CN210918440U

CN210918440U - Insulating cross arm with bird damage prevention device

Info

Publication number: CN210918440U
Application number: CN201921338972.6U
Authority: CN
Inventors: 刘进生; 刘家旺
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-08-19
Filing date: 2019-08-19
Publication date: 2020-07-03
Anticipated expiration: 2029-08-19

Abstract

An insulating cross arm with a bird damage prevention device comprises a cross arm, wherein the middle part of the cross arm is provided with an installation mechanism for fixing with a telegraph pole; the spine and the triangular main body are of an integral structure, or the spine is embedded into a metal spine at the vertex angle of the triangular main body. The utility model has the advantages that: the bird damage prevention device is installed between insulators on the cross arm, and the inclined plane of the triangular main body and the spine on the top end prevent birds from falling off, so that the nest cannot be built, short circuit between the insulators due to the nest is effectively avoided, and the operation safety of the power transmission line is improved.

Description

Insulating cross arm with bird damage prevention device

Technical Field

The utility model relates to an insulating cross arm of bird pest device is prevented in area, mainly used install on the high-tension line wire pole, prevent that the bird from building nest on the cross arm.

Background

On the cross arm of a high-voltage line telegraph pole, bird (such as crow and the like) nests are often arranged, and due to the fact that the nests are made of various materials and are not insulators, particularly the volume of the nests or the arrangement of a plurality of nests is full of space between two adjacent insulators, short-circuit accidents between lines (particularly after raining or snowing) can be caused, and potential safety hazards are brought to operation of a power transmission line.

Disclosure of Invention

The utility model aims at providing an insulating cross arm of bird pest device is prevented in area to solve prior art bird pest and bring the problem of potential safety hazard for transmission line's operation.

The technical scheme of the utility model is that: an insulating cross arm with a bird damage prevention device comprises a cross arm, wherein the middle part of the cross arm is provided with an installation mechanism for fixing with a telegraph pole; the spine and the triangular main body are of an integral structure, or the spine is embedded into a metal spine at the vertex angle of the triangular main body.

The utility model has the advantages that: the bird damage prevention device is installed between insulators on the cross arm, and the inclined plane of the triangular main body and the spine on the top end prevent birds from falling off, so that the nest cannot be built, short circuit between the insulators due to the nest is effectively avoided, and the operation safety of the power transmission line is improved.

Drawings

Fig. 1 is a schematic view of the overall structure of the utility model mounted on a utility pole;

FIG. 2 is a cross-sectional view A-A of FIG. 1;

FIG. 3 is a cross-sectional view B-B of FIG. 1 (with the insulator omitted);

fig. 4 is a schematic view (bottom view of fig. 1) of the connection structure between the rectangular cross arm and the utility pole of the present invention;

fig. 5 is a schematic view of the connection structure between the rectangular tubular cross arm and the utility pole of the present invention;

FIG. 6 is a front view of a first embodiment of the bird damage prevention device of the present invention;

FIG. 7 is a left side view of FIG. 6;

FIG. 8 is a front view of a second embodiment of the bird damage prevention device of the present invention;

FIG. 9 is a left (right) view of FIG. 8;

FIG. 10 is a front view of a third embodiment of the bird damage prevention device of the present invention;

fig. 11 is a cross-sectional view C-C of fig. 10.

Description of reference numerals: 1. cross arm, 11, reinforcing angle (of a right-angled insulating cross arm), 2, telegraph pole, 3, (porcelain bottle) insulator, 4, bird damage prevention device, 40, pin shaft (or hinge), 41, triangular main body, 42, spine, 43, fastening bolt, 44, nut or screw hole, 45, broadside, 46, narrow side, 47, middle plate, 48, U-shaped bayonet, 49, clamping arm, 5, U-shaped hoop, 6, pillow-shaped cushion block, 61, arc-shaped groove, 7 and nut.

