JP6114073B2 - Inundation prevention device - Google Patents

Description

  The present invention relates to an inundation prevention device that is provided at a door that opens and closes a doorway of a building and prevents the water from entering the building from the door and being submerged when the ground is flooded due to heavy rain or the like.

  At the entrances and exits of buildings such as office buildings and apartment buildings, sliding door type doors (automatic doors, etc.), rotary type doors that rotate around a vertical support shaft, and the like are provided. These doors are often not waterproofed when the ground is flooded due to heavy rain, etc., and water is removed from the gap between the door and the door frame and from the gap between the doors rotated by the water pressure associated with flooding. May enter the building and flood the building. In order to prevent this flooding, a flood prevention device may be provided at the entrance / exit.

  As this flood prevention device, there exists a thing of the structure shown in patent document 1, for example. This inundation prevention device includes a storage groove formed across the width direction of the floor of an entrance of a building or the like (for example, a ground entrance of a subway), a pair of support frames embedded in both side walls of the storage groove, A storage groove lid that moves up and down along the support frame while being fitted into the pair of support frames, and a sheet that prevents water from entering and exiting (see FIG. 1 of the same document). The sheet has an upper edge connected to the lid and a lower edge connected to the storage groove. When not in use, this sheet is stored in the storage groove so as not to obstruct traffic. Then, the sheet is pulled up during submergence and stretched between the pair of support frames to prevent water from entering from the entrance / exit.

Japanese Patent No. 3738435

  As shown in FIG. 1A for explaining the present invention, the door provided at the entrance of the building is generally provided in the same plane as the side wall of the building. In this case, as shown in Patent Document 1, the support frame of the inundation prevention device cannot be embedded in the side wall of the building, and the support frame must be provided on either the inside or outside of the building independently from the side wall. However, in that case, a gap is likely to be formed between the support frame provided independently and the door frame of the door, and water may enter through this gap, and there is a possibility that a sufficient flood prevention function cannot be exhibited during flooding.

  Then, this invention makes it a subject to prevent reliably that water permeates into the building from the entrance of a building at the time of flooding.

  In order to solve the above-described problems, the present invention is configured to open and close the entrance and exit from a storage groove provided on the floor surface of the entrance and exit of the building and extending from both ends of the storage groove. A pair of support frames provided integrally with the door frame of the door to be closed, and a waterproof sheet that is stored in the storage groove when not in use and pulled up and stretched between the pair of support frames when in use. The infiltration prevention apparatus which has is comprised.

  In this way, since no gap is generated between the door frame and the support frame, it is possible to reliably prevent water from entering the building from this gap. Here, the door frame includes door frames of sliding doors, rotary doors, and other various doors. In addition, “provided to be integrated with the door frame without a gap” means that the door frame and the support frame are composed of separate members, and the door frame and the support frame are composed of separate members. This includes a case in which a watertight treatment is applied between them, and there is no gap that causes flooding.

  In the above configuration, the frame includes a frame that presses the left and right ends of the waterproof sheet pulled up against the support frame, and a rotation shaft that extends from one support frame side to the other support frame side of the pair of support frames. It is preferable to include a cam member that urges the frame toward the waterproof sheet as the rotation shaft rotates.

  If it does in this way, the watertightness between a flame | frame and a waterproof sheet can be ensured, and the reliability as an inundation prevention apparatus further improves. Moreover, in this cam member, the working surface where the urging action is generated and the rotating shaft of the cam member are not perpendicular to each other, and the rotating shaft may be erected on the operator side as in this configuration. Is possible. For this reason, the operation of the cam member can be easily performed, and when the heavy rain or the like occurs, it is possible to quickly and surely make the infiltration prevention device function.

  In the configuration employing the frame, it is preferable that a undulation mechanism is provided at the lower end of the frame, and the frame is configured to be housed in the storage groove by the undulation mechanism.

  In this way, when the danger of flooding is imminent, it is not necessary to carry the frame from another location, and the frame stored in the storage groove can be raised to quickly function as a flood prevention device. It can be in a ready state. Moreover, since this device is stored in the storage groove when not in use, this frame does not hinder pedestrian traffic.

