KR102531922B1 - Split type door apparatus - Google Patents

Abstract

The present invention relates to a detachable door apparatus. The detachable door apparatus of the present invention comprises: a first door which opens and closes a lower side of an entrance; a second door which is installed to be rotatable relative to the first door and opens and closes an upper side of the entrance; and a locking unit which selectively restricts rotation of the second door relative to the first door. An objective of the present invention is to provide the detachable door apparatus which can be partially opened in an event of flooding.

Description

Separable door device {SPLIT TYPE DOOR APPARATUS}

The present invention relates to a detachable door device, and more particularly, to a detachable door device having a flood protection structure.

In general, a casement door that can be opened and closed by rotating to an indoor side or an outdoor side is installed in a building.

Such a casement door is generally composed of a door frame fixed to a wall partitioning an indoor space and an outdoor space, a hinge fixed to one side of the door frame, and a door fixed to the other side of the hinge.

However, when the conventional casement door is flooded due to heavy rain or the like, there is a problem in that it cannot be opened by human power due to water pressure applied to the door.

The background art of the present invention is disclosed in Korean Patent Publication No. 10-2017-0020264 (published on February 22, 2017, title of the invention: divided door structure).

An object of the present invention is to provide a detachable door device that can be partially opened when flooding occurs.

In order to solve the above problems, a detachable door device according to the present invention includes: a first door for opening and closing the lower side of the entrance; a second door rotatably installed relative to the first door and opening and closing an upper side of the entrance; and a locking unit selectively limiting relative rotation of the second door with respect to the first door.

In addition, the locking unit may include a locking groove provided in any one of the first door and the second door; and a locking member installed to be reciprocally movable on the other one of the first door and the second door, and inserted into or separated from the locking groove according to a moving direction.

In addition, the locking member is disposed inside the other one of the first door and the second door.

In addition, the locking member may include a locking body coupled to the other one of the first door and the second door; a locking rod disposed to face the locking groove and slidably supported by the locking body; and a lever portion extending from the locking rod.

In addition, the diameter of the locking rod gradually decreases toward the end facing the locking groove.

Also, the lever part extends in a radial direction of the locking rod.

In addition, the locking member further includes a guide rail formed to pass through the locking body and extending along a longitudinal direction of the locking body to guide the slide movement of the lever unit.

In addition, the locking rod is rotatably installed about a central axis, the locking member is connected to the guide rail, and a stopper rail extending along the circumferential direction of the locking body to limit the slide movement of the lever unit; include

The locking member may further include a pressing portion disposed between the locking body and the locking rod and applying a pressing force to the locking rod in a direction in which the locking rod is separated from the locking groove.

In addition, the pressing portion is provided to be elastically deformable in a direction parallel to the longitudinal direction of the locking body.

The device may further include a driving unit configured to operate the locking unit so that relative rotation of the second door with respect to the first door is permitted when the first door is submerged.

In addition, the drive unit may include a channel unit installed on the first door and through which water flows; a switch unit installed to be movable in the channel unit and having a variable height according to the water level flowing into the channel unit; and a driving member moving toward the lever unit as the switch unit rises above a set height and moving the lever unit from the stopper rail to the guide rail. and a driving pressure unit for pressing the driving member toward the lever unit.

In addition, the switch unit may include a switch rod installed inside the channel unit; A buoyancy body for lifting and moving the switch rod by buoyancy; a blocking plate that moves up and down together with the switch rod and restricts the movement of the driving member; and a through hole formed through the blocking plate and disposed to face the driving member as the blocking plate rises above a set height to allow movement of the driving member.

In addition, a sealing unit provided between the first door and the second door and sealing a gap between the first door and the second door; further includes.

In addition, a detection unit for detecting whether or not the first door is submerged; and an alarming unit generating an alarming signal based on the data sensed by the sensing unit.

According to the detachable door device according to the present invention, the upper and lower sides of the entrance can be independently opened or closed by the first and second doors rotatable relative to each other, even when the first door is not rotated due to flooding. It can allow the user to escape from the indoor space.

In addition, in the detachable door device according to the present invention, the first door and the second door are integrally rotated like a general door at normal times by the locking unit, and the upper and lower sides of the entrance can be opened and closed at the same time, and in flooded situations, the second door The door may rotate independently with respect to the first door and open the upper side of the entrance.