Detailed Description

Referring to fig. 1-4, an embodiment of an insulating cross arm with bird damage prevention device of the present invention includes a right-angled (angle iron-shaped) insulating cross arm 1, and a reinforcing angle 11 is provided at an inner angle of the right-angled insulating cross arm 1. An installation mechanism for fixing the utility pole 2 is arranged in the middle of the insulating cross arm 1. Be equipped with between each insulator 3 on this insulating cross arm 1 and prevent bird pest device 4, should prevent bird pest device 4 and include triangle-shaped main part 41, be equipped with one row of interval distribution's spine 42 along the long direction at this triangle-shaped main part 41 apex angle, be equipped with in the bottom surface of this triangle-shaped main part 41 and be used for the coupling mechanism fixed with insulating cross arm 1, the utility model discloses an insulating cross arm 1 and triangle-shaped main part 41 are made by stereoplasm insulating material, and this spine 42 and triangle-shaped main part 41 structure as an organic whole, or the metal spine of this triangle-shaped main part 41 apex angle of embedding.

The utility model discloses a fixed installation mechanism between an insulating cross arm 1 and a telegraph pole 2 (see fig. 1, 4 and 5), which comprises a U-shaped hoop 5 and a pillow-shaped cushion block 6, wherein two ends of the U-shaped hoop 5 are provided with screw rods and nuts 7; an arc-shaped groove 61 matched with the telegraph pole is formed in the middle of the pillow-shaped cushion block 6, through holes corresponding to the U-shaped hoops 5 are formed in two ends of the arc-shaped groove, the bottom of the pillow-shaped cushion block 6 is formed in the middle of the insulating cross arm 1, the arc-shaped groove 61 of the pillow-shaped cushion block 6 leans against one side of the telegraph pole 2, the U-shaped hoops 5 are clamped on the other side of the telegraph pole 2, and two screw ends of the U-shaped hoops 5 penetrate through the through holes corresponding to the pillow-shaped cushion block 6 and the insulating cross arm 1 and are respectively provided with; the pillow blocks 6 are made of a hard insulating material.

The hard insulating material comprises: thermosetting resins, thermoplastic resins or engineering plastics.

Referring to fig. 6-11, the connection mechanism between the bird damage prevention device 4 and the insulating cross arm 1 of the present invention has three embodiments, the first embodiment is suitable for being installed on the right-angled insulating cross arm 1, and the second and third embodiments are suitable for being installed on the rectangular tubular insulating cross arm 1, which are respectively described as follows.

Referring to fig. 6 and 7, the first embodiment of the connecting mechanism is composed of a wide side 45, a narrow side 46, a middle plate 47, a nut or a screw hole 44 (the nut is equivalent to a thickened screw hole), and a fastening bolt 43, wherein the middle plate 47 parallel to the bottom surface is arranged in the middle of the triangular main body 41; a reduced opening is provided on the bottom surface of the triangular main body 41, the two sides of the reduced opening are a wide side 45 and a narrow side 46, respectively, the width of the wide side 45 is larger than that of the narrow side 46, at least two nuts 44 (screw holes) are provided on the wide side 45, and a fastening bolt 43 is provided. The installation method is that the triangular main body 41 is placed right after the top edge of the angle iron cross arm 1 is sleeved with the narrow opening between the wide edge 45 and the narrow edge 46 in an inclined mode, so that the bottom surface of the middle plate 47 is attached to the top surface of the right-angle insulating cross arm 1, and finally the fastening bolt 43 is screwed down. At this time, one side of the vertical side of the insulating cross arm 1 abuts against the top end of the narrow side 46, the bird damage preventing device 4 is firmly connected with the cross arm 1, and the bird damage preventing device 4 can be taken down only by loosening the fastening bolt 43.

