KR20220070828A - sliding insulating ladder truck for operation and maintenance of traction line - Google Patents

Abstract

The present invention relates to a sliding insulation ladder truck for repairing a traction line on an upper part of a rail on which a train operates. The present invention is manufactured in two detachable units and configured with a small product unit standard to facilitate horizontal transportation and implement weight lightening. The present invention has a horizontal work foothold integrated with a frame on an upper part, is capable of adjusting height at intervals of 30 cm, has an installed a foldable double ladder provided with the horizontal work foothold on the top portion to secure a maximum height of 5.5 m, secures a working space of 2 meters or more in width when mounting an auxiliary work foothold for extension by installing auxiliary work foothold guidance on a lower part of the horizontal work foothold, and has a structure to fundamentally prevent a fall accident by attaching a safety guardrail and safety block.

Description

Sliding insulating ladder truck for operation and maintenance of traction line

The present invention relates to an insulated ladder vehicle for repairing overhead catenary lines on a railway track on which a train operates, and to an insulated ladder vehicle for repairing a catenary having a structure that can simultaneously improve on-site transport and handling convenience and safety of workers will be.

There is an insulated ladder truck for work that is used for new construction and maintenance of overhead catenary lines on railroad tracks, but the existing product is heavy (120 kg) and has a high ladder height, making it difficult to balance, making it difficult to transport to the work site. It takes an excessive amount of time to put in, and it is difficult to transport a vehicle, so it is left unattended in elements along the railroad between stations.

The working scaffolding on the upper part of the ladder is temporarily fixed with temporary materials, and there is no safety handrail installed, so fall accidents occur frequently due to the operator's mistake.

When working on a curved section of a track, there was a fear of height workers and a ladder falling due to the cant on the left and right of the rail.

As shown in Figure 1, the ladder according to the prior art is attached to the A-shaped frame 14 and a pair of A-shaped frames 14 in the front and rear sides and a straight-type extra ladder 15 so that it can go up to 5.5m, and it becomes narrower toward the upper part. There was no work platform, so temporary scaffolding was used.

The fixing brake 11 was separately installed on each insulating material wheel 10, so it was inconvenient to operate.

The present invention was devised to solve the above problems, and the object of the invention is to prevent a fall accident of a worker during new construction and maintenance of overhead catenary on a railroad track, and to quickly transport and install a ladder truck with little force for convenient operation It is aimed at improving performance and safety.

In order to achieve the above object, the present invention is an insulated ladder in the form of a trapezoid composed of a frame of a three-stage sliding method, a ladder body and wheels of an insulating material. It is easy to carry horizontally by configuring the size small, and light weight is realized.

There is a horizontal work platform integrated with the frame on the upper part, and the height can be adjusted at 30cm intervals. By installing a guide, a work space of 2m or more in the width direction is secured when an auxiliary footrest for expansion is installed, and a safety railing and safety block are attached to provide a structure that can fundamentally prevent fall accidents.

The ladder truck body can be easily ascended and assembled by using the ladder truck pulling device, and worker safety is secured by assembling the upper extension auxiliary scaffold, safety handrail, and safety block on the ground in advance. There is a feature that the operator's convenience is improved by using the device.

It is characterized in that the hydraulic disc brake is installed in the center of the wheel axle of the insulated ladder to easily perform the function of preventing rolling on inclined tracks, and it is characterized in that it is formed in a structure that can lower the upper working platform while adjusting the brake when dismantling the main body.

Insulation material By attaching the insulation roller to the outside of the wheel, it is effective in preventing the ladder from falling due to the cant on the left and right sides of the rail when working in the curved section of the track.

According to the present invention, the ladder truck body is composed of two units to which a three-stage sliding method is applied, and by quickly transporting and installing it with little force, it is possible to greatly shorten the accident and failure recovery time, and the upper horizontal working scaffold and the auxiliary scaffold for expansion It has the effect of contributing to the increase of worker convenience and the prevention of safety accidents by pre-assembled on the ground and raised.

