CN103174323A - Multifunctional hoisting support frame - Google Patents

Abstract

A multifunctional hoisting bracket installed on a power transmission line tower. Its special feature is that it consists of a horizontal beam and two oblique rods to form an approximately isosceles triangle frame. The upper end of each oblique rod is fixed on the upper and lower ends of the horizontal beam. An approximately semicircular hoop with assembly holes on it, a limit plate is installed on the hoop, a hook is installed on the outer surface of the hoop, and fixed pulleys are respectively installed at both ends of the beam. Since the multi-functional hoisting bracket is installed on the top of the pole tower, the operator is avoided, the working space of the operator is increased, and it is convenient for hoisting heavier and longer fittings. The multi-functional hoisting bracket adopts the design of pulleys on both sides, so that the object to be lifted is stressed at two points, which reduces the labor intensity of the operators. The multifunctional hoisting bracket has a simple structure, is convenient to use, saves manpower and material resources, and improves work efficiency.

Description

Multi-functional lifting bracket

technical field

The invention belongs to the technical field of power distribution line construction, in particular to a hoisting bracket used for installing fittings on power poles and towers and transmitting power materials.

Background technique

In 2007, Panjin Power Supply Company introduced Yan-wing cross-arms, synthetic insulators and other new power materials and equipment, and used them in large quantities in the equipment. Using the original equipment to install Yan-wing cross-arms was time-consuming and laborious.

Contents of the invention

In order to solve the problem that the power system is faced with the complex and time-consuming installation process of the new swallow-wing cross-arm, the following technical solutions are proposed.

A multifunctional hoisting bracket installed on a power transmission line tower. Its special feature is that it consists of a horizontal beam and two oblique rods to form an approximately isosceles triangle frame. The upper end of each oblique rod is fixed on the upper and lower ends of the horizontal beam. An approximate semicircular hoop with assembly holes is arranged on it, a limit plate is installed on the hoop, a hook is installed on the outer surface of the hoop, and fixed pulleys are respectively installed at both ends of the beam. The height of the hoop is 200MM.

In order to facilitate the installation of the multi-functional hoisting bracket on the top of the power tower, the beam is changed into a telescopic structure, that is, the beam is composed of a middle beam and two side beams, and there are two rectangular holes on the middle beam, and each side beam There are through holes, the middle beam and the two side beams are overlapped and connected with bolts, fixed pulleys are installed on the free ends of each side beam, and the upper ends of each diagonal bar are respectively fixed on the side beams.

When using the multifunctional hoisting bracket to hoist materials, it is first installed on the top of the concrete pole or wooden pole tower, and the materials are simultaneously lifted by two pulleys, so that the force of the lifted objects is balanced. Use this multifunctional hoisting bracket to hoist any large hardware and materials that need to be installed on the tower.

The present invention has the following advantages

Since the multi-functional hoisting bracket is installed on the top of the pole tower, the operator is avoided, the working space of the operator is increased, and it is convenient for hoisting heavier and longer fittings. At the same time, the hoop height of the multi-function hoisting bracket, that is, the distance between the bottom surface of the hoop and the top of the tower is 200MM, which just meets the distance requirements between the cross arm of the tower and the top of the tower specified in the power installation process regulations, and completely avoids the installation position of the accessory hardware of the tower. . The multi-functional hoisting bracket adopts the design of pulleys on both sides, which avoids the problems of unbalanced force and difficult disassembly caused by binding the object at one point when a single pulley is usually used for transmission, and reduces the labor intensity of operators. Two hooks are installed on the outer side of the hoop of the multifunctional hoisting bracket, which is convenient for placing temporarily dismantled conductors on the hooks when replacing cross arms or insulators. The multifunctional hoisting bracket has a simple structure, is convenient to use, saves manpower and material resources, and improves work efficiency.

