CN210200418U

CN210200418U - Triple tension string

Info

Publication number: CN210200418U
Application number: CN201921321511.8U
Authority: CN
Inventors: Jinghua Zhang; 张静华; Yinchun Wang; 王银春; Shijie Zhao; 赵士杰; Yong Yu; 于勇; Yue Guan; 管月; Jun Wu; 吴俊�; Gang Xu; 徐刚
Original assignee: Jiangsu Shuanghui Power Development Co Ltd
Current assignee: Jiangsu Shuanghui Power Development Co Ltd
Priority date: 2019-08-14
Filing date: 2019-08-14
Publication date: 2020-03-27
Anticipated expiration: 2029-08-14

Abstract

The utility model provides a trigeminy strain insulator-string that atress is even, not fragile. The three-way connection type composite insulator string comprises a three-way arranged composite insulator string, connecting pieces are respectively arranged at two ends of the composite insulator string, a triangular connecting plate is further arranged between the composite insulator string and the connecting pieces, and the triangular connecting plate is connected to a connecting hanging hole of the connecting piece through two oppositely arranged right-angle hanging plates; the head end of the insulator string I is connected with the connecting hanging hole of the connecting piece at the head end sequentially through a connecting assembly III and a connecting assembly I, and the tail end of the insulator string I is connected with the connecting hanging hole of the connecting piece at the tail end sequentially through a connecting assembly III and a connecting assembly I; the mounting hanging holes are positioned at 2/3 positions of the two connecting hanging holes on the connecting piece, and the two mounting hanging holes and the inner hanging holes at the bottom edges of the two triangular connecting plates are positioned on the same straight line. The utility model discloses the angle of little even board is adjusted to the accessible for three insulator chain atress is even, thereby is not fragile.

Description

Triple tension string

Technical Field

The utility model relates to an electric power fitting technical field especially relates to a trigeminy strain insulator-string.

Background

In an electric power line, a tower for erecting electric wires usually needs two to eight diagonal steel strands for fixing, one end of each steel strand is fixed at the upper part or the middle part of the tower, and the other end of each steel strand is fixed on the ground, so that the tower is still kept upright and cannot be inclined when being subjected to external force, and the safe operation of the electric power line is guaranteed. At least one stay wire hardware fitting is required in the middle of the steel strand pulled obliquely, one end of the stay wire hardware fitting is usually connected with the foundation, the other end of the stay wire hardware fitting is connected with the steel strand, and the periphery of the telegraph pole or the iron tower can be stressed in balance by adjusting the stay wire hardware fitting. The anchor clamps of acting as go-between are used to a plurality of rows of insulator chain commonly, prevent on the one hand that the electricity at shaft tower top from being defeated to ground, cause the safety problem, and on the other hand, the arrangement of a plurality of rows, if a string insulator chain breaks, other insulator chain still can continue work, guarantee to act as go-between can not be disconnected. However, the insulator strings cannot be guaranteed to be completely consistent in length in the production process, so that some insulator strings are stressed greatly and are stressed slightly in the use process, the insulator strings stressed greatly are easy to damage and need to be replaced frequently, and the labor intensity is increased.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides a trigeminy strain insulator-string which is stressed evenly and not easy to damage.

The utility model discloses a following technical scheme realizes: the three-way connection structure comprises a three-way arranged composite insulator string, wherein connecting pieces are respectively arranged at two ends of the composite insulator string, a connection hanging hole is respectively arranged at two ends of each connecting piece, an installation hanging hole is arranged between the two connection hanging holes, a triangular connecting plate is also arranged between the composite insulator string and the connecting pieces, and the triangular connecting plate is connected to the connection hanging holes of the connecting pieces through two oppositely arranged right-angle hanging plates;

the composite insulator string comprises an insulator string I, an insulator string II and an insulator string III, the head ends of the insulator string II and the insulator string III are respectively connected with the triangular connecting plate at the head ends through a connecting assembly I, and the tail ends of the insulator string I and the insulator string II are respectively connected with the tail end triangular connecting plate through a connecting assembly II in sequence;