1 is a side view and a front view showing the configuration of an insulated ladder vehicle in use in the prior art.
Figure 2 is a side view showing a sliding insulated ladder according to an embodiment of the present invention.
Fig. 3 is a front view of Fig. 2;
Figure 4 is a cross-sectional view showing the frame pattern of the sliding three-step ladder of Figure 2.
5 is a conceptual view and a side view and a front view of a ladder pulling device for assembling the two detachable body units of FIG. 2 .
6 is a conceptual view, a front view (cross-section) and a side view of the insulation roller for preventing conduction preventing the widthwise conduction of FIG. 2;
Figure 7 is a perspective view of a pocket-type horizontal brace for fixing the two detachable body units of Figure 2;
8 is a perspective view showing the configuration of the upper working scaffold and the auxiliary scaffold for extension of FIG. 2 .
Figure 9 is a perspective view showing the configuration of the folding extra ladder on the upper working scaffold of Figure 2;
10 is a perspective view showing the assembly shape of the upper working scaffold, the auxiliary scaffold for expansion, and the safety handrail of FIG. 2;
11 is a perspective view showing the operating principle of the insulated ladder truck brake of FIG. 2 and the position of the ladder pulling device tow hook.
Figure 12 is a side view expressing the state in which the insulated ladder car of Figure 2 is dismantled in a sliding manner and loaded on the vehicle.
13 is a front view and a side view showing a state in which the electric device is mounted on the ladder pulling device of FIG.
Figure 14 is a diagram and instructions showing the configuration of the insulated ladder vehicle assembly sequence of Figure 2;
Figure 15 is a diagram and instructions showing the insulated ladder vehicle climbing method and safety device installation configuration of Figure 2;
Figure 16 is a diagram and instructions showing the installation configuration of the insulation roller and the upper working platform of the insulated ladder vehicle conduction prevention of Figure 3;

Hereinafter, it will be described in detail with reference to the attached Figures 2 to 16 with respect to the sliding insulated ladder vehicle for maintenance of the catenary according to the present invention.

The configuration of the insulated ladder car consists of a main body 110 consisting of two units in which three-stage sliding insulated ladder frames 111, 115, 117 including an upper working platform and an insulating roller 100 are integrated, and a pocket-type horizontal brace 130 for maintaining a rhombic shape. ), and a fall prevention insulating roller 140 for preventing the fall, and an auxiliary footrest 151 for upper extension and safety handrails (170, 171, 172), and an upper folding ladder 160.

Ladder frames (111, 115, 117) applied a three-stage sliding method, the first-stage frame 111 and the second-stage frame 115 shape is engaged as shown in Figure 4, the three-stage frame 117 is a two-stage frame ( 115) It is installed inside and is configured so that the height can be adjusted in 30cm intervals by taking it out.

The main body 110 composed of two units is placed on the rail at a distance of about 10 m, the second stage 115 and the third stage 117 ladder are drawn out, the connecting pin 120 is inserted, and the fixing pin ( 121) is inserted, and the central part of the main body 110 is raised to shoulder height, and the horizontal brace 130 is erected to temporarily support it with the clasp 133.

The safety handrail 170 is alternately fixed on the left side of each of the upper working boards of the main body, and the safety block is hung on the connecting pin 120, and the hook is pulled and fastened to the wheel of the ladder truck.

When using the auxiliary footrest 151 for extension, press it into the guide 150 to center it, then tighten the fixing bolts 152, fix all the auxiliary footrest safety handrails 171, and insert the pins 172 into the rope ( 220) is carried out on the ground in advance.

Install the ladder pulling device in the central part of the main body 110 as shown in FIG. 5, seat the catch 200 on one side of the rail, and fix it with the clasp 201 on the opposite rail, and attach the rope 220 to both the bogie wheel axles 101 ) After connecting to the rope drum 212 crosswise by hanging on the hook in the central part, while pulling the rope 220 with a pulling device, the brace 130 temporarily supported is removed.

Pull the rope 220 with the ladder pulling device until the ladder body 110 slopes to 75 degrees, and when the pulling is finished, it is fixed with a pocket-type horizontal brace 130 at a height of 1.3 m, and the disk installed on the bogie wheel shaft 101 The brake lever 304 of the brake is hung on the fixing member 305 to fix the wheel, and when the lateral force shakes, an X-shaped bracing is additionally installed.

Pocket-type horizontal brace 130 is equipped with a protrusion 133 for temporary support when the ladder body 110 rises, and the member 132 has a structure that can be entered into the main member 131, length adjustment The length can be adjusted with the pin 135 .

A folding ladder 160 is installed on the upper working platform so that it can be climbed to a height of 5.5 m, and it is fixed with a safety handrail 170 . At this time, the worker can prevent a fall accident by fastening the pre-installed safety block to the safety swing he is wearing and ascending and descending.

The fall prevention insulation roller 140 has a structure that spans the outer chin of the rail, can prevent the ladder truck from falling, and the height adjustment handle 142 and the depth adjustment handle 143 so that the auxiliary roller 144 is in close contact and buffered. ), a buffer coil 145, and the like.