Description of drawings

Fig. 1 is a schematic structural view of embodiment 1, Fig. 2 is a partially enlarged view A, Fig. 3 is a schematic structural view of embodiment 2, Fig. 4 is a front view of the middle beam 6.2 in embodiment 2, and Fig. 5 is an embodiment 2 top view of the intermediate beam 6.2.

Detailed ways

Example 1

A multifunctional hoisting bracket installed on a power transmission line tower, which is composed of a horizontal beam 6 and two oblique rods 7 to form an approximately isosceles triangle frame, and the upper end of each oblique rod 7 is welded to the upper and lower ends of the horizontal beam 6 The hoop 3 is approximately semicircular, and the two ends of the hoop 3 are bent outwards to form an assembly part on which an assembly hole 3.1 is provided. Horizontal spacer plate 4 is installed above hoop 3. Hook 1 is installed on the outer surface of hoop 3, and fixed pulley 5 is installed respectively at the two ends of crossbeam 6. The height of hoop 3 is 200MM.

When the multifunctional hoisting bracket is installed on the tower, the limit plate 4 is just stuck on the top of the tower to ensure that the hoop 3 is always on the top of the tower.

When using the multi-functional hoisting bracket, an operator first climbs to the top of the tower, lifts the hoisting bracket to the upper part of the tower with a transfer rope, then sets the hoop 3 of the multi-functional hoisting bracket on the top of the tower, and uses the first bolt 2. Insert it into the assembly hole 3.1 of the hoop 3 and tighten it, and install the multifunctional lifting bracket on the top of the tower. Then pass through ropes respectively in the fixed pulley 5 at support two ends, and one end of the rope is controlled by ground traction personnel, and the other end is tied on the object to be lifted.

Example 2

Since the beam in Embodiment 1 is a whole plate, when the space between the two hoops 3 does not completely coincide with the top of the tower, it will be very difficult to install the multifunctional hoisting bracket and tighten the first bolt 2. Can't even install. Therefore, Example 2 is proposed. It differs from Embodiment 1 in that the crossbeam 6 is changed into a telescopic structure, that is, the crossbeam 6 is composed of a middle crossbeam 6.2 and two side crossbeams 6.1. There are two rectangular holes 6.21 on the middle beam 6.2, and a through hole on the side beam 6.1. The middle beam 6.2 overlaps with the two side beams 6.1, and the second bolt 8 passes through the rectangular holes 6.21 and the two side beams 6.2. The through holes on the side beams 6.1 connect the middle beam 6.2 and the side beams 6.1 into one body. Between middle crossbeam 6.2 and two side crossbeams 6.1, can move relatively along rectangular hole 6.21, promptly the length of crossbeam 6 is adjustable, is convenient to the installation of this multi-function hoisting bracket like this. Fixed pulleys 5 are respectively installed on the free ends of the two side beams 6.1, and inclined rods 7 are respectively welded under the two side beams 6.1.

Before installation, loosen the second bolt 8, so that the middle beam 6.2 and the side beam 6.1 can move relatively. Fix it, and then tighten the second bolt 8 to lock the middle beam 6.2 and the two side beams 6.1.

Claims (2)

1. multi-functional lifting support that is arranged on electric power line pole tower, it is characterized in that it is comprised of horizontal gird and two braces the framework that is similar to isosceles triangle, the upper end of every brace is fixed on the horizontal gird upper and lower end is installed pilot hole on its of approximate half-circular cranse, mounting limit plate above cranse, the external surface of cranse is installed hook, at the two ends of crossbeam, fixed pulley is installed respectively.

2. the said multi-functional lifting support that is arranged on electric power line pole tower according to claim 1, it is characterized in that said crossbeam is comprised of intermediate transverse girder and two side crossbeams, two slots are arranged on intermediate transverse girder, on every side crossbeam, through hole is arranged, intermediate transverse girder mutually overlaps afterwards with two side crossbeams and is connected with bolt, free end at every side crossbeam is installed fixed pulley, and the upper end of every brace is separately fixed on the side crossbeam.

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