KR101766530B1 - Worker urgent escape apparatus - Google Patents

Worker urgent escape apparatus Download PDF

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Publication number
KR101766530B1
KR101766530B1 KR1020150113643A KR20150113643A KR101766530B1 KR 101766530 B1 KR101766530 B1 KR 101766530B1 KR 1020150113643 A KR1020150113643 A KR 1020150113643A KR 20150113643 A KR20150113643 A KR 20150113643A KR 101766530 B1 KR101766530 B1 KR 101766530B1
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KR
South Korea
Prior art keywords
unit
fixed
worker
operator
mobile unit
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KR1020150113643A
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Korean (ko)
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KR20170020568A (en
Inventor
김남훈
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주식회사 포스코
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Priority to KR1020150113643A priority Critical patent/KR101766530B1/en
Publication of KR20170020568A publication Critical patent/KR20170020568A/en
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    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B3/00—Devices or single parts for facilitating escape from buildings or the like, e.g. protection shields, protection screens; Portable devices for preventing smoke penetrating into distinct parts of buildings
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B35/00—Safety belts or body harnesses; Similar equipment for limiting displacement of the human body, especially in case of sudden changes of motion
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B35/00—Safety belts or body harnesses; Similar equipment for limiting displacement of the human body, especially in case of sudden changes of motion
    • A62B35/0043—Lifelines, lanyards, and anchors therefore
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
    • B66D1/02—Driving gear
    • B66D1/12—Driving gear incorporating electric motors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
    • B66D1/02—Driving gear
    • B66D1/14—Power transmissions between power sources and drums or barrels
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B3/00—Audible signalling systems; Audible personal calling systems
    • G08B3/10—Audible signalling systems; Audible personal calling systems using electric transmission; using electromagnetic transmission

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Emergency Lowering Means (AREA)

Abstract

An emergency escape apparatus for preparing for burial of a worker in a workplace with a risk of burial, comprising: a fixed unit installed across an area above the worksite; A mobile unit which is moved on a fixed unit and to which an operator's safety band is connected to allow an operator to enter and exit the worksite; And an escape unit for escaping the worker from the workplace by operating the mobile unit according to a signal generated by the worker or caused by a change in the environment around the worker.

Description

WORKER URGENT ESCAPE APPARATUS [0002]

The present invention relates to a method and apparatus for preventing a burial disaster by automatically escaping a worker from a workplace when a situation change is sensed by responding sensitively to a change in pressure, And to an apparatus for emergency escape of a worker.

In general, workshops such as silos and coal bins require workers to be put into workplaces for the maintenance of equipment, and to remove the sticks and the like attached to the walls. In this process, burial phenomena such as sticking burrs may occur and the operator may be buried in the work place.

In the conventional case, when the line is fixed to the safety belt worn by the operator and the belt is installed in the upper area of the work site, the supervisor at the upper side operates the motor that winds up the line or turns the line, . However, in such a method, there is a problem that the timely structure of the worker is difficult due to difficulty in visually observing the situation occurring in the lower part of the work area due to variables such as distance and illumination, by the supervisor in the upper area of the work area.

It should be understood that the foregoing description of the background art is merely for the purpose of promoting an understanding of the background of the present invention and is not to be construed as an admission that the prior art is known to those skilled in the art.

KR 10-2011-0043478 A

The present invention relates to a method and apparatus for preventing a burial disaster by automatically escaping a worker from a workplace when a situation change is sensed by responding sensitively to a change in pressure, And to provide a worker emergency escape apparatus capable of preventing such a situation.

According to an aspect of the present invention, there is provided an emergency escape apparatus for preparing a worker for a buried situation in a workplace where there is a risk of burial, comprising: a fixed unit installed across a work area; A mobile unit which is moved on a fixed unit and to which an operator's safety band is connected to allow an operator to enter and exit the worksite; And an escape unit that operates the mobile unit according to a signal generated by an operator or caused by a change in environment around the worker to escape the worker from the workplace.

The stationary unit includes a pair of stationary ropes that run parallel to and spaced from the worksite upper area and support the mobile unit; A pair of fixed drums wound on a fixed rope and capable of being unwound and provided on one side of a work area; And a fixing means formed at an end of the fixed rope and fixed to the other side of the work area, wherein the fixed drum is provided with a stopper selectively limiting the unwinding of the fixed rope, have.

