CN205400233U - Install cross arm on wire pole - Google Patents

Abstract

The utility model relates to a cross arm installed on a utility pole, which effectively solves the problems of inconvenient fixing of the traditional cross arm, small bearing gravity and inconvenient operation; the technical solution includes the first cross arm, Above and below the first cross-arm, there are second and third cross-arms. , The third cross-arm is provided with mounting holes, the first cross-arm is connected with a hoop through a connecting ring, the hoop includes two semicircular hoops, and the two semicircular hoops are connected by a plurality of connecting rods. One end of the semicircular hoop is connected with a radian hook, and there is a radian plate connecting two semicircular hoops between the radian hooks. The other end of the semicircular hoop is connected with a cylindrical rod corresponding to the radian hook through a spring. , the middle part of the cylindrical rod is covered with a cam column which does not coincide with its center, and a handle is provided on the cam column; the utility model is easy to install and not easy to fall off.

Description

Cross arm mounted on utility pole

technical field

The utility model relates to the technical field of electric power, in particular to a cross arm installed on an electric pole.

Background technique

The angle iron fixed horizontally on the top of the utility pole has a porcelain vase on it, which is used to support the overhead wire. The function of the cross arm: The cross arm is an important part of the tower. Its function is to install insulators and fittings to support the wires and lightning conductors and keep them at a certain safe distance according to regulations.

The cross arm is an important part of the pole tower. Its function is to install insulators and fittings, to support the wires and lightning conductors, and to keep them at a certain safe distance according to regulations. At present, iron cross arms and porcelain cross arms are widely used. Composite material cross-arm, etc. The composite material cross-arm has the advantages of good antifouling performance, environmental corrosion resistance, light weight, easy installation and maintenance, but the composite material cross-arm is mostly a pipe formed by the traditional pultrusion process. The structure is hollow and thin-walled. The composite material cross arm needs to be used with U-shaped hoops. During installation, the U-shaped hoops are sleeved on the pole tower. Connected, so that the two sides of the cross arm are respectively against the nut and the pole tower, and the cross arm is stably positioned.

However, when the current cross-arm is fixed, because it has to withstand various lines such as wires and lightning conductors, the cross-arm is only fixed in the middle, resulting in unbalanced ends of the cross-arm, resulting in uneven force on the cross-arm and causing it to break. , now many cross-arms are equipped with diagonal stay rods on both sides of the cross-arm to connect to the utility poles, forming two triangular structures for fixed connection, and the current cross-arm can only be equipped with a fixed number of insulators to bear the fixed For heavy wires, every time a cross arm is installed, hoops are required to complete the fixation, resulting in waste of resources and unchanged operation.

So it is necessary to find a way to solve this problem.

Contents of the invention

In view of the above situation, in order to overcome the defects of the prior art, the purpose of this utility model is to provide a cross arm installed on the utility pole, which effectively solves the inconvenient fixing of the traditional cross arm, less gravity and inconvenient operation. The problem.

The technical solution is to include a first cross arm, a second cross arm and a third cross arm are respectively arranged above and below the first cross arm, and the first cross arm, the second cross arm and the third cross arm From small to large from top to bottom, the two sides of the first cross arm, second cross arm and third cross arm are connected by stabilizing rods to form a trapezoidal structure consisting of the first cross arm, second cross arm and third cross arm , the first cross-arm, the second cross-arm, the third cross-arm and the stabilizing rod are tightly connected by built-in locks, and the first cross-arm, the second cross-arm, and the third cross-arm are equipped with multiple installation insulators. Hole, the first cross arm is connected with a hoop through the connecting ring, the hoop includes two semicircular hoops aligned up and down, the two semicircular hoops are connected by a plurality of connecting rods, the semicircular hoop One end is connected with an outwardly curved arc hook, and there is an arc plate connecting two semicircular hoops between the arc hooks. The other end of the semicircular hoop is connected with a cylindrical rod corresponding to the arc hook through a spring. The middle part of the rod is covered with a cam column that does not coincide with the center, and a handle is provided on the cam column to form a cylindrical rod stretched by a spring, so that the cylindrical rod is stuck in the arc hook, and the handle is pressed outward, and the cam column is against the arc. The structure of the board.

The utility model has an ingenious structure, multiple cross-arms can be fixed by using one hoop, and multiple insulators can be installed to increase the number of installation wires, the operator can install it conveniently, reduce the danger of the operator working at high altitude, and the hoop is easy to use, Not easy to fall off.

Description of drawings

Fig. 1 is a schematic diagram of a trapezoidal cross-arm of the present invention.

