CN211907110U

CN211907110U - Insulator duplex single hanging point strain insulator-string structure

Info

Publication number: CN211907110U
Application number: CN202020899897.7U
Authority: CN
Inventors: 李莉; 徐再传; 姚晴晴; 郝利娜; 尹磊
Original assignee: Anhui Ocean Power Engineering Co ltd
Current assignee: Anhui Ocean Power Engineering Co ltd
Priority date: 2020-05-23
Filing date: 2020-05-23
Publication date: 2020-11-10
Anticipated expiration: 2030-05-23

Abstract

The utility model discloses an insulator duplex single hanging point strain insulator string structure, which relates to the technical field of insulators, and the technical scheme is characterized by comprising two insulator strings, a first yoke plate and a second yoke plate; one end of each insulator string is fixed with a bulb hanging ring, one end of each bulb hanging ring is hinged with a right-angle hanging plate, one end of each insulator string is rotatably provided with a first U-shaped hanging ring, and a first connecting device is arranged between each right-angle hanging plate and the first connecting plate; a second connecting device is arranged between the first U-shaped hanging ring and the second gusset plate; the first connecting device and the second connecting device have the same structure; the first connecting device comprises a connecting piece, a circular through hole arranged on one side, close to the first yoke plate, of the right-angle hanging plate, a rotating ring rotatably arranged in the circular through hole and two groups of inserting mechanisms arranged between the connecting piece and the rotating ring. The utility model provides a be not convenient for carry out the problem of changing to insulator chain, reached the effect of being convenient for change insulator chain.

Description

Insulator duplex single hanging point strain insulator-string structure

Technical Field

The utility model relates to an insulator technical field, more specifically the theory that says so, it relates to a single string of some strain insulator-string structure of insulator pair.

Background

Presently, an insulator string refers to an assembly of two or more insulator elements combined together to flexibly suspend a wire.

In the prior art, reference may be made to a chinese patent invention with an authorization publication number of CN102810364B, which discloses a single-hanging-point double-wire-clamp duplex V-shaped porcelain insulator string for a ± 500kV same-tower double-circuit line, and the string comprises two groups of V-shaped suspension insulator strings, one end of each group of suspension insulator strings is connected with a link plate through a ball-head hanging ring, a right-angle hanging plate in sequence, and the link plate is connected with the right-angle hanging plate, a DB-type adjusting plate, a U-shaped hanging ring and an EB hanging-point hardware fitting in sequence; the other end is connected with the same LF connecting plate through a socket hanging plate, and each LF connecting plate is respectively connected with two parallel four-split suspension connecting plates through two right-angle hanging plates. The stability requirement of the power transmission line is met by adopting a single hanging point connection mode.

However, when the insulator string needs to be repaired and replaced, the insulator string is not convenient to mount and dismount due to the hinged connection between the insulator string and the connecting plate.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide an insulator pair list string point strain insulator string structure, it has reached the effect of being convenient for install insulator string through setting up detachable connecting device.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

an insulator duplex single-hanging-point strain insulator string structure comprises two insulator strings, a first connecting plate and a second connecting plate, wherein the first connecting plate is hinged with one ends of the two insulator strings respectively, and the second connecting plate is hinged with one ends, far away from the first connecting plate, of the two insulator strings respectively; a ball head hanging ring is fixed at one end, close to the first connecting plate, of each insulator string, a right-angle hanging plate is hinged at one end, far away from the insulator string, of each ball head hanging ring, a first U-shaped hanging ring is rotatably installed at one end, close to the first connecting plate, of each insulator string, and a first connecting device used for connecting the right-angle hanging plates and the first connecting plates is arranged between the right-angle hanging plates and the first connecting plates; a second connecting device used for connecting the first U-shaped hanging ring and the second link plate is arranged between the first U-shaped hanging ring and the second link plate; the first connecting device and the second connecting device have the same structure; the first connecting device comprises a connecting piece fixed on one side of the first yoke plate close to the right-angle hanging plate, a circular through hole arranged on one side of the right-angle hanging plate close to the first yoke plate, a rotating ring rotatably arranged in the circular through hole and two groups of inserting mechanisms arranged between the connecting piece and the rotating ring.

