JPS59564Y2 - Track uplift and subsidence warning device on railway tracks - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a track heave warning device for railway tracks.

Traditionally, when carrying out construction work in close proximity to commercial lines, the first condition has been that the work must be carried out without disturbing the tracks.

However, pipe work such as pipes and roofs under the tracks,
When performing shield work or chemical injection work, there is a risk that abnormal upheaval or subsidence may occur on the track.

It is extremely dangerous if left unattended.

Traditionally, track displacement has been measured using instruments such as subsidence meters and displacement meters, as well as enhanced track monitoring.

However, due to the shape of the instrument, the installation location is limited to the roadbed, etc., and therefore indirect measurement of the track is required.

For this reason, actual orbit deviations are currently measured using other instruments and measuring instruments.

The purpose of this invention is to provide a track heave warning device for railway tracks that can directly detect the heave or subsidence of the track.

In this invention, a detection contact mechanism is attached directly to the track at a construction site, and is configured to quickly detect track deviations due to uplift or subsidence and issue an alarm.

An embodiment of this invention will be described below in detail with reference to the drawings.

In the figure, reference numeral 111 indicates a track, and shows a situation in which work is being carried out to pass a pipe 112 under the track 111.

113 indicates the area that is expected to be affected by this construction.

In this design, the area that is expected to be affected by construction 1
13 and set reference points 114 and 115 on the outside thereof,
A conductive wire 1 between these reference points 114 and 115
16 is stretched, and contacts 117 and 118 attached to the monitored point are arranged above and below this wire 116, and this contact 1
17 or 118 is in contact with the wire 116 and is configured to electrically detect the occurrence of uplift or subsidence at the monitored point.

In this example, the reference points 114 and 115 are constructed of stakes.

Insulating boos IJ 119, 120 are attached to the upper ends of the piles, and the wire 116 is stretched through these pulleys 119 and 120.

An insulating material 121 and a spring 122 are inserted into the joint of the end of the wire 116, and the spring 122 holds the wire 1
16 to give tension.

Therefore, reinforcing piles 123, 124 are driven into the piles forming the reference points 114 and 115, and these reinforcing piles 123, 12
4 and the stakes that constitute the reference points 114 and 115.
25 and 126 show the case where the knot reference points 114 and 115 are configured to withstand the tension of the spring 122.

The wire 116 has a spacing piece 127 made of insulating material.
is installed to prevent the vertical distance between the wires 116 from changing due to vibrations caused by passing vehicles.

On the other hand, the contacts 117 and 118 are attached to the track 111 in this example.

That is, the wire 116 is stretched parallel to the track 111.

On the other hand, the arm 12B is passed between the bottom parts of the track 111.

Arm 12B is attached to the bottom of the track by rail chuck 129 and insulated by joint 131 to prevent electrical short circuit between tracks 111, and one end thereof is placed close to wire 116.

Contacts 117 and 118 are placed at the ends of the adjacent arms 12B.
is installed.

The details of the contacts 117 and 118 are as shown in FIG.
, 213 are attached.

The insulating rods 212 and 213 are attached to the base 211 so as to be movable up and down.

Contacts 117 and 118 are attached to the upper ends of the insulating rods 212 and 213.

The contacts 117 and 118 are made of stainless steel, for example, and are arranged above and below the wire 116 at a predetermined distance.

Note that 214 is a steady rest for the wire 116, and this steady rest prevents the wire 116 from swinging sideways beyond the range of the contacts 117 and 118.

Further, the arm 12B and the wire 116 are connected to the U-shaped groove 13, for example.
It is protected by 2 and 133.

FIG. 3 shows the electrical circuit of the device according to this invention.

In the figure, 311 is the main body of the alarm device. Alarm device body 311
As shown in Fig. 4, there is a DC power supply 411 and a relay 412.
When the relay 412 is energized and the contact 413 is closed,
A timer 415 starts measuring time from that point and controls the contact 414 to turn on after a predetermined period of time, for example, several seconds;
The buzzer 4 sounds when the contact 414 of the buzzer 4 is turned on.
16 and a lamp 417 are housed, and the contact 117 or 11
When B contacts the wire 116, the buzzer 416
sounds and the lamp 417 lights up to issue an alarm.

Buzzer 416 continues to sound until reset switch 418 is turned off.

