CN201273134Y

CN201273134Y - Novel ladder used for high-voltage circuit-breaker maintenance

Info

Publication number: CN201273134Y
Application number: CNU2008201476833U
Authority: CN
Inventors: 张秉俊; 刘德勇; 送光辉
Original assignee: Fuyang Power Supply Co of State Grid Anhui Electric Power Co Ltd
Current assignee: State Grid Anhui Electric Power Co Ltd; Fuyang Power Supply Co of State Grid Anhui Electric Power Co Ltd
Priority date: 2008-06-27
Filing date: 2008-06-27
Publication date: 2009-07-15
Anticipated expiration: 2018-06-27

Abstract

A novel ladder for maintaining high voltage circuit breakers is a climbing facility for the maintenance on high voltage circuit breakers of power equipment, which is composed of an insulation ladder and a base, wherein the insulation ladder is provided with a pedal capable of turning over and a safety belt buckle; the lower end of the insulation ladder is provided with a polygon pin which can automatically return via manual drawing and a movable reinforced support; the base can fix the ladder at different positions easily; and the base is composed of polygon pin holes, cylinder pins, a metal support, clamp plates and bolts. The novel ladder has simple structure, simple transportation and storage, and reliable application, on which workers can climb to main high voltage circuit breakers on-site. The novel ladder can confirm the safety of maintainers in normal operation and effectively prevent falling accident.

Description

A kind of novel ladder that is used for the repairing high-voltage breaker operation

Technical field:

The utility model belongs to maintenance power equipment ascend operation facility technology field, relates in particular to the novel ladder of a kind of power equipment primary cut-out novel ladder.

Technical background:

In power equipment repairing high-voltage breaker operation process, the major accident of the casualties that happens occasionally is arranged during because porcelain knob ruptures.Therefore, State Grid Corporation of China sternly forbids when the electric power apparatus examination operation, the climbing porcelain insulator, and to produce [2004] No. 222 documentation requirements of peace: " conscientiously study and define P.P's measure; solve the maintainer in overhaul, the method for cleaning, disappearing and climbing porcelain vase and hanging safety belt when lacking ", and " State Grid Corporation of China's electric power safety working regulation " 13.6 regulation safety belts must not high hang and be of use, forbid be hang over move or unstable object on.During therefore domestic maintenance power equipment, can only be by crane or console mode inspection platform, the former exist space, required place big, use loaded down with trivial detailsly, time-consuming, the latter exists and moves difficulty, and is difficult near maintenance position, poor safety performance.

Summary of the invention:

The utility model is in order to solve when the repairing high-voltage breaker operation, and personnel climb porcelain insulator and safety belt is the extension problem, provides a kind of and can guarantee personal safety, reduces labour intensity, increases work efficiency, and improves the novel ladder of the repair quality of equipment.

The utility model solves its technical problem scheme: a kind of novel ladder that is used for the repairing high-voltage breaker operation, it is supported by Insulation ladder, reinforcement and base constitutes, it is characterized in that, Insulation ladder by ladder and can the two sides pedal of upset constitute, the lower end is provided with rotary reinforcement and supports, and base is made of fixing clamping plate and metal plate.On the ladder that insulation materials is made, foot rest is set, pedal is provided with diagonal brace and spacing stop, track by down in the ladder shelves both sides, can pack up or keep pedal to be in level, pedal can overturn to another side as required, personnel stand in operation on the pedal about ladder, needn't climb porcelain insulator; The ladder bottom links to each other with the straight pin that usefulness is supported in the reinforcement of ladder, strengthens supporting the bottom and links to each other with base with straight pin, and two ends all can be rotated; The ladder lower end is provided with and pulls many ribs pin that automatically resets, and many ribs pin inserts the pin-and-hole on the base, is used for reducing because of rocking that the accumulation of rotating shaft gap causes; Ladder, reinforcement are supported, base, constitute stable straight triangle; Keeping can also passing through shirtsleeve operation under the motionless situation of base, the upkeep operation of line breaker adjacent interruptions is carried out in the upright position of conversion ladder in the opposite direction; For preventing that personal height from falling, the ladder top installs buckle for safety belts additional.

