CN220569483U - Composite cross arm insulator - Google Patents

Abstract

The utility model provides a composite cross arm insulator, which comprises an insulator and a connecting seat, wherein the connecting seat is hinged to the top of the insulator, the connecting seat comprises a base and a U-shaped frame, the bottom of the U-shaped frame is connected with the base through a pivot, the top of the U-shaped frame is rotationally connected with a clamping device, the clamping device consists of an upper clamping jaw plate and a lower clamping jaw plate which are identical in size structure, one sides of the upper clamping jaw plate and the lower clamping jaw plate are hinged, the other sides of the upper clamping jaw plate are connected through bolts A, the upper clamping jaw plate is of an arc-shaped structure, a row of threaded holes pointing to arc centers are respectively formed in the front end and the rear end of the top of the upper clamping jaw plate, bolts B are arranged in threaded fit in the threaded holes, the connecting seat of the device can not break the insulator due to torque force generated by deflection of a cable direction, the cable can not be damaged, and the cable with any size can be clamped through the adjusting bolts B.

Description

Composite cross arm insulator

Technical Field

The utility model relates to the technical field of power grid laying, in particular to a composite cross arm insulator.

Background

The insulator is a power equipment used for bearing mechanical load and insulating effect in a power transmission and distribution line of a power grid, is generally applied to power facilities such as transformers with high voltage and telegraph poles, and can fully solve the problem that high-energy electrons jump from a wire to a conductor to generate sparks.

According to the composite cross arm insulator disclosed in Chinese patent CN202010441621.9, when an electric wire is supported by an insulating porcelain piece, a clamping device, a limiting device and a connecting device, the problem that the electric wire is easy to shake due to the fact that the clamping function of the electric wire cannot be achieved when the traditional composite cross arm insulator supports the electric wire is solved, so that the stability of the support is reduced, meanwhile, the electric wire with different sizes cannot be clamped, the applicability of the composite cross arm insulator is reduced, the contact area between the composite cross arm insulator and the electric wire cannot be increased along with the increase of the size of the electric wire, the phenomenon that the clamping is unstable due to the fact that the contact area between the composite cross arm insulator and the electric wire is too small is easily caused, and the stability of the support is reduced is solved.

This compound cross arm insulator is when installing the cable, and clamping device's fixed position can not adjust clamping device's angle according to the axial direction of cable when fixed cable, when the cable with clamping device's position deflection, with clamping device junction produce torsional force, lead to bad installation, the torsional force of production also causes the damage to the cable and leads to clamping device and insulator's junction fracture easily yet, still exists simultaneously because clamping jaw size is too big and can't centre gripping small-size cable's problem.

Disclosure of Invention

In order to make up for the defects, the utility model provides a composite cross arm insulator.

The utility model is realized in the following way:

the utility model provides a compound cross arm insulator, includes insulator and connecting seat, the connecting seat includes base and U-shaped frame, the base articulates the top of insulator, the bottom of U-shaped frame with the base passes through pivot to be connected, the opening rotation of U-shaped frame is connected with clamping device, clamping device comprises last clamping jaw board and lower clamping jaw board that the size structure is identical, go up clamping jaw board with one side of lower clamping jaw board articulates, and the opposite side passes through bolt A and connects, go up clamping jaw board is arc structure, go up the surface of clamping jaw board seted up a plurality of central axis with go up the screw hole that clamping jaw board arc center coincides, screw hole screw-thread fit is connected with bolt B.

In one embodiment of the utility model, a rubber pad is arranged on the end face of one end of the bolt B, which points to the arc center, a rubber plate which is attached to the arc surface is arranged at the bottom of the upper clamping claw plate, a through hole is arranged at the corresponding threaded hole of the rubber plate, and the size of the through hole is matched with that of the rubber pad.

In one embodiment of the utility model, two connecting rods are symmetrically and fixedly arranged on the surface of the lower clamping claw plate, and the two connecting rods are rotatably connected with the U-shaped frame through a rotating shaft.

In one embodiment of the utility model, the bottom of the insulator is provided with a support.

The beneficial effects of the utility model are as follows: this compound cross arm insulator device comprises clamping device, rotating device and insulator, compares with current compound cross arm insulator, and newly-increased rotating device can not make the device break because of cable direction deflection produces torque force and makes the insulator fracture when installation and centre gripping through pivot and pivot adjustment clamping device's direction, can also solve the problem that can't centre gripping tiny cable because of the clamping jaw is too big through adjusting bolt B on the clamping jaw simultaneously.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of a composite cross arm insulator according to an embodiment of the present utility model;

fig. 2 is a front view of a composite cross arm insulator provided by an embodiment of the present utility model;

FIG. 3 is an enlarged schematic view of FIG. 2A;

fig. 4 is a schematic structural view of a clamping device in a closed state according to an embodiment of the present utility model;

fig. 5 is a schematic structural view of a clamping device in an open state according to an embodiment of the present utility model.