Through adopting above-mentioned technical scheme, the swivel becket passes through grafting mechanism and connecting piece fixed connection back, because circular through-hole rotates with the swivel becket to be connected to make right angle pendant articulated with the connecting piece, through setting up grafting mechanism, the swivel becket of being convenient for rotates with the connecting piece to be connected, thereby the insulator chain of being convenient for can dismantle with the yoke plate and be connected.

The present invention may be further configured in a preferred embodiment as: each group of the plugging mechanisms comprises a strip-shaped sliding groove arranged on the inner peripheral surface of the rotating ring, a plug connector arranged in the strip-shaped sliding groove in a sliding manner along the radial direction of the rotating ring, and a plugging groove arranged on the outer peripheral surface of the connecting part and used for plugging with the plug connector; a first spring is fixed on one side of the plug connector, which is far away from the connecting piece, and one end of the first spring, which is far away from the plug connector, is fixedly connected with one side of the strip-shaped chute, which is far away from the connecting piece; and a pressing component for driving the plug connector to move towards one side far away from the connecting piece is arranged between the two plug connectors.

Through adopting above-mentioned technical scheme, circular through-hole and connecting piece are pegged graft the back, through supporting pressing the subassembly to drive two plug connectors respectively and remove to the bar spout is inboard, and first spring is in compression state this moment to apply to the plug connector to being close to the elasticity of connecting piece one side, thereby drive plug connector and inserting groove through first spring and peg graft, and then fixed connection rotating ring and connecting piece. Through setting up the grafting subassembly, be convenient for install insulator chain on the yoke plate.

The present invention may be further configured in a preferred embodiment as: the bottom of the plug connector is fixedly provided with a first dovetail block, the bottom surface of the strip-shaped sliding groove is provided with a first dovetail groove, and the first dovetail block is arranged in the first dovetail groove in a sliding mode along the radial direction of the rotating ring.

Through adopting above-mentioned technical scheme, first dovetail provides the guide effect for first forked tail piece, reduces the possibility of plug connector and bar spout separation.

The present invention may be further configured in a preferred embodiment as: the pressing component comprises two first inclined planes which are respectively arranged on the opposite inner sides of the two plug connectors and are close to one side of the connecting piece.

Through adopting above-mentioned technical scheme, the plug connector with when through first inclined plane and connecting piece butt, receive to support the pressure effect and can remove to keeping away from connecting piece one side respectively to the swivel becket of being convenient for cup joints with the connecting piece.

The present invention may be further configured in a preferred embodiment as: one side of the second gusset plate, which is far away from the right-angle hanging plate, is provided with two circular sliding grooves; a pressing piece is arranged in each circular sliding groove in a sliding manner along the axial direction of the connecting piece; one side of the pressing piece, which is close to the right-angle hanging plate, is fixed with a circular truncated cone-shaped bulge which is used for being abutted against the first inclined plane.

Through adopting above-mentioned technical scheme, the pressing piece supports through round platform shape arch and presses the plug connector to promote the plug connector to keeping away from connecting piece one side and remove, thereby make plug connector and inserting groove separation, and then make the swivel becket break away from the connecting piece, thereby realize the dismantlement to insulator chain.

The present invention may be further configured in a preferred embodiment as: one side of the circular truncated cone-shaped bulge, which is close to the right-angle hanging plate, is fixed with a second spring, one end of the second spring, which is close to the right-angle hanging plate, is fixedly connected with one side of the circular chute, which is close to the right-angle hanging plate.

Through adopting above-mentioned technical scheme, when pressing the pressing piece, the second spring is in compression state, and the second spring is applyed to the pressing piece and is being kept away from the elasticity of right angle link plate one side, is convenient for reset to keeping away from right angle link plate one side through second spring drive pressing piece.

The present invention may be further configured in a preferred embodiment as: the outer peripheral surface of the pressing piece is fixed with two second dovetail blocks, the inner peripheral surface of the circular sliding groove is provided with two second dovetail grooves, and each second dovetail block is arranged in the second dovetail groove in a sliding mode along the axial direction of the circular sliding groove.

Through adopting above-mentioned technical scheme, the second dovetail provides the guide effect for the second forked tail piece, reduces the possibility that the pressing piece breaks away from circular spout.

The present invention may be further configured in a preferred embodiment as: the inner peripheral surface of the circular through hole is provided with an annular dovetail groove, the outer peripheral surface of the rotating ring is fixedly provided with a dovetail ring, and the dovetail ring is rotatably arranged in the annular dovetail groove along the circumferential direction of the rotating ring.