Above-mentioned base is to be welded into an integral body by metal plate, many ribs pin-and-hole seat of stablizing ladder, the cylinder pin hole seat that connects the reinforcement support, train wheel bridge etc., is fixed on the line breaker framework by screw rod with lower plate, does not need to enlarge specially space for maintenance; Install an accessory case at the clear position of metal plate, be used for collecting annex.

One end of above-mentioned clamping plate is opened a slotted hole, and the other end bores row's circular hole, for selecting for use on the line breaker framework of different size; Make the teeth groove shape around the slotted hole, with the pad interlock that has teeth groove, and the anti-sliding stop of tie down screw.

The above-mentioned many ribs pin that automatically resets that pulls is made of back-moving spring, shell, pin, handle, and pin has the corner angle more than three.

For alleviating base weight, fabrication hole can be set on base plane.

The beneficial effects of the utility model have provided a kind of novel ladder that is used for the repairing high-voltage breaker operation, at the alternate firm banking of line breaker, through the simple position conversion, can carry out the service work of two adjacent fractures, the personnel of having solved climb porcelain vase and be the hanging safety belt problem, the safety when ensureing maintainer's normal operation, and easy to use simple to operate, improve efficiency simultaneously, saved cost of production.

Description of drawings

Accompanying drawing 1 is a structural representation of the present utility model.

Accompanying drawing 2 is base schematic diagrames of the present utility model.

Accompanying drawing 3 is clamping plate schematic diagrames of the present utility model.

Accompanying drawing 4 is many ribs pin sectional drawings that automatically reset.

Accompanying drawing 5 is that the utility model uses schematic diagram.

Accompanying drawing 6 is the utility model application example schematic diagrames

In accompanying

drawing

1,1, buckle for safety belts, 2, two-sided pedal, 3, the pedal diagonal brace, 4, rotating shaft, 5, pull many ribs pin that automatically resets, 6, strengthen supporting, 7, straight pin, 8, two-sided pedal shaft, 9, step, 10, the ladder shelves, 11, track, 12, spacing stop.

In accompanying

drawing

2,13, have a slotted hole of teeth groove, 14, have a pad of teeth groove, 15, nut, 16, screw rod, 17, go up lower plate (train wheel bridge is identical with the lower plate shape), 18, many ribs pin-and-hole, 19, many ribs pin-and-hole, 20, cylinder pin hole, 21, accessory case.

In accompanying drawing 3,22, teeth groove, 23, slotted hole, 24, circular hole.

In accompanying

drawing

4,25, pin, 26, back-moving spring, 27, handle, 28, outer casing screw,

In accompanying

drawing

5,1, buckle for safety belts, 2, two-sided pedal, 3, pedal diagonal brace, 7, straight pin, 5, pull many ribs pin that automatically resets, 6, strengthen to support 16, screw rod, 24, circular hole, 21, accessory case, 18, many ribs pin-and-hole, 20, cylinder pin hole, 17, go up lower plate, 23, slotted hole, 14, have a pad of teeth groove, 15, nut.

In accompanying

drawing

6,2, two-sided pedal, 29, base, 31, circuit breaker porcelain bottle, 16, the line breaker framework, 15, screw rod, 6, nut, 14, have a pad of teeth groove, 17, go up lower plate.

The specific embodiment:

In accompanying drawing 1, optional ladder shelves (10) on the ladder that insulation materials is made, down track (11) in the ladder shelves both sides, two-sided pedal (2) slides in track (11), two-sided pedal (2) links to each other with step (9) by two-sided pedal shaft (8) with pedal diagonal brace (3), two-sided pedal shaft (8) both sides are provided with spacing stop (12), keep two-sided pedal (2) to be in level, and two-sided as required pedal (2) can overturn to another side; The bottom of ladder is provided with to connect strengthens supporting (6), and the upper end of strengthening supporting is provided with rotating shaft (4), and the lower end of ladder is provided with and pulls the many ribs pin (5) that automatically resets, and the lower end of base is provided with straight pin (7).

In accompanying drawing 2, four of the plane angle symmetries are welded with many ribs pin-and-hole (18) of fixed ladder on the metal plate, on the metal plate in the middle of the plane both sides be welded with to connect and strengthen the cylinder pin hole (20) that supports; Be welded with the last lower plate (17) that firm banking is used below the metal plate; The slotted hole of last lower plate and the corresponding installation of row's circular hole are fixed on the framework of line breaker by 4 screw rods (16), and accessory case (21) is used for annexes such as folding and unfolding bolt, is installed in the clear position of metal plate;

In accompanying drawing 3, last lower plate shape is identical, and slotted hole (23) and row's circular hole (24) are used for adjusting the span of both sides bolt, be applicable to the line breaker framework of different size, slotted hole (23) plane is all around made teeth groove (22), with the pad interlock that has teeth groove, prevents that screw rod from sliding in slotted hole.

