CN201276868Y

CN201276868Y - Support frame

Info

Publication number: CN201276868Y
Application number: CNU2008200278572U
Authority: CN
Inventors: 孙风琴
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-08-30
Filing date: 2008-08-30
Publication date: 2009-07-22
Anticipated expiration: 2018-08-30

Abstract

The utility model discloses a supporting frame comprising a cross arm. Two ends of the cross arm are respectively connected with a fixed arm forming a triangle structure relation with the cross arm, the fixed arms are fixedly connected with an electrical pole via a main collar clamp, the two ends of the cross arm are further respectively connected with a bracing arm forming a triangle structure relation with the cross arm, and the bracing arms are fixedly connected with the electrical pole via a secondary collar clamp. One of the embodiments includes the secondary collar clamp is arranged on the electrical pole on the upper portion of the main collar clamp, and the other embodiment includes the secondary collar clamp is arranged on the electric pole on the lower portion of the main collar clamp. The lengths of the two fixed arms are identical, aiming to symmetrize the supporting frame structure. The supporting frame of the above structure is stable in structure and is durable and permanent, which is particularly adaptable to being used as the supporting frame of electric wires or electric power transmission apparatuses.

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

On power transmission line, generally adopt the prop carrier of the bracing frame on electric pole and top thereof as transmission line of electricity, bracing frame commonly used at present comprises a cross-arm, the cross-arm middle part is fixed together by linkage and electric pole, according to different application purposes, different accessories is installed on the cross-arm, this bracing frame is because simple in structure and be widely used, but also there is following weak point in the bracing frame of this structure: according to different needs, the quantity of transportion wire is generally two, three or four, that is to say and on cross-arm, to be evenly distributed with two, three or four line insulation connectors, and link together by fastening devices and electric pole in the middle part of having only cross-arm on the cross-arm of traditional bracing frame, when conveying circuit configuration portion is even, the inevitable unbalance stress of cross-arm, loosening easily inclination does not have the stable supporting role of circuit.

The utility model content

The technical problems to be solved in the utility model is to provide a kind of Stability Analysis of Structures, permanent durable bracing frame at above-mentioned deficiency.

For solving the problems of the technologies described above, this bracing frame comprises cross-arm, and its design feature is: the two ends of cross-arm are connected with a fixedly load that concerns with cross-arm formation triangular structure respectively, and fixing load being fixed together by main card hoop and electric pole; The two ends of cross-arm also are connected with a support with cross-arm formation triangular structure relation respectively and carry on a shoulder pole, and support load and being fixed together by secondary clip and electric pole.

This bracing frame has utilized leg-of-mutton stability principle, on two ends of cross-arm, connect a fixing load respectively, cross-arm and two fixing loads join end to end and constitute a triangular structure, we claim this triangle to be " fixed triangle shape ", wherein the junction of two cross-arms is fixed together by main card hoop and electric pole, adopt such triangular structure, can guarantee cross-arm and the stability of two fixing loads on the plane, place, in this plane, can not occur causing cross-arm to rock because the transmission line of electricity configuration is inhomogeneous; In order to make this bracing frame that same stability also be arranged on solid space, with cross-arm as common edge, also be connected with one respectively in two ends of cross-arm and support load, cross-arm and two support loads join end to end and constitute another triangle, we claim this triangle to be " support triangle shape ", two junctions of supporting load are fixed on the electric pole by secondary clip, adopt this structure after, cross-arm and two support load can guarantee structural stability on its plane, place; Because " fixed triangle shape " and " support triangle shape " is common edge with the cross-arm, and " fixed triangle shape " two fixing load junctions and electric pole are fixed together, the junction is carried on a shoulder pole in two supports of " support triangle shape " and electric pole is fixed together, so fixed triangle shape " and " support triangle shape " constituted a triangular pyramid structure by electric pole as fillet again; like this; this bracing frame just can be divided into four triangular structures; each triangular structure can guarantee the stability of this triangle projective planum inner structure; after described four triangles were combined into one, the bracing frame of this triangular pyramid structure all can guarantee stability of structure in which direction.