Through adopting above-mentioned technical scheme, annular dovetail provides the guide effect for the forked tail ring, reduces the possibility that the rotating ring breaks away from circular through-hole.

To sum up, the utility model discloses compare and have following beneficial effect in prior art:

1. by arranging the inserting assembly, the rotating ring is fixedly connected with the connecting piece in the process of sleeving the rotating ring on the peripheral side of the connecting piece, so that the insulator string is conveniently arranged on the connecting plate;

2. through setting up the pressing piece, press the pressing piece and can make plug connector and inserting groove separation, and then make the swivel becket break away from the connecting piece to the realization is to insulator chain's dismantlement.

Drawings

Fig. 1 is a front view of an embodiment of the present invention;

FIG. 2 is a cross-sectional view of the first connecting means highlighted in the present invention;

fig. 3 is an enlarged schematic view of a point a in fig. 2.

In the figure: 1. an insulator string; 11. a first yoke plate; 12. a second yoke plate; 13. a ball head hanging ring; 14. a right-angle hanging plate; 15. a first U-shaped suspension loop; 16. a second U-shaped suspension loop; 17. an extension ring; 18. a third U-shaped suspension loop; 19. strain clamp; 2. a first connecting means; 21. a second connecting means; 22. a connecting member; 23. a circular through hole; 24. a rotating ring; 25. an annular dovetail groove; 26. a dovetail ring; 3. a plug-in mechanism; 31. a strip-shaped chute; 32. a plug-in unit; 33. inserting grooves; 34. a first spring; 35. a first inclined plane; 36. a second inclined plane; 4. a pressing member; 41. a circular chute; 42. a truncated cone-shaped protrusion; 43. a second spring; 44. a second dovetail block; 45. and a second dovetail groove.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example (b): an insulator duplex single hanging point strain insulator string structure is shown in fig. 1 and comprises two insulator strings 1, a first connecting plate 11 and a second connecting plate 12, wherein the first connecting plate 11 is hinged to one ends of the two insulator strings 1 respectively, and the second connecting plate 12 is hinged to one ends, far away from the first connecting plate 11, of the two insulator strings 1 respectively. Each insulator string 1 is close to one end of the first connecting plate 11 and is fixedly provided with a ball head hanging ring 13, one end, far away from the insulator string 1, of the ball head hanging ring 13 is hinged with a right-angle hanging plate 14, and the right-angle hanging plate 14 is hinged with one side of the first connecting plate 11. One end of each insulator string 1, which is close to the first connecting plate 11, is rotatably provided with a first U-shaped hanging ring 15, and the first U-shaped hanging ring 15 is hinged with one side of the second connecting plate 12. A first connecting device 2 for connecting the right-angle hanging plate 14 and the first connecting plate 11 is arranged between each right-angle hanging plate 14 and the first connecting plate 11, and a second connecting device 21 for connecting the first U-shaped hanging ring 15 and the second connecting plate 12 is arranged between the first U-shaped hanging ring 15 and the second connecting plate 12; the first connecting means 2 is of the same construction as the second connecting means 21. One side of the first yoke plate 11, which is far away from the second yoke plate 12, is hinged with a second U-shaped hanging ring 16, one end of the second U-shaped hanging ring 16, which is far away from the first yoke plate 11, is hinged with an extension ring 17, and one end of the extension ring 17, which is far away from the second U-shaped hanging ring 16, is hinged with a third U-shaped hanging ring 18. One side of the second yoke plate 12, which is far away from the first yoke plate 11, is hinged with a third U-shaped suspension loop 18, and one end of the third U-shaped suspension loop 18, which is far away from the second yoke plate 12, is hinged with a strain clamp 19.

