US20140366768A1

US20140366768A1 - Sealing type screen door device

Info

Publication number: US20140366768A1
Application number: US14/345,200
Authority: US
Inventors: Dong Hyeon Kim
Original assignee: Korea Railroad Research Institute KRRI
Current assignee: Korea Railroad Research Institute KRRI
Priority date: 2011-09-30
Filing date: 2011-12-15
Publication date: 2014-12-18
Also published as: KR20130035796A; CN103796895A; CN103796895B; WO2013047953A1; KR101306278B1

Abstract

The present invention relates to a sealing type screen door device, wherein a screen door is provided so as to be encompassed by a door of a train entering a station building, and an adsorption means is provided at the screen door so as to allow the screen door to be completely sealed and fixed to the body of the train, thereby completely blocking a change in air pressure (pressure wave) generated by the entering of the train so as to prevent the inflow of pressure waves into the station building. According to the present invention, the screen door device comprises: a sliding unit provided at a screen so as to cover a screen door; and an adsorption unit provided at the sliding unit so as to be adsorbed on an outer surface of a train.

Description

TECHNICAL FIELD

The present invention relates to a sealing type screen door device, and more particularly, to a sealing type screen door device including a screen door which can encompass a door of a train entering a station building and is provided with an adsorption means to allow the screen door to be completely sealed and fixed to the body of the train, thereby completely blocking a change in air pressure (pressure wave) generated by the entering of the train so as to prevent the inflow of pressure waves into a platform.

BACKGROUND ART

In general, a screen door is installed in a train platform to secure the safety of passengers. The screen door is becoming more and more widespread because it has various advantages and effects of preventing safety-related accidents, including collisions between a train entering the station and passengers, accidents of passengers being caught in the train door gap or the gap between the train and the platform, and unpredictable situations of passengers falling onto the railway track of the platform.
As shown in FIG. 1, the conventional screen door includes a screen installed at the railway track side of the platform and separating the railway track from the platform and the screen has a door to be opened to allow passengers to get into the train when the train enters the platform.
Since the screen door is sealed, contaminated air can be prevented from flowing into the platform from the railway track while the passengers are waiting for the train on the platform.
However, if the train enters the platform and the screen door is opened to allow the passengers to get into the train, the air pressure variation (pressure wave) generated when the train enters the platform flows into the platform through the opened screen door, this causes ear noises to the passengers waiting for the train on the platform.
As soon as the screen door is opened to allow the passengers to get into the train, contaminated air in the railway track flows into the platform, impairing the passengers' health.

DISCLOSURE OF THE INVENTION

Technical Problem

The present invention has been made in an effort to solve the problems of the prior art, and it is an object of the present invention to provide a sealing type screen door device, which can prevent the inflow of the contaminated air and pressure waves from the railway track into the platform when the screen door is opened by sealing the screen door on an outer surface of a train entering the platform so as to cover the door of the train.
It is another object of the present invention to provide a sealing type screen door device, which includes adsorption means provided a sliding unit to be brought into close contact with an outer surface of a train so as to maintain a firmly fixed state between the sliding unit and an outer surface of a train when the sliding unit is brought into close contact with the outer surface of the train, thereby allowing passengers to safely get into the train.
It is still another object of the present invention to provide a sealing type screen door device, which includes dual adsorption means, thereby maintaining a screen door at a sealed state in which the screen door is more securely brought into close contact with an outer surface of a train.

Technical Solution

In accordance with an aspect of the present invention, the above and other objects can be accomplished by providing a sealing type screen door device including a sliding unit provided at a screen so as to cover a screen door; and an adsorption unit provided at the sliding unit so as to be adsorbed on an outer surface of a train.
Here, the sliding unit may have a passageway formed at its center and may include a sliding member having an installation space formed at an interior side of a front edge thereof.
Furthermore, the sliding member may further include an airtightness maintaining member formed at an open rim of the installation space.
In addition, the sliding member may have a first inlet formed thereon to allow the air to be supplied to and exhausted from the installation space of the sliding member and the sliding unit may include a pressurization device to supply and exhaust the air through the first inlet.
The sealing type screen door device may further include a filter provided between the pressurization device and the first inlet.
A plurality of first inlets and a plurality of pressurization devices may be provided.
The adsorption unit may include a fixing member positioned in the installation space formed in the sliding member of the sliding unit, and a vacuum pump connected to a second inlet formed on the fixing member to supply and exhaust the air.
Here, the sealing type screen door device may further include a filter between the pressurization device and the second inlet.
Further, a plurality of second inlets and a plurality of vacuum pumps may be provided.
In addition, an adsorption member may be provided at an end of the fixing member.
Here, the adsorption member provided on the fixing member is separated from the fixing member.

