KR20160133208A - Falling speed control system - Google Patents
Falling speed control system Download PDFInfo
- Publication number
- KR20160133208A KR20160133208A KR1020150065944A KR20150065944A KR20160133208A KR 20160133208 A KR20160133208 A KR 20160133208A KR 1020150065944 A KR1020150065944 A KR 1020150065944A KR 20150065944 A KR20150065944 A KR 20150065944A KR 20160133208 A KR20160133208 A KR 20160133208A
- Authority
- KR
- South Korea
- Prior art keywords
- safety curtain
- oil
- safety
- speed
- curtain
- Prior art date
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Classifications
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C2/00—Fire prevention or containment
- A62C2/06—Physical fire-barriers
- A62C2/10—Fire-proof curtains
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47G—HOUSEHOLD OR TABLE EQUIPMENT
- A47G5/00—Screens; Draught-deflectors
- A47G5/04—Fire screens
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63J—DEVICES FOR THEATRES, CIRCUSES, OR THE LIKE; CONJURING APPLIANCES OR THE LIKE
- A63J1/00—Stage arrangements
- A63J1/02—Scenery; Curtains; Other decorations; Means for moving same
Landscapes
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Emergency Lowering Means (AREA)
Abstract
Description
The present invention relates to a safety curtain for controlling the self-falling speed of a safety curtain, which is capable of securing a time for escape by blocking the stage and the audience seat when an emergency situation such as a fire occurs, A falling speed control system,
The speed of the wire drum wound around the safety curtain connected to the safety curtain is monitored step by step so that the safety curtain can be rapidly deployed through the falling of the weight and the minimum time for the evacuator to escape out of the stage is ensured And more particularly to a falling speed control system of a safety curtain comprising a hydraulic brake.
In general, a theater where performances of various genres such as drama and opera are performed, and a meeting place where various events are performed are made up of a stage and audience seats in which the audience seats to observe performances and events on this stage.
In this stage, various lighting devices, fireworks, flames, etc. are installed and used for performances and performances to produce dramatic effects. As these instruments are installed on the stage, the risk of fire is latent.
Therefore, when a dangerous situation such as a fire occurs on the stage in recent years, a safety curtain spreads on the front of the stage, thereby blocking time between the stage and the audience, securing time for the audience to evacuate and preventing a fire from spreading .
Unlike ordinary stage curtains, these safety curtains are installed at the upper part of the stage so that, when an emergency occurs, the safety curtains are automatically installed so that the safety curtains must be quickly installed to prevent the fire from being scattered.
However, safety curtains are made of special materials such as fire-proof materials and they are very large in size, and their weight is heavy enough to reach hundreds of kilograms to several tons, so that the free fall speed is very fast, A technique of decelerating at a constant height after a rapid fall so as not to be injured by collision with a safety curtain is required.
In addition, since the safety curtain is required to perform safety inspection at regular intervals in accordance with its characteristics of use, it is very important to control the falling speed because the structure is likely to be damaged if the speed of the safety curtain is not controlled.
Especially, for the rapid deployment of safety curtains and safe fall, it is allowed only in the case of installing safety curtains that satisfy the conditions of minimizing the opening time and the final speed reducing condition when falling down in various parts of Europe. As the legislation is being prepared, there is a need for speed control technology for safety curtains.
As a related art for controlling the falling speed of a safety curtain, there are disclosed related arts as disclosed in Published Unexamined Patent Application No. 10-2003-0070527 (published on Aug. 30, 2003), Registered Patent No. 10-1058484 (Registered on Aug. 16, 2011) 10-1999-0069254 (Publication date 1999.09.06.), Registration Practical Utility Model 20-0448903 (Registration date 2010.05.20.), Etc.,
The above-described techniques are techniques for constantly reducing the rotational speed of a wire drum around which a wire connected to a safety curtain is wound using a centrifugal brake or a disc brake.
However, according to the above-described techniques, when the safety curtain falls, the falling speed is kept constant and decelerated,
It is not a technology to control the deceleration of the falling speed by the height interval when reaching the stage or the ground in order to keep the speed fast during the initial dropping for the rapid deployment of the safety curtain. There is a limit to solving the purpose.