In addition, the separable door device according to the present invention may induce the first door and the second door to be automatically separated from each other without a user's manipulation when the first door is submerged by the driving unit.

1 is a view schematically showing the configuration of a detachable door device according to a first embodiment of the present invention.
2 is an enlarged view schematically illustrating the configuration of a locking unit according to a first embodiment of the present invention.
3 is an exploded perspective view schematically illustrating the configuration of a locking unit according to a first embodiment of the present invention.
4 is a view schematically showing a submerged state of the detachable door device according to the first embodiment of the present invention.
5 is a diagram schematically illustrating an operation process of a locking unit according to a first embodiment of the present invention.
6 is a view schematically showing the configuration of a detachable door device according to a second embodiment of the present invention.
7 is an enlarged view schematically showing the configuration of a drive unit according to a second embodiment of the present invention.
8 and 9 are diagrams schematically showing the operation process of the detachable door device according to the second embodiment of the present invention.

Hereinafter, an embodiment of a detachable door device according to the present invention will be described with reference to the accompanying drawings.

In this process, the thickness of lines or the size of components shown in the drawings may be exaggerated for clarity and convenience of description. In addition, terms to be described later are terms defined in consideration of functions in the present invention, which may vary according to the intention or custom of a user or operator. Therefore, definitions of these terms will have to be made based on the content throughout this specification.

In addition, in this specification, when a part is said to be “connected (or connected)” to another part, this is not only the case where it is “directly connected (or connected)”, but also “with another member in between” It also includes cases where it is indirectly connected (or connected). In this specification, when it is said that a certain part "includes (or includes)" a certain component, this does not exclude other components unless otherwise stated, but "includes (or includes)" other components. It means you can.

Also, like reference numerals may refer to like elements throughout this specification. Even if the same reference numerals or similar reference numerals are not mentioned or described in a particular drawing, the numerals may be described based on another drawing. In addition, even if there are parts not marked with reference numerals in specific drawings, the parts can be described based on other drawings. In addition, the number, shape, size, and relative difference of the detailed components included in the drawings of the present application are set for convenience of understanding, and may be implemented in various forms without limiting the embodiments.

1 is a view schematically showing the configuration of a detachable door device according to a first embodiment of the present invention.

Referring to FIG. 1 , the detachable door device 1 according to the present embodiment includes a first door 100, a second door 200, a locking unit 300, a sealing unit 400, a sensing unit 500, A warning unit 600 is included.

The first door 100 opens and closes a lower side of an entrance formed by penetrating a wall partitioning an indoor space and an outdoor space of a building. One side of the first door 100 according to this embodiment is rotatably connected to the wall surface via a hinge or the like. For example, the first door 100 rotates toward an outdoor space in a state in which the entrance is closed and may be rotatably connected to a wall surface to open the entrance. The cross-section of the first door 100 is formed to have a shape corresponding to the cross-sectional shape of the entrance.

The second door 200 is disposed facing the first door 100 and opens and closes the upper side of the entrance. The second door 200 is installed to be relatively rotatable with respect to the first door 100 . That is, the first door 100 and the second door 200 are installed to independently open or close the upper and lower sides of the entrance. Accordingly, when the first door 100 is not opened due to flooding, the user can escape from the indoor space by opening the upper side of the entrance through the second door 200 independently rotatable with respect to the first door 100. can The second door 200 according to this embodiment is disposed above the first door 100, and one side is rotatably connected to the wall surface via a hinge or the like. The lower surface of the second door 200 is separated from the upper surface of the first door 100 so that it can rotate relative to the first door 100 . The second door 200 may be rotatably connected to the wall surface in both directions. That is, the second door 200 rotates toward an indoor space as well as an outdoor space in a state in which the entrance is closed, and may be rotatably connected to a wall surface to open the entrance.

The locking part 300 selectively limits relative rotation of the second door 200 with respect to the first door 100 . More specifically, the locking part 300 allows the relative rotation of the second door 200 with respect to the first door 100 by interconnecting or separating the first door 100 and the second door 200, or It functions as a limiting construct. Accordingly, the locking unit 300 can rotate the first door 100 and the second door 200 integrally like a general door in normal times and open and close the upper and lower sides of the entrance at the same time. The door 200 can be rotated independently with respect to the first door 100 to open the upper side of the entrance. An operating state of the locking unit 300 may be adjusted by a user's manual manipulation.