In accompanying drawing 4, many ribs pin of fixed ladder, by back-moving spring (26), pin (25), handle and outer casing screw constitute, and pin (25) has a plurality of corner angle, and outer casing screw (28) is screwed in the screw of ladder bottom, holding handle can pack up pin (25), release handle (27) back-moving spring (26) ejects pin (25), inserts fixed ladder in the pin-and-hole, and many ribs pin (25) can reduce the ladder that causes because of the accumulation of rotating shaft gap and rock.

In accompanying drawing 5, base cylinder pin hole (20) supports (6) lower end with reinforcement and is connected with straight pin, and making reinforcement support (6) two ends can rotate; Both sides, ladder bottom are provided with and pull the many ribs pin (5) that automatically resets, pulling the many ribs pin (5) that automatically resets inserts in the pin-and-hole of corresponding base both sides, to reduce because of rocking that the accumulation of rotating part gap causes, ladder, strengthen to support (6), base plane, straight triangle that formation is stable, stand in when the maintainer works on the two-sided pedal (2) on the extended line of right-angle side.

In accompanying drawing 5, keeping can also passing through shirtsleeve operation under the motionless situation of base, the service work of line breaker adjacent interruptions is carried out in the upright position of conversion ladder in the opposite direction;

In the example shown in the accompanying drawing 6: base (29) is placed on the framework (31) between adjacent two fractures of primary cut-out, screw rod (16) inserts respectively in lower plate (17) the corresponding slotted hole and circular hole, make the pad (14) that has teeth groove identical, screw on nut (6) and tighten with the teeth groove on the last lower plate (17).

Earlier base is lain on the line breaker framework during use, according to the width of primary cut-out framework, select corresponding slotted hole and circular hole, teeth groove pad on slotted hole place pad inserts four bolts and tightens, with the base fixation; Be connected with straight pin by pulling many ribs pin, ladder is installed on the base.In the process on probation, the people stands on the pedal, and safety belt can be to hang on the clasp on ladder top.

Claims

1, a kind of novel ladder that is used for the repairing high-voltage breaker operation, it is by Insulation ladder, strengthen supporting and the base formation, it is characterized in that, Insulation ladder by ladder and can the two sides pedal of upset constitute, the lower end is provided with rotary reinforcement and supports, base is made of fixing clamping plate and metal plate, on the ladder that insulation materials is made, foot rest is set, pedal is provided with diagonal brace and spacing stop, by the track of down in the ladder shelves both sides, can pack up or keep pedal to be in level, the ladder bottom links to each other with the straight pin that usefulness is supported in the reinforcement of ladder, strengthen supporting the bottom and link to each other with base with straight pin, two ends all can be rotated; The ladder lower end is provided with and pulls many ribs pin that automatically resets, and many ribs pin inserts the pin-and-hole on the base; Ladder, reinforcement are supported, base, constitute stable straight triangle.

2, a kind of novel ladder that is used for the repairing high-voltage breaker operation according to claim 1, it is characterized in that base is welded into an integral body by metal plate, many ribs pin-and-hole seat of stablizing ladder, the cylinder pin hole seat that connects the reinforcement support, train wheel bridge etc., is fixed on the line breaker framework by screw rod with lower plate; Install an accessory case at the clear position of metal plate, be used for collecting annex.

3, a kind of novel ladder that is used for the repairing high-voltage breaker operation according to claim 1 is characterized in that an end of clamping plate is opened a slotted hole, and the other end bores row's circular hole, for selecting for use on the line breaker framework of different size; Make the teeth groove shape around the slotted hole, with the pad interlock that has teeth groove, and the anti-sliding stop of tie down screw.

4, a kind of novel ladder that is used for the repairing high-voltage breaker operation according to claim 1 is characterized in that pulling many ribs pin that automatically resets, and is made of back-moving spring, shell, pin, handle, and pin has the corner angle more than three.