depth is two-thirds of the thickness of the first connecting plate, and the drilling opening is arranged on the contact surface of the first connecting plate and the second connecting plate, so that the leakage loss of tin filling can be effectively prevented.

6. The volume of the tin poured into the drill hole is two thirds of the volume of the drill hole, the drill hole is not filled with the tin, and the tin is prevented from forming a bulge after being cooled to influence the attachment of the first connecting plate and the second connecting plate.

7. The tin contains three percent of soldering flux by weight, so that oxides can be removed, the surface tension of a welded material is reduced, and the tin is firmly welded with the first connecting plate and the second connecting plate.

8. Shallow holes are formed in the positions, corresponding to the drill holes in the first connecting plate, on the second connecting plate, the depth of each shallow hole is 1 mm, the shallow holes correspond to the positions of the drill holes, the attachment area and the containing space of tin on the second connecting plate are increased, and the tin is prevented from overflowing and leaking seriously after being melted.

9. And a groove is formed in the second connecting plate, the shape of the groove is consistent with that of the cross sections of the first connecting plate and the wire clamping groove, a wire hole is formed in the position corresponding to the wire clamping groove, and the outer side of the wire hole is open. The terminal surface of connecting plate one and card wire casing all is partly surrounded by the recess on the connecting plate two, further increases the contact surface that fastener body and splicing sleeve are connected, and groove structure effectively ensures the tin also can not the edgewise seepage when melting simultaneously.

10. The inner wall of the wire clamping groove is also provided with a drill hole and filled with tin, the inner wall of the splicing sleeve is also provided with a drill hole and filled with tin, the action of the drill hole and the tin filled drill hole on the first connecting plate is the same as that of the tin filled drill hole on the first connecting plate, if the wire clamping groove or the splicing sleeve is in poor contact with a wire to cause heating, the tin is melted, the tin flows out to connect the wire clamping groove or the splicing sleeve with the wire, the heating phenomenon disappears, and the tin welds the wire.

11. Internal threads are arranged in the wire clamping groove and the splicing sleeve, so that during construction, under the action of hydraulic pliers, the engaged wires in the wire clamping groove and the splicing sleeve are firmer by the thread edge teeth, and the anti-pulling capacity is stronger.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a left side view of FIG. 1;

FIG. 3 is a schematic diagram of the overall structure of the embodiment of the present invention;

FIG. 4 is a bottom view of FIG. 3;

reference numbers in the figures: 1-splicing sleeve, 2-wire clamping groove, 3-connecting plate I, 4-connecting plate II, 5-bolt hole, 6-bolt, 7-nut, 8-washer, 9-drilling hole, 10-tin, 11-shallow hole, 12-groove and 13-wire hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.