JP2017145136A - Flood prevention device and elevator device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent water immersion into an elevator tower with a simple structure at low cost.SOLUTION: A flood prevention device for preventing water immersion into a tower 10 by a waterproof panel 2 when probability of water immersion occurs on a landing 1 of an elevator comprises: a waterproof panel 2 for preventing water immersion into an elevator tower 10; and a second hydraulic jack 8 for gradually raising the waterproof panel 2 from a floor face 1a of a landing 1. The second hydraulic jack 8 is driven with a first hydraulic jack 7 for lifting a car installed in the elevator tower 10 by hydraulic pressure, by switching control of a direction switching valve 6 by a hydraulic unit 5, and performs both of lifting drive of a car 3 and raising of the waterproof panel 2.SELECTED DRAWING: Figure 2

Description

  The present invention relates to an inundation preventing device for preventing inundation into a tower and an elevator apparatus equipped with the inundation preventing device.

  Some areas where flooding does not normally occur may be flooded due to disasters such as earthquakes and typhoons. On the other hand, there are elevators and escalators facing outdoors, and they are installed from the first floor of the building or from the basement to the upper floor. For example, in a hydraulic elevator, the machine room is installed in another place that is not in the tower. Tower equipment is installed on the floor, and wiring from the tower equipment is routed inside the tower or on the floor and wired to the machine room. When the hydraulic elevator having such a structure is submerged by the disaster or the like, the equipment and wiring may be wet or submerged by the submergence. In such a case, the wiring may be short-circuited, and the elevator may stop or the elevator may break down.

  Therefore, for example, Japanese Patent Application Laid-Open No. 7267556 (Patent Document 1) aims to automatically prevent rainwater and the like from entering the elevator hoistway even in the case of wind and rain, and a floor surface of the elevator hall by a water sensor. When the inundation is detected, the control panel drives the motor, and this power automatically lowers the waterproof panel stored above the ceiling of the elevator hall to the floor surface with the chain, and lifts the elevator from the floor surface of the elevator hall. A technique for preventing water from entering the road is disclosed.

JP-A-7-267556

  The elevator described in Patent Document 1 prevents the flooding by lowering the waterproof panel housed above the ceiling to the floor of the elevator hall after the water sensor detects the flooding of the floor of the elevator extension field. It is like that. For this reason, it takes time until the waterproof panel is completely lowered, and the flooding continues during that time. Moreover, since it is stored above the ceiling, there is a limit to the dimension in the height direction of the waterproof panel, and it is not always possible to cope with a case where the flooding height is high such as flood damage.

  Also, in order to lower the waterproof panel from the top to the floor, a separate power motor, a transmission mechanism that transmits the drive of the motor, and a mechanism for winding and rewinding the chain are required. These mechanisms can be installed. If there is no space, it is impossible to install and there are restrictions on the installation location, so that the cost for installing the mechanism is also large.

  Therefore, the problem to be solved by the present invention is to prevent water from entering the elevator tower easily and at low cost.

  In order to solve the above problems, according to one aspect of the present invention, there is provided a waterproof panel that prevents inundation into an elevator tower, and when there is a risk of inundation in the elevator platform, the waterproof panel causes the elevator tower to enter the elevator tower. In the inundation preventing apparatus for preventing inundation, the inundation preventing means for preventing the inundation by causing the waterproof panel to compete from the floor of the landing is provided.

According to one embodiment of the present invention, water can be prevented from entering the elevator tower easily and at low cost. Note that problems, configurations, and effects other than those described above will be clarified in the following description of embodiments.

It is operation | movement explanatory drawing which shows the state before operation | movement of the inundation prevention apparatus which concerns on embodiment of this invention. It is operation | movement explanatory drawing which shows the state after the operation | movement of the inundation prevention apparatus which concerns on the example of embodiment of this invention. It is the top view which looked at the water immersion prevention apparatus of FIG. 2 from upper direction.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is an operation explanatory view showing a state before the operation of the inundation preventing apparatus according to the present embodiment, and FIG. 2 is an operation explanatory view showing a state after the operation.

  1 and 2, an elevator apparatus 100 according to the present embodiment is a so-called hydraulic elevator of a hydraulic drive type, and a car 3 moves up and down in a tower 10 formed in a building. The figure shows the relationship between the car 3, the landing 1, and the waterproof panel 2 in a state of being stopped on the first floor. The elevator car 3 is lifted and lowered by the hydraulic unit 5. In addition, at a preset height position below the wall surface 12 following the three-way frame 11 of the landing 1, a flood detection sensor 4 for detecting flood is provided. When the inundation detection sensor 4 detects water, it indicates that the landing 1 has reached a predetermined water level.