Figure 2 is a schematic diagram of the connection between the cross arm and the stabilizing rod of the utility model.

Fig. 3 is a schematic diagram of a top view of the utility model.

Fig. 4 is a three-dimensional schematic view of the hoop of the present invention.

detailed description

The specific embodiments of the present utility model will be described in further detail below in conjunction with the accompanying drawings.

Given by Fig. 1 to Fig. 4, the utility model comprises the first cross arm 1, and the first cross arm 1 is respectively provided with parallel second cross arm 2 and the third cross arm 3 above and below, first cross arm 1, The second cross arm 2 and the third cross arm 3 increase from small to large sequentially from top to bottom. The cross arm 1, the second cross arm 2, and the third cross arm 3 form a trapezoidal structure, and the first cross arm 1, the second cross arm 2, the third cross arm 3 and the stabilizing rod 4 are tightly connected by built-in locks, The first cross arm 1, the second cross arm 2, and the third cross arm 3 are provided with a plurality of installation holes 5 for installing insulators. The first cross arm 1 is connected with a hoop 7 through a connecting ring 6. The hoop 7 includes a vertical alignment Two semicircular hoops 8 are connected by a plurality of connecting rods 9 between the two semicircular hoops 8. One end of the semicircular hoop 8 is connected with an outwardly curved arc hook 10, and the arc hook 10 There is a radian plate 11 connecting two semicircular hoops 8 between them, and the other end of the semicircular hoop 8 is connected with a cylindrical rod 13 corresponding to the radian hook 10 through a spring 12, and the middle part of the cylindrical rod 13 is covered with The cam column 14 that does not coincide with its center, the cam column 14 is provided with a handle 15, and the cylindrical rod 13 is stretched through the spring 12, so that the cylindrical rod 13 is stuck in the arc hook 10, and the handle 15 is pressed outward, and the cam column 14 Against the structure of the curved plate 10 .

Between the first cross arm 1 and the second cross arm 2 , and between the second cross arm 2 and the third cross arm 3 , a plurality of fixing frames 16 are provided.

One side of the first cross arm 1, the second cross arm 2, and the third cross arm 3 is provided with an inwardly inclined first groove 17, and inside the first groove 17 there are a plurality of inwardly recessed grooves along the periphery. The second groove 18, one end of the stabilizing bar 4 is provided with the first protruding piece 19 that matches with the first groove 17, and the periphery of the first protruding piece 19 is provided with a plurality of matching with the second groove 18 successively. The second bump 20.

The connecting portion between the first groove 17 and the first protruding block 19 is fixed by a bolt 21 passing through the inside thereof.

When the utility model is used,

The utility model is connected together through the first cross arm 1, the second cross arm 2, and the third cross arm 3, and forms a trapezoidal structure in a fixed form. First, the number of installed insulators can be increased, and second, the second cross arm The first cross arm 1, the second cross arm 2, the third cross arm 3 and the stabilizing rod 4 are tightly connected by the built-in lock, which can form a whole, so that they are interlocked to increase stability, not easy to fall off, and can also withstand Greater weight.

Moreover, when tightly fitting, there is no need to use bolts, screws, etc. to fix, only the first groove 17 and the first protruding block 19, the second groove 18 and the second protruding block 20 need to be matched, and then tightly inserted Together, the installation of the cross arm can be completed, which greatly reduces the operator's work intensity.

Furthermore, when the wires on the insulator are many and heavy, in order to further strengthen its stability, the first groove 17 and the first protruding block 19 can also be connected via bolts 21 .

The connection mode of the first groove 17, the first raised piece 19, the second groove 18, and the second raised piece 20 can be conveniently operated and installed, and no longer need to carry auxiliary tools, because there is no need to carry auxiliary tools when climbing utility poles or iron towers. Dangerous, it is very inconvenient to construct at a high place, and when fixing, only one hoop is needed to be fixed on the first cross arm 1, and there is no need to bind hoops for each cross arm, reducing the cost Quantity is used, and the stability is also very strong.

The traditional hoop is two opposite arc-shaped hoops connected together by screws, fixed on the utility pole, and the outside of the hoop is connected with a cross arm to install cables and the like. It is used to fix on the utility pole. When the cable is heavy, especially some high-voltage cables outdoors, its quality is heavy and the quantity is large. It is often difficult for the hoop to bear the pressure brought by it. After a period of time, The hoop will fall off or be damaged, and the hoop is generally fixed on the top of the utility pole or signal tower. It is a high-altitude operation. Whether it is installation or maintenance, two people are required to operate together, and it is not easy to fix.