Figure 2 is an enlarged view schematically showing the configuration of the locking unit according to the first embodiment of the present invention, Figure 3 is an exploded perspective view schematically showing the configuration of the locking unit according to the first embodiment of the present invention.

Referring to FIGS. 2 and 3 , the locking unit 300 according to the present embodiment includes a locking groove 310 and a locking member 320 .

The locking groove 310 is provided in any one of the first door 100 and the second door 200, and a locking member 320 to be described later is inserted into the inside. Hereinafter, although the locking groove 310 is provided in the second door 200 and the locking member 320 is provided in the first door 100, an example will be described, but the locking groove 310 and the locking member 320 is not limited thereto, and it is also possible that the locking groove 310 is provided on the first door 100 and the locking member 320 is provided on the second door 200 .

The locking groove 310 according to the present embodiment may be formed to have a shape of a groove concavely formed concave upward from the bottom surface of the second door 200 . The cross section of the lock groove 310 can be designed in various shapes such as a polygonal shape or an elliptical shape in addition to the circular shape shown in FIGS. 2 and 3 .

The locking member 320 is installed to be reciprocally movable to the other one of the first door 100 and the second door 200 . The locking member 320 limits or allows relative rotation of the second door 200 with respect to the first door 100 by being inserted into or separated from the locking groove 310 according to the direction of movement. .

The locking member 320 is disposed inside the other one of the first door 100 and the second door 200 . For example, the locking member 320 may be formed concavely recessed into the first door 100 and disposed inside the receiving part 101 having one side opened. The accommodating part 101 is disposed so that the opened side faces the indoor space, and the internal space can be opened and closed by a separate cover. Accordingly, the locking member 320 can be prevented from being unnecessarily manipulated due to unintentional contact with the user or collision with an external object.

The locking member 320 according to the present embodiment includes a locking body 321, a locking rod 322, a lever part 323, a guide rail 324, a stopper rail 325, and a pressing part 326.

The locking body 321 is coupled to the other one of the first door 100 and the second door 200 and movably supports a locking rod 322 to be described later. The locking body 321 according to this embodiment may be formed to have a hollow cylindrical shape with one side opened. The locking body 321 may be disposed inside the accommodating part 101 and fixed to the inner wall of the accommodating part 101 by bolting or the like. The locking body 321 is disposed so that the opened side faces the locking groove 310 . The locking body 321 is disposed coaxially with the locking groove 310 so that its central axis coincides with the central axis of the locking groove 310 .

The locking rod 322 is disposed to face the locking groove 310 and is slidably supported on the locking body 321 . The locking rod 322 according to this embodiment may be formed to have a cylindrical bar shape. The lower end of the locking rod 322 is inserted into the locking body 321 and the upper end is disposed facing the locking groove 310 . The outer circumferential surface of the locking rod 322 is spaced apart from the inner circumferential surface of the locking body 321 by a predetermined distance so as to be smoothly reciprocated in the vertical direction inside the locking body 321, or on the inner surface of the locking body 321. slide contact. The locking rod 322 is disposed coaxially with the locking groove 310 so that its central axis coincides with the central axis of the locking groove 310 . The lock rod 322 is rotatably installed on the lock body 321 about a central axis.

As the locking rod 322 moves upward, its upper end is inserted into the locking groove 310 to connect the first door 100 and the second door 200 to each other. As the locking rod 322 moves downward, the upper end is separated from the locking groove 310 to separate the first door 100 and the second door 200 from each other. The lock rod 322 is formed such that its diameter gradually decreases toward the end facing the lock groove 310, that is, toward the top end. Accordingly, the locking rod 322 can be more smoothly inserted into the locking groove 310 .

The lever part 323 extends from the locking rod 322 and is grippable by the user. That is, the lever part 323 functions as a structure that transmits the operating force applied by the user to the locking rod 322 . The lever unit 323 according to the present embodiment may be formed to have a rod shape extending in a radial direction of the locking rod 322 from an outer circumferential surface of the locking rod 322 . The lever unit 323 may be detachably coupled to the locking rod 322, and may be integrally formed with the locking rod 322. The lever unit 323 slides along with the locking rod 322 when the locking rod 322 slides.

