CN211742892U

CN211742892U - Transformer provided with anti-loosening connector lug

Info

Publication number: CN211742892U
Application number: CN202020098978.7U
Authority: CN
Inventors: 袁永军
Original assignee: Zhejiang Dayou Industrial Co ltd Power Bearing Branch
Current assignee: Zhejiang Dayou Industrial Co ltd Power Bearing Branch
Priority date: 2020-01-17
Filing date: 2020-01-17
Publication date: 2020-10-23
Anticipated expiration: 2030-01-17

Abstract

The utility model relates to a transformer with a wiring looseness-prevention connector, which comprises a transformer body, wherein the transformer body is provided with a connector, the connector comprises a wiring thread joint and a line pressing nut in threaded connection with the wiring thread joint, the upper end of the wiring thread joint is provided with a thread column, the thread column is in threaded connection with a looseness-stopping nut, the diameter of the thread column is smaller than that of the wiring thread joint, the thread direction of the thread column is opposite to that of the wiring thread joint, and the wiring thread joint is sleeved with a transmission sleeve; when the line pressing nut is pressed on the line head, one end of the transmission sleeve is abutted with the line pressing nut, the other end of the transmission sleeve is abutted with the loosening-stopping nut, and the wiring threaded head and the line pressing nut are of a conductive structure. The utility model provides a be difficult to produce not hard up transformer of a loose type connector lug of seting up defences of phenomenon has solved current transformer wiring department and has produced not hard up problem easily.

Description

Transformer provided with anti-loosening connector lug

Technical Field

The utility model relates to a transformer especially relates to a transformer of loose type connector lug of setting up defences.

Background

A transformer is a device that changes an alternating voltage using the principle of electromagnetic induction, and main components are a primary coil, a secondary coil, and an iron core (magnetic core). The main functions are voltage transformation, current transformation, impedance transformation, isolation, voltage stabilization (magnetic saturation transformer) and the like. The transformer can be divided into a power transformer and a special transformer (an electric furnace transformer, a rectification transformer, a power frequency test transformer, a voltage regulator, a mining transformer, an audio transformer, a medium-frequency transformer, a high-frequency transformer, an impact transformer, an instrument transformer, an electronic transformer, a reactor, a mutual inductor and the like) according to the application. The circuit symbol is usually T as the beginning of the number. Set up the connector lug on the transformer and come the introduction and draw forth the power, for opening the wiring hole on the transformer when current transformer carries out the wiring, open the screw thread through-hole on the pore wall in wiring hole, thereby it compresses tightly the realization on the power cord to insert the power cord in the wiring hole, then through the bolt of threaded connection in the screw thread through-hole to realize the fixed to the power cord. The existing wiring mode is improper, and the number of turns of the thread is small due to the fact that the thickness of the hole wall of the wiring hole is thin, so that the number of turns of the thread is small, the connection strength of the wiring position is low, and the loosening phenomenon is easy to generate.

SUMMERY OF THE UTILITY MODEL

The utility model provides a be difficult to produce not hard up transformer of a loose type connector lug of seting up defences of phenomenon has solved current transformer wiring department and has produced not hard up problem easily.

The technical problem is solved by the following technical scheme: a transformer provided with a loose-proof connector lug comprises a transformer body, wherein the transformer body is provided with the connector lug, and the loose-proof connector lug is characterized in that the connector lug comprises a wiring threaded head and a line pressing nut in threaded connection with the wiring threaded head, the upper end of the wiring threaded head is provided with a threaded column, the threaded column is in threaded connection with a loose-proof nut, the diameter of the threaded column is smaller than that of the wiring threaded head, the thread direction of the threaded column is opposite to that of the wiring threaded head, and the wiring threaded head is sleeved with a transmission sleeve; when the line pressing nut is pressed on the line head, one end of the transmission sleeve is abutted with the line pressing nut, the other end of the transmission sleeve is abutted with the loosening-stopping nut, and the wiring threaded head and the line pressing nut are of a conductive structure. When the wire connecting device is used, the wire is pressed by the compression nut to be connected. This technical scheme, when gland nut produced not hard up trend formula and rotates and produce the displacement, thereby by the cooperation of driving sleeve stop loose nut restrict can not the translation so that rotate can not produce. Even if the compression nut drives the transmission sleeve to rotate together and then drives the loosening-stopping nut to rotate, the rotation in the loosening direction of the compression nut is the rotation in the locking direction of the compression nut, and at the moment, the compression nut cannot be loosened.

Preferably, the lower end of the connection screw head is provided with a large-diameter section, the upper end surface of the large-diameter section forms a support table for supporting the electric wire, and the large-diameter section protrudes out of the transformer body. Can carry out more convenient and reliable fixed to the direction.

Preferably, the anti-loosening nut and the threaded column are both of an insulating structure. The safety is better.

Preferably, the end face of the end, facing one end of the transmission sleeve, of the line pressing nut is provided with a line pressing nut part mirror surface layer, the end face, facing one end of the transmission sleeve, of the loosening-stopping nut is provided with a loosening-stopping nut part mirror surface layer, one end of the transmission sleeve is provided with a first mirror surface layer which is connected with the line pressing nut part mirror surface layer in an abutting mode, and the other end of the transmission sleeve is provided with a second mirror surface layer which is connected with the loosening-stopping nut part mirror surface layer in an abutting mode. The driving sleeve can be rotated together with different nuts. The wire pressing nut is more reliably pressed on the guide when the wiring is ensured.