Returning to FIG. 3 again, the DC power supply 411 housed in the alarm device main body 311 is normally obtained by rectifying the commercial power supplied from the plug 312, but in the event of a power outage in the commercial power supply, the DC power supply 411 is supplied from the battery. 313 is automatically switched.

Furthermore, external connection terminals 314 and 315 are provided, and by connecting an external buzzer 316 to these external terminals 314 and 315, it is possible to detect upheaval or subsidence of the monitored point even at a distance.

In this example, a disconnection detector 317 of the wire 116 is provided, and the disconnection detector 317 is a lead wire 419, 420 connected between the ends of the wire 116 as shown in FIG.
421, a relay 422, and a battery 423.

In other words, the relay 422 is always kept energized by a closed circuit from the lead wire 421 - battery 423 - lead wire 419 - wire 116 - lead wire 420, and the contacts 424 of the relay 422 are kept open. When wire 116 is disconnected, relay 422 is deenergized, contact 424 is closed, and buzzer 416 and lamp 417 are activated to issue an alarm.

Therefore, according to this invention, it is possible to directly detect whether the trajectory is elevated or subsided.

This can be directly detected by contacts 117 and 118.

Further, since the spring 122 is inserted into the wire 116 so as to always apply tension to the wire 116, even if the wire 116 is extended due to a rise in temperature, the position of the wire 116 does not change.

Therefore, malfunctions caused by slack in the wire 116 can be prevented.

Furthermore, since the anti-sway means 214 is provided, even if the wire 116 swings sideways due to vibration or wind, the width of the swing can be controlled by the contact point 11.
The wire 116 is regulated within the length range of 7,118.
There is no possibility that the contact points 117 and 118 will come off upward or downward.

However, even if the wire 116 is disconnected, an alarm can be issued.

Therefore, a highly reliable orbital uplift and subsidence warning device can be obtained.

However, the orbit uplift and subsidence warning device of this invention has a simple structure and can be manufactured at low cost.

In addition, in the above, the reference point 11 is set by driving a stake outside the monitored point.
For example, as shown in FIG. 5, rail chucks 511 and 512 are installed on the track located outside the area 113 affected by the construction work, and insulated pulleys are attached to the rail chucks 511 and 512. 119, 120 are installed, and this insulating pulley 119, 12
A wire 116 is strung between 0 and a stake 513,
514, and the contact points 117,
118 may be attached.

Therefore, even with this configuration, if the part 113 affected by construction rises or subsides, the piles 513 and 514
also rises or falls, causing contact 117 or 11B to contact wire 116 and to issue an alarm.

Therefore, according to this embodiment, the arm 128 shown in FIG. 1 is not required and the installation work can be easily performed.

In addition, as shown in Figure 6, the area affected by the construction 1
Contact points 117 and 118 may be attached to the sleepers located within 13.

Even if the contacts 117 and 118 are attached to the sleepers in this way, if the ground rises or sinks due to construction, the contacts 117 and 118 will
118 contacts wire 116 and can be detected.

As explained above, according to this invention, uplift and subsidence of the track can be reliably detected with a simple configuration.

Therefore, an inexpensive and highly reliable track heave and subsidence warning device can be obtained, and its effects are extremely great in practical use.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing an embodiment of this invention, FIG. 2 is a perspective view illustrating the main parts of the device according to this invention, and FIG.
5 and 4 are connection diagrams for explaining the electrical configuration of the device according to this invention, and FIGS. 5 and 6 are perspective views showing other embodiments of this invention. 111...Track, 113...Area affected by construction, 114,115...Reference point, 116...Wire, 117°118...
... Contact, 311 ... Alarm device body.

Claims (1)

[Scope of Claim for Utility Model Registration] A. A reference point provided on both sides in a direction parallel to the track, sandwiching the place where the track is likely to rise or subside, and B. A conductive wire stretched between these reference points. (C) a spring that applies tension to this wire and prevents the wire's tension position from changing due to temperature fluctuation; (D) a pair of springs attached to the monitored point and provided close to the upper and lower sides of the wire; F A timer for detecting that the contact between the wire and the contact point continues for a certain period of time or more; A track uplift and subsidence warning device for railway tracks, comprising an alarm that issues an alarm based on output.