The guide rail 324 guides the sliding movement of the lever unit 323 . That is, the guide rail 324 functions as a configuration for providing a slide movement path of the lever unit 323 in the lock body 321 . The guide rail 324 according to the present embodiment penetrates the lock body 321 in a radial direction and is formed to have a long hole shape extending along the length direction of the lock body 321 . The width of the guide rail 324 is wider than that of the lever part 323 . The lever part 323 penetrates the guide rail 324 and protrudes outward from the locking body 321 . The upper end of the guide rail 324 is disposed at a position where it can come into contact with the lever part 323 after the locking rod 322 is inserted into the locking groove 310 . The lower end of the guide rail 324 is disposed at a position where it can contact the lever unit 323 after the locking rod 322 is separated from the locking groove 310 .

The stopper rail 325 is connected to the guide rail 324 and interlocks with the rotational motion of the locking rod 322 to limit the sliding movement of the lever unit 323 . Accordingly, the stopper rail 325 keeps the locking rod 322 inserted into the locking groove 310 without being arbitrarily separated from the locking groove 310 by gravity or the pressing force of the pressing portion 326 to be described later. can The stopper rail 325 according to the present embodiment is formed to have a shape of a long hole that penetrates the locking body 321 in a radial direction and extends along the circumferential direction of the locking body 321 . The width of the stopper rail 325 is wider than that of the lever part 323 . One end of the stopper rail 325 is connected to the upper end of the guide rail 324 . The lever part 323 enters the stopper rail 325 as the locking rod 322 rotates to one side (counterclockwise direction in FIG. 2) in a state located at the upper end of the guide rail 324, and slides in the up and down direction Movement is restricted.

The pressing portion 326 is provided between the locking body 321 and the locking rod 322 and applies a pressing force to the locking rod 322 in a direction in which the locking rod 322 is separated from the locking groove 310 . Accordingly, the pressing part 326 moves the lever part 323 located on the stopper rail 325 into the guide rail 324 and at the same time separates the lock rod 322 from the lock groove 310 to shorten the user's escape time It is possible to prevent the locking of the locking rod 322 due to friction or the like. The pressing unit 326 according to the present embodiment may be exemplified as a coil spring elastically deformable in a direction parallel to the longitudinal direction of the locking body 321 . Both ends of the pressing part 326 are fixed to the ceiling surface of the locking body 321 and the outer surface of the locking rod 322, respectively. The pressing portion 326 is compressed in the longitudinal direction as the locking rod 322 moves upward and is inserted into the locking groove 310 and stores elastic restoring force. The pressing part 326 is extended in the longitudinal direction by the elastic restoring force accumulated as the lever part 323 enters the guide rail 324 from the stopper rail 325, and the locking rod 322 moves from the locking groove 310. Move the locking rod 322 downward so that it is released.

The sealing unit 400 is provided between the first door 100 and the second door 200 and seals a gap between the first door 100 and the second door 200 . Accordingly, the sealing unit 400 can block foreign substances, noise, etc. from being introduced into a gap between the first door 100 and the second door 200 separated from each other. The sealing unit 400 according to this embodiment may be formed to have the shape of a pad formed of an elastically deformable material such as rubber or silicon. The sealing unit 400 may be fixed to only one of the first door 100 and the second door 200 so as not to interfere with the relative rotation of the first door 100 and the second door 200 . For example, as shown in FIG. 2 , the lower side of the sealing unit 400 may be attached to the upper side of the first door 100 . When the first door 100 and the second door 200 are integrally connected, the upper surface of the sealing unit 400 is disposed to face the lower surface of the second door 200, and the upper surface of the second door 200 adhered to the bottom surface.

The detector 500 detects whether the first door 100 is submerged. The sensing unit 500 according to the present embodiment includes a water level sensor for measuring the water level around the first door 100, a water pressure sensor for measuring the amount of water pressure applied to the first door 100, and a water pressure sensor for measuring the water pressure applied to the first door 100. ) may be configured to include at least one or more of cameras that acquire surrounding image information. The sensing unit 500 may be installed on the first door 100 or the second door 200, and may be separately installed outside the first door 100 or the second door 200.

The alarm unit 600 determines whether the first door 100 is submerged based on the data sensed by the detector 500 . In this case, the alarm unit 600 detects the water level around the first door 100 detected by the sensor 500, the level of water pressure applied to the first door 100, etc. It may be determined that the door 100 is in a submerged state. When it is determined that the first door 100 is in a submerged state, an alarm signal is generated. Accordingly, the alarm unit 600 may allow the user to more quickly recognize a flooding situation. The alarm unit 600 according to the present embodiment may include a notification means for generating a warning sound or a light-emitting signal and a processor for controlling the operation of the notification means.

