CN203481750U - Electric transmission circuit bird preventing box - Google Patents

Abstract

The utility model discloses an electric transmission circuit bird preventing box. The electric transmission circuit bird preventing box is characterized in that on a power transmission iron tower, the position above a side-phase insulator is provided with a side-phase bird preventing box for covering side-phase cross arm insulator hanging points, the position above a middle-phase insulator is provided with a middle-phase bird preventing box for covering middle-phase cross arm insulator hanging points, and the side-phase bird preventing box and the middle-phase bird preventing box are triangular boxes made of epoxy resin panels. The cross arm insulator hanging points where nests are easily built are covered with the bird preventing boxes, birds are prevented from standing or nesting on the cross arm insulator hanging points, the safety of an electric transmission circuit is improved, the maintenance rate is reduced, and the electric transmission circuit bird preventing box is suitable for being used on various electric transmission circuit iron towers for preventing bird troubles.

Description

Bird-proof box for transmission line

technical field

The utility model belongs to the field of installation auxiliary facilities for overhead transmission lines, and is a bird protection device for transmission lines.

Background technique

Bird damage is one of the main reasons that threaten transmission lines, and the number of tripping accidents of transmission lines due to bird damage accounts for 1/4 of the total number of accidents every year. According to years of operating experience, birds like to inhabit and build nests at the cross-arm hanging points of overhead transmission line towers. Birds inhabit the hanging point of the cross-arm insulator. When they defecate, the bird droppings will short-circuit some insulators near the hanging point of the cross-arm insulator, resulting in insufficient electrical distance and flashover discharge grounding, causing the line to trip. The bird's nest at the hanging point has many weeds, branches and other sundries on it. These sundries are easy to be connected to the wire, causing a short circuit to the ground and causing a line trip accident.

However, conventional anti-bird thorns, anti-bird pads and other devices have a short anti-bird cycle, and birds will also perch on them. As for the sound and light anti-bird device, after the birds adapt to it, they will lose the anti-bird effect.

At present, many bird-proof boxes are made of non-insulating and non-corrosion-resistant materials such as galvanized iron sheets and plastics. The service life is short and the safety performance is not high. Moreover, the installation methods are fixed by screws or tied with iron wires, which is not conducive to line maintenance. method. Utility model content

The utility model aims to overcome the deficiencies of the prior art and provide a bird-proof box for transmission lines with insulation and corrosion resistance, long service life and high safety performance. The bird box is fully filled to prevent birds from staying and nesting at the hanging points of the cross-arm insulators, improving the safety of transmission lines and reducing maintenance rates. It is suitable for preventing bird damage on various types of transmission line towers.

The utility model adopts following technical scheme for solving technical problems:

The utility model is a bird-proof box for a power transmission line, which is applied on a power transmission tower. Anti-bird boxes, located above the middle-phase insulators, set the middle-phase bird-proof boxes for filling the hanging points of the middle-phase cross-arm insulators, the side-phase bird-proof boxes and the middle-phase bird-proof boxes are made of epoxy resin plates triangular box.

The utility model transmission line anti-bird box is also characterized by:

The fixed structure of the side-phase bird-proof box on the transmission tower is as follows: a fixed card seat is provided, and the fixed card seat is extended from the top of the "U"-shaped card and the "U"-shaped card to one side. The "F"-shaped structure is composed of connecting plates, the "U"-shaped card is fixed on the angle steel of the hanging point of the side-phase cross-arm insulator by bolts, and the connecting plate is fixed on the side-phase bird-proof box by rivets. bottom plate.

The fixing structure of the middle-phase bird-proof box on the transmission tower is as follows: a positioning seat is provided, and the positioning seat is composed of a "U"-shaped card welded with a screw hole on the top and a hinge piece welded with a connecting rod. The screw hole is set on the connecting rod to form a rotatable structure, and the "U"-shaped card with the bolt hole welded on the top is fixed on the angle steel at the hanging point of the middle-phase cross-arm insulator through fastening screws. The hinge sheet is fixed on one side bottom corner of the middle phase bird-proof box.

