CN218420713U

CN218420713U - Upright column type rotary anti-falling lifeline

Info

Publication number: CN218420713U
Application number: CN202222590182.5U
Authority: CN
Inventors: 朱军; 谢世龙; 曾思茗; 庄言
Original assignee: Guangzhou Electrical Locomotive Co Ltd
Current assignee: Guangzhou Electrical Locomotive Co Ltd
Priority date: 2022-09-29
Filing date: 2022-09-29
Publication date: 2023-02-03
Anticipated expiration: 2032-09-29

Abstract

The utility model provides a rotatory life line of preventing weighing down of stand type, includes that two sets of or more than two sets of prevent weighing down the life line unit and set up the safety rope mounting between adjacent two prevent weighing down the life line unit, prevent weighing down the life line unit and include lift stand subassembly and set up the cantilever on the lift stand subassembly, the end that stretches out of cantilever is provided with the hookup location that is used for installing safety rope mounting tip. By adopting the technical scheme, the lifting stand column assembly can stretch out and draw back, and the cantilever can be packed up or screwed out through rotation, so that the lifting stand column assembly is lifted and the cantilever is screwed out, the safety rope fixing piece can reach the appointed height and position, the safety rope is fixed, and the maintenance at the top of the locomotive is facilitated. After the overhaul is finished, the cantilever is retracted, the lifting upright post assembly is folded downwards, the life line can be folded, the top space of the locomotive is not occupied, and the crane can run conveniently.

Description

Upright column type rotary anti-falling lifeline

Technical Field

The utility model belongs to the technical field of prevent weighing down lifeline technique and specifically relates to a rotatory life line of preventing weighing down of stand type.

Background

At present, in the assembly and disassembly operation of the top of a locomotive in the electric locomotive maintenance industry, an operator is positioned at the top of the locomotive about 4 meters away from the ground, the operation belongs to high-altitude operation, and a safety belt needs to be fastened for anti-falling protection. However, no proper safety belt hanging point exists during operation on the top of the locomotive, and the safety belt can only be hung on a locomotive top component, so that the method is not convenient for people to walk on the top of the locomotive with the length of about 21m, and also does not meet the requirement of high hanging and low using of the safety belt.

According to the national standard requirements, the operation carried out at the high place where the falling height reference surface is more than 2m (including 2 m) and the falling is possible is high place operation. High-rise operations must be equipped with the necessary fall arrest safety equipment to ensure the life safety of the operating personnel. At present, when an operator needs to disassemble and assemble the top cover of the locomotive at the top of the locomotive, the safety belt cannot be reasonably used, and the risk of falling from a high place exists.

Because the overhead bridge crane runs above the top of the locomotive, the wall-mounted crane runs on the side wall, and the overhead bridge crane occupies the operation space on the top of the locomotive. In addition, due to the influence of the layout and operation of the operation site, the surrounding space of the locomotive is limited, and a gantry type anti-falling device cannot be installed, so that a solution is needed to be provided to enable the lifeline system to effectively play an anti-falling function, and meanwhile, the interference of a hoisting machine on the lifeline system can be avoided.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a rotatory life line of preventing weighing down of stand type prevents weighing down the life line and can take up and expand, stretch out and draw back, does not occupy the locomotive headspace for locomotive top equipment operation normally goes on, for reaching above-mentioned purpose, the utility model discloses a following technical scheme:

the utility model provides a rotatory lifeline of preventing weighing down of stand type, includes that two sets of or more than two sets of prevent weighing down the lifeline unit and set up at adjacent two safety rope mountings of preventing between the lifeline unit, prevent weighing down the lifeline unit and include the lift stand subassembly and set up the cantilever on the lift stand subassembly, the end that stretches out of cantilever is provided with the junction position that is used for installing safety rope mounting tip.

Furthermore, the lifting upright post assembly comprises a first upright post, a second upright post inserted at the upper end of the first upright post and a longitudinal driving unit which is arranged between the first upright post and the second upright post and drives the second upright post to move up and down relative to the first upright post.

Furthermore, the lifting upright post assembly further comprises a third upright post inserted at the upper end of the second upright post, and another longitudinal driving unit which is arranged between the second upright post and the third upright post and drives the third upright post to move up and down relative to the second upright post.

Further, the longitudinal driving unit is a lead screw nut unit.

Further, the screw-nut unit that is located between first stand and the second stand is first screw-nut unit, and first screw-nut unit is including setting up the first motor on first stand, setting up the first belt pulley at first motor output, rotatable second belt pulley of installing on first stand, around establishing the belt on first belt pulley and second belt pulley, wear to establish in the second belt pulley hole and the relative second belt pulley screw rod that splines and set firmly the nut on the second stand, screw rod and nut threaded connection, the hole of first stand forms the spout and makes first stand and second stand spline relatively.

Furthermore, a transverse driving unit for driving the cantilever to rotate horizontally is arranged at the top of the lifting stand column assembly, the transverse driving unit comprises a second motor and a speed reducer arranged at the output end of the second motor, and an output shaft of the speed reducer drives the cantilever to rotate.

Further, the safety rope fixing part is a steel wire rope.

Further, the connection position is an installation shaft, and the end of the steel wire rope is wound on the installation shaft and is fixedly connected with the installation shaft.

By adopting the technical scheme, the lifting stand column assembly can stretch out and draw back, and the cantilever can be packed up or screwed out through rotation, so that the lifting stand column assembly is lifted and the cantilever is screwed out, the safety rope fixing piece can reach the appointed height and position, the safety rope is fixed, and the maintenance at the top of the locomotive is facilitated. After the overhaul is finished, the cantilever is retracted, the lifting upright post assembly is folded downwards, the life line can be folded, the top space of the locomotive is not occupied, and the crane can run conveniently.