The mobile unit comprises: a safety rope connected to the end of the safety rope to support the operator; A rotary drum installed between the pair of fixed drums and capable of winding and winding the safety rope; A movable pulley which extends laterally from the center of both sides and is formed on a pair of fixed ropes so as to be supported by the support rods and transforms the extension direction of the safety rope into a lower portion of the work area; And a drive motor for driving the rotary drum to wind and unwind the safety rope.

The change in the environment around the worker is caused by a change in the pressure around the worker, and the exit unit includes a sensor unit formed in the end of the mobile unit to which the safety belt is connected, A transmitter for transmitting a pressure change sensed by the sensor unit as a signal; A controller capable of generating an arbitrary signal by an operator; A receiver for receiving a pressure change signal from the transmitter or a signal generated by the operator from the controller; And a control unit for activating the mobile unit and escaping the worker from the workplace when the receiving unit receives the pressure change signal or the signal generated by the worker.

The escape unit includes an alarm that sounds an alarm before the operation of the mobile unit of the control unit; And the controller may be capable of arbitrarily stopping the operation of the mobile unit of the control unit by the operator.

According to the above-described worker's emergency escape apparatus of the present invention, by the presence of the sensor for detecting a change in the state of pressure or the like, the worker is automatically escaped from the workplace through such a signal in response to an increase in the pressure applied to the worker, It has an effect that a timely construction of an operator becomes possible.

In addition, the presence of the controller capable of canceling the work escaping the worker from the work site enables the operator to arbitrarily respond to the malfunction of the sensor or the pressure increase not related to the buried situation, thereby improving the working efficiency.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows a worker emergency escape apparatus according to an embodiment of the present invention; FIG.
2 illustrates the operation of a worker emergency escape apparatus according to an embodiment of the present invention.
3 shows a fixed unit and a mobile unit in the work area above the workplace according to an embodiment of the invention.
4 illustrates a safety harness and a controller connected to a safety rope according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

The worker's emergency escape apparatus according to the present invention is an emergency escape apparatus for preparing for burial of a worker in a workplace with a risk of burial, comprising: a stationary unit 100 installed across an area above a worksite; A mobile unit 200 that is moved on the fixed unit 100 and has an end connected to a safety belt 10 of an operator to allow an operator to enter and exit the worksite; And an escape unit (300) for escaping the worker from the workplace by operating the mobile unit (200) in response to a signal generated due to a change in the environment around the worker or a change in environment around the worker.

In general, workshops such as silos and coal bins require workers to be put into workplaces for the maintenance of equipment, and to remove the sticks and the like attached to the walls. In this process, burial phenomena such as sticking burrs may occur and the operator may be buried in the work place.

An apparatus for escaping an operator from a work site to prevent burial disasters caused by such a phenomenon is provided.

First, the fixed unit 100 is installed on one side of the work area, crossing the work area on the other side. Preferably, the fixed unit 100 is designed to be freely extendable so that it can flexibly cope with changes in the size of the workplace.

The fixed unit 100 is installed across the upper area of the worksite to provide a choice on the location on the fixed unit 100 where the worker is to be put into the work area and a support function to lift the worker to the work area to provide.

In order to fully exercise the above function, the fixing unit 100 should be firmly fixed to the work area, and the fixing unit 130 should be provided to be fixed to the other side of the work area. The fastening means 130 may preferably be formed in the form of a carabiner to be able to securely fasten the fasteners 20 of various shapes and sizes.

Next, the mobile unit 200 is configured in such a manner that it is moved in parallel along the fixed unit 100 on the fixed unit 100, and then extends downward to the work place. In addition, the safety unit 10 to which the worker is attached is connected to the end of the mobile unit 200 to serve the worker on the fixed unit 100 while guiding the worker to the workplace.

In order to perform the above-described functions, the mobile unit 200 must be able to freely move on the fixed unit 100, and in order to move in the downward direction of the work station on the fixed unit 100, .

An escape unit (300) for detecting a change in the circumference of a worker or actuating the mobile unit (200) according to a signal generated due to an environment change around the worker to escape the worker from the workplace is basically a situation Means should be provided to detect changes. In addition, it should be designed to operate the mobile unit 200 in accordance with the operator's intention.