Advantageous Effects

A screen door device according to the present invention as described above is brought into close contact with an outer surface of a train entering the platform so as to cover a screen door, thereby preventing contaminated air and pressure wave from flowing into the platform from the railway track when the screen door is opened.
In addition, since the sealing type screen door device according to the present invention includes adsorption means in a sliding unit to be brought into close contact with an outer surface of a train, a firmly fixed state is maintained when the sliding unit is brought into close contact with the outer surface of the train so that passengers are allowed to safely get into the train.
Further, since the sealing type screen door device according to the present invention includes dual adsorption means, a screen door is maintained at a sealed state in which the screen door is more securely brought into close contact with an outer surface of a train.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 a view illustrating a conventional screen device;

FIG. 2 is a perspective view of a sealing type screen door device according to the present invention;

FIG. 3 is a view illustrating a sealing type screen door device according to the present invention;

FIG. 4 is a cross-sectional view illustrating an adsorption unit according to the present invention;

FIG. 5 is view illustrating an operation of a sealing type screen door device according to the present invention in a state in which a sliding member is brought into close contact with a train;

FIG. 6 is a view illustrating an operation of a sealing type screen door device according to the present invention in a state in which an adsorption member is adsorbed onto a train;

FIG. 7 is a view illustrating a sealing type screen door device according to another embodiment of the present invention;

FIG. 8 is a view illustrating a sealing type screen door device according to still another embodiment of the present invention;

FIG. 9 is a view illustrating a sealing type screen door device according to still another embodiment of the present invention; and

FIG. 10 is a view illustrating a sealing type screen door device according to still another embodiment of the present invention.

