CN201981995U - Pole ladder for maintenance of single-column device - Google Patents

Abstract

The utility model discloses a pole-holding ladder for single-column equipment inspection and maintenance, which comprises a telescopic ladder and a foundation ladder; the lower part of the telescopic ladder and the upper part of the foundation ladder are connected and fixed by screws; the telescopic ladder includes an upper retaining ring and a lower retaining ring , a platform, a guide rail and an inclined bracket; the foundation ladder includes an upper elastic clamp, a lower elastic clamp and a support rod. When installing, first fix the foundation ladder and the single-column electric pole of the equipment, and then adjust and fix the telescopic ladder according to the working height. The operator supports the platform with a slanting support, and then climbs up to the platform and wraps the body with two retaining rings for operation. When disassembling, fold the platform and retaining ring and loosen the screws to drop the telescopic ladder to the ground, and then untie the elastic clamp, and the whole pole-holding ladder can be removed from the site. Both the basic ladder and the telescopic ladder of the utility model are made of unsaturated polyester resin and glass fiber, and the upper and lower ends are protected by rubber insulating sleeves, which meet the GB-17620-1998 standard. The advantages of working at heights are safe.

Description

A pole ladder for maintenance of single-column equipment

technical field

The utility model relates to a pole-holding ladder for single-column equipment inspection and maintenance, in particular to a work ladder suitable for climbing a maintenance platform for single-column equipment in substations.

Background technique

Most of the equipment in the substation has a single-column structure layout, especially the transformer equipment is erected on the top of the single-column cement pole. The maintenance work has the following difficulties: 1. The work space affected by the equipment is small. 2. Limited by the operation mode, some buses cannot be powered off. 3. If you use a large maintenance platform or bucket arm truck, there is a danger of electric shock at a high place. The defects of the existing working ladder for climbing and maintenance are: large volume, inconvenient installation, disassembly and transportation, and high-altitude operation cannot guarantee the safety of operators.

Utility model content

The technical problem to be solved by the utility model is to provide a single-column equipment maintenance pole ladder with small size, firm installation, convenient disassembly and transportation, and safety for high-altitude operations.

In order to solve the above technical problems, the technical solution adopted by the utility model is: a single-column equipment maintenance pole ladder, which is characterized in that it includes a telescopic ladder and a foundation ladder; the lower part of the telescopic ladder is connected to the upper part of the foundation ladder through screw connection; the telescopic ladder includes an upper retainer, a lower retainer, a platform, a guide rail and an inclined support; the upper retainer and the lower retainer of the telescopic ladder are "U" rings, and the heads at both ends are respectively The two columns of the telescopic ladder are hinged; the platform is a rectangular flat plate, and the horizontal axis connected to one end surface is hinged with the two columns of the telescopic ladder; the guide rails are a pair of box-type guide rails with openings on the bottom of the platform; The oblique support is an "H" type support with a crossbeam at the bottom, and the crossbeam is respectively hinged with the two columns of the telescopic ladder; the basic ladder includes an upper elastic clamp and a lower elastic clamp; the upper elastic clamp and the The lower elastic clamps are all "U" rings, and the double heads at one end are respectively connected to the two uprights of the foundation ladder with screws, and the fastening bolts are installed at the position between the foundation ladder and the arc top. through holes.

A further improvement of the utility model is that: the basic ladder also includes a support rod; the upper end of the support rod is supported on the bottom surface of the platform, and the lower end of the support rod is clamped on the fastening bolt of the upper elastic clamp.

The beneficial effect produced by adopting the above-mentioned technical solution is: a single-column equipment maintenance pole ladder disclosed by the utility model, because the two elastic clamps of the basic ladder hold the entire pole ladder and the basic electric pole of the equipment tightly, The operator stands on the platform with two protective rings, which ensures the safety of high-altitude operations; avoids the power failure of adjacent interval equipment or busbars; and improves the reliability of power supply.

Description of drawings

Below in conjunction with accompanying drawing and specific embodiment, the utility model is described in further detail.

Fig. 1 is the front view of the utility model;

Fig. 2 is a left side view of Fig. 1 .

As shown in Figure 1 and Figure 2: 1 upper insulating sleeve, 2 upper retaining ring, 3 lower retaining ring, 4 telescopic ladder, 5 connecting screw, 6 foundation ladder, 7 upper elastic clamp, 8 lower elastic clamp, 9 lower Insulation sleeve, 10 platforms, 11 guide rails, 12 inclined brackets, 13 support rods, 14 fastening bolts, 15 equipment poles.