The hoop of the utility model is two hoops aligned up and down, which can increase the stability of the hoop. When the hoop is installed, there will be no looseness and shaking. The gravity is used to carry heavier weight, so that a larger number and weight of cables can be installed.

The hoop does not need to be fixed with screws when it is fixed, because the utility pole is cylindrical and fixed with screws cannot really fix the hoop. The friction between the hoop and the pole is small, so the stability of the traditional hoop Not strong.

When the utility model is installing the hoops, an operator takes the hoops, clamps the two hoops to the utility pole, and then pulls the cylindrical rod 13. With the stretching force of the spring 12, the cylindrical rod 13 is stuck on the arc hook 10. Inside, and the size of spring 12 telescopic force is determined by the distance between two hoops and the diameter of utility pole, after cylinder bar card 13 is in radian hook 10, just can be fixed on hoop on utility pole.

In order to better fix the hoop, press the handle 15 outward, the handle 15 drives the cam post 14, and the cam post 14 is tightly against the arc plate 11, so that the cylindrical rod 13 is firmly stuck in the arc hook 10, and the cam post 14 sets On the outside of the cylindrical rod 13, but not concentric with the cylindrical rod 13, a cam structure is formed, so that when the handle 15 is pressed, the end of the larger diameter of the cam post 14 will be against the arc plate 11, and the cylindrical rod 13 is completed. Fixed, compared with screws, this connection method is more tightly fixed, one person can complete the operation and maintenance, and it is easy to install, no need to wear auxiliary tools, and it is also very convenient to disassemble, which greatly facilitates the operation of the staff.

The utility model has an ingenious structure, multiple cross-arms can be fixed by using one hoop, and multiple insulators can be installed to increase the number of installation wires, the operator can install it conveniently, reduce the danger of the operator working at high altitude, and the hoop is easy to use, Not easy to fall off.

Claims (4)

1. null1. the cross-arm installed on utility poles，Including the first cross-arm (1)，It is characterized in that，Parallel the second cross-arm (2) and the 3rd cross-arm (3) it is respectively equipped with above and below first cross-arm (1)，First cross-arm (1)、Second cross-arm (2)、3rd cross-arm (3) changes from small to big from top to bottom successively，First cross-arm (1)、Second cross-arm (2)、The both sides of the 3rd cross-arm (3) connect through firm bar (4)，Constitute the first cross-arm (1)、Second cross-arm (2)、3rd cross-arm (3) forms trapezoidal structure，First cross-arm (1)、Second cross-arm (2)、3rd cross-arm (3) and firm bar (4) are closely connected through built-in lock button respectively，First cross-arm (1)、Second cross-arm (2)、3rd cross-arm (3) is provided with the installing hole (5) of multiple installation insulator，First cross-arm (1) is connected ring (6) and is connected to anchor ear (7)，Anchor ear (7) includes two semicircle anchor ears (8) of consistency from top to bottom，Connect through multiple connecting rods (9) between two semicircle anchor ears (8)，One end of semicircle anchor ear (8) is connected to bandy radian hook (10)，The radian plate (11) connecting two semicircle anchor ears (8) it is provided with between radian hook (10)，The other end of semicircle anchor ear (8) is connected to the cylindrical bar (13) corresponding with radian hook (10) through spring (12)，The middle part of cylindrical bar (13) is cased with the cam post (14) misaligned with its center，Cam post (14) is provided with handle (15)，Constitute and stretch cylindrical bar (13) through spring (12)，Cylindrical bar (13) is made to be stuck in radian hook (10)，And outwards press handle (15)，Cam post (14) props up the structure of radian plate (10).
2. 2. a kind of cross-arm installed on utility poles according to claim 1, it is characterised in that between described the first cross-arm (1) and the second cross-arm (2), be equipped with multiple fixed mount (16) between the second cross-arm (2) and the 3rd cross-arm (3).
3. 3. a kind of cross-arm installed on utility poles according to claim 1, it is characterized in that, described the first cross-arm (1), the second cross-arm (2), the 3rd cross-arm (3) side be provided with intilted first groove (17), peripherally multiple the second grooves (18) caved inward successively in first groove (17), one end of firm bar (4) is provided with the first protruding block (19) mated with the first groove (17), and outer the placing of the first protruding block (19) is sequentially provided with multiple the second protruding block (20) mated with the second groove (18).
4. 4. a kind of cross-arm installed on utility poles according to claim 3, it is characterised in that described the first groove (17) is fixing through the bolt (21) internal through it with the connecting portion of the first protruding block (19).