In an embodiment of the present invention, a method of reflecting the intention of the operator is to provide a signal device for operating the mobile unit 200 on the side of the safety band reaching the hand of the operator so as to not only change the situation such as pressure detection, Can be designed to escape from the workplace.

The means for sensing the pressure must be located near the safety belt 10 to be capable of responding to changes in pressure applied around the operator. In addition, when the pressure change is sensed, the mobile unit 200 must be moved above the workplace by means of controlling the mobile unit 200 so that the worker can escape from the workplace.

The technical idea that is the core of the present invention is that when a situation change is sensed in response to a situation change such as a pressure change in a worker's maintenance or the like, And to provide a worker emergency escape apparatus capable of preventing a burial disaster by automatically escaping.

In the worker emergency escape apparatus according to the present invention, the fixed unit 100 includes a pair of fixed ropes 120 which are parallel to each other and apart from the work area, and support the movable unit 200; A pair of fixed drums (110) wound on the fixed rope (120) and capable of being unwound and installed on one side of the work area; And a fixing unit 130 formed at an end of the fixed rope 120 and fixed to the other side of the work area. The fixed drum 110 is formed with a stopper selectively limiting the unwinding of the fixed rope 120, It is possible to prevent the unit 200 from being unwound by a load.

The fixed ropes 120 are provided with a pair and are spaced apart and parallel to each other across the work area, thereby enabling the mobile unit 200 to be positioned in a stable manner on the fixed rope 120.

The pair of fixed ropes 120 can be wound around the fixed drum 110 and can be unwound from the fixed drum 110 so that it is possible to flexibly cope with the size change of the work site as mentioned above. A pair of fixed drums 110 on which the fixed ropes 120 are wound are fixed to one side of the work area.

At the end of the fixed rope 120, a securing means 130 is formed. A pair of fixed ropes 120 wound from the fixed drum 110 extend across the work area and can be fixed to the other side of the work area in the presence of the fixing means 130.

The fixing means 130 may be formed in the form of a carabiner as described above and may be securely fixed to a fixing table 20 formed on the side of a work site of various shapes and sizes and preferably a means capable of loking on the carabiner Thereby completing the function of the fixed unit 100.

The fixed drum 110 may be provided with a stopper selectively limiting the unwinding of the fixed rope 120 so as to prevent the movable unit 200 from being unwound by the load. As described above, the fixed unit 100 is formed to cross the upper area of the work area and is firmly fixed to the work area, thereby supporting the mobile unit 200.

However, if the fixed rope 120 wound from the fixed drum 110 is wound by the load of the movable unit 200 even after the fixed rope 120 is fixed by the fixing means 130, the support function of the movable unit 200 can not be performed. A stopper for selectively limiting at least one unwinding of the fixed rope 120 is formed in the fixed drum 110 to prevent the movement of the stationary rope 120 from being released from the fixed drum 110 even when a load of the movable unit 200 acts, It is possible to perform the supporting function of the unit 200.

In the worker emergency escape apparatus according to the present invention, the mobile unit 200 includes a safety rope 220 connected to the end of the safety rope 10 to support the worker; A rotary drum 240 installed between the pair of fixed drums 110 and capable of winding and winding the safety rope 220; A movable pulley 230 extending laterally from the center of both side surfaces to form a support 231 so as to be positioned on a pair of fixed ropes 120 and converting the extending direction of the safety rope 220 to a lower portion of the work area; And a driving motor 210 for driving the rotary drum 240 to wind and unwind the safety rope 220.

The safety rope 220 connected to the end portion of the safety rope 10 and supporting the operator must be a rope formed so as to be able to withstand the load of the operator and not hung up even when the pressure increases due to the buried situation. The safety belt 10 is connected to the end of the safety belt 10. The connection position of the safety belt 10 is preferably connected to the back side of the operator when the safety belt 10 is mounted so that even if the operator loses consciousness due to the buried state, It is desirable that the worker's waist is designed not to be damaged in the process.

