CN212924155U - Telescopic monorail crane cab ladder - Google Patents

Abstract

The utility model discloses telescopic single track hangs driver's cabin people's ladder, including outer ladder and interior ladder, the upper left end of outer ladder articulates in driver's cabin left side lower extreme, be fixed with the loading board that can overlap joint on the lower extreme frame of driver's cabin front side on the outer crossbeam of outer ladder uppermost end, the left side outside of outer ladder is fixed with the inboard self-locking arm of lower extreme frame that can put into the driver's cabin front side, the left side of interior ladder, the right side inner column can be gliding connection in the left side of outer ladder from top to bottom respectively, the left side of right side outer column, in the right spout, the lower extreme of outer ladder is equipped with stop device, the top of interior ladder be equipped with can with the stop device complex boss of outer ladder, the upper portion of driver's cabin is equipped with the pulley, stay cord one end is fixed in the interior rings of inner ladder lower extreme. The utility model discloses retractable monorail crane driver's cabin ladder of people uses safe convenience, stable in structure, and its length can be adjusted and is applicable to the not tunnel of co-altitude.

Description

Telescopic monorail crane cab ladder

Technical Field

The utility model relates to a mining machinery especially relates to a people's ladder that is used for single track to hang driver's cabin.

Background

The single track that uses in colliery hangs driver's cabin people's ladder at present is unilateral people's ladder, as shown in fig. 4, includes left side stand 7 and the crossbeam 8 of welding on the left side stand of upper and lower equipartition. The upper end left side of unilateral people's ladder articulates in the left lower extreme that single track hung driver's cabin 5, and after the staff got into driver's cabin 5 through unilateral people's ladder, need bend down to draw up the unilateral people's ladder with the hand, then go into the inboard of 5 lower extreme frames 50 of driver's cabin 5 inboard card in the left side stand outside cardboard 9 of unilateral people's ladder. When the staff leaves the cab 5, the single-side ladder is lifted up and then slowly lowered by hands, and after the single-side ladder is lowered, the hinge shaft close to the upper left end of the single-side ladder is used for supporting, so that the staff shakes greatly up and down, and the stability is very poor. The use process of the whole unilateral manned ladder is very inconvenient, the time for workers to get on or off the cab 5 is increased, and meanwhile, certain dangerousness exists. And the total length of the unilateral ladder is 1.5m, and the requirements of the fluctuant roadways with different heights on the height of the ladder cannot be met.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a retractable monorail crane driver's cabin ladder safe in utilization convenience, stable in structure and adjustable length.

The telescopic single-rail-suspended cab ladder comprises an outer ladder and an inner ladder, wherein the upper left end of the outer ladder is hinged with the lower left end of a cab, the outer ladder comprises two parallel left and right outer vertical columns and a plurality of outer cross beams which are vertically and uniformly distributed and connected between the left and right outer vertical columns, a bearing plate which can be lapped on the lower end frame at the front side of the cab is fixed on the outer cross beam at the uppermost end of the outer ladder, a self-locking arm which can be placed in the inner side of the lower end frame at the front side of the cab is fixed on the left outer side of the outer ladder, the inner ladder comprises two parallel left and right inner vertical columns and a plurality of inner cross beams which are vertically and uniformly distributed and connected between the left and right inner vertical columns, the left and right inner vertical columns of the inner ladder are respectively connected in the left and right chutes of the left and right outer vertical columns of the outer ladder in a vertical sliding manner, the lower end of the outer ladder is provided with a limiting device, the uppermost end of the inner ladder is provided with a, the upper portion of driver's cabin is equipped with the pulley, and the one end of stay cord is fixed in on the interior rings of the outer side in the right side of inner ladder lower extreme, the other end of stay cord is walked around in the pulley after-fixing is in the driver's cabin, the right side of outer ladder is equipped with the tongs.

The utility model discloses telescopic single track hangs driver's cabin people's ladder, wherein the left and right outer column of outer ladder is the inside U-shaped body of opening, the opening of the U-shaped body of left and right outer column is left and right spout respectively, the outer beam welds in the trailing flank of left and right outer column, stop device is the limiting plate of welding in left and right outer column leading flank below, the left and right inner column and the inner beam of inner ladder are circular steel pipe, the boss of inner ladder is for welding in the steel pipe of the inner beam front side of the uppermost end of inner ladder, the boss is located directly over the limiting plate.