Hereinafter, the operation process of the detachable door device 1 according to the first embodiment of the present invention will be described in detail.

4 is a view schematically showing a submerged state of the detachable door device according to the first embodiment of the present invention.

Referring to FIG. 4, in normal times, the first door 100 and the second door 200 have a locking rod 322 inserted into the locking groove 310, and a lever part 323 attached to the stopper rail 325 As they are located in, they remain interconnected.

Thereafter, as a large amount of water flows into the outdoor space of the building due to heavy rain or the like while the entrances of the first door 100 and the second door 200 are closed, the water level around the first door 100 rises. do.

The alarm unit 600 controls the first door 100 as the water level around the first door 100 detected by the detector 500 and the level of water pressure applied to the first door 100 rise above a set level. ) determines that it is in a flooded state, and generates an alarm signal.

Thereafter, the user of the indoor space manipulates the locking part 300 to permit relative rotation of the second door 200 with respect to the first door 100 .

5 is a diagram schematically illustrating an operation process of a locking unit according to a first embodiment of the present invention.

More specifically, referring to FIG. 5 , the user applies rotational force to the lever unit 323 in a clockwise direction (based on FIG. 5 ) while holding the lever unit 323 .

By the rotational force applied to the lever unit 323, the locking rod 322 is rotated clockwise around the central axis, and the lever unit 323 enters the guide rail 324 from the stopper rail 325.

As the lever unit 323 enters the guide rail 324, the pressing unit 326 extends in the longitudinal direction and presses the locking rod 322 downward.

The locking rod 322 is moved downward by the pressing force applied from the pressing part 326 and is separated from the locking groove 310 .

As the locking rod 322 is separated from the locking groove 310, the first door 100 and the second door 200 are separated from each other.

Then, the user rotates the second door 200 to open the upper side of the entrance and escapes to the outdoor space.

Hereinafter, the configuration of the detachable door device 1' according to the second embodiment of the present invention will be described in detail.

6 is a view schematically showing the configuration of a detachable door device according to a second embodiment of the present invention.

Referring to FIG. 6, the detachable door device 1' according to the present embodiment includes a first door 100, a second door 200, a locking unit 300, a sealing unit 400, and a sensing unit 500. , an alarm unit 600, and a driving unit 700.

The first door 100, the second door 200, the locking unit 300, the sealing unit 400, the sensing unit 500, and the alarming unit of the detachable door device 1' according to the second embodiment of the present invention. Reference numeral 600 denotes the first door 100, the second door 200, the locking unit 300, the sealing unit 400, and the sensing unit of the detachable door device 1 according to the first embodiment of the present invention described above. 500 and the bar having the same configuration as the alarm unit 600, a description thereof will be omitted.

The driving unit 700 operates the locking unit 300 to allow relative rotation of the second door 200 with respect to the first door 100 when the first door 100 is submerged. That is, when the first door 100 is submerged, the driving unit 700 functions as a configuration that automatically separates the lock rod 322 from the lock groove 310 without a user's manipulation.

7 is an enlarged view schematically showing the configuration of a drive unit according to a second embodiment of the present invention.

Referring to FIG. 7 , the driving unit 700 according to the present embodiment includes a channel unit 710, a switch unit 720, a driving member 730, and a driving pressure unit 740.

The channel unit 710 is installed on the first door 100, and when the first door 100 is submerged, water flows into the inside. The channel unit 710 according to the present embodiment may be formed to have a tube shape in which the inside of the first door 100 is empty and both sides are open. The channel unit 710 is disposed inside the first door 100 . The channel unit 710 is disposed parallel to a direction perpendicular to the ground in a longitudinal direction. The lower end of the channel unit 710 passes through one surface of the first door 100 and communicates with the outdoor space. The upper end of the channel portion 710 passes through the bottom surface of the accommodating portion 101 and communicates with the inner space of the accommodating portion 101 .

The switch unit 720 is movably installed in the channel unit 710 and has a variable height according to the water level flowing into the channel unit 710 .

The switch unit 720 according to the present embodiment includes a switch rod 721, a buoyancy body 722, a blocking plate 723, and a through hole 724.