Compared with the prior art, the beneficial effects of the utility model are reflected in:

1. The utility model uses the triangular box structure to fit well the shape of the crossarm at the hanging point of the crossarm insulator of the transmission tower, and fills the top of the hanging point of the crossarm insulator which is easy to build a nest, and effectively prevents bird damage. At the same time, the use of epoxy resin boards solves the problems of ordinary bird-proof boxes that are not corrosion-resistant, non-insulated, and low in strength, and can prevent birds from perching and nesting at the hanging points of the cross-arm insulators for a long time.

2. The anti-bird box of the side phase of the utility model is installed on the angle steel of the hanging point of the cross-arm insulator of the side phase through the fixed bracket, and the anti-bird box of the side phase can be removed by removing the bolt of the "U" type card for the maintenance of the transmission tower work, simple structure and easy installation.

3. The utility model forms a reversible structure on the middle-phase bird-proof box through the screw hole of the positioning seat and the connecting rod of the hinge, so that the whole middle-phase bird-proof box can be turned over and moved to one side during the inspection and maintenance of the iron tower. It is convenient and has little impact on maintenance work.

Description of drawings

Fig. 1 is a schematic diagram of the overall installation structure of the utility model;

Fig. 2 is a schematic diagram of the installation structure of the side phase anti-bird box of the present invention;

Fig. 3 is a B-direction sectional view of Fig. 2;

Fig. 4 is a schematic diagram of the installation structure of the medium-phase bird-proof box of the utility model;

Fig. 5 is a schematic diagram of the connection structure of the middle-phase bird-proof box of the utility model;

Fig. 6 is a sectional view along the direction A of Fig. 5;

Labels in the figure: 1 transmission tower; 2aA phase insulator; 2bB phase insulator; 2cC phase insulator; 3a left phase bird-proof box; 3b left middle phase bird-proof box; ; 4 wires; 5 fixed card holder; 6 bolts; 7 angle steel for hanging point of side-phase cross-arm insulator; 8 rivets; 9 protective plate; 10 positioning seat; 11 screw hole; 12 connecting rod; 13 hinge piece; Screws; 15 angle steels for the hanging points of the middle-phase cross-arm insulators; 16 handles.

Specific Embodiments (Green indicates the supplementary description and explanation of the claims, which can be further refined)

In the specific implementation, as shown in Figure 1, a bird-proof box for transmission lines is applied on the hanging point of the cross-arm insulator of the transmission tower 1. The side-phase bird-proof boxes for the hanging points of the phase cross-arm insulators are located above the middle-phase insulators, and the middle-phase bird-proof boxes for filling the hanging points of the middle-phase cross-arm insulators are set. The color can be matched with the phase color of the line, which saves the trouble of hanging the phase plate. For example, the anti-bird boxes installed in different phases can adopt three different colors of "yellow, green and red" to correspond to the three phase colors of "ABC". It can prevent bird damage and can intuitively reflect the phase difference. In this embodiment, the bird-proof box 3a of the left phase is set in yellow, which is used to hang the hanging point space above the A-phase insulator 2a of the side-phase insulators; the middle-phase bird-proof box The box is set to green for hanging the middle phase insulator, that is, the hanging point space above the B-phase insulator 2b; the right phase bird-proof box 3c is set to red, and is used to hang the hanging point space above the C-phase insulator 3a in the side phase insulators.

In the specific implementation, the size of the box is determined according to the form and installation position of different types of pole towers. A triangular box made of connected rivets, that is, a wedge-shaped closed triangular prism structure.

