CN213402394U

CN213402394U - Assembled electric pole bridge frame

Info

Publication number: CN213402394U
Application number: CN202022048601.3U
Authority: CN
Inventors: 韦国成; 陆川; 廖斌; 覃坚; 欧建文; 王宾; 刘子威; 黄珑; 林立裕
Original assignee: Guangxi Zhengyuan Electric Power Engineering Construction Supervision Co ltd; Nanning Binyang Power Supply Bureau Guangxi Power Grid Co ltd; Guangxi Power Line Equipment And Fitting Factory Co ltd
Current assignee: Guangxi Zhengyuan Electric Power Engineering Construction Supervision Co ltd; Nanning Binyang Power Supply Bureau Guangxi Power Grid Co ltd; Guangxi Power Line Equipment And Fitting Factory Co ltd
Priority date: 2020-09-18
Filing date: 2020-09-18
Publication date: 2021-06-08
Anticipated expiration: 2030-09-18

Abstract

The assembled electric pole bridge is fixed on a channel from a low-voltage line to a power distribution cabinet, the bridge is integrally L-shaped and comprises a plurality of sections of square tubes, a plurality of wire clamps are arranged on the square tubes, and cables are fixed on the wire clamps. The utility model is used for connecting and fixing the cables between the electric power equipment on the electric pole, and has the advantages of aging resistance, high structural rigidity, simple and convenient installation and construction process, installation time saving and dark turning working strength reduction; from the perspective of the electricity customers, the power-off maintenance time can be reduced, and the satisfaction degree of the electricity consumers is improved.

Description

Assembled electric pole bridge frame

Technical Field

The utility model relates to an electric power engineering technical field specifically is an assembled pole crane span structure.

Background

In outdoor electric power engineering facilities, electric power devices such as a power distribution cabinet, a transformer and a fuse are usually arranged on electric poles and fixed at a high position, two electric poles with close distances are usually connected and fixed through a horizontal table arm or a cross arm, equipment such as the power distribution cabinet and the transformer are fixed on the table arm or the cross arm, and the electric power devices are connected through a plurality of high-voltage and low-voltage cables.

Generally, the connecting cable laid on the electric pole is fixed through the bridge, the bridge hoop is installed on the cement electric pole, accessories are installed on the hoop to form a plurality of fixed fulcrums, the bridge made of glass fiber reinforced plastics is sequentially installed along the fulcrums, after the bridge installation construction is completed, the cable is laid and connected along a cable path formed by the bridge, the anchoring part is used for fixing the cable and the bridge, and finally the installation or replacement of the cable is completed.

However, the existing bridge still has the following disadvantages:

1. the existing bridge frame is made of glass fiber reinforced plastic (also called fiber reinforced plastic), which is a reinforced plastic using glass fiber reinforced unsaturated polyester, epoxy resin and phenolic resin matrix as well as glass fiber or its product as reinforcing material, and is called glass fiber reinforced plastic (glass fiber reinforced plastic), or called glass fiber reinforced plastic (glass fiber reinforced plastic). Under the influence of outdoor severe weather, the glass fiber reinforced plastic bridge frame repeatedly shrinks due to cold and heat, so that the structure is aged and deformed, and finally the bridge frame is failed.

2. The existing bridge frame has complex structure, a plurality of accessories and fixing pieces, long time consumption in the installation process and large work time consumption.

3. The whole-course power-off operation is required during bridge installation, and in the construction process of the conventional bridge, an installer needs to be in high-altitude position operation for a long time to fix the accessories one by one and fix the cable.

Disclosure of Invention

The utility model provides an assembled electric pole bridge, which is used for connecting and fixing cables between electric equipment on an electric pole, and has the advantages of aging resistance, high structural rigidity, simple and convenient installation and construction process, installation time saving and dark turning working strength reduction; from the perspective of the electricity customers, the power-off maintenance time can be reduced, and the satisfaction degree of the electricity consumers is improved.

In order to achieve the above purpose, the technical scheme of the utility model is as follows:

assembled pole crane span structure, its characterized in that: the cable bridge is fixed on a channel from a low-voltage line to a power distribution cabinet, the cable bridge is integrally L-shaped and comprises a plurality of sections of square tubes, a plurality of wire clamps are arranged on the square tubes, and cables are fixed on the wire clamps.