The switch rod 721 is installed inside the channel portion 710 and supports the buoyancy body 722 and the blocking plate 723 to be described later as a whole. The switch rod 721 according to this embodiment may be formed to have a substantially bar shape. The lower end of the switch rod 721 is disposed inside the channel part 710 and the upper end protrudes into the receiving part 101.

The buoyancy body 722 is coupled to the switch rod 721 and lifts and moves the switch rod 721 by buoyancy. The buoyancy body 722 according to this embodiment may be exemplified by various types of buoyancy bodies capable of floating on the surface of the water by its own buoyancy, such as Styrofoam or a container filled with air therein. The buoyancy body 722 is disposed inside the channel portion 710 and coupled to the lower end of the switch rod 721.

The blocking plate 723 moves up and down together with the switch rod 721 and limits the movement of the driving member 730 . The blocking plate 723 according to the present embodiment is formed to have a substantially flat plate shape and is coupled to the upper end of the switch rod 721 . The blocking plate 723 moves up and down together with the switch rod 721 when the switch rod 721 moves up and down, and its height is variable. When the lever unit 323 is located on the stopper rail 325, the blocking plate 723 is disposed between the lever unit 323 and a driving member 730 to be described later as the switch rod 721 moves downward. As the blocking plate 723 is disposed between the lever unit 323 and the driving member 730, the driving member 730 blocks a path moving toward the lever unit 323 to prevent the movement of the driving member 730. limit

The through hole 724 is provided in the blocking plate 723 and allows the movement of the driving member 730 as the switch rod 721 rises above a set height. The through hole 724 according to the present embodiment may be formed to have a shape of a hole formed through the blocking plate 723 . The blocking plate 723 is disposed to face the driving member 730 as the level of water introduced into the channel unit 710 increases and the switch rod 721 rises above a set height. As the through hole 724 faces the driving member 730, it opens a path through which the driving member 730 is moved toward the lever unit 323, thereby permitting the movement of the driving member 730.

The driving member 730 moves toward the lever part 323 as the switch part 720 rises above the set height and moves the lever part 323 located on the stopper rail 325 to the guide rail 324. The driving member 730 according to the present embodiment is formed to have a substantially bar shape and is disposed spaced apart from the locking body 321 by a predetermined distance inside the accommodating part 101 . are placed The driving member 730 is supported by a cylinder or the like so as to be slidably movable in a direction perpendicular to the lifting direction of the switch rod 721 (left-right direction in FIG. 7). The driving member 730 is disposed at the same height as the stopper rail 325 . When the lever part 323 is located on the stopper rail 325, the front end of the driving member 730 is disposed to face the outer surface of the lever part 323.

The drive pressing unit 740 presses the driving member 730 toward the lever unit 323 . The driving pressure unit 740 according to the present embodiment may be exemplified as a coil spring elastically deformable in the longitudinal direction. The driving pressure unit 740 is disposed parallel to the moving direction of the driving member 730 (left and right directions in FIG. 7) in a longitudinal direction. The driving pressure unit 740 may have one end fixed to the rear end of the driving member 730 and the other end fixed to the bottom surface of a cylinder movably supporting the driving member 730 .

Hereinafter, the operation process of the detachable door device 1' according to the second embodiment of the present invention will be described in detail.

8 and 9 are diagrams schematically showing the operation process of the detachable door device according to the second embodiment of the present invention.

Referring to FIGS. 8 and 9 , in normal times, as there is no water inside the channel part 710, the switch rod 721 is completely lowered, and the blocking plate 723 is connected to the lever part 323. It is disposed between the driving member 730.

The front end of the driving member 730 contacts the blocking plate 723 and is maintained in a rearward retracted state, and the driving pressing part 740 is compressed in the longitudinal direction to accumulate elastic restoring force.

Thereafter, when the first door 100 is flooded, water in the outdoor space flows into the channel unit 710 through the lower end of the channel unit 710 .

As the water level of the water introduced into the channel portion 710 rises, the buoyancy body 722 moves the switch rod 721 upward by buoyancy.

As the switch rod 721 rises above the set height, the through hole 724 is disposed to face the front end of the driving member 730 to open a movement path of the driving member 730 .

As the moving path of the driving member 730 is opened, the driving pressure unit 740 is extended in the longitudinal direction by the accumulated elastic restoring force, and presses the driving member 730 toward the lever unit 323 .