  The hydraulic unit 5 includes a hydraulic pump 51, an elevator control unit 52, and a hydraulic tank 53. The hydraulic pump 51 receives supply of oil from the hydraulic tank 53, pressurizes it, and can supply pressure oil from the first and second hydraulic pipes 9a, 9b to the first and second hydraulic jacks 7, 8 side. It is like that.

  The first hydraulic jack 7 is an elevator drive jack for raising and lowering the car 3, and the second hydraulic jack 8 is a panel lifting jack for moving the waterproof panel 2 up and down. In the present embodiment, the first hydraulic jack 7 is provided in a basement dug downward from the floor surface 1a on the first floor. Similarly, the second hydraulic jack 8 is provided underground. For this reason, the first hydraulic jack 7 is shown in the drawing so as to raise and lower the car 3 directly, but an elevating mechanism using a rope and a pulley is also known.

  In the case of the structure shown in FIGS. 1 and 2, the maximum extension amount of the waterproof panel 2 is such that the sum of the length in the longitudinal direction when the second hydraulic jack 8 is contracted and the height of the waterproof panel 2 is underground. The condition is that it is smaller than the installed height. In a normal hydraulic elevator, the amount of protrusion of the waterproof panel 2 from the floor 1a of the landing 1 can be sufficiently secured at least 1 m.

  A direction switching valve 6 is installed at a branch portion between the first hydraulic pipe 9a and the second hydraulic pipe 9b. When the car 3 is raised or lowered, the direction switching valve 6 closes the second hydraulic pipe 9b and opens the first hydraulic pipe 9a as shown in FIG. When the waterproof panel 2 is moved up and down, the first hydraulic pipe 9a is closed and the second hydraulic pipe 9b is opened as shown in FIG.

  The elevator control unit 52 controls the raising / lowering control of the car 3 and the drive control of the vertical movement of the waterproof panel 2. Therefore, an instruction signal for raising / lowering the car 3, a signal indicating the raising / lowering position of the car 3, or a door opening / closing state, etc. are input to the elevator control unit 52 from an operation panel (not shown) of the car 3. The elevator control unit 52 drives and controls the hydraulic pump 51 in accordance with these input signals.

  In addition, when the elevator control unit 52 receives a water level signal indicating that water has reached the height position from the inundation detection sensor 4, that is, the inundation has occurred through the first signal line 52 a, the elevator control unit 52 receives the second signal line. An instruction signal for switching the direction switching valve 6 to a position for closing the first hydraulic pipe 9a and opening the second hydraulic pipe 9b via 52b is output. Thereby, the direction switching valve 6 is switched, and the pressure oil supply direction is switched. This switching operation is performed not only based on the detection output of the inundation detection sensor 4, but also, for example, a receiver 54 for receiving weather information and disaster information is installed in the hydraulic unit 5 and information that may be inundated. When the signal is received, a signal to that effect may be transmitted from the receiver 54 to the elevator controller 52.

  The lower part of the passenger car 3 is firmly fixed to the upper part of the first hydraulic jack 7. Pressure oil is supplied from the hydraulic pump 51 to the first hydraulic jack 7 through the first hydraulic pipe 9 a, and the elevator control unit 52. By adjusting the amount of pressure oil, the first hydraulic jack 7 expands and contracts to raise and lower the car 3 in the tower 10.

  The state shown in FIG. 1 is a normal state in which no flooding occurs, the direction switching valve 6 is switched in a direction for raising and lowering the car 3, and the pressure oil supplied from the hydraulic pump 51 is the first hydraulic jack. 7 is driven. In this response, no pressure oil is supplied to the second hydraulic jack 8, so that the waterproof panel 2 is lowered, and the upper end of the waterproof panel 2 is slightly lowered from the elevator 1 b on the floor surface 1 a of the landing 1. In the position. In FIG. 1, the car 3 is in a state of being stopped at the landing 1 on the first floor.

  When the inundation detection sensor 4 detects inundation from this state, the inundation information is transmitted to the elevator control unit 52. The elevator control unit 52 that has received the inundation information first raises the car 3 to a height at which there is no possibility of getting wet with water due to the inundation. After the car 3 rises, it stops on the spot.

  The elevator control unit 52 subsequently operates the direction switching valve 6 to close the first hydraulic pipe 9a and open the second hydraulic pipe 9b. Thereby, the pressure oil is supplied to the second hydraulic jack 8 side. The base end side of the second hydraulic jack 8 is housed in a bellows-like housing body 8a, and the second jack 8 is extended when pressure oil is sent to the second hydraulic jack 8, and is waterproofed accordingly. The upper end of the panel 2 protrudes from the elevator port 1b. Further, the bellows also extends and the waterproof panel 2 stops when reaching the maximum height defined by the amount of expansion / contraction of the second jack 8.