In the figure: 1. an insulator; 2. a connecting seat; 21. a base; 22. a U-shaped frame; 3. a clamping device; 31. an upper clamping claw plate; 311. a threaded hole; 312. a bolt B; 313. a rubber pad; 314. a rubber plate; 315. a through hole; 32. a lower jaw plate; 321. a connecting rod; 322. a rotating shaft; 33. a bolt A; 4. and (5) a support.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model.

The addition of the specific implementation mode is an example, and a new technical scheme can be added.

As shown in fig. 1-5, the present utility model provides a technical solution: the utility model provides a compound cross arm insulator, including insulator 1 and connecting seat 2, connecting seat 2 includes base 21 and U-shaped frame 22, base 2 articulates at the top of insulator 1, the bottom of U-shaped frame 22 passes through pivot rotation with base 21 and is connected, the opening rotation of U-shaped frame 22 is connected with clamping device 3, clamping device 3 comprises last clamping jaw board 31 and lower clamping jaw board 32 that the size structure is identical, one side of going up clamping jaw board 31 and lower clamping jaw board 32 articulates, the opposite side passes through bolt A33 to be connected, go up clamping jaw board 31 and be arc structure, screw hole 311 that a plurality of central axis and last clamping jaw board 31 arc heart coincide are offered to the screw hole 311 screw thread fit and are connected with bolt B312, connecting seat 2 can adjust clamping device 3's orientation through pivot and pivot 322, can not make the device because of cable direction deflection produces moment of torsion force and make insulator 1 fracture when the centre gripping, simultaneously, when the centre gripping, can also adjust bolt B312 and make clamping device 3 centre gripping arbitrary size cable.

As shown in fig. 4-5, in an implementation embodiment, a rubber pad 313 is disposed on an end face of one end of the bolt B312 pointing to the arc center, a rubber plate 314 with an arc-shaped surface is disposed at the bottom of the upper clamping jaw plate 31, the rubber pad 313 and the rubber plate 314 can enable the cable to be tightly attached to the clamping device 3, damage of the cable caused by scratch can be prevented, a through hole 315 is disposed at a position of the threaded hole 311 corresponding to the rubber plate 314, and the size of the through hole 315 is matched with that of the rubber pad 313. The maximum-sized cable is not tightly attached to the rubber plate 314 due to the protrusion of the rubber pad 313 when being clamped.

In one possible embodiment, as shown in fig. 4-5, two connecting rods 321 are symmetrically and fixedly arranged on the surface of the lower jaw plate 32, and the two connecting rods 321 are rotatably connected with the U-shaped frame 22 through a rotating shaft 322.

As shown in fig. 1, in one possible embodiment, the bottom of the insulator 1 is provided with a support 4 for the connection of the device to a transmission tower or the like.

Specifically, the working principle of the composite cross arm insulator is as follows: install the device on the cross arm through support 4, rotate bolt A33 and open clamping device 3, put into clamping device 3 inside with the cable, then adjust clamping device 3 orientation that connecting seat 2 made unanimous with the cable direction, rethread bolt A33 closes clamping device 3, makes cable and clamping device 3 closely laminate through the bolt B312 on the control clamping device 3, guarantees that the cable can not drop, reaches the effect of fixed cable.

The above is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (4)

1. A composite cross arm insulator is characterized in that: including insulator (1) and connecting seat (2), connecting seat (2) include base (21) and U-shaped frame (22), base (21) are articulated the top of insulator (1), the bottom of U-shaped frame (22) with base (21) are connected through pivot, the opening rotation of U-shaped frame (22) is connected with clamping device (3), clamping device (3) comprise last clamping jaw board (31) and lower clamping jaw board (32) that the size structure is identical, go up clamping jaw board (31) with one side of lower clamping jaw board (32) articulates, and the opposite side passes through bolt A (33) and connects, go up clamping jaw board (31) are the arc structure, go up clamping jaw board (31) the surface seted up a plurality of central axis with screw hole (311) that go up clamping jaw board (31) arc heart coincidence, screw hole (311) screw-thread fit is connected with bolt B (312).

2. The composite cross arm insulator of claim 1, wherein: the screw bolt B (312) is provided with a rubber pad (313) on the end face of one end of the arc center, the bottom of the upper clamping jaw plate (31) is provided with a rubber plate (314) with an attaching arc surface, a through hole (315) is formed in the position, corresponding to the rubber plate (314), of the threaded hole (311), and the size of the through hole (315) is matched with that of the rubber pad (313).

3. A composite cross arm insulator according to claim 2, wherein: two connecting rods (321) are symmetrically and fixedly arranged on the surface of the lower clamping jaw plate (32), and the two connecting rods (321) are rotationally connected with the U-shaped frame (22) through a rotating shaft (322).

4. A composite cross arm insulator according to claim 2, wherein: the bottom of the insulator (1) is provided with a support (4).