The driving member 730 passes through the through hole 724 and moves toward the lever unit 323 by the pressing force applied from the driving pressing unit 740 .

The driving member 730 comes into contact with the lever part 323 and applies rotational force to the lever part 323 in a clockwise direction (refer to FIG. 8 ).

By the rotational force applied to the lever unit 323, the locking rod 322 is rotated clockwise around the central axis, and the lever unit 323 enters the guide rail 324 from the stopper rail 325.

As the lever unit 323 enters the guide rail 324, the pressing unit 326 extends in the longitudinal direction and presses the locking rod 322 downward.

The locking rod 322 is moved downward by the pressing force applied from the pressing part 326 and is separated from the locking groove 310 .

As the locking rod 322 is separated from the locking groove 310, the first door 100 and the second door 200 are separated from each other.

Then, the user rotates the second door 200 to open the upper side of the entrance and escapes to the outdoor space.

The present invention has been described with reference to the embodiments shown in the drawings, but this is only exemplary, and those skilled in the art can make various modifications and equivalent other embodiments. will understand

Therefore, the technical protection scope of the present invention should be determined by the claims below.

1: detachable door device 100: first door
101: accommodation unit 200: second door
300: locking part 310: locking groove
320: locking member 321: locking body
322: lock rod 323: lever part
324: guide rail 325: stopper rail
326: pressing part 400: sealing part
500: detection unit 600: alarm unit
700: drive unit 710: channel unit
720: switch unit 721: switch rod
722: buoyancy body 723: blocking plate
724: through hole 730: driving member
740: drive pressing unit

Claims (15)

A first door that opens and closes the lower side of the entrance;
a second door rotatably installed relative to the first door and opening and closing an upper side of the entrance; and
A locking unit selectively limiting relative rotation of the second door with respect to the first door;
the locking part,
a lock groove provided in any one of the first door and the second door; and
A locking member installed in the other one of the first door and the second door to be reciprocally movable and inserted into or separated from the locking groove according to the direction of movement,
The locking member is
a locking body coupled to the other one of the first door and the second door;
a locking rod disposed to face the locking groove, slidably supported by the locking body, and rotatably installed around a central axis;
a lever part extending from the locking rod;
a guide rail passing through the locking body and extending along the longitudinal direction of the locking body to guide the slide movement of the lever unit;
a stopper rail connected to the guide rail and extending along the circumferential direction of the lock body to limit sliding movement of the lever unit; and
A pressing unit provided between the locking body and the locking rod and applying a pressing force to the locking rod in a direction in which the locking rod is separated from the locking groove;
and a driving unit configured to operate the locking unit to allow relative rotation of the second door with respect to the first door when the first door is submerged.
delete According to claim 1,
The locking member is a detachable door device, characterized in that disposed inside the other one of the first door and the second door.
delete According to claim 1,
The detachable door device, characterized in that the diameter of the lock rod gradually decreases toward the end facing the lock groove.
According to claim 1,
The detachable door device, characterized in that the lever portion extends in the radial direction of the lock rod.
delete delete delete According to claim 1,
The detachable door device, characterized in that the pressing portion is provided to be elastically deformable in a direction parallel to the longitudinal direction of the lock body.
delete According to claim 1,
the driving unit,
a channel unit installed in the first door and through which water flows;
a switch unit installed to be movable in the channel unit and having a variable height according to the water level flowing into the channel unit;
a driving member that moves toward the lever unit as the switch unit rises above a set height and moves the lever unit from the stopper rail to the guide rail; and
A detachable door device comprising a; driving pressurizing unit for pressing the driving member toward the lever unit.
According to claim 12,
The switch unit,
a switch rod installed inside the channel unit;
A buoyancy body for lifting and moving the switch rod by buoyancy;
a blocking plate that moves up and down together with the switch rod and restricts the movement of the driving member; and
and a through-hole formed through the blocking plate and disposed to face the driving member as the blocking plate rises above a set height to allow movement of the driving member.
The method of any one of claims 1, 3, 5, 6, 10, 12, and 13,
The separation type door device further comprising a sealing part provided between the first door and the second door and sealing a gap between the first door and the second door.
The method of any one of claims 1, 3, 5, 6, 10, 12, and 13,
a detector for detecting whether the first door is submerged; and
The detachable door device further comprising an alarm unit generating an alarm signal based on the data sensed by the sensor.

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