KR20220103562A - Portable emergency escape device - Google Patents

Abstract

The present invention provides a portable emergency escape device including: a casing; a drum which is rotatably installed inside the casing and around which a wire is wound; a reduction gear which is connected to the drum; a direct current (DC) motor which has a rotation shaft connected to the reduction gear; and a seat belt which is worn by a user. According to the present invention, at least one resistance element for determining a descending speed is connected between both ends of a power input terminal of the DC motor, and when the both ends of the power input terminal of the DC motor are shorted, a brake function is provided. At least two of the drums have rotation shafts disposed in the casing in series or parallel to each other, and when in use, at least two wires are unwound and descend to the outside of the casing.

Description

Portable emergency escape device {PORTABLE EMERGENCY ESCAPE DEVICE}

The present invention relates to a portable emergency evacuation device, and more particularly, to a portable emergency evacuation device that allows a user to safely escape to the ground by descending using a wire rope through a window of a building when an emergency such as a high-rise building fire occurs. It's about the device.

In general, when an emergency such as a fire occurs in a building such as an apartment or a high-rise building, an emergency escape operation is performed to evacuate using an elevated fire-fighting ladder or to jump over the air mat after installing an air mat on the ground.

However, escaping using an elevated ladder has a limitation in space that requires a large space to install the elevated ladder, and in the case of a high-rise building that cannot be reached by the elevated ladder, it has the disadvantage of being useless.

In addition, there is a problem that the air mat is limited in that it requires a large number of people and a large space when installed, and in the case of a high-rise building, the escape time is delayed due to the anxious psychology of the escapee, and it is difficult to jump off the air mat accurately due to the wind.

Alternatively, a drum rotatably installed inside the casing and wound with a wire, a reduction gear for reducing the rotational speed of the drum in case of an emergency escape while connected to the drum, is connected to the end of the wire and fixed to a pole of a high-rise building An emergency escape device comprising a hook and a seat belt connected to the lower end of the casing to bind the user's body has been proposed.

As described above, the emergency escape device using a wire has an advantage in that, when a fire occurs, it can quickly descend through the window to make an emergency escape. However, since the falling speed is reduced using only the reduction gear, the falling speed is not constant, and thus the user not only feels uneasy, but also has various problems such as the inability to use the emergency escape device stably.

As another alternative, in Patent Document 1, which the applicant submitted and was granted a patent, it is possible to descend while maintaining a constant descending speed regardless of the weight of the escapee by using the braking resistor of the DC motor, and the power terminal of the DC motor is shorted to each other. Disclosed is an emergency escape device using a braking resistor of a DC motor capable of performing a brake function by doing so.

However, the one-line type emergency escape device presented in Patent Document 1 has a problem in that the user's body rotates due to twisting of the wire during descent.

In addition, when the emergency evacuation device is used for a wartime parachute operation, a situation may occur that the user cannot keep an eye on the enemy due to the rotation of the user's body. It is difficult to

In addition, in case of emergency evacuation from a high-rise building due to fire, etc., if a young child is evacuated alone first, he or she can strongly resist with extreme fear, so a means is required for both children and parents to use the emergency escape device.

Patent Document 1: Korean Patent Publication No. 10-1025717 (2011.03.30. Announcement)

The present invention has been devised to solve the above problems, and has a structure that performs braking using a braking resistor of a DC motor during descent and prevents the user's body from rotating by a wire during descent. Its purpose is to provide

Another object of the present invention is to provide a portable emergency escape device having an improved structure to support a high load.

In order to achieve the above object, the present invention provides a casing; A seat belt worn by a user is provided, and at least one resistance element for determining a descending speed is connected between both ends of the power input terminal of the DC motor, and when both ends of the power input terminal of the DC motor are short-circuited, a brake function is provided The drum is a portable emergency escape device, characterized in that at least two or more of the rotating shafts are arranged in the casing in series or parallel to each other, and descend while at least two or more wires are unwound to the outside of the casing when in use. to provide.

A plurality of resistance elements having different resistance values are disposed between both ends of the power input terminal of the DC motor, and a speed control unit for selecting a resistance value of the resistance element to adjust a descending speed may be installed on one side of the casing.

To the end of the wire, a binner that can be hung on the wire may be connected to a rod-shaped support fixed to the building or to be hung on the wire in a state in which the wire is wound around a building pillar.