  In the configuration in which the hoisting mechanism is provided, the hoisting mechanism is a hinge, and the hinge is provided with a play that allows relative movement in the axial direction of the hinge between the storage groove side and the frame. It is preferable that the frame can move relative to the housing groove so as to approach the waterproof sheet when the force is applied.

  A general hinge is for rotating the members connected via the hinge relative to each other around the axis, and the two members cannot be moved relative to each other in the axial direction of the hinge. In this case, when the frame is urged by the cam member, the movement of the frame in the axial direction is limited by the hinge, and the pressing of the waterproof sheet by the frame may be insufficient. Thus, by providing the hinge with an axial play in this way, the axial movement of the frame is allowed by the width of the play, and the waterproof sheet can be pressed smoothly. For this reason, the water leak from the both ends edge of a waterproof sheet is prevented reliably.

  In this invention, the inundation preventing apparatus having a pair of support frames that stand up from both ends in the width direction of the entrance / exit of the building and are provided integrally with the door frame of the door provided at the entrance / exit is configured. According to this inundation prevention device, it is possible to prevent water from entering the building through the gap between the door frame and the support frame, and to ensure the safety of residents and the like during flooding due to heavy rain. Can do.

1 shows a first embodiment (accommodated state) of an inundation preventing device according to the present invention, wherein (a) is an overall cross-sectional view, and (b) is a cross-sectional view of the main part. The longitudinal cross-sectional view which looked at the infiltration prevention device (storage state) concerning a first embodiment from the side The state which installed the inundation prevention apparatus (storage state) which concerns on 1st embodiment in the entrance / exit of a building is shown, (a) is a front view, (b) is a cross-sectional view. 1 shows a water intrusion prevention device (stored state) according to a first embodiment, (a) is a partial cross-sectional view seen from the side, and (b) is a longitudinal cross-sectional view seen from the front. The principal part enlarged view of the inundation prevention apparatus (storage state) which concerns on 1st embodiment is shown, (a) is the longitudinal cross-sectional view seen from the side surface, (b) is the longitudinal cross-sectional view seen from the front 1 shows an inundation prevention device (accommodated state) according to a first embodiment, (a) is a perspective view of the whole, and (b) is a perspective view of an essential part. In the inundation prevention apparatus which concerns on 1st embodiment, the state which stood the frame is shown, (a) is the longitudinal cross-sectional view seen from the side surface, (b) is the longitudinal cross-sectional view seen from the front The state where the urging | biasing force to the flame | frame by the cam member is not produced is shown, (a) is a cross-sectional view, (b) is a side view of the cam member. The state which produced the urging | biasing force to the flame | frame by a cam member is shown, (a) is a cross-sectional view, (b) is a side view of a cam member. Perspective view of main part showing operation of hinge at lower end of frame 1 shows an inundation preventing device (use state) according to a first embodiment, wherein (a) is a longitudinal sectional view seen from a side surface, and (b) is a longitudinal sectional view seen from the front. 2 shows a second embodiment (stored state) of the inundation preventing device according to the present invention, wherein (a) is a cross-sectional view of the whole, and (b) is a cross-sectional view of the main part. The longitudinal cross-sectional view which looked at the infiltration prevention device (storage state) concerning a second embodiment from the side The state which installed the inundation prevention device (storage state) concerning a second embodiment in the entrance and exit of a building is shown, (a) is a front view, and (b) is a cross section. Partial sectional view of another example of waterproof sheet tensioning mechanism viewed from the front Longitudinal cross-sectional view of the main part of another example of a waterproof sheet tensioning mechanism viewed from the side

  A first embodiment of the inundation preventing device according to the present invention is shown in FIGS. This inundation prevention device stands on the floor F of the entrance / exit of a building such as an office building over the entire width of the opening, and stands up from both ends of the storage groove 1 to open / close the entrance / exit. A pair of support frames 3, 3 formed integrally with the left and right door frames 2 of the rotary door D, and stored in the storage groove 1 when not in use, and lifted up when in use to form a pair of support frames 3, 3. And a waterproof sheet 4 stretched between them. By integrally forming the door frame 2 and the support frame 3, it is possible to reliably prevent the problem of flooding into the building from between the frames 2 and 3.