When the telescopic monorail crane cab ladder is used, the bearing plate at the uppermost end of the outer ladder is lapped on the lower end frame at the front side of the cab, so that the structure of the telescopic monorail crane cab ladder is safer and more stable; the inner ladder automatically slides to the ground along the sliding groove of the outer ladder, so that the length of the ladder can be adjusted to meet the requirements of roadways with different heights. When the people ladder is recovered, the inner ladder is effectively retracted into the outer ladder and recovered to the outside of the cab through the pull rope hung on the pulley. The utility model discloses retractable monorail crane driver's cabin people's ladder uses safe convenience, stable in structure, and its length can be adjusted and is applicable to the not tunnel of co-altitude.

The embodiment of the retractable monorail crane cab ladder of the invention is further explained with reference to the attached drawings.

Drawings

FIG. 1 is a front view of the telescopic monorail crane cab of the present invention when the man ladder is extended to the maximum length;

FIG. 2 is a top view of FIG. 1;

FIG. 3 is a schematic view of the telescopic monorail crane cab with the ladder retracted;

fig. 4 is a front view of a single-side ladder of a monorail crane cab in use at present.

Detailed Description

As shown in fig. 1 and 2, the retractable monorail crane cab 5 ladder of the present invention comprises an outer ladder 1 and an inner ladder 2, wherein the outer ladder 1 comprises two parallel left and right outer columns 11, 11' and a plurality of parallel outer beams 12. The two ends of the cross beams 12 are respectively welded on the rear side surfaces of the left and right outer upright posts 11 and 11' and are uniformly distributed up and down. The cross beams 12 are made of steel plates, the bearing plate 16 is welded on the top cross beam 12 at the uppermost end, and when the man ladder is in a use state, the bearing plate 16 is lapped on the lower end frame 50 at the front side of the cab 5. The self-locking arm 15 which can be placed in the lower end frame 50 at the front side of the cab 5 is welded at the position close to the lower end of the left outer side of the left outer upright post 11, and the self-locking arm 15 is made of angle steel. The left and right outer columns 11, 11 ' are both U-shaped bodies with inward openings, and are formed by lapping a bottom plate of one angle steel on a bottom plate of the other angle steel and welding the bottom plates, and the inward openings of the left and right outer columns 11, 11 ' are respectively a left sliding groove 110 and a right sliding groove 110 '. The lower extreme of the leading flank of outer ladder 1 is equipped with limiting plate 10, and the left and right ends of limiting plate 10 weld respectively on the leading flank of left and right outer column 11, 11'. An auxiliary plate 13 positioned below the limiting plate 10 is welded between the front side surfaces of the left and right outer columns 11, 11'. The uppermost end of the left upright post 11 of the outer ladder 1 is hinged on a left end pin shaft 6 at the bottom of the left frame at the front side of the cab 5. The right side of the right upright post 11 of the outer ladder 1 is welded with a hand grip 14 which is convenient for workers to use. The inner ladder 2 comprises two parallel left and right inner uprights 21, 21' and a plurality of parallel inner cross-members 22. A plurality of inner cross beams 22 are welded between the left and right inner columns 21, 21 'in an up-and-down uniform manner, and the left and right inner columns 21, 21' and the inner cross beams 22 are all made of round steel pipes. The left and right inner upright posts 21, 21 ' of the inner ladder 2 are respectively positioned in the left and right sliding grooves 110, 110 ' of the outer ladder 1 and can move up and down in the left and right sliding grooves 110, 110 ', the front side of the inner cross beam 22 at the uppermost end of the inner ladder 2 is welded with a boss 20 which is parallel to the front and the back of the inner cross beam, and the boss 20 is made of a round steel pipe and positioned right above the limiting plate 10. When the inner ladder 2 slides downwards to the limit position in the left and right chutes 110, 110', the boss 22 is just clamped on the limiting plate 10, thereby effectively preventing the inner ladder 2 from slipping out from the outer ladder 1. A pulley 3 is fixed at the upper end of the front side of the cab 5, one end of a pull rope 4 is fixed on an inner lifting lug 24 at the lower end of the right outer side of the inner ladder 2, and the other end of the pull rope 4 is fixed in the cab 5 after bypassing the pulley 3.