As shown in fig. 2 and 3, the first connecting device 2 includes a connecting member 22 fixed on one side of the first link plate 11 close to the right-angle hanging plate 14, a circular through hole 23 opened on one side of the right-angle hanging plate 14 close to the first link plate 11, a rotating ring 24 rotatably installed in the circular through hole 23, and two sets of plugging mechanisms 3 arranged between the connecting member 22 and the rotating ring 24. An annular dovetail groove 25 is formed in the inner peripheral surface of the circular through hole 23, a dovetail ring 26 is fixed to the outer peripheral surface of the rotating ring 24, and the dovetail ring 26 is rotatably mounted in the annular dovetail groove 25 along the circumferential direction of the rotating ring 24. Each group of plugging mechanisms 3 comprises a strip-shaped sliding groove 31 arranged on the inner peripheral surface of the rotating ring 24, a plug connector 32 arranged in the strip-shaped sliding groove 31 in a sliding manner along the radial direction of the rotating ring 24, and a plugging groove 33 arranged on the outer peripheral surface of the connecting piece 22 and used for plugging with the plug connector 32. The first spring 34 is fixed on one side of the plug connector 32 far away from the connecting piece 22, and one end of the first spring 34 far away from the plug connector 32 is fixedly connected with one side of the strip-shaped chute 31 far away from the connecting piece 22. The bottom of the plug connector 32 is fixed with a first dovetail block, the bottom surface of the strip-shaped chute 31 is provided with a first dovetail groove, and the first dovetail block is arranged in the first dovetail groove in a sliding manner along the radial direction of the rotating ring 24. A first inclined plane 35 is arranged on one side of each plug connector 32 close to the connecting piece 22; the side of each plug 32 away from the connecting element 22 is provided with a second inclined surface 36. After the right-angle hanging plate 14 is spliced with the connecting piece 22 through the circular through hole 23, the two splicing pieces 32 are respectively butted with the connecting piece 22 through the first inclined plane 35; the two plug connectors 32 are pressed to move towards the inner sides of the strip-shaped sliding grooves 31 respectively, at the moment, the first springs 34 are in a compressed state, and elastic force close to one side of the connecting piece 22 is applied to the plug connectors 32, so that the plug connectors 32 are driven to be plugged with the plugging grooves 33 through the first springs 34, and the rotating ring 24 and the connecting piece 22 are fixedly connected.

As shown in fig. 3, two circular sliding grooves 41 respectively communicating with the strip-shaped sliding grooves 31 are formed on one side of the second yoke plate 12 away from the right-angle hanging plate 14. The pressing piece 4 is arranged inside each circular sliding groove 41 in a sliding manner along the axial direction of the connecting piece 22. A truncated cone-shaped protrusion 42 for abutting against the first inclined surface 35 is fixed to the pressing piece 4 on the side close to the right-angle hanging plate 14. One side of the circular truncated cone-shaped bulge 42, which is close to the right-angle hanging plate 14, is fixed with a second spring 43, and one end of the second spring 43, which is close to the right-angle hanging plate 14, is fixedly connected with one side of the circular sliding groove 41, which is close to the right-angle hanging plate 14. Two second dovetail blocks 44 are fixed on the outer peripheral surface of the pressing piece 4, two second dovetail grooves 45 are formed in the inner peripheral surface of the circular sliding groove 41, and each second dovetail block 44 is arranged in the second dovetail groove 45 in a sliding mode along the axial direction of the circular sliding groove 41. When the right-angle hanging plate 14 and the connecting piece 22 need to be separated, the pressing piece 4 is pressed towards one side close to the right-angle hanging plate 14, the pressing piece 4 is abutted against the plug connector 32 through the circular truncated cone-shaped protrusion 42, and the plug connector 32 moves towards one side far away from the pressing piece 4, so that the plug connector 32 is separated from the plug connecting groove 33.

The working principle of the embodiment is as follows:

since the first connecting means 2 and the second connecting means 21 have the same result, taking the first connecting means 2 as an example: after the right-angle hanging plate 14 is spliced with the connecting piece 22 through the circular through hole 23, the two splicing pieces 32 are respectively butted with the connecting piece 22 through the first inclined plane 35; the two plug connectors 32 are pressed to move towards the inner sides of the strip-shaped sliding grooves 31 respectively, at the moment, the first springs 34 are in a compressed state, and elastic force close to one side of the connecting piece 22 is applied to the plug connectors 32, so that the plug connectors 32 are driven to be plugged with the plugging grooves 33 through the first springs 34, and the rotating ring 24 and the connecting piece 22 are fixedly connected.

