CN201286000Y

CN201286000Y - Support frame

Info

Publication number: CN201286000Y
Application number: CNU2008201718917U
Authority: CN
Inventors: 陈东威; 刘淑敏; 李宁
Original assignee: WEIFANG POWER SUPPLY Co
Current assignee: WEIFANG POWER SUPPLY Co
Priority date: 2008-09-25
Filing date: 2008-09-25
Publication date: 2009-08-05
Anticipated expiration: 2018-09-25

Abstract

The utility model discloses a supporting frame which comprises a main cross arm. The main cross arm is connected with an electric pole through a connecting device, and is provided with a support connecting piece. An accessory cross arm which is horizontally and vertically connected with the main cross arm is arranged at the middle part of the main cross arm, and a support connecting piece is arranged at the end of the accessory cross arm. As a simple realization mode, the connecting device comprises a U-shaped bolt. For further strengthening the stability of the supporting frame, the other end of the accessory cross arm is connected with the electric pole through the U-shaped bolt. The supporting frame adopting the structure has simple structure, saves materials, is not easy to loosen or shake after being used, and is particularly and suitably used as the supporting frame for a dropping switch or an arrester.

Description

A kind of bracing frame

Technical field

The utility model relates to a kind of bracing frame that can support electrical device or equipment on electric pole.

Background technology

When electric power overhaul, need carry out " drawing " to drop switch, " close " operation, and present drop switch bracing frame (climbing head) comprises a main cross-arm, main cross-arm links together by long U-bolt and long support clips and an electric pole horizontal vertical, the bottom of main cross-arm is provided with supports load, support the load diagonal brace between main cross-arm and electric pole, main cross-arm is provided with the support connecting piece that can connect drop switch, the weak point of this drop switch bracing frame is: complex structure, tie point is more, use a period of time rear support stand loose rocking easily, to " drawing ", " closing " drop switch brings inconvenience.

The utility model content

The technical problems to be solved in the utility model is to provide a kind of simple in structure, materials to economize at above-mentioned deficiency, and is difficult for the loose bracing frame that rocks after using.

For solving the problems of the technologies described above, this bracing frame, comprise main cross-arm, main cross-arm links together by jockey and electric pole, main cross-arm is provided with support connecting piece, its design feature is: the middle part of main cross-arm is provided with the secondary cross-arm that is connected with main cross-arm horizontal vertical, and the end of secondary cross-arm is provided with support connecting piece.

Main cross-arm is the main carrier of carrying support connecting piece, just carry the main support platform of drop switch, whether whether the stablizing of main cross-arm determined when " drawing ", " closing " drop switch reliable and stable, all be provided with three drop switch support connecting pieces on the main cross-arm of tradition drop switch bracing frame, that is to say that traditional main cross-arm will support the effect of three power, and be provided with bigger horizontal range between main cross-arm and the electric pole, this horizontal range is big more, and the stability of main cross-arm is poor more; The main cross-arm of this structural supporter only is provided with support connecting piece in two ends of main cross-arm, the power that is to say the support connecting piece that directly bears of main cross-arm has only two, the 3rd support connecting piece is located on the secondary cross-arm, secondary cross-arm horizontal vertical is connected the middle part of main cross-arm, be equivalent to the effect that main cross-arm also will support three power, main cross-arm by with directly be connected and all be delivered to these three power on the electric pole with electric pole, between main cross-arm and the electric pole almost is that zero distance is connected, and has guaranteed structural stability; The bracing frame of this structure has saved support load and the fixed connection apparatus thereof of diagonal brace between main cross-arm and electric pole in enhanced stability, saved material.

As a kind of simple implementation, described jockey comprises U-bolt.

In order further to strengthen the stability of this bracing frame, the other end of described secondary cross-arm links together by U-bolt and electric pole.