The square tube comprises a vertical square tube A section, a vertical square tube B section and a transverse square tube; the vertical square tube A segment is connected with the vertical square tube B segment through a yoke plate, and the vertical square tube B segment is connected with the transverse square tube in a welding mode. The lower part of the yoke plate is fixed with the B segment of the vertical square tube by welding, and the upper part of the yoke plate is fixed with the A segment of the vertical square tube by bolt connection; a triangular reinforcing plate is arranged at the right-angle joint of the B segment of the vertical square tube and the transverse square tube for reinforcing and positioning.

The anchor ear B is arranged on the vertical square tube A section or the vertical square tube B section, two ends of the anchor ear B are connected with the middle part of the support through bolts, and two ends of the support are connected with the cross arm or the table arm through bolts. The staple bolt B and the fixed knot that the support formed construct, realize fixed connection with vertical square pipe and cross arm or platform arm, generally respectively on transformer platform arm, arrester cross arm and fuse cross arm, respectively set up a set of fixed knot structure, fix square pipe on the axis of pole.

Set up fixed connection point and swing joint point on square pipe for connect the fastener:

in the fixed connection point: the square pipe is provided with a plurality of connecting lugs, the connecting lugs are welded on two sides of the square pipe, and two sides of the wire clamp are fixedly connected with the connecting lugs through bolts.

In the movable connection point: the square tube is provided with a plurality of anchor ears A, and the two sides of the anchor ears A are connected with the wire clamp through bolts and tightly clamp the square tube.

The wire clamp is made of a bakelite plate material.

The mounting construction method of the assembled electric pole bridge frame comprises the following steps:

(1) assembling a vertical square tube A section, a vertical square tube B section and a transverse square tube on the ground;

(2) connecting connectors such as the hoop A, the hoop B, the bracket, the wire clamp and the like with the square pipe on the ground;

(3) fixing the cable and the cable clamp on the ground;

(4) after the power grid is cut off, hoisting and placing the whole assembled bridge frame to a specified position, and connecting the whole bridge frame with the cross arm and the platform arm;

(5) and (4) respectively connecting the two ends of the cable with the distribution box and the low-voltage line, and recovering the electrification to complete the construction of the bridge frame.

The utility model has the advantages that:

1. the utility model discloses bulk strength and rigidity are higher than traditional glass steel bridge frame, and crane span structure durable, non-deformable is ageing.

2. The utility model discloses can realize that crane span structure and cable are whole to be assembled and accomplish on ground, only lift by crane at last and cross arm or the platform arm fixed connection of pole, avoid installer to be located the high altitude for a long time and carry out cable fixed mounting, improve work efficiency, realize safe construction; the power failure process is greatly shortened, and the power failure duration is guaranteed.

Description of the drawings:

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of a connection and disassembly of a fixed connection point of a square tube;

FIG. 3 is a schematic view of a connection structure of a fixed connection point of a square tube;

FIG. 4 is a schematic view of a connection and disassembly of a movable connection point of a square tube;

FIG. 5 is a schematic view of a connection structure of a square tube movable connection point;

FIG. 6 is an exploded view of the connection between the square tube and the cross arm or the table arm;

FIG. 7 is a schematic view of a connection structure of a square tube and a cross arm or a table arm;

FIG. 8 is a schematic view of a connection structure of segments of a square tube;

FIG. 9 is a schematic view of a connection structure of segments of a square tube;

the number designations in the figures are: 1. a power distribution cabinet; 2. a transformer; 3. a cable; 41. a transformer platform load; 42. a lightning arrester cross arm; 43. a fuse cross arm; 51. a vertical square tube A section; 52. a vertical square tube B segment; 53. a transverse square tube; 61. a yoke plate; 62. connecting lugs; 63. a hoop A; 64. a hoop B; 65. a support; 66. a triangular reinforcing plate; 7. and (4) wire clamping.