When the right-angle hanging plate 14 and the connecting piece 22 need to be separated, the pressing piece 4 is pressed towards one side close to the right-angle hanging plate 14, the pressing piece 4 is abutted against the plug connector 32 through the circular truncated cone-shaped protrusion 42, and the plug connector 32 moves towards one side far away from the pressing piece 4, so that the plug connector 32 is separated from the plug connecting groove 33.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. An insulator duplex single-hanging-point strain insulator string structure comprises two insulator strings (1), a first connecting plate (11) and a second connecting plate (12), wherein the first connecting plate (11) is hinged with one ends of the two insulator strings (1) respectively, and the second connecting plate (12) is hinged with one ends, far away from the first connecting plate (11), of the two insulator strings (1) respectively; every insulator chain (1) is close to first yoke plate (11) one end and all is fixed with bulb link (13), insulator chain (1) one end is kept away from in bulb link (13) and all articulates there are right angle link plate (14), every first yoke plate (11) one end that insulator chain (1) is close to all rotates and installs first U-shaped link (15), its characterized in that: a first connecting device (2) for connecting the right-angle hanging plate (14) and the first yoke plate (11) is arranged between the right-angle hanging plate (14) and the first yoke plate (11); a second connecting device (21) used for connecting the first U-shaped hanging ring (15) and the second yoke plate (12) is arranged between the first U-shaped hanging ring (15) and the second yoke plate (12); the first connecting device (2) and the second connecting device (21) are identical in structure; first connecting device (2) including be fixed in first yoke plate (11) be close to connecting piece (22) of right angle link plate (14) one side, set up in circular through-hole (23) that right angle link plate (14) are close to first yoke plate (11) one side, rotate install in swivel becket (24) in circular through-hole (23) and set up in two sets of grafting mechanisms (3) between connecting piece (22) and swivel becket (24).

2. The insulator duplex single hanging point strain insulator-string structure of claim 1, wherein: each group of the plugging mechanisms (3) comprises a strip-shaped sliding groove (31) arranged on the inner peripheral surface of the rotating ring (24), a plug connector (32) arranged in the strip-shaped sliding groove (31) in a sliding manner along the radial direction of the rotating ring (24), and a plugging groove (33) arranged on the outer peripheral surface of the connecting piece (22) and used for being plugged with the plug connector (32); a first spring (34) is fixed on one side, away from the connecting piece (22), of the plug connector (32), and one end, away from the plug connector (32), of the first spring (34) is fixedly connected with one side, away from the connecting piece (22), of the strip-shaped sliding groove (31); and a pressing component for driving the plug connector (32) to move to one side far away from the connecting piece (22) is arranged between the two plug connectors (32).

3. The insulator duplex single hanging point strain insulator-string structure of claim 2, wherein: the bottom of the plug connector (32) is fixed with a first dovetail block, a first dovetail groove is formed in the bottom surface of the strip-shaped sliding groove (31), and the first dovetail block is arranged in the first dovetail groove in a sliding mode along the radial direction of the rotating ring (24).

4. The insulator duplex single hanging point strain insulator-string structure of claim 2, wherein: the pressing component comprises two first inclined planes (35) which are respectively arranged on the opposite inner sides of the two plug connectors (32) and are close to one side of the connecting piece (22).

5. The insulator duplex single hanging point strain insulator-string structure of claim 2, wherein: one side of the second yoke plate (12) far away from the right-angle hanging plate (14) is provided with two circular sliding grooves (41); a pressing piece (4) is arranged in each circular sliding groove (41) in a sliding manner along the axial direction of the connecting piece (22); one side of the pressing piece (4) close to the right-angle hanging plate (14) is fixed with a circular truncated cone-shaped bulge (42) which is used for being abutted against the first inclined surface (35).

6. The insulator duplex single hanging point strain insulator-string structure of claim 5, wherein: one side of the circular truncated cone-shaped bulge (42) close to the right-angle hanging plate (14) is fixed with a second spring (43), one end of the second spring (43) close to the right-angle hanging plate (14) is fixedly connected with one side of the circular sliding groove (41) close to the right-angle hanging plate (14).

7. The insulator duplex single hanging point strain insulator-string structure of claim 5, wherein: two second dovetail blocks (44) are fixed on the outer peripheral surface of the pressing piece (4), two second dovetail grooves (45) are formed in the inner peripheral surface of the circular sliding groove (41), and each second dovetail block (44) is arranged in the second dovetail groove (45) in a sliding mode along the axial direction of the circular sliding groove (41).

8. The insulator duplex single hanging point strain insulator-string structure of claim 1, wherein: an annular dovetail groove (25) is formed in the inner peripheral surface of the circular through hole (23), a dovetail ring (26) is fixed to the outer peripheral surface of the rotating ring (24), and the dovetail ring (26) is rotatably mounted in the annular dovetail groove (25) along the circumferential direction of the rotating ring (24).