Drawings

Fig. 1 is a perspective view of the present invention.

Fig. 2 is an enlarged schematic view of a point a in fig. 1.

Fig. 3 is an enlarged schematic view of B in fig. 1.

Detailed Description

The present invention will be described with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1-3, a column-type rotary anti-falling lifeline comprises two or more groups of anti-falling lifeline units 1 and a safety rope fixing member arranged between two adjacent anti-falling lifeline units 1, wherein each anti-falling lifeline unit 1 comprises a lifting upright post assembly and a cantilever 3 arranged on the lifting upright post assembly, a connection position for installing the end part of the safety rope fixing member is arranged at the extending end of the cantilever 3, the connection position is an installation shaft 4, the safety rope fixing member is preferably a steel wire rope 2, and the end part of the steel wire rope 2 is wound on the installation shaft 4 and is fixedly connected with the installation shaft 4.

The lifting upright post assembly comprises a first upright post 5, a second upright post 6 inserted at the upper end of the first upright post 5, a longitudinal driving unit arranged between the first upright post 5 and the second upright post 6 and used for driving the second upright post 6 to move up and down relative to the first upright post 5, a third upright post 7 inserted at the upper end of the second upright post 6, and another longitudinal driving unit arranged between the second upright post 6 and the third upright post 7 and used for driving the third upright post 7 to move up and down relative to the second upright post 6.

The longitudinal driving unit is a screw nut unit. The screw-nut unit between the first upright post 5 and the second upright post 6 is a first screw-nut unit 8, the first screw-nut unit 8 comprises a first motor 9 arranged on the first upright post 5, a first belt pulley 10 arranged at the output end of the first motor 9, a second belt pulley 11 rotatably arranged on the first upright post 5, a belt (omitted in the figure) wound on the first belt pulley 10 and the second belt pulley 11, a screw rod (omitted in the figure) penetrating in an inner hole 12 of the second belt pulley and stopping rotation relative to the second belt pulley 11 and a nut 13 fixedly arranged on the second upright post 6, the screw rod is in threaded connection with the nut 13, the inner hole of the first upright post 5 forms a chute 14 and enables the first upright post 5 and the second upright post 6 to stop rotation relatively.

The screw nut unit located between the second upright 6 and the third upright 7 is a second screw nut unit 15, and the structure thereof is the same as that of the first screw nut unit 8, and the details are not repeated here.

The top of the lifting column assembly is provided with a transverse driving unit for driving the cantilever 3 to horizontally rotate, the transverse driving unit comprises a second motor 16 and a speed reducer 17 arranged at the output end of the second motor 16, and an output shaft of the speed reducer 17 drives the cantilever 3 to rotate.

Adopt above-mentioned technical scheme, the lift stand subassembly can stretch out and draw back, and cantilever 3 can be packed up or unscrewed through the rotation, consequently, rises the lift stand subassembly and unscrews cantilever 3, can make the safety rope mounting reach appointed height and position, supplies the fixed of safety rope, makes things convenient for the maintenance at locomotive top. After the overhaul is finished, the cantilever 3 is retracted and the lifting upright post assembly is folded downwards, the life line can be folded, the top space of the locomotive is not occupied, and the crane can operate conveniently.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications, combinations, and variations may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims

1. The utility model provides a rotatory life line of preventing weighing down of stand type which characterized in that: including two sets of or two sets of more than prevent weighing down the lifeline unit and set up the safety rope mounting between adjacent two prevent weighing down the lifeline unit, prevent weighing down the lifeline unit and include lift stand subassembly and set up the cantilever on the lift stand subassembly, the end that stretches out of cantilever is provided with the junction position that is used for installing safety rope mounting tip.

2. The mast-type rotational fall arrest lifeline of claim 1, wherein: the lifting upright post assembly comprises a first upright post, a second upright post inserted at the upper end of the first upright post and a longitudinal driving unit which is arranged between the first upright post and the second upright post and drives the second upright post to move up and down relative to the first upright post.

3. The mast-type rotational fall arrest lifeline of claim 2, wherein: the lifting upright post assembly further comprises a third upright post inserted at the upper end of the second upright post and another longitudinal driving unit arranged between the second upright post and the third upright post and used for driving the third upright post to move up and down relative to the second upright post.

4. The post-type rotational fall arrest lifeline of any one of claims 2 or 3, wherein: the longitudinal driving unit is a screw nut unit.

5. The mast-type swivel fall arrest lifeline of claim 4, wherein: the screw-nut unit that is located between first stand and the second stand is first screw-nut unit, and first screw-nut unit is including setting up the first motor on first stand, setting up at the first belt pulley of first motor output, rotatable second belt pulley of installing on first stand, around establishing the belt on first belt pulley and second belt pulley, wear to establish in the second belt pulley hole and the relative second belt pulley stop the lead screw that changes and set firmly the nut on the second stand, lead screw and nut threaded connection, the hole of first stand forms the spout and makes first stand and second stand stop the rotation relatively.

6. The mast-type rotational fall arrest lifeline of claim 1, wherein: the top of the lifting upright post component is provided with a transverse driving unit for driving the cantilever to rotate horizontally, the transverse driving unit comprises a second motor and a speed reducer arranged at the output end of the second motor, and the output shaft of the speed reducer drives the cantilever to rotate.

7. The mast type rotational fall arrest lifeline of any one of claims 1, 2, 3, 5, 6, wherein: the safety rope fixing part is a steel wire rope.

8. The mast-type rotational fall arrest lifeline of claim 7, wherein: the connection position is the installation axle, wire rope's tip around establishing on the installation axle and with installation axle fixed connection.