  Since the car 3 is maintained in a state in which the pressure oil is supplied to the first hydraulic jack 7 by closing the direction switching valve 6, the car 3 maintains the raised height.

  That is, according to the present embodiment, when the car 3 is raised, if the position of the direction switching valve 6 is switched at the stop position, the waterproof panel 2 can be lifted up as it is, so that it can be waterproofed with simple control. The function of the panel 2 can be exhibited.

  As shown in FIG. 2, the waterproof panel 2 protrudes from the floor surface 1a inside the three-sided frame 11 from the upper end side, but the side surface is provided with guide grooves provided inside the frames 11a on both sides of the three-sided frame 11 as shown in FIG. It moves up and down along 11b. Therefore, if the sealing material 1c is provided on both sides of the elevator port 1b and the sealing material is also provided on the inner surface of the guide groove 11b, the three surfaces of the waterproof panel 2 can be made watertight. As a result, it is possible to exhibit a good flood prevention function.

  In the present embodiment, the base end portion of the second hydraulic jack 8 has a bellows structure, but it goes without saying that it may have a cylindrical structure.

  Moreover, in this embodiment, since it demonstrated from the state which the car 3 has stopped on the 1st floor, the car 3 was raised first, but the car 3 has moved the height position of the 2nd floor or more. In that case, the direction switching valve 6 may be switched after stopping at the nearest floor. Alternatively, when the vehicle stops at the landing 1 on the second floor or higher, the direction switching valve 6 can be switched immediately in that state.

  Furthermore, since the car 3 can be driven up and down while the waterproof panel 2 is raised to prevent water intrusion, the car 3 can be moved up and down at a position higher than a preset height, which is considered not to be affected by water. When the vehicle is in the position, the car 3 is immediately stopped and the waterproof panel 2 is raised, and then the direction switching valve 6 is switched to stop the car 3 at the nearest floor.

  In addition, the attachment position of the inundation detection sensor 4 is appropriately set according to the regionality where the elevator is installed, and does not limit the attachment position or the attachment height. Moreover, it can also set so that the waterproof panel 2 may act | operate according to the rainfall of the location set beforehand, or the amount of accumulated water.

  Further, in the present embodiment, the hydraulic elevator is taken as an example, and the raising and lowering driving of the car 3 and the vertical driving of the waterproof panel 2 are driven by the same drive source. However, the waterproof panel 2 may be configured as a separate drive. it can.

  As described above, according to the present embodiment, the following effects can be obtained. In the following description, each component in the claims corresponds to each part of the present embodiment, and when the terms are different, the latter is shown in parentheses to clarify the correspondence between the two.

  (1) According to the present embodiment, the waterproof panel 2 that prevents water from entering the tower 10 is provided, and the waterproof panel 2 prevents water from entering the tower 10 when there is a risk of flooding at the landing 1. In the inundation prevention device, since the infiltration prevention means (second hydraulic jack 8) for preventing the inundation by advancing the waterproof panel 2 from the floor surface 1a of the landing 1 is provided, the waterproof panel 2 is competed from the floor surface 1a side. It is possible to prevent water intrusion into the tower 10 with a simple and low-cost configuration that can be increased. Moreover, since it competes from the lower side, the amount of inundation at the initial stage of the inundation can be made extremely small as compared with the infiltration prevention device of the type that descends from the upper side.

  (2) According to the embodiment in which the waterproof panel 2 is embedded in the floor surface 1a of the landing 1 in the inundation preventing device of (1), the waterproof panel 2 can be installed without disturbing passengers. .

  (3) According to the embodiment in which the waterproof panel 2 is installed between the floor surface 1a of the landing 1 and the frames 11a on both sides of the three-way frame 11 of the landing 1 in the flood prevention device of (1) or (2). When the door side of the elevator is viewed from the front, the three locations of the lower surface and the surfaces on both sides have a watertight structure, so that water can be reliably prevented.

  (4) Hydraulic drive means (first hydraulic jack 7, hydraulic unit 5) for raising and lowering the car 3 installed in the tower 10 by hydraulic pressure in the inundation preventing apparatus according to any one of (1) to (3). The hydraulic drive means (first hydraulic jack 7, hydraulic unit 5) supplies pressure oil to the first hydraulic pipe 9a to raise and lower the car 3, and is submerged via the second hydraulic pipe 9b. According to the embodiment in which pressure oil is supplied to the prevention means (second hydraulic jack 8) and the waterproof panel 2 is auctioned, the elevator 3 is driven up and down and waterproofed by one hydraulic drive means (hydraulic unit 5). Both operations of auctioning the panel 2 can be performed.