Preferably, the loosening-stopping nut, the transmission sleeve and the pressing line nut are sequentially distributed from top to bottom, a chamfer surface is arranged between the lower end, facing the inner circumferential surface of the transmission sleeve, of the transmission sleeve and the lower end surface of the lower transmission sleeve, an oil storage cavity is formed between the chamfer surface and the wiring threaded head, and lubricating oil is stored in the oil storage cavity. Can prevent the reliability of wiring screw thread head corrosion in order to guarantee to connect, can also make laborsaving when pulling down the line ball nut.

The utility model has the advantages of that: the connecting strength is good, and the loosening phenomenon is not easy to generate. The structure is novel.

Drawings

Fig. 1 is a schematic view of the present invention.

In the figure: the transformer comprises a transformer body 1, a wiring threaded head 2, a line pressing nut 3, a large-diameter section 4, a supporting table 5, a threaded column 6, a loosening-stopping nut 7, a transmission sleeve 8, a chamfered surface 9, a lead 10 and a lug plate 11.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and examples.

Referring to fig. 1, a transformer with a loose-proof connector lug comprises a transformer body 1. The transformer body is provided with a connector lug. The connector lug comprises a connector lug threaded head 2 and a line ball nut 3 which is in threaded connection with the connector lug threaded head. The wiring threaded head and the line pressing nut are of conductive structures. The lower end of the connecting thread head is provided with a large-diameter section 4. The upper end surface of the large-diameter section constitutes a support table 5 that supports the electric wire. The large diameter section protrudes out of the transformer body. The upper end of the connecting thread head is provided with a thread column 6. The threaded column is an insulating structure. The thread column is connected with a stop nut 7 through a thread. The anti-loosening nut is of an insulating structure. The diameter of the threaded post is less than the diameter of the terminal thread head. The thread direction of the thread column is opposite to that of the thread of the connecting thread head. The connecting thread head is sleeved with a transmission sleeve 8. The loosening-preventing nut, the transmission sleeve and the line pressing nut are sequentially distributed from top to bottom, and a chamfer surface 9 is arranged between the lower end, facing the inner peripheral surface of the transmission sleeve, of the transmission sleeve and the lower end surface of the lower transmission sleeve. The end surface, namely the upper end surface, of one end of the pressing line nut, which faces the transmission sleeve, is provided with a mirror surface layer of the pressing line nut part. The end surface of one end of the loosening-stopping nut facing the transmission, namely the lower end surface, is provided with a mirror surface layer of the loosening-stopping nut. The lower extreme of driving sleeve is equipped with first mirror layer, and the upper end is equipped with the second mirror layer.

In use, a lug 11 is connected to the lead 10. Be equipped with the wiring hole on the terminal block, establish on the wiring thread head through the wiring hole cover, then rotate line ball nut 3 thereby compress tightly the direction and fix, overlap again and establish the transmission cover, then the locking ends the pine nut, the nut cooperation is ended the pine nut and is held the transmission cover for first mirror layer is in the same place with gland nut not mirror layer butt, second mirror layer is in the same place with ending pine nut mirror layer butt. At the moment, an oil storage cavity is formed between the chamfer surface and the wiring threaded head, and lubricating oil is stored in the oil storage cavity.

Claims

1. A transformer provided with a loose-proof connector lug comprises a transformer body, wherein the transformer body is provided with the connector lug, and the loose-proof connector lug is characterized in that the connector lug comprises a wiring threaded head and a line pressing nut in threaded connection with the wiring threaded head, the upper end of the wiring threaded head is provided with a threaded column, the threaded column is in threaded connection with a loose-proof nut, the diameter of the threaded column is smaller than that of the wiring threaded head, the thread direction of the threaded column is opposite to that of the wiring threaded head, and the wiring threaded head is sleeved with a transmission sleeve; when the line pressing nut is pressed on the line head, one end of the transmission sleeve is abutted with the line pressing nut, the other end of the transmission sleeve is abutted with the loosening-stopping nut, and the wiring threaded head and the line pressing nut are of a conductive structure.

2. The transformer with the locking type connector lug as claimed in claim 1, wherein the lower end of the connector screw lug is provided with a large diameter section, the upper end surface of the large diameter section forms a support platform for supporting the electric wire, and the large diameter section protrudes out of the transformer body.

3. The transformer with the fortifying loose type connector lug as claimed in claim 1 or 2, wherein the loosening-preventing nut and the threaded column are both of an insulating structure.

4. The transformer with the locking type connector lug as claimed in claim 1 or 2, wherein a line nut portion mirror layer is provided on an end surface of the line nut facing one end of the driving sleeve, a locking nut portion mirror layer is provided on an end surface of the locking nut facing one end of the driving sleeve, a first mirror layer abutting against the line nut portion mirror layer is provided at one end of the driving sleeve, and a second mirror layer abutting against the locking nut portion mirror layer is provided at the other end of the driving sleeve.

5. The transformer with the anti-loosening connector lug according to claim 1 or 2, wherein the anti-loosening nut, the transmission sleeve and the line pressing nut are sequentially distributed from top to bottom, a chamfer surface is arranged between the lower end, facing the inner circumferential surface of the transmission sleeve, of the transmission sleeve and the lower end surface of the lower transmission sleeve, an oil storage cavity is formed between the chamfer surface and the connector lug, and lubricating oil is stored in the oil storage cavity.