The seat belt is made of a ring shape into which the user's arm can be inserted, and two can be attached to the casing so that two users can use it together.

The casing may be fixed to one side of the building and the seat belt may be connected to an end of the wire that is unwound from the drum.

The two seat belts are attached and can be worn in an X-shape or vertical form on both armpits of the user.

It is preferable that the two seat belts have the same shape and size so that the two seat belts can be attached and overlapped.

Preferably, both of the seat belts can be connected to each other or detachable from the front of the chest while the user's arms are inserted into the seat belt.

The wire may be covered with a non-combustible coating or a protective tube for a part of the length section or the entire length.

A handle may be attached to one side of the seat belt.

It is preferable that both ends of the rotating shaft of the drum are supported in the casing so that the user's load is not shifted to one side of the reduction gear.

The wires unwound from the two or more drums may be connected to one biner.

Additionally, at least a portion of the wire may be provided with a light emitting member.

The portable emergency escape device according to the present invention has the following effects.

First, it is possible to prevent the user's body from rotating by simultaneously releasing the wire and simultaneously releasing two or more wires from the casing using the braking resistor generated from the DC motor to brake the descent speed while descending.

Second, since it can support a high load by two or more wires, children and their parents can descend at the same time by hanging from their respective seat belts in case of an emergency escape.

Third, when the emergency escape device is used for a wartime parachute operation, the user's body does not rotate, so it is possible to maintain balance and to stably support heavy armaments and combat equipment.

The following drawings attached to this specification illustrate preferred embodiments of the present invention, and serve to further understand the technical spirit of the present invention together with the detailed description of the present invention to be described later, so that the present invention is described in such drawings should not be construed as being limited only to
1 is a perspective view showing the exterior of a portable emergency escape device according to an embodiment of the present invention.
FIG. 2 is a perspective view illustrating an internal configuration by removing the cover from FIG. 1 .
3 is a front view of FIG. 2 ;
4 is a partially enlarged front view illustrating an example in which a roller-shaped guide member is added in FIG. 3 .
5 is a perspective view showing the exterior of a portable emergency escape device according to another embodiment of the present invention.
6 is a perspective view illustrating an internal configuration by removing the cover in FIG. 5 .
7 and 8 are connection diagrams schematically illustrating a configuration for braking and stopping a DC motor.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, the terms or words used in the present specification and claims should not be construed as being limited to conventional or dictionary meanings, and the inventor should properly understand the concept of the term in order to best describe his invention. Based on the principle that it can be defined, it should be interpreted as meaning and concept consistent with the technical idea of the present invention. Therefore, the configuration shown in the embodiments and drawings described in the present specification is merely the most preferred embodiment of the present invention and does not represent all of the technical spirit of the present invention, so at the time of the present application, various It should be understood that there may be equivalents and variations.

1 is a perspective view showing the exterior of a portable emergency escape device according to a preferred embodiment of the present invention, FIG. 2 is a perspective view showing the internal configuration by removing the cover in FIG. 1, and FIG. 3 is a front view of FIG. .

1 to 3 , a portable emergency escape device according to a preferred embodiment of the present invention includes a casing 100 having a predetermined shape, a casing 100 rotatably installed inside the casing 100, and a wire 103 is wound. At least two or more drums 101, a reduction gear 109 that is connected to each drum 101 to reduce the rotation speed of the drum 101 in case of an emergency escape, and a rotation shaft is connected to each reduction gear 109, A DC motor 102, a resistance element 106 connected to the DC motor 102, and a hook connected to the end of each wire 103 and hooked to a predetermined support structure fixed to a high-rise building (105) and a seat belt 104 connected to the lower end of the casing 100 and fixing the upper body of the escapee.

At least two drums 101 are arranged in series or parallel in the casing 100 . Hereinafter, the configuration of the invention will be described focusing on an embodiment in which two drums 101 are arranged in series in the casing 100 . The drum 101 is passively rotated by the force pulling the wire 103 by the descent of the escapee. It is preferable that both ends of the rotating shaft of each drum 101 are supported in the casing 100 to prevent the user's load from being drawn to one side of the reduction gear 109 .