Accordingly, the present invention has been made to solve the above-mentioned problems,
In addition to the rapid deployment of safety curtains, it is possible to decelerate to a slower speed at a certain height from the ground to complete the fall, thereby ensuring that the audience is able to evacuate, while dropping the safety curtain drop system, Which is capable of gradually controlling the dropping speed of the safety according to the height of the safety curtain.
In particular, according to the present invention, the speed of falling of the safety curtain is decelerated and controlled in steps, thereby preventing the safety curtain from clogging the stage and the audience seat, preventing the underexposure that has not yet been evacuated and preventing the safety curtain from escaping due to collision with the safety curtain Which is capable of decelerating and controlling the rotation speed of the wire drum by the hydraulic brake so as to prevent a self-injury.
The present invention also relates to a method of controlling the speed of the impeller which rotates together with the wire drum by controlling the discharge flow rate of the oil so that the speed control of the hydraulic brake can be stably performed by mixing the principle of Pascal and the principle of the water pump, And a control device for controlling the falling speed of the safety curtain.
In addition, the present invention provides a solenoid valve comprising a plurality of open / close valves for opening / closing a plurality of oil outlets so as to facilitate deceleration and control of a falling safety curtain at a desired speed by varying the discharge flow rate of the oil controlled by the control unit And an object of the present invention is to provide a falling speed control system of a safety curtain.
In the meantime, according to the present invention, since the closing operation of the opening / closing valve is precisely performed at a desired height, and a limit switch for measuring the height through the number of revolutions of the wire drum to prevent the deceleration failure or the malfunction of the hydraulic brake, And to provide a speed control system.
The present invention also provides a safety curtain falling speed control system capable of safely controlling the speed at which the safety curtain reaches the ground after falling and securing the safety stability of the safety curtain and preventing a human accident due to a rapid fall. And to provide the above objects.
In order to achieve the above-mentioned object, the safety control system of the safety curtain according to the present invention comprises:
This is for controlling the falling speed of the safety curtain installed on the stage when the emergency curtain falls due to its own weight,
A safety curtain installed on the stage; And
A wire drum on which a driving wire connected to the safety curtain is wound,
And driving means including a hydraulic brake for gradually reducing the rotational speed of the wire drum when the safety curtain falls.
In the safety control system of the safety curtain according to the present invention,
The hydraulic brake
A housing having an oil inflow portion, a second oil discharge portion, and an oil retention space formed between the oil inflow portion and the oil discharge portion; and a housing connected to the wire drum to rotate together with the wire drum in the oil retention space A hydraulic motor composed of an impeller,
And a control unit installed on the oil discharge unit to control the rotational speed of the impeller by controlling the flow rate of the oil discharged to the oil discharge unit in a stepwise manner.
Further, in the safety control system of the safety curtain according to the present invention
The control unit
A valve body connected to the oil discharge portion and having a plurality of oil discharge ports,
And a solenoid valve comprising an open / close valve provided to open and close the oil discharge port, respectively.
In addition, in the safety control system of the safety curtain according to the present invention
Wherein the driving means includes a limit switch for detecting the number of revolutions of the wire drum and for sequentially closing the opening / closing valve according to a drop height of the safety curtain.
The safety curve control system of the safety curtain according to the present invention controls the speed of rotation of the wire drum on which the driving wire is wound through the hydraulic brake step by step in decelerating and controlling the falling speed of the safety curtain, It is a very useful invention that can safely land the safety curtain when it reaches the stage or the ground, while preventing the safety curtain from being opened very quickly, and satisfying both the prevention of fire spread and the safe evacuation of those concerned.
In particular, since the safety curtain falling speed control system according to the present invention decelerates and controls the safety curtain in a stepwise manner from a predetermined height under the primary control of the free fall speed of the safety curtain, There is an effect that stable operation can be achieved.
In addition, the falling speed control system of the safety curtain according to the present invention is easy to install and check, has less risk of malfunction, and is easy and accurate to control the falling speed and deceleration section height, And it is an invention having excellent versatility and utility.