  The storage groove 1 has a bowl shape with an upper portion opened, and a detachable tread 5 is provided in the opening. When the storage groove 1 is installed, a hole having a depth corresponding to the depth of the storage groove 1 is excavated in advance on the floor surface F, and the storage groove 1 is provided in the hole. By doing so, there is almost no step between the floor surface F and the upper portion of the storage groove 1, and there is no fear that the pedestrian will trip. If it is allowed to generate a step in the floor surface F, a construction method in which the storage groove 1 is directly provided on the floor surface F without digging a hole in the floor surface F can be adopted.

  As shown in FIG. 4, an enlarged view of the essential part thereof, and a perspective view of FIG. 6, the waterproof sheet 4 is pulled up into the storage groove 1 in a bellows shape. The waterproof sheet 4 is housed in a state where the frames 6 that press the left and right ends of the waterproof sheet 4 against the support frame 3 are tilted. The lower end of the waterproof sheet 4 is sandwiched under the base portion 7 fixed to the bottom surface of the storage groove 1 and is in close contact with the inner lower surface of the storage groove 1 so as to maintain a watertight state. Thereby, the water leak from the lower end of this waterproof sheet 4 is prevented. An upper frame 8 is provided at the upper end of the waterproof sheet 4. The upper frame 8 is configured by fitting the inner frame 10 into the outer frame 9, and the waterproof sheet 4 is sandwiched between the outer frame 9 and the inner frame 10. By pulling up the upper frame 8 and inserting locking projections 12 (described later) provided in the support frame 3 into locking holes 11 formed at both left and right ends of the upper frame 8, the upper frame 8 It is designed to be locked at the height.

  The support frame 3 is formed integrally with the door frame 2 as described above, and has an opening recess 13 having a U-shaped cross section that opens to the opposite support frame 3 side. The frame 6 is provided upright in the opening recess 13. In FIG. 1, the frame 6 in an upright state is indicated by a virtual line.

  The frame 6 is a square member having a square cross section. As shown in FIG. 7, the frame 6 includes a rotating shaft 14 that extends from one support frame 3 side of the pair of support frames 3 and 3 to the other support frame 3 side in the upright state. A cam member 15 that biases the frame 6 toward the waterproof sheet 4 as the moving shaft 14 rotates is provided. Further, the lower end of the frame 6 and the base portion 7 are connected by a hinge 16 so that the frame 6 can be tilted and stored in the storage groove 1 when the flood prevention device is not used as described above. ing. Since the frame 6 is integrally formed without being separated from the base portion 7 in this way, it is not necessary to carry the frame 6 from a storage place away from the device in case of an emergency such as a flood, and to connect it. The prevention device can function quickly.

  The frame 6 has a leg 17 on the lower surface when stowed, a fixing member 18 at the upper end when the frame 6 is erected, and a fitting member 19 having a mountain shape in cross section on the surface facing the waterproof sheet 4. The cam members 15 are respectively provided at two places in the height direction.

  The leg portion 17 keeps the frame 6 slightly lifted from the base portion 7 when the frame 6 is tilted and stored, and the base portion 7 and the fixing member 18 are in direct contact with each other and cause troubles such as damage. It has a role to prevent. The material is not particularly limited, but it is preferable to use a rubber material.

  The fixing member 18 includes a protruding portion 20 and a biasing member 21 that biases the protruding portion 20 in the protruding direction. The waterproof sheet 4 is pulled up, and the frame 6 is erected while the upper frame 8 is locked to the support frame 3. Then, the protruding portion 20 of the fixing member 18 is once pushed against the urging force of the urging member 21, and is protruded again in the concave receiving portions 22 formed at the left and right end portions of the upper frame. Thereby, the frame 6 can be held in an upright state (see FIG. 7).

  As shown in FIG. 8, elastic members 23 are respectively provided in two parallel groove portions of the fitting member 19. The central pressing portion 24 of the mountain shape protrudes slightly from the elastic member 23.

  The support frame 3 is provided with an elastic member 25 on one side of the pair of U-shaped inner surfaces of the opening recess 13 and a hard contact member 26 on the other side. ing. As this elastic member 25, as shown in the figure, elastic members 25a and 25b having different elastic moduli may be provided side by side. An openable / closable door 27 is provided at the opening of the support frame 3, and the door 27 is closed when the inundation prevention device is not used.