  (5) According to the embodiment in which the first hydraulic pipe 9a and the second hydraulic pipe 9b are connected via the direction switching valve 6 in the flood prevention device of (4), the switching operation of the direction switching valve 6 is performed. It is possible to select whether the car 3 is moved up and down or the waterproof panel 2 is lifted up.

  (6) In the inundation prevention device of (5), when the inundation sensing means (infiltration sensor 4) for sensing inundation into the landing 1 and the fact that the inundation is sensed by the inundation sensing means (infiltration sensor 4) is received. According to the embodiment provided with the control means (elevator control unit 52) for switching the direction switching valve 6 to auction the waterproof panel 2, it is possible to respond quickly when the risk of inundation becomes a reality. it can. Regarding the risk of flooding, for example, when a receiver 54 for receiving weather information and disaster information is installed and information that may flood is received, a signal to that effect is sent from the receiver 54 to the elevator controller 52. It is also possible to address the flooding before it becomes a reality.

  (7) In the inundation prevention apparatus of (6), the control means (elevator control unit 52) senses inundation from the inundation detection means (infiltration detection sensor 4) while the car 3 is stopped on the first floor. According to the embodiment in which the car 3 is raised to a height position where there is no inundation effect, and then the waterproof panel 2 is auctioned, after the influence on the car 3 and eventually the passenger is excluded. , Waterproof function can be demonstrated.

  (8) In the inundation prevention apparatus of (6), the control means (elevator control unit 52) is in a state where the car 3 is moving at a height position where there is no influence of inundation. 4) When it is detected that flooding has been detected, the car 3 is stopped and the waterproof panel 2 is raised, and then the car 3 is moved to the nearest floor. To minimize the impact on passengers.

  (9) Since the elevator apparatus 100 is provided with the inundation prevention device of (1) to (8), the elevator apparatus 100 having the infiltration prevention function and effect described in the above (1) to (8) is provided. be able to.

  The present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the gist of the present invention, and all technical matters included in the technical idea described in the claims are included. The subject of the present invention. The above embodiment shows a preferable example, but those skilled in the art can realize various alternatives, modifications, variations, and improvements from the contents disclosed in this specification, These are included in the technical scope described in the appended claims.

DESCRIPTION OF SYMBOLS 1 Platform 1a Floor 2 Waterproof panel 3 Car 4 Submersion detection sensor (submergence detection means)
5 Hydraulic unit (hydraulic drive means)
6 direction switching valve 7 second hydraulic jack (hydraulic drive means)
8 Second hydraulic jack (infiltration prevention means)
9a 1st hydraulic pipe 9b 2nd hydraulic pipe 10 In the tower 11 Three-way frame 11a Frame on both sides 52 Elevator control part (control means)
100 elevator equipment

Claims (9)

In the inundation prevention device that has a waterproof panel that prevents inundation into the tower, and when there is a risk of inundation at the landing, the ingress of water into the tower by the waterproof panel,
An inundation prevention device comprising an inundation prevention means for preventing the inundation by auctioning the waterproof panel from the floor of the landing. The inundation prevention device according to claim 1,
The waterproofing apparatus according to claim 1, wherein the waterproof panel is embedded in a floor surface of the landing. In the infiltration prevention device according to claim 1 or 2,
The waterproofing apparatus according to claim 1, wherein the waterproof panel is installed between the floor of the landing and the frames on both sides of the three-way frame of the landing. In the inundation prevention device according to any one of claims 1 to 3,
Hydraulic drive means for hydraulically raising and lowering the car installed in the tower,
The hydraulic drive means supplies pressure oil to the first hydraulic pipe to raise and lower the car, and supplies pressure oil to the flooding prevention means via the second hydraulic pipe to compete the waterproof panel. An inundation prevention device characterized in that The inundation prevention device according to claim 4,
The inundation preventing apparatus, wherein the first hydraulic pipe and the second hydraulic pipe are connected via a direction switching valve. The inundation prevention device according to claim 5,
Inundation sensing means for sensing inundation into the platform;
Control means for switching the direction switching valve and auctioning the waterproof panel when receiving the notification that the flooding is sensed by the flooding sensing means;
An inundation prevention device comprising: The inundation prevention device according to claim 6,
The control means raises the car to a height position where there is no influence of flooding when the car is stopped on the first floor and receives the effect of flooding from the flood sensing means. Then, the waterproofing apparatus characterized by auctioning the said waterproof panel. The inundation prevention device according to claim 6,
The control means stops the car when receiving the notification that the water has been sensed from the water immersion sensing means in a state where the car is moving at a height position where there is no influence of water flooding, and the waterproof panel And then moving the car to the nearest floor. The elevator provided with the inundation prevention apparatus of any one of Claim 1 thru | or 8.