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a front view schematically showing a safety curtain falling speed control system according to the present invention; FIG.
BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a safety curtain descent speed control system,
3 is a view for explaining a control part of a hydraulic brake in a safety curtain falling rate control system according to the present invention.
FIGS. 4 to 6 are front views showing an operation state of the safety curtain by the falling height section in the safety curtain falling speed control system according to the present invention. FIG.
Fig. 7 is a photograph of a prototype of the present invention. Fig.
While the present invention has been described in connection with certain exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the invention. It is to be understood, however, that the invention is not intended to be limited to the particular forms disclosed, but on the contrary, is intended to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.
In the drawings, the same reference numerals are used for the same reference numerals, and in particular, the numerals of the tens and the digits of the digits, the digits of the tens, the digits of the digits and the alphabets are the same, Members referred to by reference numerals can be identified as members corresponding to these standards.
In the drawings, the components are expressed by exaggeratingly larger (or thicker) or smaller (or thinner) in size or thickness in consideration of the convenience of understanding, etc. However, It should not be.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise.
In the present application, the term " comprising " or " consisting of ", or the like, refers to the presence of a feature, a number, a step, an operation, an element, a component, But do not preclude the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof.
Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the contextual meaning of the related art and are to be interpreted as either ideal or overly formal in the sense of the present application Do not.
It is to be understood that the first to second aspects described in the present specification are merely referred to in order to distinguish between different components and are not limited to the order in which they are manufactured, It may not match.
In describing the falling rate control system of the safety curtain according to the present invention, for the sake of convenience, when an unambiguous approximate direction reference is specified with reference to FIG. 1, the upward, downward, leftward and rightward directions Unless otherwise specified in the Detailed Description of the Invention and in the claims that relate to the other Drawings.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a safety curtain falling speed control system according to the present invention will be described with reference to the accompanying drawings.
The safety curtain falling rate control system according to the present invention is a safety curtain falling rate control system in which a safety curtain installed at the stage top (at a height of about 11 m or more on the stage) in an emergency situation such as a fire, To control the falling speed thereof,
A
The
2, the driving means 20 of the present invention includes a driving
And a hydraulic brake 23 for decelerating control of the
The driving means 20 is installed on one side of the upper structure S1 on which various lighting devices and the like are installed on the stage S and the
FIG. 2 is a side view showing the driving means 20 of the present invention. More specifically, referring to FIG. 2, the driving means 20 of the present invention includes:
The
A
A
A
A
The rotation speed of the
The
The
The
The
The
Although not shown in the drawing, a handle capable of manually controlling the locking or unlocking of the
The
The
These
Next, when an emergency situation occurs, the
The hydraulic brake 23 of the present invention decelerates and controls the rotational speed of the
3, there are provided one side
And a
The
The
The impeller 26 is connected to the
That is, when the flow rate of the oil discharged from the
The rotation speed of the
In this case, if the oil discharge flow rate controlled by the
In the drawings of the present specification, when the
The third height H4 is a height at which the lower end of the
The second height H3 is the minimum height (interval) at which the
The first height H2 is a safety height at which the
Therefore, the
From the first height (H2) to the second height (H3), it falls at the first decelerated speed, securing the time for people to evacuate,
From the second height (H3) to the third height (H4), it drops at a second decelerated speed, thereby ensuring space and time for people to relieve impact caused by falling and finally to evacuate.