A rotary drum 240, which is installed between a pair of fixed drums 110 and on which a safety rope 220 is wound and can be wound, is installed between a pair of fixed drums 110 in an upper region of a work area, So that the mobile unit 200 can be positioned in a stable manner. The safety rope 220 is wound and freely retractable so that the mobile unit 200 can freely move on the fixed unit 100. [ Preferably, means capable of automatically rotating the rotary drum 240 are connected to allow the worker to escape from the workplace automatically.

The movable pulley 230 is disposed between the pair of fixed ropes 120 so that the safety rope 220 is moved over the movable pulley 230 so that the echo can be switched in a direction perpendicular to the horizontal direction with respect to the fixed rope 120 . A pair of support rods 231 extending sideways are formed at the center of both sides of the movable pulley 230 so as to be stably positioned on the pair of fixed ropes 120 without losing its center.

As described above, the driving drum 210 is connected to the rotary drum 240 to automatically drive the rotary drum 240 to wind the safety rope 220. The driving motor 210 is connected to the rotary drum 240 via a rotary shaft 211. This enables the worker to automatically escape from the workplace even in a situation where he / she is unconscious due to the buried situation, thereby achieving the aim of the present invention.

Preferably, the support table 231 formed on the movable pulley 230 can be designed to be rotatable independently of the movable pulley 230 body. In this case, when the rotary drum 240 is driven by the operation of the driving motor 210 so that the moving rope is wound and unwound, the supporting rods 231 formed on both sides of the moving pulley 230 are moved horizontally on the fixed rope 120 will be. When the movable pulley 230 reaches the central portion of the fixed rope 120 while horizontally moving, the movable pulley 230 stops moving horizontally due to the weight of the movable pulley 230 itself and only the moving rope extends downward to the workplace of the worker It is possible to enter and leave the room.

In the worker emergency escape apparatus according to the present invention, the change in the environment around the worker is caused by the pressure change around the worker, and the escape unit 300 is formed in the end region of the mobile unit 200 to which the safety table 10 is connected, A sensor unit 310 for detecting a change; A transmission unit 330 for transmitting a pressure change sensed by the sensor unit 310 as a signal; A controller 320 capable of generating an arbitrary signal by an operator; A receiving unit 340 receiving a pressure change signal from the transmitting unit 330 or a signal generated by the operator from the controller 320; And a control unit for activating the mobile unit 200 to escape the worker from the workplace when the reception unit 340 receives the pressure change signal or the signal generated by the worker.

Further, the escape unit 300 may further include an alarm to sound an alarm before the operation of the mobile unit 200 of the control unit, and the controller 320 may arbitrarily stop the operation of the mobile unit 200 of the control unit And the like.

In the case of the sensor part 310, it is preferably formed in the end region of the moving rope, near the safety belt 10, and may be sensitive to pressure changes on the moving rope end. More specifically, the transmission unit 330 senses an increase in pressure through the sensor unit 310 and converts the information into a signal. The receiving unit 340 receives the transmitted signal and inputs the received signal to the control unit.

In addition, the safety base 10 is provided with a controller 320 that allows the operator to command the operation of the mobile unit 200, so that a signal can be generated by a worker. Likewise, the signal received from the controller 320 is received by the receiver 340 and input to the controller.

The control unit activates the mobile unit 200 by a pressure increase signal or a signal from the controller 320. The operation of the mobile unit 200 of the control unit allows the operator to escape from the workplace.

Preferably, the control unit is connected to the rotary drum 240 to drive the rotary drum 240 under the condition of the pressure increase signal to wind the moving rope connected to the rotary drum 240, It is possible to provide an escape apparatus that automatically escapes the worker to the buried condition by moving the worker hanging through the work area 10 to the work area.

The escape unit 300 may include a controller 320 to which an alarm and an operation stop function of the mobile unit of the operator are added. In the case of an alarm, the escape unit 300 operates the mobile unit 200 for a certain period of time before the operation of the mobile unit 200 of the control unit A kind of beeping sound is given to the worker to inform him that the escape work will be done soon.

According to an embodiment of the present invention, in the case of an alarm, information indicating that an escape operation is performed from a work site by means of vibration or the like may be transmitted to an operator. If the sound is not a valid medium for the transmission of information due to noise due to the work, the means such as vibration may be more effective.

