CN218896828U

CN218896828U - Bolt type copper-aluminum transition equipment wire clamp

Info

Publication number: CN218896828U
Application number: CN202222076238.5U
Authority: CN
Inventors: 孟汉敏; 郭善林; 沈荣生
Original assignee: Jiangsu Changyuan Electrical Equipment Co ltd
Current assignee: Jiangsu Changyuan Electrical Equipment Co ltd
Priority date: 2022-08-08
Filing date: 2022-08-08
Publication date: 2023-04-21
Anticipated expiration: 2032-08-08

Abstract

Bolt type copper-aluminum transition equipment wire clamp. Relates to the technical field of electric power fittings. Firm in connection, difficult fracture. Including the fastener body, the one end of fastener body is equipped with the gland, the gland with wear to be equipped with the bolt on the fastener body, the nut that has revolved to adaptation on the bolt, the nut with the bolt cooperation realizes the locking to the gland, the nut with be equipped with spring washer between the gland, the top of the other end of fastener body is equipped with the recess, be equipped with a pair of perforation in the recess, be equipped with the copper sheet in the recess, the bottom of copper sheet is equipped with a pair of gag lever post, a pair of gag lever post is located respectively and one-to-one in the perforation, the length of gag lever post is greater than the length of perforation.

Description

Bolt type copper-aluminum transition equipment wire clamp

Technical Field

The utility model relates to the technical field of electric power fittings, in particular to a bolt type copper-aluminum transition equipment wire clamp.

Background

The equipment wire clamp is mainly used for connecting a bus down-lead of a substation with an outgoing terminal of electrical equipment such as a transformer, a circuit breaker, an isolating switch, a transformer and the like. As the outgoing terminals of the common electrical equipment are copper and aluminum, and the bus outgoing lines are divided into aluminum stranded wires or steel-cored aluminum stranded wires, the equipment wire clamp is divided into two series of aluminum equipment wire clamps and copper-aluminum transition equipment wire clamps from the material.

When the equipment wire clamp is connected with the electrical equipment, as a plurality of equipment wire outlet ends are copper plates, two kinds of metal electrical transition with different potential differences can occur when the aluminum equipment wire clamp is connected with the copper terminal, and galvanic corrosion is easy to occur in operation, so that the galvanic corrosion can be effectively avoided by using the copper-aluminum equipment transition wire clamp. The existing copper-aluminum transition equipment wire clamp is formed by welding a copper plate on an aluminum substrate, so that an aluminum bus and electrical equipment are effectively connected. However, copper and aluminum have different physical and chemical properties, so that the welding performance is poor, the welding strength is low, and the welding is easy to break.

Disclosure of Invention

In order to overcome the defects of the prior art, the utility model provides the bolt type copper-aluminum transition equipment wire clamp which is firm in connection and not easy to break.

The utility model is realized by adopting the following technical scheme: the utility model provides a bolt type copper aluminium transition equipment fastener, includes the fastener body, the one end of fastener body is equipped with the gland, the gland with wear to be equipped with the bolt on the fastener body, the nut that is equipped with soon on the bolt with the bolt cooperation, realization are to the locking of gland, the nut with be equipped with spring washer between the gland, the top of the other end of fastener body is equipped with the recess, be equipped with a pair of perforation in the recess, be equipped with the copper sheet in the recess, the bottom of copper sheet is equipped with a pair of gag lever post, a pair of gag lever post is located respectively and one-to-one in a pair of perforation, the length of gag lever post is greater than fenestrate length.

In a preferred embodiment of the present utility model, the inner diameter of the through hole is equal to or smaller than the outer diameter of the stopper rod.

The preferred implementation mode of the utility model is that the bottom of the other end of the wire clamp body is provided with a clamping groove, one end of the limiting rod is fixedly connected with the bottom of the copper sheet, and the other end of the limiting rod is clamped in the clamping groove after being deformed.

The preferable implementation mode of the utility model is that the bottom of the clamping groove is provided with a plurality of pointed cones, and the pointed cones penetrate into the other end of the limiting rod.

The preferable implementation mode of the utility model is that the end face of the other end of the limiting rod is also provided with a cross groove, and the depth of the cross groove is more than or equal to the difference between the length of the limiting rod and the length of the perforation.

Compared with the prior art, the length of the limiting rod is larger than that of the perforation, so that after the copper sheet is attached to the bottom of the groove, the other end of the limiting rod can extend to the outside of the perforation, the other end of the limiting rod which is made of copper is deformed and gradually increased in sectional area in a knocking mode, and finally, the limiting rod is in an inverted T shape, so that the reliable connection between the copper sheet and the other end of the wire clamp body is realized, the structure is firm, and the breakage of the joint of the copper sheet and the wire clamp body is prevented.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of the other end of the clip body;

FIG. 3 is a second schematic view of the other end of the clip body;

in the figure: 1. a wire clamp body; 11. a groove; 12. perforating; 13. a clamping groove; 14. a pointed cone; 2. a gland; 3. a bolt; 4. a nut; 5. a spring washer; 6. copper sheets; 60. a limit rod; 600. cross grooves.

Detailed Description

The present utility model will be further described with reference to the accompanying drawings and detailed description, wherein it is to be understood that, on the premise of no conflict, the following embodiments or technical features may be arbitrarily combined to form new embodiments.