the head end of the insulator string I is connected with the connecting hanging hole of the connecting piece at the head end sequentially through a connecting assembly III and a connecting assembly I, and the tail end of the insulator string I is connected with the connecting hanging hole of the connecting piece at the tail end sequentially through a connecting assembly III and a connecting assembly I;

the triangular connecting plate is an isosceles triangle;

the mounting hanging holes are located at 2/3 positions of the two connecting hanging holes on the connecting piece, and the two mounting hanging holes and the inner hanging holes at the bottom edges of the two triangular connecting plates are located on the same straight line.

The first connecting assembly comprises a ball head hanging plate and a right-angle hanging plate II, the second connecting assembly comprises a socket head hanging plate and a right-angle hanging plate III, and the third connecting assembly comprises a connecting rod and a right-angle hanging plate IV.

The connecting piece is triangular.

And the head end and the tail end of the composite insulator string are respectively provided with an upper grading ring and a lower grading ring.

The upper grading ring and the lower grading ring are symmetrically arranged and have the same structure, the upper grading ring comprises an upper ring and a lower ring, the upper ring and the lower ring are horizontally arranged and connected through a plurality of connecting rods, the lower ring is fixed at the lower end of each connecting rod, the upper ring is fixed in the middle of each connecting rod, and the upper end of each connecting rod is fixedly installed on the corresponding connecting piece.

Compared with the prior art, the utility model discloses an use one big one little two pairs and link the board, make insulator string be type 2 style of calligraphy and arrange, if insulator string length is inconsistent, the angle of the little board that links is adjusted to the accessible for three insulator string atress is even, thereby is not fragile, prolongs the life of strain insulator string, reduces its change frequency, thereby reduces artifical labour. The utility model discloses the structure is light and handy, simple to operate, and later maintenance is simple.

Drawings

Fig. 1 is a schematic structural diagram of a first embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a second embodiment of the present invention;

in the figure: 1. a connecting member; 2. connecting the hanging holes; 3. mounting a hanging hole; 4. a triangular connecting plate; 5. a first right-angle hanging plate; 61. a first insulator string; 62. a second insulator string; 63. a third insulator string; 71. a ball head hanging plate; 72. a second right-angle hanging plate; 81. a socket hanging plate; 82. a third right-angle hanging plate; 91. a connecting rod; 92. c, hanging a right-angle plate IV; 101. an equalizing ring is arranged; 1011. ring fitting; 1012. a lower ring; 1013. a connecting rod; 102. a lower grading ring; 11. a fifth right-angle hanging plate; 12. a P-type hanging plate; 13. a sixth right-angle hanging plate; 14. a first alloy sleeve; 15. a second alloy sleeve; 16. a right-angle hanging plate seventh; 17. alloy sleeve III; 18. and an eighth right-angle hanging plate.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that, in the present invention, the embodiments or technical features described below may be arbitrarily combined to form a new embodiment without conflict.

As shown in fig. 1-2, the utility model discloses a compound insulator chain of trigeminy arrangement, the both ends of compound insulator chain are equipped with connecting piece 1 respectively, connecting piece 1 both ends are equipped with one respectively and connect hanging hole 2, are equipped with one between two and connect hanging hole 2 and install hanging hole 3, still be equipped with triangle link plate 4 between compound insulator chain and the connecting piece 1, triangle link plate 4 is connected on connecting hanging hole 2 of connecting piece 1 through two right angle link plates 5 that set up relatively;

the composite insulator string comprises a first insulator string 61, a second insulator string 62 and a third insulator string 63, the head ends of the second insulator string 62 and the third insulator string 63 are respectively connected with the triangular connecting plate 4 of the head ends through a first connecting component, and the tail ends of the first insulator string 61 and the second insulator string 62 are respectively connected with the triangular connecting plate 4 of the tail ends through a second connecting component in sequence;

the head end of the insulator string I61 is connected with the connecting hanging hole 2 of the connecting piece 1 at the head end sequentially through a connecting assembly III and a connecting assembly I, and the tail end of the insulator string I61 is connected with the connecting hanging hole 2 of the connecting piece 1 at the tail end sequentially through a connecting assembly III and a connecting assembly I;

the triangular connecting plate 4 is an isosceles triangle;

the mounting hanging holes 3 are positioned at 2/3 positions of the two connecting hanging holes 2 on the connecting piece 1, and the mounting hanging holes 3 and the inner hanging holes at the bottom edges of the two triangular connecting plates 4 are positioned on the same straight line. The stress balance after installation is ensured.