As the wire 103, a string of various materials, including a conventional rope-type wire, may be employed. Additionally, the wire 103 is covered with a non-combustible coating or protective tube for a part of the length section or the entire length to ensure flame resistance in case of fire. In addition, the wire 103 is provided with a light emitting member (not shown) such as an LED, an EL wire, etc. at least in part to ensure visibility for identifying a descending state in case of a fire, cloudy day, night, etc.

As shown in FIG. 4 , a guide member 110 consisting of a pair of rollers is fixed to the casing 100 through a predetermined bracket 111 around each drum 101 to release the wire 103 . It is desirable to keep it constant. Alternatively, the guide member 110 may be replaced with a single roller or a ring-shaped guide member 110 through which the wire 103 passes. According to this configuration, even if the positions of the wires 103 released from each of the two drums 101 are different from each other, the effect of always being released at a predetermined point (preferably, the middle point) based on the longitudinal direction of the drum 101 is obtained. Because it can be obtained, it is possible to prevent the phenomenon of being out of balance when the escapee hangs.

As shown in FIGS. 5 and 6 , the wires 103 that are respectively unwound from the two drums 101 may be connected to one biner.

The reduction gear 109 reduces the descending speed of the escapee by a predetermined gear ratio and transmits it to the rotating shaft. The reduction gear 109 may be configured by various known gear assemblies.

The DC motor 102 generates a braking force by rotating a rotating shaft by an external force. The DC motor 102 is not actively rotated by an external power source, but the rotating shaft is passively rotated together with the drum 101 by the pulling force of the wire 103 generated due to the descent (free fall motion) of the escapee. rotate

At least one resistance element 106 is connected between both ends of the power input terminal of the DC motor 102 to determine the descending speed. Therefore, in case of emergency evacuation, the descent speed can be kept constant regardless of the body weight of the evacuator due to the braking resistance and the descent can be descended. can provide Here, both ends of the power input terminal are electrically connected to a separate switch 107 and used, and when the switch 107 is turned on, the DC motor 102 is short-circuited and acts as a brake. The switch 107 is installed to be exposed to the outside of the casing 100 .

The braking force generated by the power generation of the DC motor 102 changes according to the resistance value of the resistance element 106 . That is, when the resistance value of the resistance element 106 connected to the DC motor 102 is relatively large, the energy consumed as Joule heat in the resistance element 106 is large and the braking force of the DC motor 102 is weak, so the descent speed is increased. , when the resistance value is relatively small, the energy consumed by Joule heat is small and the braking force of the DC motor 102 is large, so the descending speed is slowed down. When the resistance value is 0, since it is a short circuit, the braking force is large and the descent is substantially stopped.

For example, when the resistance value of the resistance element 106 is relatively small, about 100Ω, the braking force generated from the DC motor 102 is large, so that the drum 101 connected to the rotating shaft of the DC motor 102 rotates slowly and the wire 103 ) is released slowly, so the descent occurs slowly. Conversely, when the resistance value of the resistance element 106 is gradually increased, such as 200 Ω, 300 Ω, 400 Ω, etc., the braking force generated from the DC motor 102 is gradually weakened and the descent is gradually accelerated. As described above, the resistance value of the resistance element 106 determines the descending speed, so it is preferable to set a suitable resistance value so that the escapee can feel safe.

As shown in FIG. 7, a switch 107 for selectively operating a brake (short-circuit state) is connected to both ends of the power input terminal of the DC motor 102, and the power input is parallel to the switch 107. A resistance element 106 having a predetermined resistance value for determining the falling speed is connected across the terminals. Alternatively, as shown in FIG. 8 , both ends of the power input terminal of the DC motor 102 are connected to a switch 107 for selectively operating a brake (short-circuit state), and to be connected in parallel with the switch 107. A plurality of resistance elements 106 having different resistance values are selected between both ends of the power input terminal and a specific resistance element 106 is selected from among the plurality of resistance elements 106 to adjust the falling speed. A speed control unit 108 for adjusting the speed may be connected.

The seat belt 104 is formed in a ring shape into which the user's arm can be inserted, and preferably two are attached to the casing 100 so that two users can use it together. This seat belt 104 is worn in an X-shape or vertical form on both armpits of the user.

The two seat belts 104 are attached to the casing 100 and may be configured to have two shapes and sizes to match each other so that they can be used overlapped. In addition, it is also possible to connect or attach both seat belts 104 to each other through a predetermined fastener at the front of the chest in a state where both arms of the user are inserted into the seat belt 104 .