As shown in fig. 1-3, the bolt type copper-aluminum transition equipment wire clamp comprises a wire clamp body 1, a gland 2 is arranged at one end of the wire clamp body 1, a bolt 3 is arranged on the gland 2 in a penetrating mode and the wire clamp body 1, a nut 4 is screwed on the bolt 3 in an adaptive mode, the nut 4 is matched with the bolt 3 to lock the gland 2, a spring washer 5 is arranged between the nut 4 and the gland 2, a groove 11 is arranged at the top of the other end of the wire clamp body 1, a pair of through holes 12 is arranged in the groove 11, a copper sheet 6 is arranged in the groove 11, a pair of limit rods 60 are arranged at the bottom of the copper sheet 6, the pair of limit rods 60 are respectively and correspondingly arranged in the pair of through holes 12 one by one, and the length of the limit rods 60 is larger than that of the through holes 12. After the copper sheet 6 is placed in the groove 11, the limiting rod 60 is arranged in the through hole 12 in a penetrating way, and then the copper sheet 6 and the wire clamp body 1 are preliminarily locked in a welding or hot melting way; because the length of gag lever post 60 is greater than the length of perforation 12 for after copper sheet 6 and the tank bottom laminating of recess 11, the other end of gag lever post 60 can extend to perforation 12 outside, and the mode of rethread is strikeed, makes the other end of gag lever post 60 that is the copper simultaneously take place deformation, and the sectional area increases gradually, and finally, gag lever post 60 is the type of falling T, has realized that copper sheet 6 and the reliable connection of the other end of fastener body 1, and sound construction has prevented to take place the fracture in the junction of copper sheet 6 and fastener body 1.

The inner diameter of the through hole 12 is smaller than or equal to the outer diameter of the limit rod 60. Therefore, the limit rod 60 and the through hole 12 are in interference fit, and the connection firmness of the copper sheet 6 and the wire clamp body 1 is further improved.

The bottom of the other end of the wire clamp body 1 is provided with a clamping groove 13, one end of the limiting rod is fixedly connected with the bottom of the copper sheet 6, and the other end of the limiting rod is clamped in the clamping groove 13 after being deformed. Through the setting of draw-in groove 13 for the gag lever post is receiving the deformation that strikes the production and can inject in draw-in groove 13, when improving copper sheet 6 and fastener body 1's connection fastness, the bottom parallel and level of the other end terminal surface of gag lever post and the other end of fastener body 1.

The bottom of the clamping groove 13 is provided with a plurality of pointed cones 14, and the pointed cones 14 penetrate into the other end of the limiting rod. After the other end of the limiting rod is impacted and deformed, the pointed cone 14 is extruded, the pointed cone 14 is sunk into the copper sheet 6, and the connection firmness is further improved.

The other end face of the limiting rod is also provided with a cross groove 600, and the depth of the cross groove 600 is greater than or equal to the difference between the length of the limiting rod and the length of the through hole 12. The cross groove 600 is arranged, so that after the other end of the limiting rod is impacted, the limiting rod can be split along the opening direction of the cross groove 600, and further the other end of the limiting rod is promoted to deform, so that the locking of the wire clamp body 1 is realized.

The above embodiments are only preferred embodiments of the present utility model, and the scope of the present utility model is not limited thereto, but any insubstantial changes and substitutions made by those skilled in the art on the basis of the present utility model are intended to be within the scope of the present utility model as claimed.

Claims

1. Bolt type copper aluminium transition equipment fastener, including fastener body (1), the one end of fastener body (1) is equipped with gland (2), gland (2) with wear to be equipped with bolt (3) on fastener body (1), the adaptation ground is revolved on bolt (3) and is equipped with nut (4), nut (4) with bolt (3) cooperation, realization are to the locking of gland (2), nut (4) with be equipped with spring washer (5) between gland (2), a serial communication port, the top of the other end of fastener body (1) is equipped with recess (11), be equipped with a pair of perforation (12) in recess (11), be equipped with in recess (11) copper sheet (6), the bottom of copper sheet (6) is equipped with a pair of gag lever post (60), a pair of in gag lever post (60) are located respectively and one-to-one in perforation (12), the length of gag lever post (60) is greater than perforation (12).

2. The bolted copper aluminum transition equipment clamp of claim 1, wherein: the inner diameter of the through hole (12) is smaller than or equal to the outer diameter of the limit rod (60).

3. The bolted copper aluminum transition equipment clamp of claim 1, wherein: the bottom of the other end of the wire clamp body (1) is provided with a clamping groove (13), one end of the limiting rod (60) is fixedly connected with the bottom of the copper sheet (6), and the other end of the limiting rod (60) is clamped in the clamping groove (13) after being deformed.

4. The bolted copper aluminum transition plant clamp of claim 3, wherein: the bottom of the clamping groove (13) is provided with a plurality of pointed cones (14), and the pointed cones (14) penetrate into the other end of the limiting rod (60).

5. The bolted copper aluminum transition plant clamp of claim 3, wherein: the end face of the other end of the limiting rod (60) is also provided with a cross groove (600), and the depth of the cross groove (600) is larger than or equal to the difference between the length of the limiting rod (60) and the length of the perforation (12).