As shown in Figure 2 and Figure 3, the fixed structure of the side-phase bird-proof box on the transmission tower 1 is as follows: a fixed card holder 5 is provided, and the fixed card holder 5 is composed of a "U" type card and a top of the "U" type card. The "F" type structure is formed by the connection plate extending to one side. The "U" type card is fixed on the angle steel 7 of the hanging point of the side-phase cross-arm insulator through the bolt 6, and the connection plate is fixed on the side-phase bird-proof box through the rivet 8. bottom of the bottom plate. In order to prevent the rivet 8 from directly bearing force with the epoxy resin board, a protective plate 9 can also be set at the bottom of the side-phase bird-proof box; the rivet 8 is fixed with the connecting plate through the protective plate 9, so as to prevent the epoxy resin board from directly bearing the force of the rivet for a long time Stress damages aging. When overhauling lead 4, unclamp bolt 6, just can move side phase anti-bird box, does not affect overhaul operation, after overhaul finishes, side phase anti-bird box is reset and gets final product.

As shown in Fig. 5 and Fig. 6, the fixed structure of the middle-phase bird-proof box on the transmission tower 1 is as follows: a positioning seat 10 is provided, and the positioning seat 10 is a "U"-shaped card welded with a screw hole 11 on the top and a welded The hinge piece 13 of the connecting rod 12 is composed of a screw hole 11 set on the connecting rod 12 to form a rotatable structure, and a nut is installed before and after the connecting rod 12 passes through the screw hole 11 to fix the position of the connecting rod 12. In order to prevent the connecting rod 12 from shaking too much left and right, it will affect the stability of the middle phase bird-proof box turning over. The "U"-shaped card with bolt holes 11 welded on the top is fixed on the angle steel 15 of the hanging point of the middle-phase cross-arm insulator through fastening screws 14, and the hinge 13 is fixed on one side bottom corner of the middle-phase bird-proof box.

In the specific implementation, as shown in Figure 4, in order to fully hang the middle phase insulator 2b, two middle phase bird-proof boxes need to be arranged symmetrically, namely the left middle-phase bird-proof box 3b and the right middle-phase bird-proof box 3b', and on the outside A handle 16 is installed on the inclined surface. By pulling the handle 16, the middle-phase bird-proof box can be turned over to both sides respectively, and the maintenance space above the hanging point of the B-phase insulator 2b can be released without removing the bird-proof box, so as to avoid dismantling the anti-bird box during maintenance. The bird box takes a lot of time and affects the maintenance efficiency.

Claims (3)

1. A bird-proof box for transmission lines is applied on the transmission tower (1), and is characterized in that: on the transmission tower (1), the top of the side-phase insulators is arranged for filling up the side-phase cross-arm insulators The side-phase bird-proof box of the hanging point is located above the middle-phase insulator (2b) and is used to fill the middle-phase bird-proof box of the hanging point of the middle-phase cross-arm insulator, the side-phase bird-proof box and the middle-phase bird-proof box It is a triangular box made of epoxy resin sheet. 2. The transmission line anti-bird box according to claim 1, characterized in that: the fixed structure of the side-phase bird-proof box on the transmission tower (1) is: a fixed bracket (5) is set, and the fixed The card seat (5) is an "F" structure composed of a "U"-shaped card and a connecting plate extending from the top of the "U"-shaped card to one side, and the "U"-shaped card is connected by a bolt (6) It is fixed on the angle steel (7) of the hanging point of the side-phase cross-arm insulator, and the connecting plate is fixed on the bottom plate of the side-phase bird-proof box through rivets (8). 3. The transmission line anti-bird box according to claim 1, characterized in that: the fixed structure of the middle-phase bird-proof box on the transmission tower (1) is: a positioning seat (10) is provided, and the positioning seat (10) is composed of a "U" type card welded with a screw hole (11) on the top and a hinge piece (13) welded with a connecting rod (12), and the screw hole (11) is sleeved on the connecting rod ( 12) The upper part is a rotatable structure, the "U" type card with bolt holes (11) welded on the top is fixed on the angle steel (15) of the hanging point of the middle-phase cross-arm insulator through fastening screws (14) , the hinge sheet (13) is fixed on one side bottom corner of the said middle-phase bird-proof box.

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