Detailed Description

Example 1

The assembled electric pole bridge is fixed on a channel from a low-voltage line to the power distribution cabinet 1, the bridge is integrally L-shaped and comprises a plurality of sections of square tubes, a plurality of wire clamps 7 are arranged on the square tubes, and the cables 3 are fixed on the wire clamps 7.

The square tube comprises a vertical square tube A section 51, a vertical square tube B section 52 and a transverse square tube 53; the vertical square tube A segment 51 is connected with the vertical square tube B segment 52 through a connecting plate 61, and the vertical square tube B segment 52 is connected with the transverse square tube 53 in a welding mode.

The anchor ear B64 is arranged on the vertical square tube A section 51 or the vertical square tube B section 52, two ends of the anchor ear B64 are connected with the middle part of the bracket 65 through bolts, and two ends of the bracket 65 are connected with the cross arm or the platform arm through bolts.

Set up many places engaging lug 62 on square pipe, the engaging lug 62 welding is in square pipe both sides, and fastener 7 both sides pass through bolt and engaging lug 62 fixed connection.

The square pipe is provided with a plurality of anchor ears A63, and the two sides of the anchor ear A63 are connected with the wire clamp 7 through bolts and clamp the square pipe.

(3) fixing the cable and the cable clamp on the ground;

Application examples

Through investigation on the condition of replacing the whole rack in a power failure platform area in 2019 years, the fact that although the traditional glass fiber reinforced plastic bridge cannot achieve process improvement is found, through full discussion of team members, once the assembly type bridge is achieved and can be achieved on the ground (assembly + lead installation), the construction time is necessarily greatly optimized and reduced, and a target value is determined through the following calculation:

(1) the total construction time of the rack part is as follows: x, assuming that the rack installation time is a, the transformer installation time is b, the matched hardware equipment installation time is c, the bridge installation time is d, and the lead installation time is e.

(2) The assumption is that two procedures (bridge frame installation and lead installation) of bridge frame installation and lead installation are constructed in sequence:

the method comprises the steps of starting, installing a bench, installing a transformer, installing a hardware fitting of matched equipment, installing a bridge, installing a lead and finishing

Then total elapsed time X = a + b + c + d + e

When using novel assembled bridge, but when synchronous construction, the construction process becomes order + synchronous construction by the order:

the process comprises the steps of starting, rack installation, transformer installation, bridge installation, hardware fitting of corollary equipment and lead installation

Then total elapsed time X = a + b + (c + d + e)/3

Note: x-total construction time of the rack part; a-time consumption of rack installation;

b, time consumption for transformer installation; c, time consumption for installing matched hardware equipment;

e-time consumption for wire installation;

(3) according to the process execution situation, the target value of the current activity is set as follows: the time consumption for installing the rack is shortened by 30 percent or more.

Claims

1. Assembled pole crane span structure, its characterized in that: the cable bridge is fixed on a channel arranged from a low-voltage line to the power distribution cabinet (1), the cable bridge is integrally L-shaped and comprises a plurality of sections of square tubes, the square tubes are provided with a plurality of cable clamps (7), and the cables (3) are fixed on the cable clamps (7).

2. The fabricated mast bridge of claim 1, wherein: the square tube comprises a vertical square tube A section (51), a vertical square tube B section (52) and a transverse square tube (53); the vertical square tube A segment (51) is connected with the vertical square tube B segment (52) through a connecting plate (61), and the vertical square tube B segment (52) is connected with the transverse square tube (53) in a welding mode.

3. The fabricated pole bridge as recited in claim 2, wherein: the anchor ear B (64) is arranged on the vertical square tube A section (51) or the vertical square tube B section (52), two ends of the anchor ear B (64) are connected with the middle part of the bracket (65) through bolts, and two ends of the bracket (65) are connected with the cross arm or the table arm through bolts.

4. The fabricated mast bridge of claim 1, wherein: the square pipe is provided with a plurality of connecting lugs (62), the connecting lugs (62) are welded on two sides of the square pipe, and two sides of the wire clamp (7) are fixedly connected with the connecting lugs (62) through bolts.

5. The fabricated mast bridge of claim 1, wherein: the square tube is provided with a plurality of anchor ears A (63), and the two sides of the anchor ears A (63) are connected with the wire clamp (7) through bolts and clamp the square tube.