In use, when the casing 100 is fixed to one side of the building, the seat belt 104 may be connected to the end of the wire 103 unwound from the drum 101 . In addition, a ring-shaped safety handle may be attached to one side of the seat belt 104 so that the user can hold and hang it by hand during use.

In case of emergency escape, the hook 105 in the form of a binner connected to the ends of the two wires 103 is fixed by hanging on the pillar side, and the seat belt 104 is fastened to the upper body of the user (escaper), that is, the armpit. Specifically, each binner is hung on the rod-shaped support installed on the terrace of the building, or the wire 103 is hung on the wire 103 in a state in which the building pillar or the rod-shaped support is wound. When two seat belts 104 are attached to the casing 100, it is also possible for a child and an adult to descend together.

When the user tries to escape by taking their foot off the building in the ready state as described above, the two drums 101 are rotated slowly by the braking force inversely proportional to the braking resistance value of the DC motor 102 and the two rows of wires 103 ) is released, so the escapee can safely descend at the set descent speed.

When the user almost reaches the ground and wants to stop at a desired position, the switch 107 is turned on to short both ends of the power input terminal of the DC motor 102. This occurs in each DC motor 102 Since the rotation of the drum 101 is suppressed by the strong braking force and the wire 103 cannot be released, the descent is stopped.

In the above, although the present invention has been described with reference to limited embodiments and drawings, the present invention is not limited thereto. Of course, various modifications and variations are possible.

100: casing 101: drum
102: motor 103: wire
104: seat belt 105: hook
106: resistance element 107: switch
108: speed control unit 109: reduction gear
110: guide member 111: bracket

Claims (14)

Portable emergency escape having a casing, a drum rotatably installed inside the casing and on which a wire is wound, a reduction gear connected to the drum, a DC motor connected to a rotating shaft to the reduction gear, and a seat belt worn by a user In the device,
At least one resistance element for determining a descending speed is connected between both ends of the power input terminal of the DC motor,
Shorting both ends of the power input terminal of the DC motor provides a brake function,
At least two or more drums are disposed in the casing in series or parallel form,
A portable emergency escape device, characterized in that when used, at least two or more wires are unwound to the outside of the casing and descending. According to claim 1,
A plurality of resistance elements having different resistance values are disposed between both ends of the power input terminal of the DC motor,
A portable emergency escape device, characterized in that a speed control unit is installed on one side of the casing to adjust the descending speed by selecting the resistance value of the resistance element. According to claim 1,
A portable emergency escape device, characterized in that a biner is connected to the end of the wire to be hung on the rod-shaped support fixed to the building or to be hung on the wire while the wire is wound around the building pillar. According to claim 1,
The safety belt is made of a ring shape into which a user's arm can be inserted, and two users are attached to the casing so that two users can use it together. According to claim 1,
The portable emergency escape device, characterized in that the casing is fixed to one side of the building and the safety belt is connected to the end of the wire unwound from the drum. According to claim 1,
The portable emergency escape device, characterized in that two seat belts are attached and can be worn in an X-shape or vertical form on both armpits of the user. According to claim 1,
The portable emergency escape device, characterized in that the two seat belts are attached and overlapped so that the two shapes and sizes match each other. According to claim 1,
A portable emergency escape device, characterized in that the user's arms are inserted into the seat belt, and both seat belts are connected or detached from each other at the front of the chest. According to claim 1,
The wire is a portable emergency escape device, characterized in that part of the length section or the entire length is coated with a non-combustible coating or a protective tube. According to claim 1,
A portable emergency escape device, characterized in that a ring-shaped safety handle is attached to one side of the safety belt. According to claim 1,
A portable emergency escape device, characterized in that both ends of the rotating shaft of the drum are supported in the casing so that the user's load is not shifted to one side of the reduction gear. According to claim 1,
The portable emergency escape device, characterized in that the wires unwound from the two or more drums are connected to a single biner. According to claim 1,
A portable emergency escape device, characterized in that a light emitting member is installed on at least a portion of the wire. According to claim 1,
The portable emergency escape device further comprising; a guide member in the form of a roller or a ring that is fixed around each drum and maintains a constant position at which the wire is released.

Images