Dismantling proceeds in the reverse order of installation, but the main body 110, both brakes must be fastened, and the horizontal brace 130 must be removed, and the ladder is slowly lowered while adjusting the brake on one side of the main body 110. At this time, if there is a risk of the insulating roller 100 sliding on the rail surface and rapidly descending, install the ladder pulling device as shown in FIG. release it slowly

The ladder pulling device is also used for assembling and disassembling the main body 110, and it is installed at a point about 10 m in the progress direction when working on an uphill slope of the track.

The ladder pulling device can be moved by power rotation by mounting an electric motor 402, a battery 401, and a spur gear 404 on the rotating shaft, and selective convenience was promoted so that even workers with weak physical strength can use it without effort.

It has the advantages of being easy to handle by anyone because the product unit size is small, and the structure is simple, and it can be easily transported by loading it in a 1-ton double cab truck.

10: Insulation material wheel
11: Wheel fixing brake
12: bogie wheel axle
13: horizontal frame in the front and rear direction of the bogie
14 : ladder frame
15: straight ladder
16: middle horizontal brace
17: handle for moving
50: catenary line (feeder line)
90: railway rail
100: Insulation roller (insulation material wheel)
101: bogie wheel axle
102: brake disc
110: ladder car body (including 3-stage sliding insulated ladder and bogie wheel)
111: 1-step ladder frame (including bogie wheels)
112: 1 step ladder scaffolding
113: 1-2 junction clasp
114: 2-step ladder lower frame
115: 2-step ladder frame
116: 2 step ladder scaffolding
117: 3-step ladder frame (including upper horizontal work platform and auxiliary scaffold guide)
118: 3 step ladder scaffolding
119: 2-3 junction clasp
120: main unit connection pin
121: body unit connection pin fixing pin
125: safety handrail fixing hole
130: pocket-type horizontal brace
131: pocket type horizontal brace
132: Pocket type horizontal brace member
133: step sill for temporary support of the ladder body
134: horizontal brace length adjustment pinhole
135: horizontal brace length adjustment pin
136: ladder step sill
140: conduction prevention insulation roller set
141: shaft bearing
142: height adjustment handle
143: depth adjustment handle
144: auxiliary insulating roller (auxiliary roller)
145: buffer coil
146: rotation shaft connecting pin
150: auxiliary footrest guide for extension
151: auxiliary footrest for extension
152: auxiliary footrest fixing bolt for extension
160: upper folding ladder
170: upper work platform safety handrail
171: safety handrail for auxiliary scaffolding for extension
172: safety handrail pin
173: safety handrail pin rubber handle
200: catch
201 : Rail Shackle
202: non-slip rubber pad
210: pull bogie rotation shaft
211: shaft bearing
212: rope drum
213: drum guide
214: reverse rotation prevention device
215: lever clasp
220: manila rope
301: brake pad
*302: brake hydraulic generator
303: handle
304: brake lever
305: lever clamp
306: auxiliary handle
401 : battery
402: electric motor
403: motor speed control knob
404: spur gear

Claims (3)

The structure of the insulated ladder car is a three-stage sliding method including an upper working platform, and it has a shape that can take out the second-stage frame from the first-stage frame of the ladder and the third-stage frame from the second-stage frame,
The ladder truck body consists of two identically shaped units, fixed with a central connecting pin, and assembled by raising the center of the two carts facing each other by means of a ladder pull-up device to the center and at the same time assembling a stable diamond shape. keep,
Auxiliary scaffolding for expansion can be attached to the lower part of the upper working scaffold from the ground, and it is made in a pre-assembly method in which a rope-type safety belt is pre-installed by inserting a safety railing and a pin.
A sliding insulated ladder truck for catenary repair with hydraulic disc brakes installed at the center of the wheel axle, and consisting of a hydraulic generator, a handle, an auxiliary handle, a brake lever and a lever fixture. The ladder pulling device has a rotating shaft that crosses by sitting on both sides of the rail, and is a mechanical device that can pull the two-way cart at the same time by installing two integrated rope drums. A ladder truck pulling device that can be pulled and can be used with an electric motor and battery installed. The fall prevention insulation roller has a structure that hangs over the chin of the rail to prevent the fall of the ladder truck, and the height adjustment handle, the depth adjustment handle, and the buffer coil are inserted so that the auxiliary roller is closely attached to the rail and buffered.

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