The first connecting assembly comprises a ball head hanging plate 71 and a second right-angle hanging plate 72, the second connecting assembly comprises a socket hanging plate 81 and a third right-angle hanging plate 82, and the third connecting assembly comprises a connecting rod 91 and a fourth right-angle hanging plate 92.

The connecting piece 1 is triangular.

And the head end and the tail end of the composite insulator string are respectively provided with an upper equalizing ring 101 and a lower equalizing ring 102.

The upper grading ring 101 and the lower grading ring are symmetrically arranged and have the same structure, the upper grading ring 101 comprises an upper ring 1011 and a lower ring 1012, the upper ring 1011 and the lower ring 1012 are horizontally arranged and connected through a plurality of connecting rods 1013, the lower ring 1012 is fixed at the lower end of the connecting rod 1013, the upper ring 1011 is fixed at the middle part of the connecting rod 1013, and the upper end of the connecting rod 1013 is fixedly arranged on the connecting piece 1.

The utility model is used at the upper end and the lower end of a tower stay wire, fig. 1 is used for the upper end of the utility model, an equalizing ring is needed to be arranged, a connecting piece 1 at the head end is connected with the tower through a right-angle hanging plate five 11 and a P-type hanging plate 12, and a connecting piece 1 at the tail end is connected with the upper end of a middle steel wire rope through a right-angle hanging plate six 13 and an alloy sleeve one 14; fig. 2 is a lower end the utility model discloses, the connecting piece 1 of head end is connected with the wire rope's of middle part lower end through eight 18 and the alloy sleeve of right angle link plate, and the connecting piece 1 of tail end is connected with the wire rope's of lower part upper end through seven 16 and the alloy sleeve of right angle link plate three 17. The utility model discloses when the equipment, if the discovery insulator chain length differs, the continuous board of tilting triangle 4 then fastens for each insulator chain atress is the same, difficult fracture.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are all within the protection scope of the present invention.

Claims

1. Triple strain insulator string, including the compound insulator string that the trigeminy was arranged, the both ends of compound insulator string are equipped with the connecting piece respectively, the connecting piece both ends are equipped with one respectively and connect the hanging hole, are equipped with an installation hanging hole, its characterized in that between two connection hanging holes: a triangular connecting plate is further arranged between the composite insulator string and the connecting piece, and the triangular connecting plate is connected to a connecting hanging hole of the connecting piece through two oppositely arranged right-angle hanging plates;

the triangular connecting plate is an isosceles triangle;

2. The triple tension string according to claim 1, wherein: the first connecting assembly comprises a ball head hanging plate and a right-angle hanging plate II, the second connecting assembly comprises a socket head hanging plate and a right-angle hanging plate III, and the third connecting assembly comprises a connecting rod and a right-angle hanging plate IV.

3. The triple tension string according to claim 1, wherein: the connecting piece is triangular.

4. The triple tension string according to claim 1, wherein: and the head end and the tail end of the composite insulator string are respectively provided with an upper grading ring and a lower grading ring.

5. The triple tension string according to claim 4, wherein: the upper grading ring and the lower grading ring are symmetrically arranged and have the same structure, the upper grading ring comprises an upper ring and a lower ring, the upper ring and the lower ring are horizontally arranged and connected through a plurality of connecting rods, the lower ring is fixed at the lower end of each connecting rod, the upper ring is fixed in the middle of each connecting rod, and the upper end of each connecting rod is fixedly installed on the corresponding connecting piece.