When the crew is located in the cab 5, the inner ladder 2 is retracted into the outer ladder 1 and placed laterally outside the cab 5, as shown in fig. 3. The self-locking arm 15 of the outer ladder 1 is placed on the inner side of the lower end frame 50 on the front side of the cab 5, so that the ladder can be prevented from accidentally falling. When the staff need leave driver's cabin 5, hold stay cord 4 on one hand, the tongs 14 that lifts up outer ladder 1 on one hand will block the self-locking arm that goes into in lower extreme frame 50 and lift up, then slowly release stay cord 4 makes the people ladder use left end pin 6 as the centre of a circle to the perpendicular to ground of rotating downwards, and the loading board 16 of outer ladder 1 upper end is lapped on driver's cabin 5 front side lower extreme frame 50 this moment for the people ladder is more stable when being used. According to the height of the roadway, the inner ladder 2 slides down to the ground under the action of gravity so as to meet the requirements of different roadway heights. The limiting plate 10 of the outer ladder 1 can effectively prevent the inner ladder 2 from completely falling out of the outer ladder 1. The staff goes down to the ground along the stairway. After the staff need get back to cab 5 again, only need stimulate stay cord 4 that is located cab 5, the people ladder is under the effect of stay cord 4 upwards pulling force, use left end pin 6 as the height of centre of a circle upwards rotation to cab 5 lower extreme, lift the tongs 14 of outer ladder 1 with the hand this moment, will place self-locking arm 15 in cab 5 front side lower extreme frame 50 inboard to stay cord 4 is fixed well in cab 5, effectively prevents that the people ladder accident from droing. The utility model discloses length when the complete shrink of 5 people's ladders in retractable monorail crane driver's cabin is 1.5m, and the maximum length after the inner ladder stretches out is 3.2m, can effectively satisfy the user demand of different tunnel heights.

The utility model discloses retractable monorail crane driver's cabin ladder of people uses safe convenience, stable in structure, and its length can be adjusted and is applicable to the not tunnel of co-altitude. The utility model discloses telescopic single track hangs driver's cabin people's ladder has guaranteed staff's safety, saves the time of driver's cabin from top to bottom simultaneously, has improved work efficiency.

The above embodiments are only intended to describe the preferred embodiments of the present invention, but not to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art without departing from the design spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims (2)

1. The utility model provides a retractable monorail crane driver's cabin people's ladder which characterized in that: the outer ladder comprises an outer ladder (1) and an inner ladder (2), wherein the upper left end of the outer ladder (1) is hinged to the lower left end of a cab (5), the outer ladder (1) comprises two parallel left and right outer columns (11, 11 ') and a plurality of outer cross beams (12) which are uniformly distributed up and down and connected between the left and right outer columns (11, 11'), a bearing plate (16) which can be lapped on a lower end frame (50) at the front side of the cab (5) is fixed on the outer cross beam (12) at the uppermost end of the outer ladder (1), a self-locking arm (15) which can be placed on the inner side of the lower end frame (50) at the front side of the cab (5) is fixed on the left outer side of the outer ladder (1), the inner ladder (2) comprises two parallel left and right inner columns (21, 21 ') and a plurality of inner cross beams (22) which are uniformly distributed up and down and connected between the left and right inner columns (21, 21'), and the inner cross beam (22) at the left end, The right inner column (21, 21 ') respectively can be up-down slidably connected in the left and right spout (110, 110 ') of the left and right outer column (11, 11 ') of outer ladder (1), the lower extreme of outer ladder (1) is equipped with stop device, the top of inner ladder (2) be equipped with can with outer ladder (1) stop device complex boss (20), the upper portion of driver's cabin (5) is equipped with pulley (3), the one end of stay cord (4) is fixed in on inner ring (24) of inner ladder (2) lower extreme right side outside, the other end of stay cord (4) is walked around in pulley (3) after-fixing is in driver's cabin (5), the right side of outer ladder (1) is equipped with tongs (14).

2. The telescopic monorail crane cab man ladder of claim 1, wherein: the left and right outer columns (11, 11 ') of outer ladder (1) are the inward U-shaped body of opening, the opening of the U-shaped body of left and right outer column (11, 11') is left and right spout (110, 110 ') respectively, outer crossbeam (12) welds in the trailing flank of left and right outer column (11, 11'), stop device is limiting plate (10) of welding in left and right outer column (11, 11 ') leading flank below, left and right inner column (21, 21') and inner beam (22) of inner ladder (2) are circular steel pipe, boss (20) of inner ladder (2) are for welding in the steel pipe of inner beam (22) front side of inner ladder (2) upper end, boss (20) are located directly over limiting plate (10).

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