MODE FOR CARRYING OUT THE INVENTION

Hereinafter, a sealing type screen door device according to the present invention will be described in detail with reference to the accompanying drawings.
FIG. 2 is a perspective view of a sealing type screen door device according to the present invention, FIG. 3 illustrates a sealing type screen door device according to the present invention, and FIG. 4 is a cross-sectional view illustrating an adsorption unit according to the present invention.
As shown in FIGS. 2 to 4, the sealing type screen door device according to the present invention includes a sliding unit 110 formed in the shape of a rectangular tube and installed on a screen 10 so as to cover the screen door 12 installed on a platform.
Here, the sliding unit 110 is equipped with a sliding member 112 having a passageway 114 formed at the center portion thereof and connected to the screen door 12, the sliding member 112 further has an installation space 116 formed at a front edge thereof and having an opened front end.
At this time, the screen door 12 may be installed on the screen 10 or in the passageway 114 of the sliding member 112.
Further, the sliding member 112 is configured to slidably move so as to make close contact with an outer surface of a train when the train enters the platform and stops.
That is to say, the sliding member 112 is formed in the shape of flexible bellows to perform a sliding operation by means of a separate driving means (not shown).
In addition, the sliding member 112 has a first inlet 118 formed thereon to allow the air to flow into and to be exhausted from the installation space 116 of the sliding member 112.
Further, the sliding unit 110 is provided with a pressurization device 130 for allowing the air to flow into and to be exhausted from the installation space 116 of the sliding member 112 through the first inlet 118.
Here, a filter 132 is further provided between the first inlet 118 and the pressurization device 130 to purify the supplied/exhausted air.
Meanwhile, a plurality of first inlet 118 s are provided on the sliding member 112 and a plurality of pressurization devices 130 corresponding to the first inlets 118, respectively, are provided.
Here, the plurality of pressurization devices 130 may supply and exhaust the air to the first inlets 118. Alternatively, a single pressurization device 130 may be connected to the plurality of first inlets 118 to supply and exhaust the air.
Therefore, when the train enters the platform and stops, the sliding member 112 slidably moves toward the train and are then close contact with the outer surface of the train. Here, the sliding member 112 is in contact with an outer surface of an edge of the door of the train so as to cover the door of the train.
An adsorption unit 210 is provided in the installation space 116 of the sliding member 112 to be adsorbed on the outer surface of the train.
Here, the adsorption unit 210 includes a fixing member 212 having one side protruding to the installation space 116 of the sliding member 112.
Further, an adsorption member 214 is formed at an end of the fixing member 212, that is, at an end of the fixing member 212 positioned in the installation space 116.
In addition, a second inlet 216 passing through the fixing member 212 and the adsorption member 214 is formed, and a vacuum pump 220 is provided for supplying and exhausting the air through the second inlet 216.
Here, a filter 222 is provided in the second inlet 216 to filter foreign materials contained in the air supplied/exhausted by the vacuum pump 220.
In addition, a plurality of second inlets 216 are provided and a plurality of vacuum pumps 220 correspond to and are connected to the second inlets 216, respectively.
Here, the plurality of vacuum pumps 220 for supplying and exhausting the air to the plurality of second inlets 216 may be connected to the second inlets 216, respectively, to supply and exhaust the air. Alternatively, a single vacuum pump 220 may be connected to the plurality of second inlets 216 to supply and exhaust the air.
Therefore, if the air remaining inside the adsorption member 214 is suctioned and exhausted by driving the vacuum pump 220 in a state in which the sliding member 112 is close contact with the outer surface of the train, the adsorption member 214 becomes a vacuum state so that the state in which the adsorption member is adsorbed on the outer surface of the train is maintained.
An operation of the sealing type screen door device according to the present invention constructed as above is described below.
FIG. 5 is a view showing an operation of the sealing type screen door device according to the present invention and shows a state in which the sliding member is in close contact with the train, and FIG. 6 is a view illustrating an operation of the sealing type screen door device according to the present invention and shows a state in which the adsorption member is adsorbed onto the train.
As shown in the above drawings, in the sealing type screen door device according to the present invention, when the train enters the platform and stops, the sliding member 112 and the adsorption member 214 are moved forward by the driving means and then come into close contact with the outer surface of the train.
In such a state, if the air remained in the installation space 116 of the sliding member 112 and the air remained in the adsorption member 214 are sucked and exhausted by driving the pressurization device 130 and the vacuum pump 220, the inside of the installation space 116 and the inside of the adsorption member 214 become the vacuum state and the sliding member and the adsorption member are adsorbed on the outer surface of the train.
In the state in which the sliding member 112 is firmly adsorbed on the outer surface of the train so as to cover the door of the train as above and the sliding member is completely sealed from the railway track, the screen door 12 and the door of the train are opened and the passengers get into the train through the passageway 114 of the sling member 112.
Meanwhile, after all of the passengers on the platform get into the train and the door of the train and the screen door 12 are shut, and the air is supplied to the installation space 116 of the sliding member 112 and the inside of the adsorption member 214 by means of the pressurization device 130 and the vacuum pump 220 to release the vacuum state, so that the sliding member 112 and the adsorption member 214 are separated from the train.
In such a manner, the sliding member 112 separated from the train is retracted by the driving means and is then restored to its original position.
As described above, after the train enters the platform and stops and before the passengers get into the train, the screen door 12 and the door of the train are connected to each other by the sliding member 112 to completely block a gap between the screen door 12 and the door of the train, thereby preventing the pressure wave, that is generated when the train enters the platform, from flowing into the platform on which the passengers are waiting for the train and the inside of the train.
In addition, it is possible to prevent the contaminated air in the railway track from flowing to the platform where the passengers are waiting for the train and to the inside of the train, thereby maintaining the air of the platform and the indoor air of the train in a fresh and clean state all the time.
Meanwhile, when the sliding member 112 comes into close contact with and is fixedly absorbed to the train, the adsorption member 214 is primarily adsorbed and fixed to the train by the operation of the vacuum pump 220 and the installation space 116 of the sliding member 112 is then secondarily adsorbed and fixed to the train by the operation of the pressurization device 130, so that a more securely adsorbed state can be maintained, thereby allowing the passengers to safely get into the train and preventing the inflow of the pressure wave and contaminated air.
FIG. 7 illustrates the sealing type screen door device according to another embodiment of the present invention.
In order to absorb the shock and maintain a sealing state, as shown in this drawing, an airtightness maintaining member 120 is provided on a rim of the sliding member 112 forming the installation space 116.
The operation of the sealing type screen door device according to this embodiment constructed as above is the same as that of the previously described embodiment, so that repeated explanation thereof will be omitted.
When the sliding member 112 is brought into contact with the outer surface of the train, however, the sliding member is in securely contact with the outer surface of the train by the airtightness maintaining member 120 so that the contacting force between the sliding member and the train is increased and it is possible to prevent the train and the sliding member 112 from being damaged due to collision therebetween when the sliding member and the train make contact with each other.
FIG. 8 illustrates the sealing type screen door device according to still another embodiment of the present invention.
As shown in this drawing, the adsorption member 214 is separated from the fixing member 212 of the adsorption unit 210 and is coupled with and fixed to the fixing member 212.
Therefore, if the adsorption member 214 is hardened or damaged due to a prolonged use, it can be easily replaced with new one and repaired.
The operation of the sealing type screen door device according to this embodiment constructed as above is the same as that of the previously described embodiment, and repeated explanation thereof will be omitted.
In addition, as shown in FIGS. 9 and 10, the pressurization device 130 and the vacuum pump 220 for supplying the air and exhausting the air from the sliding member 112 and the adsorption member 214 may be variously modified.
In other words, as shown in FIG. 9, only one pressurization device 130 may be provided for supplying the air to and exhausting the air from the first inlet 118 through which the air is supplied to and exhausted from the installation space 116 of the sliding member 112 and the second inlet 216 through which the air is supplied to and exhausted from the inside of the adsorption member 214.
In addition, as shown in FIG. 10, the first inlet 118 and the second inlet 216 are connected to only one vacuum pump 220 to perform air supply and exhaustion operations.
Further, the first inlet 118 of the sliding unit 112 and the second inlet 216 of the adsorption unit 210 may be connected to each other by means of only one pressurization device 130 to perform air supply and exhaustion operations.
Although the preferred embodiments of the sealing type screen door device according to the present invention are described, the present invention is not limited to the above embodiments, many modifications and variations can be made within the claims, the detail description and the accompanying drawing, and they are fallen within the scope and spirit of the present invention.