  The cam member 15 includes a rotation shaft 14, a cam body 28, a fixing screw 29 that fixes the rotation shaft 14 to the cam body 28, and a holding frame 30 that holds the cam body 28. The amount of protrusion of the cam body 28 from the holding frame 30 can be adjusted by the rotation of the rotating shaft 14. When the rotating shaft 14 is turned from the state of FIG. 8 to the state of FIG. 9, the cam body 28 protrudes from the front end side of the holding frame 30. Then, the protruding cam body 28 comes into contact with the contact member 26, and the holding frame 30 is displaced in the direction opposite to the contact member 26, and the frame 6 is urged toward the waterproof sheet 4 along with this displacement. . By this urging, the pressing portion 24 of the fitting member 19 is pressed against the elastic member 25 side while the waterproof sheet 4 is wound, and watertightness of the edge portion of the waterproof sheet 4 is ensured.

  The rotating shaft 14 stands upright with respect to the cam body 28, that is, on the operator side. For this reason, while being able to perform the rotation operation easily, sufficient clamping force with a tool can be obtained, and this flood prevention device can be functioned promptly and reliably in an emergency such as a flood.

  As shown in FIG. 10, the hinge 16 is provided with a play f on its rotating shaft. With this play f, the frame 6 can move relative to the base portion 7 in the direction of the rotation axis. The receiving portion 22 that holds the frame 6 in an upright state prevents the frame 6 from being inadvertently rotated (falls) in the direction in which the frame 6 is stored in the storage groove 1, while the frame 6 by the cam member 15. With this urging, the frame 6 is formed with a clearance that allows the frame 6 to be pushed into the waterproof sheet 4 side. In this way, the hinge 16 is provided with play f, and the receiving portion 22 is provided with a space, so that the rotating shaft 14 of the cam member 15 is rotated to smoothly displace the entire frame 6 toward the waterproof sheet 4 side. The waterproof sheet 4 can be pressed against the support frame 3. For this reason, the watertightness of the right and left end edges of the waterproof sheet 4 is further ensured.

  In the case where the entrance is wide, it is preferable to provide one or two or more struts (mullions) between the support frames 3 and to disperse a part of the water pressure applied to the waterproof sheet 4 to the struts. In this way, it is possible to prevent an excessive load from being applied to the waterproof sheet 4 sandwiched between the support frames 3 and 3 by this water pressure, and it is possible to prevent the watertightness from being impaired due to this load. Because.

  By forming the door frame 2 and the support frame 3 of the door D integrally as in the inundation preventing apparatus according to the first embodiment, and by stretching the waterproof sheet 4 between the support frames 3 and 3. Water can be prevented from entering the building. In this embodiment, the right and left end portions of the waterproof sheet 4 are pressed against the support frame by the frame 6, and this pressing prevents water from entering from both ends of the waterproof sheet 4. As long as it can be prevented, the installation of the frame 6 can be omitted. In addition, the door frame 2 and the support frame 3 may be configured as separate members, and may be configured to ensure water tightness so that a gap for water to enter does not occur between them.

  The installation procedure of the inundation preventing apparatus according to the first embodiment will be described.

  First, the tread plate 5 covering the opening of the storage groove 1 is removed, and the waterproof sheet 4 stored in the storage groove 1 is pulled up by holding the upper frame 8 fixed to the top of the waterproof sheet 4 by hand. Then, the locking projections 12 formed on the support frame 3 are inserted into the locking holes 11 formed on the upper frame 8. Thereby, the waterproof sheet 4 and the upper frame 8 are locked at a predetermined height.

  Next, the frame 6 stored in the storage groove 1 is erected, and the protruding portion 20 of the fixing member 18 provided at the upper end of the frame 6 is locked by the receiving portion 22 of the upper frame 8. Further, the rotating shaft 14 of the cam member 15 is rotated using a tool attached to the apparatus, the cam main body 28 is protruded from the holding frame 30 and brought into contact with the contact member 26, and the frame 6 (insertion member 19 is inserted). ) To the waterproof sheet 4 side. As a result, the left and right edges of the waterproof sheet 4 are in intimate contact with the support frame 3 to ensure watertightness between the support frames 3 at both ends of the doorway and the waterproof sheet 4 (see FIG. 11).