Referring to fig. 8 and 9, the second embodiment of the connecting mechanism comprises a U-shaped bayonet 48 and fastening bolts 43, wherein the opening of the U-shaped bayonet 48 faces downwards and is connected with two sides of the bottom surface of the triangular main body 41, nuts or screw holes 44 are connected with the outer side of one side or two sides of the U-shaped bayonet 48, and the outer end of each nut or screw hole 44 is provided with one fastening bolt 43. This embodiment is clamped on both sides of the tubular insulating cross arm 1 by U-shaped bayonets 48 on the bottom surface, and fastened by fastening bolts 43 on one or both sides (as shown in fig. 9).

Referring to fig. 10 and 11, a third embodiment of the connecting mechanism includes a clip formed by two opposite L-shaped latch arms 49, the top ends of the latch arms 49 are hinged to both sides of the bottom surface of the triangular body 41 by pins 40, the lower ends of the latch arms 49 are bent downward and provided with through holes, and fastening bolts 43 are inserted through the through holes at the lower ends of the two latch arms 49 to be connected to nuts 44. This embodiment is formed by surrounding the outer periphery of the tubular insulating cross arm 1 with a clip formed by two L-shaped clip arms 49, and connecting and clamping the lower ends of the two clip arms 49 to each other with fastening bolts 43 (as shown in fig. 11). The utility model discloses the both ends of pipy insulating cross arm 1 can be sealed with insulating material, avoid intaking.

Claims

1. An insulating cross arm with a bird damage prevention device comprises a cross arm, wherein the middle part of the cross arm is provided with an installation mechanism for fixing with a telegraph pole; the spine and the triangular main body are of an integral structure, or the spine is embedded into a metal spine at the vertex angle of the triangular main body.

2. The insulating cross arm with the bird damage prevention device as claimed in claim 1, wherein the cross section of the insulating cross arm is a right-angled shape or a rectangular tubular shape, and a reinforcing angle is provided at an inner angle of the right-angled insulating cross arm.

3. The insulating cross arm with the bird damage prevention device as claimed in claim 1, wherein a middle plate parallel to the bottom surface is provided at the middle part inside the triangular body; the bottom surface of the triangular main body is provided with a necking, two sides of the necking are respectively a wide side and a narrow side, and the wide side is provided with at least two screw holes and is provided with a fastening bolt; the wide edge, the narrow edge, the middle plate, the screw hole and the fastening bolt form the connecting mechanism.

4. The insulating cross arm with the bird trouble preventing device of claim 1, wherein the connecting mechanism comprises a U-shaped bayonet and fastening bolts, the opening of the U-shaped bayonet faces downward and is connected with two sides of the bottom surface of the triangular main body, screw holes are arranged on one side or two sides of the U-shaped bayonet, and each screw hole is provided with one fastening bolt.

5. The insulating cross arm with the bird trouble preventing device as claimed in claim 1, wherein the connecting means comprises a yoke consisting of two oppositely disposed L-shaped catching arms, the top ends of the catching arms are hinged to both sides of the bottom surface of the triangular body by means of pins, the lower ends of the catching arms are bent downward and provided with through holes, and fastening bolts are passed through the through holes at the lower ends of the two catching arms and connected with nuts.

6. The insulated cross arm with the bird damage prevention device as claimed in claim 1, wherein the mounting mechanism comprises a U-shaped hoop and a pillow block, wherein two ends of the U-shaped hoop are provided with screws and nuts; the middle part of the pillow-shaped cushion block is provided with an arc-shaped groove matched with the telegraph pole, two ends of the arc-shaped groove are provided with through holes corresponding to two ends of the U-shaped hoop, the bottom of the pillow-shaped cushion block is arranged in the middle part of the insulating cross arm, the arc-shaped groove of the pillow-shaped cushion block leans against one side of the telegraph pole, the U-shaped hoop is clamped at the other side of the telegraph pole, and two screw rod ends of the U-shaped hoop penetrate through the through holes corresponding to the pillow-shaped cushion block and the insulating cross arm and are respectively provided; the pillow block is made of a hard insulating material.

7. The insulating cross arm with bird damage prevention device as set forth in claim 6, wherein the hard insulating material comprises: thermosetting resins, thermoplastic resins or engineering plastics.