If the operation of the mobile unit 200 through the control unit is not caused by a malfunction of the sensor or an increase in pressure is due to an emergency such as a burial situation, the operator can operate the mobile unit 200 through the controller 320 arbitrarily . The controller 320 may be provided in front of the safety table 10 so that the operator can freely operate the controller 320.

The presence of the controller 320 enables the operator to cope with the pressure increase regardless of the sensor malfunction or the buried state, thereby improving the working efficiency.

While the present invention has been particularly shown and described with reference to specific embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the following claims It will be apparent to those of ordinary skill in the art.

100: fixed unit 110: fixed drum
120: stationary rope 130: fastening means
200: mobile unit 210: drive motor
220: Safety rope 230: Movable pulley
240: rotary drum 300: escape unit
310: sensor unit 320: controller

Claims (5)

An emergency escape apparatus for preparing for burial of a worker in a workplace where there is a risk of burial,
A fixed unit installed across the work area;
A mobile unit which is moved on a fixed unit and to which an operator's safety band is connected to allow an operator to enter and exit the worksite; And
And an escape unit that operates the mobile unit according to a signal generated by an operator or caused by a change in environment around the operator to escape the operator from the workplace,
In the fixed unit,
A pair of fixed ropes running parallel and spaced apart from the work area, and supporting the mobile unit;
A pair of fixed drums wound on a fixed rope and capable of being unwound and provided on one side of a work area; And
And fixing means formed at the fixed rope end and fixed to the other side of the work area,
Wherein the fixed drum is provided with a stopper selectively limiting the withdrawal of the fixed rope so as to prevent unwinding by the load of the movable unit. delete The method according to claim 1,
The mobile unit,
A safety rope connected to a support at the end to support the operator;
A rotary drum installed between the pair of fixed drums and capable of winding and winding the safety rope;
A movable pulley which extends laterally from the center of both sides and is formed on a pair of fixed ropes so as to be supported by the support rods and transforms the extension direction of the safety rope into a lower portion of the work area; And
And a driving motor for driving the rotary drum to wind up and unwind the safety rope. The method according to claim 1,
The environmental change around the worker is made by the pressure change around the worker,
The escape unit,
A sensor unit formed in an end portion of a mobile unit to which a safety belt is connected and sensing a pressure change around the worker;
A transmitter for transmitting a pressure change sensed by the sensor unit as a signal;
A controller capable of generating an arbitrary signal by an operator;
A receiver for receiving a pressure change signal from the transmitter or a signal generated by the operator from the controller; And
And a control unit for activating the mobile unit to escape the worker from the workplace when the receiver receives the pressure change signal or the signal generated by the worker. The method of claim 4,
The escape unit,
An alarm that sounds a warning sound before the operation of the mobile unit of the control unit; Further comprising:
Wherein the controller is capable of arbitrarily stopping the operation of the mobile unit of the control unit by the operator.
KR1020150113643A 2015-08-12 2015-08-12 Worker urgent escape apparatus KR101766530B1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102277277B1 (en) * 2020-12-24 2021-07-13 한전케이피에스 주식회사 Automatic traction device of workers in confined space accidents
KR20210101779A (en) * 2020-02-11 2021-08-19 동서대학교 산학협력단 Fall prevention belt

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100731874B1 (en) * 2005-09-09 2007-06-25 성신양회 주식회사 A safety lifter for inside cleaning of silo
KR100828002B1 (en) 2007-02-20 2008-05-08 한국산업안전공단 Hoist having control device and control method

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5116815B2 (en) 2009-10-20 2013-01-09 藤井電工株式会社 Safety belt and its usage confirmation system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100731874B1 (en) * 2005-09-09 2007-06-25 성신양회 주식회사 A safety lifter for inside cleaning of silo
KR100828002B1 (en) 2007-02-20 2008-05-08 한국산업안전공단 Hoist having control device and control method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20210101779A (en) * 2020-02-11 2021-08-19 동서대학교 산학협력단 Fall prevention belt
KR102418516B1 (en) * 2020-02-11 2022-07-06 동서대학교 산학협력단 Fall prevention belt
KR102277277B1 (en) * 2020-12-24 2021-07-13 한전케이피에스 주식회사 Automatic traction device of workers in confined space accidents

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