Secondary cross-arm is fixed on after the electric pole by U-bolt, and being equivalent to secondary cross-arm is the support connecting piece and the connection device thereof of the secondary cross-arm of strong point independent support end with the electric pole, has alleviated the abutment pressure of main cross-arm; As a same reason, lose on the main cross-arm behind the secondary cross-arm pressure, be equivalent to have only two support connecting pieces and connection device thereof to the main cross-arm application of force, traditional relatively bracing frame, main cross-arm is stressed have been reduced, and stability has also just strengthened relatively; Because the square crossing in the horizontal direction of major and minor cross-arm, and use bolt, so, can support mutually between the major and minor cross-arm, avoid single cross-arm stressed excessive and damage.

In sum, adopt the bracing frame of this structure, simple in structure, materials are economized, and are difficult for loose rocking after using, and are particularly suitable for doing the bracing frame use of drop switch or lightning arrester.

Description of drawings

In conjunction with the accompanying drawings the utility model is described in further detail:

Fig. 1 is the structural representation of traditional bracing frame;

Fig. 2 is a structural representation of the present utility model.

Among the figure: 1 is main cross-arm, and 1-1 is a support connecting piece, and 2 is electric pole, and 3 is secondary cross-arm, and 4 for supporting load, and 5 is U-bolt, and 6 is bolt, and 7 is clip.

Embodiment

Present embodiment is that example is elaborated with the drop switch bracing frame, as shown in Figure 2, this bracing frame, comprise main cross-arm 1, the middle part of main cross-arm 1 links together by U-bolt 5 and electric pole 2, and two ends of main cross-arm 1 are respectively equipped with a support connecting piece 1-1 who supports drop switch, and support connecting piece 1-1 links together by bolt 6 and main cross-arm, in order to prevent that support connecting piece 1-1 from rocking on main cross-arm 1, support connecting piece 1-1 links together by two bolts 6 and main cross-arm; This bracing frame also comprises a secondary cross-arm 3, secondary cross-arm 3 by bolt 6 horizontal vertical be connected the middle part of main cross-arm 1, secondary cross-arm 3 is provided with a support connecting piece 1-1 who supports drop switch away from an end of electric pole 2, in the present embodiment in order to save material, have the installing holes of two installation drop switch away from an end of electric pole 2 at secondary cross-arm 3, like this, secondary cross-arm 3 has not only played the supporting role of cross-arm but also has played the interconnect function of support connecting piece 1-1, in order to strengthen main cross-arm 1 and secondary cross-arm 3 connection stability, main cross-arm 1 and secondary cross-arm 3 link together by two bolts 6; In order to strengthen the stability of secondary cross-arm 3, the other end of secondary cross-arm 3 links together by U-bolt 5 and electric pole 2, like this, main cross-arm 1 and secondary cross-arm 3 U-bolt by separately 5 respectively directly link together with electric pole 2, making the distance between main cross-arm 1 and the electric pole 2 is zero, avoided that main cross-arm 1 causes loosely organized problem of rocking easily in traditional bracing frame away from electric pole 2, and the middle part of the middle part of main cross-arm 1 and secondary cross-arm 3 links together by two bolts 6, structure is more stable than traditional bracing frame, and saved support load 4 and fixing hoop 7 thereof in traditional bracing frame, materials are more economized.

In the above-described embodiments, be that example describes with the drop switch bracing frame, this bracing frame is also applicable to lightning arrester, and its structure and operation principle are similar, no longer carefully state at this.

Claims

1, a kind of bracing frame, comprise main cross-arm (1), main cross-arm (1) links together by jockey and electric pole (2), main cross-arm (1) is provided with support connecting piece (1-1), it is characterized in that: the middle part of main cross-arm (1) is provided with the secondary cross-arm (3) that is connected with main cross-arm (1) horizontal vertical, and the end of secondary cross-arm (3) is provided with support connecting piece (1-1).

2, bracing frame as claimed in claim 1 is characterized in that: described jockey comprises U-bolt (5).

3, bracing frame as claimed in claim 1 or 2 is characterized in that: the other end of described secondary cross-arm (3) links together by U-bolt (5) and electric pole (2).