The
A
And a
The
When the first height H2 is reached, one opening /
When the second height H3 is reached, the two opening and
When the third height H4 is reached, the three opening /
The driving means 20 of the present invention includes a limit switch L for detecting the rotation speed of the
The limit switch L is provided at one end of the
Reference numeral H denotes a manual handle, which enables electrical malfunction or manual rotation of the
2, the structure of the driving means 20 is shown to be coupled to the
Next, the operation and effect of the falling speed control system of the
When the driving
When an emergency situation such as a fire occurs on the stage S due to a carelessness during performances or performances while the
When the
The
At this time, since the opening and
When the
The
Then, when the
The
As a result, the falling
The
The
The time required for the
In this case, the drop time from the first height (H2) to the second height (H3) is maintained between about 10 seconds and 20 seconds during the entire fall time, and the third height (H4) Falls within a range of 5 seconds to 10 seconds so as to secure time for a performer or persons concerned on the stage S to evacuate out of the stage S,
Particularly, while the
The conventional structure of the
While the present invention has been described with reference to the accompanying drawings, it is to be understood that the scope of the present invention is not limited to the details of various modifications, , Changes and substitutions are to be construed as falling within the scope of protection of the present invention.
S: Stage S1: Superstructure
R1: guide roller
10: Safety curtain
20: driving means 21: driving motor
22:
22B:
22b:
23: Hydraulic brake 24: Hydraulic motor
25:
25b:
26: impeller 26a: wing
27:
27B:
27a, 27b, 27c: Oil discharge port 28: Drum brake
29: Centrifugal brake H: Manual handle
L: Limit switch
Claims (4)
A safety curtain installed on the stage; And
A wire drum on which a driving wire connected to the safety curtain is wound,
And driving means including a hydraulic brake for gradually reducing the rotational speed of the wire drum when the safety curtain falls down.
The hydraulic brake
A housing having an oil inflow portion, a second oil discharge portion, and an oil retention space formed between the oil inflow portion and the oil discharge portion; and a housing connected to the wire drum to rotate together with the wire drum in the oil retention space A hydraulic motor composed of an impeller,
And a control unit installed on the oil discharge unit to control the rotational speed of the impeller by adjusting the flow rate of the oil discharged to the oil discharge unit in a stepwise manner.
The control unit
A valve body connected to the oil discharge portion and having a plurality of oil discharge ports,
And a solenoid valve composed of open / close valves installed to open / close the oil discharge ports, respectively.
Wherein the driving means includes a limit switch for detecting the number of revolutions of the wire drum and for sequentially closing the opening / closing valves according to the drop height of the safety curtain.
Priority Applications (1)
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KR1020150065944A KR101719600B1 (en) | 2015-05-12 | 2015-05-12 | Falling speed control system |
Applications Claiming Priority (1)
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KR1020150065944A KR101719600B1 (en) | 2015-05-12 | 2015-05-12 | Falling speed control system |
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Publication Number | Publication Date |
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KR20160133208A true KR20160133208A (en) | 2016-11-22 |
KR101719600B1 KR101719600B1 (en) | 2017-03-31 |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108227588A (en) * | 2018-01-26 | 2018-06-29 | 浙江圣火智远文化发展有限公司 | A kind of curtain opener suspension system |
KR102048195B1 (en) * | 2018-12-07 | 2020-01-08 | 한국산업기술시험원 | Emergency Falling system for fire-protection screen |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR102514836B1 (en) * | 2021-09-13 | 2023-03-29 | 김은숙 | Stage Equipment Elevation System |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07150871A (en) * | 1993-11-26 | 1995-06-13 | Tochigi Fuji Ind Co Ltd | Drive device for shutter |
KR101058484B1 (en) * | 2010-11-10 | 2011-08-24 | 제이엠스테이지(주) | Appratus for fire prevention of stage and method of controlling the same |
-
2015
- 2015-05-12 KR KR1020150065944A patent/KR101719600B1/en active IP Right Grant
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07150871A (en) * | 1993-11-26 | 1995-06-13 | Tochigi Fuji Ind Co Ltd | Drive device for shutter |
KR101058484B1 (en) * | 2010-11-10 | 2011-08-24 | 제이엠스테이지(주) | Appratus for fire prevention of stage and method of controlling the same |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108227588A (en) * | 2018-01-26 | 2018-06-29 | 浙江圣火智远文化发展有限公司 | A kind of curtain opener suspension system |
KR102048195B1 (en) * | 2018-12-07 | 2020-01-08 | 한국산업기술시험원 | Emergency Falling system for fire-protection screen |
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KR101719600B1 (en) | 2017-03-31 |
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