Claims

1. A sealing type screen door device comprising;

a sliding unit provided on a screen so as to cover a screen door; and

an adsorption unit provided at the sliding unit so as to be adsorbed on an outer surface of a train.

2. The sealing type screen door device of claim 1, wherein the sliding unit includes a sliding member having a passageway formed at a center portion thereof and an installation space formed at an interior side of a front edge thereof.

3. The sealing type screen door device of claim 2, wherein the sliding member further includes an airtightness maintaining member provided at an open rim of the installation space.

4. The sealing type screen door device of claim 2, wherein the sliding member has a first inlet formed therein to allow the air to be supplied to and exhausted from the installation space and a pressurization device supplying and exhausting the air through the first inlet.

5. The sealing type screen door device of claim 4, further comprising a filter provided between the pressurization device and the first inlet.

6. The sealing type screen door device of claim 4, wherein the plurality of first inlets and the plurality of pressurization devices are provided on the sliding member.

7. The sealing type screen door device of claim 2, wherein the adsorption unit includes a fixing member positioned in the installation space of the sliding member of the sliding unit and having a second inlet formed therein, the adsorption is provided with a vacuum pump connected to the second inlet to supply and exhaust the air.

8. The sealing type screen door device of claim 7, further comprising a filter provided between the vacuum pump and the second inlet.

9. The sealing type screen door device of claim 7, wherein a plurality of second inlets and a plurality of the vacuum pumps are provided.

10. The sealing type screen door device of claim 7, wherein the fixing member has an adsorption member provided at an end thereof.

11. The sealing type screen door device of claim 10, wherein the adsorption member provided on the fixing member is separated from the fixing member.

12. The sealing type screen door device of claim 2, wherein the sliding unit is formed in the shape of a rectangular tube.

13. The sealing type screen door device of claim 7, wherein the sliding unit is formed in the shape of a rectangular tube.

14. The sealing type screen door device of claim 7, wherein the sliding member further includes an airtightness maintaining member provided at an open rim of the installation space.

15. The sealing type screen door device of claim 7, wherein the sliding member has a first inlet formed therein to allow the air to be supplied to and exhausted from the installation space and a pressurization device supplying and exhausting the air through the first inlet.