As a kind of embodiment, described secondary clip is positioned on the electric pole on main card hoop top.

The bracing frame of this structure supports load except supporting the cross-arm balance and stability, has also played the tension cross-arm and has prevented the effect that cross-arm drops.

As another kind of embodiment, described secondary clip is positioned on the electric pole of main card hoop bottom.

The bracing frame of this structure supports load and mainly plays carrying cross-arm weight and keep the cross-arm balance.

In order to make the support frame structure symmetry, the equal in length of described two fixing loads.

In sum, adopt the bracing frame of this structure, Stability Analysis of Structures, durable for a long time, be particularly suitable for doing electric power carry in the bracing frame of equipment or electric wire.

Description of drawings

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

Fig. 1 is a three-dimensional effect diagram of the present utility model;

Fig. 2 is a vertical view of the present utility model.

Among the figure: 1 is cross-arm, and 1-1 is fixing load, and 1-2 is for supporting load, and 2 is the main card hoop, and 3 is electric pole, and 4 is secondary clip, and 5 is the cross-arm connector.

The specific embodiment

As shown in the figure, this bracing frame, the cross-arm 1 that comprises horizontal positioned, the two ends of cross-arm 1 are connected with a fixing load 1-1 who concerns with cross-arm 1 formation triangular structure respectively, the fixing load of cross-arm 1 and two 1-1 is end to end to connect into one " fixed triangle shape ", by leg-of-mutton stability principle as can be known, planar should " fixed triangle shape " have stable structure; Should " fixed triangle shape " be connected for convenience with electric pole 3, the junction of two fixing load 1-1 is equipped with a main card hoop 2, " fixed triangle shape " is fixed together by main card hoop 2 and electric pole 3, like this, " fixed triangle shape " is connected on the electric pole 3 with regard to level, can guarantee stability of structure on the horizontal direction; In order to make this bracing frame in the vertical direction also have stability, the two ends of cross-arm 1 also are connected with a support with cross-arm 1 formation triangular structure relation respectively and carry on a shoulder pole 1-2, cross-arm 1 and two support that load 1-2 is end to end to connect into one " support triangle shape ", " support triangle shape " is positioned at the below of " fixed triangle shape ", angle between " support triangle shape " and " fixed triangle shape " is an acute angle, for " support triangle shape " is fixed on the electric pole 3, two junctions of supporting load 1-2 are equipped with secondary clip 4, " support triangle shape " is fixed together with electric pole 3 by secondary clip 4, like this, " fixed triangle shape " and " support triangle shape " just constitutes a triangular pyramid by electric pole 3, triangular pyramid can realize carrying the function of power equipment and electric wire no matter still all have very strong stability on the vertical direction in the horizontal direction.Load power equipment or electric wire for convenience, cross-arm connector 5 is installed on cross-arm 1.

The bracing frame of this structure utilizes leg-of-mutton stability principle, has organically combined cross-arm 1, fixing load 1-1 and has supported load 1-2, makes structural stability reach the strongest, can satisfy fully electric power carry in the carrying demand of power equipment and electric wire.

Claims

1, a kind of bracing frame comprises cross-arm (1), it is characterized in that: the two ends of cross-arm (1) are connected with a fixedly load (1-1) that concerns with cross-arm (1) formation triangular structure respectively, and fixing load (1-1) is fixed together by main card hoop (2) and electric pole (3); The two ends of cross-arm (1) also are connected with a support with cross-arm (1) formation triangular structure relation respectively and carry on a shoulder pole (1-2), support load (1-2) and are fixed together by secondary clip (4) and electric pole (3).

2, bracing frame as claimed in claim 1 is characterized in that: described secondary clip (4) is positioned on the electric pole (3) on main card hoop (2) top.

3, bracing frame as claimed in claim 1 is characterized in that: described secondary clip (4) is positioned on the electric pole (3) of main card hoop (2) bottom.

4, as claim 1,2 or 3 described bracing frames, it is characterized in that: the equal in length of described two fixing loads (1-1).