Detailed ways

From the embodiment shown in Fig. 1 and Fig. 2, it can be seen that it includes a telescopic ladder 4 and a foundation ladder 6; the bottom of the telescopic ladder 4 is connected with the top of the foundation ladder 6 by connecting screws 5; the telescopic ladder 4 includes an upper guard Ring 2, lower retaining ring 3, platform 10, guide rail 11 and inclined bracket 12; the upper retaining ring 2 and the lower retaining ring 3 of the telescopic ladder 4 are "U" rings, and the heads at both ends are respectively connected to the telescopic ladder The two columns of 4 are hinged; the platform 10 is a rectangular flat plate, and the horizontal axis connected to one end surface is hinged with the two columns of the telescopic ladder 4; The inclined bracket 12 is an "H" type bracket provided with a crossbeam at the bottom, and the crossbeam is respectively hinged with two columns of the telescopic ladder 4; the basic ladder 6 includes an upper elastic clamp 7 and a lower elastic clamp; The upper elastic clamp 7 and the lower elastic clamp 8 are both "U" rings, and the double heads at one end are respectively connected to the two uprights of the foundation ladder 6 with screws, and the inner surface of the arc is set on the equipment pole 15 On, it is positioned at the position between foundation ladder 6 and arc top and is provided with the through hole that fastening bolt 14 is housed. The foundation ladder 6 also includes a support rod 13 ; the upper end of the support rod 13 is supported on the bottom surface of the platform 10 , and the lower end of the support rod 13 is clamped on the fastening bolt 14 of the upper elastic clip 7 . Since the upper rubber sheath 1 is arranged at the top of the telescopic ladder 4, and the lower rubber sheath 9 is arranged at the bottom of the basic ladder 6, the insulation of the whole pole-holding ladder is guaranteed.

In contrast to Fig. 1 and Fig. 2, the operating steps of the utility model embodiment are further described:

Fixing the foundation ladder: put the inner arc surface of the upper elastic clamp 7 on the electric pole 15 of the single-column equipment, and fix the two ends with screws on the two sides of the foundation ladder 6 column, and then tighten it with the fastening bolt 14 The both sides of elastic clip 7 are firmly connected with the basic electric pole 15 of whole pole ladder and equipment, and the operation of installing lower elastic clip 8 is also the same.

Connect the telescopic ladder: adjust the height of the telescopic ladder 4 according to the needs of the operation, fix the overlapping part of the basic ladder 6 and the telescopic ladder 4 with the connecting screw 5, the operator climbs from the basic ladder 6 to the lower part of the telescopic ladder 4, and lifts the platform 10, Put the double head of inclined support 12 in guide rail 11, press down platform 10, make the double head of inclined support 12 withstand the sealing of guide rail 11 outer end tightly, at this moment platform 10 is firmly positioned at horizontal position. For the sake of safety, the support rod 13 is stuck between the bottom surface of the fastening bolt 14 and the platform 10, and the operator's head stretches into the lower retainer 3 and the upper retainer 2 to stand on the platform 10, fasten the safety belt and start working.

Disassemble the pole-holding ladder: remove the support rod 13, put down the platform 10 and the inclined bracket 12, loosen the connecting screw 5, lower the telescopic ladder 4 to the ground, fix the platform 10, the upper retainer 2 and the lower retainer 3, and then loosen The upper elastic clamp 7 and the lower elastic clamp 8, the whole pole-holding ladder can be moved out of the maintenance site.

Claims (2)

1. a single-column overhaul of the equipments pole ladder is characterized in that: comprise extension ladder (4) and basis ladder (6); The bottom of described extension ladder (4) is connected by attachment screw (5) with the top of basis ladder (6); Described extension ladder (4) comprises guard ring (2), following guard ring (3), platform (10), guide rail (11) and tilted supporter (12); The last guard ring (2) of described extension ladder (4) and following guard ring (3) are " U " type circle, and its two ends portion is hinged with two columns of extension ladder (4) respectively; Described platform (10) is a rectangular flat, and the transverse axis that an one end face connects and two columns of extension ladder (4) are hinged; Described guide rail (11) is a pair of platform bottom surface boxlike guide rail that Open Side Down that is positioned at; Described tilted supporter (12) is provided with " H " type support of crossbeam for the bottom, and described crossbeam is hinged with two columns of extension ladder (4) respectively; Described basis ladder (6) comprises flexible collar (7) and following flexible collar (8); Described upward flexible collar (7) and following flexible collar (8) are " U " type circle, the double head of one end is connected to screw on two root posts of basis ladder (6), and it establishes the through hole that fastening bolt (14) are housed on the position between basis ladder (6) and the dome.

2. a kind of single-column overhaul of the equipments pole ladder according to claim 1 is characterized in that: described basis ladder (6) also comprises support bar (13); Described support bar (13) upper end is supported on the bottom surface of platform (10), and its lower end is stuck on the fastening bolt (14) of flexible collar (7).

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