  A second embodiment of the inundation preventing device according to the present invention is shown in FIGS. In the first embodiment, the door frame 2 and the support frame 3 of the rotary door D are integrally formed, whereas in the second embodiment, the sliding door type door D (in this embodiment) The door frame 2 of the automatic door) and the support frame 3 are integrally formed. In this embodiment, a pile member 31 is provided in the storage groove 1, and the storage groove 1 is firmly fixed by inserting the pile member 31 into the soil below the floor surface. Further, a through hole 32 is formed at the bottom of the storage groove 1 so as to penetrate the inside and outside of the storage groove 1. When rainwater or the like flows into the storage groove 1, the water is quickly drained. It has become. Of course, the pile member 31 and the through hole 32 may be omitted.

  In each of the above-described embodiments, a lifting method in which the waterproof sheet 4 is lifted by hand is adopted, but a winding method using a worm gear 33 and a pulley 34 can also be adopted as shown in FIG. As with the lifting method, the waterproof sheet 4 is folded in a bellows shape, and an upper frame 8 is provided at the upper end thereof. Hooks 36 for connecting the wires 35 are provided at both left and right edges of the upper frame 8. In addition, a winding device 37 that winds the wire 35 is provided on one side of the support frame 3. The winding device 37 includes a worm gear 33 composed of a worm 38 and a worm wheel 39. By rotating the handle 40 to rotate the worm 38, the first wire 35a connected to one hook 36 and the other The second wire 35b connected to the hook 36 via three pulleys 34, 34, 34 is wound around the drum 41 coaxially and so as not to cross each other (see FIG. 16). By comprising in this way, the waterproof sheet 4 can be stretched | maintained, keeping the upper frame 8 horizontal.

  The infiltration prevention device shown in the first and second embodiments is merely an example, as long as it can solve the problem of the present invention of preventing infiltration from the gap between the door frame 2 and the support frame 3, Other door types can also be applied.

DESCRIPTION OF SYMBOLS 1 Storage groove 2 Door frame 3 Support frame 4 Waterproof sheet 5 Footplate 6 Frame 7 Base part 8 Upper frame 9 Outer frame 10 Inner frame 11 Locking hole 12 Locking protrusion 13 Opening recessed part 14 Rotating shaft 15 Cam member 16 Hinge (undulation) mechanism)
17 Leg part 18 Fixing member 19 Insertion member 20 Protrusion part 21 Energizing member 22 Receiving part 23 Elastic member 24 (provided on the insertion member) Press part 25 (25a, 25b) Elastic member 26 (provided on the support frame) Contact member 27 Door 28 Cam body 29 Fixing screw 30 Holding frame 31 Pile member 32 Through hole 33 Worm gear 34 Pulley 35 (35a, 35b) Wire 36 Hook 37 Winding device 38 Warm 39 Warm wheel 40 Handle 41 Drum D Door F Floor surface

Claims (2)

A storage groove (1) provided on the floor surface (F) of the entrance / exit of the building over the entire opening width direction of the entrance / exit, and a door standing from both ends of the storage groove (1) to open / close the entrance / exit A pair of support frames (3, 3) provided integrally with the door frame (2) of (D), and the pair of support frames stored in the storage groove (1) when not in use and pulled up during use. A waterproof sheet (4) stretched between (3, 3),
A frame (6) for pressing the left and right ends of the waterproof sheet (4) pulled up against the support frame (3), and the other support frame (3) side of the pair of support frames (3, 3) from the other A cam member (15) provided with a rotating shaft (14) directed toward the support frame (3) and urging the frame (6) toward the waterproof sheet (4) as the rotating shaft (14) rotates. ) And
The frame undulating mechanism at the lower end (6) (16) is provided, said frame (6), said receiving groove (1) immersion that is configured to be capable of accommodating the water prevented by the relief mechanism (16) apparatus. The hoisting mechanism (16) is a hinge (16), and the hinge (16) is relatively moved in the axial direction of the hinge (16) between the storage groove (1) side and the frame (6). Play (f) is allowed, and the frame (6) can move relative to the housing groove (1) so as to approach the waterproof sheet (4) during the urging. The infiltration prevention device according to claim 1 .

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