Flood-proof device for elevator system and elevator system

Abstract

The utility model relates to a flood prevention device for an elevator system and the elevator system. The flood-proof device comprises a baffle, the baffle is adjacent to an elevator landing door and can move relative to the elevator landing door to be switched between a first state and a second state after being actuated by external force, the baffle is arranged above or on the side portion of the elevator landing door when in the first state, and the baffle is arranged on the side portion of the elevator landing door when in the second state. In the second state, the liquid stopping device is arranged in front of a sill of the elevator landing door and abuts against the ground to stop liquid from flowing into the elevator landing door; and the control part is connected with the baffle plate and is arranged to control the baffle plate to be kept in the first state conventionally. The anti-flooding device is attractive, high in reliability and low in cost, civil engineering of an elevator shaft and a hall gate is not affected, and the anti-flooding capacity of an elevator system can be effectively enhanced.

Description

Technical Field

[0001] The present disclosure relates to the technical field of elevators, and more particularly, to a flood prevention device for an elevator system and an elevator system. Background Art

[0002] Elevator systems have been widely used in modern society, which can bring great convenience to people's work, life and travel, but elevator systems may encounter some special situations during use. For example, when encountering abnormal weather and heavy rain or even extremely heavy rain, water network pipeline damage, etc., the amount of water accumulated in a short period of time may be too large to drain quickly, so the accumulated water will flow into the elevator shaft from the gap between the elevator floor door and the sill, the gap between the door panels of the elevator floor door, etc., and then accumulate in the shaft pit, causing the equipment in the shaft pit, the elevator shaft wall, etc. to malfunction or be damaged after the water enters, which will affect the safe operation of the elevator system and may cause unexpected damage to personnel, work equipment and buildings. Utility Model Content

[0003] In view of this, the present disclosure provides a flood prevention device for an elevator system and an elevator system, thereby solving or at least alleviating one or more of the above-mentioned problems and other problems existing in the prior art, or providing an alternative technical solution for the prior art.

[0004] According to one aspect of the present disclosure, firstly, a flood prevention device for an elevator system is provided, comprising:

[0005] a baffle disposed adjacent to the elevator landing door and configured to be movable relative to the elevator landing door and switch between a first state and a second state after being actuated by an external force, wherein the baffle is disposed above or to the side of the elevator landing door in the first state, and is disposed in front of the sill of the elevator landing door and abuts against the ground in the second state to prevent liquid from flowing into the elevator landing door; and

[0006] A control unit is connected to the baffle and is configured to control the baffle so that the baffle is normally maintained in the first state.

[0007] In the flood prevention device for an elevator system according to the present disclosure, optionally, the control unit is arranged on at least one side of the elevator floor door and includes a pulley, a counterweight and a tensioning component, the pulley is installed above the elevator floor door, the tensioning component is wound around the pulley and has its two ends respectively connected to the baffle and the counterweight, and the counterweight is configured so that the baffle is suspended above the elevator floor door under normal circumstances and maintained in the first state.

[0008] In the flood prevention device for an elevator system according to the present disclosure, optionally, at least one side door frame of the elevator floor door is provided with a accommodating cavity and a guide groove extending in parallel along the vertical direction, the counterweight is arranged in the accommodating cavity, the end of the baffle adjacent to the at least one side door frame is arranged in the guide groove, and a preset gap is provided between the end and the guide groove.

[0009] In the flood prevention device for an elevator system according to the present disclosure, optionally, the guide groove is communicated with the accommodating cavity, and is arranged on a side of the accommodating cavity facing the entry and exit direction of the elevator landing door.

[0010] In the flood prevention device for an elevator system according to the present disclosure, optionally, the counterweight includes a counterweight and a guide tube, the guide tube and the counterweight are configured in a long strip shape, and the counterweight is installed inside the guide tube.

[0011] In the flood prevention device for an elevator system according to the present disclosure, optionally, the baffle has a connecting portion located at the top of the baffle, and the connecting portion is configured to be detachably connected to the tensioning member.

[0012] In the flood prevention device for an elevator system according to the present disclosure, optionally, the baffle has a locking portion and / or an operating portion, the locking portion is adapted to a matching portion provided on the ground and / or the floor door frame and / or the wall of the elevator floor door for fixing the baffle in place when in the second state, and the operating portion is provided at the bottom of the baffle for accepting external force operation to actuate the baffle to move relative to the elevator floor door.

[0013] In the flood prevention device for an elevator system according to the present disclosure, optionally, the locking part includes a magnetic member and / or a fixing member, the magnetic member is engaged with at least one of the matching parts by magnetic force, the fixing member includes one or more connecting members for engaging with at least one of the matching parts through an assembly operation, and the connecting member includes a bolt; and / or, the operating part is configured to extend along the length direction of the baffle and has a protrusion protruding in a direction away from the elevator floor door.

[0014] In the flood prevention device for an elevator system according to the present disclosure, optionally, the baffle is made of the same material as the floor door frame of the elevator floor door, and the baffle is arranged to be at least partially shielded by the floor door frame and / or the outer wall of the elevator floor door when in the first state.

[0015] Secondly, according to another aspect of the present disclosure, there is also provided an elevator system, comprising:

[0016] an elevator car arranged to move up and down within an elevator shaft;

[0017] an elevator landing door, arranged at a landing, for providing passengers with access to and from the elevator car when the elevator car reaches the landing; and

[0018] An anti-flooding device for an elevator system as described in any one of the above items.

[0019] This anti-flooding device is suitable for all kinds of elevator floor doors. It has the advantages of being invisible and beautiful, easy to manufacture and install, convenient and safe to use, and no need for maintenance. It can provide reliable waterproof protection for elevator floor doors, etc., and prevent elevator shafts, etc. from being invaded by heavy water. This anti-flooding device has high reliability and low cost, and is especially not restricted by civil engineering such as elevator shafts and elevator halls, and does not affect civil engineering projects. It can effectively enhance the anti-flooding ability of elevator systems in places such as subway stations and the ground floor of commercial buildings, and improve system safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The technical solution of the present disclosure will be further described in detail below in conjunction with the accompanying drawings and embodiments. However, it should be noted that these drawings are designed for explanatory purposes only and are only intended to conceptually illustrate the structural configurations described herein, and are not necessarily drawn to scale.

[0021] Figure 1 is a schematic diagram of a three-dimensional structure of an example of an elevator system that can adopt various embodiments of the present disclosure.

[0022] Figure 2 The present invention is a three-dimensional structural schematic diagram of an embodiment of a flood prevention device for an elevator system according to the present invention, which is installed above an elevator landing door and is in a first state.

[0023] Figure 3 yes Figure 2 The illustrated embodiment of the flood prevention device is a schematic three-dimensional structural diagram when it is fixed in place in the second state.

[0024] Figure 4 yes Figure 2 The illustrated embodiment of the flood prevention device is a side view of a three-dimensional structure as seen from one side of the elevator shaft when the device is in a first state, wherein components such as a pulley, a counterweight, and a tensioning component are also shown.

[0025] Figure 5 yes Figure 2 A schematic three-dimensional structural diagram of a baffle in an embodiment of a flood prevention device is shown.

[0026] Figure 6 yes Figure 5 A schematic diagram of the partial three-dimensional structure of the top of the baffle is shown. DETAILED DESCRIPTION

[0027] Figure 12 is a perspective view of an elevator system 200, which may include an elevator car 203, a counterweight 205, a tensioning member 207, a guide rail (or track system) 209, a group (or group system) 211, a position reference system 213, and an electronic elevator controller (controller) 215. The elevator car 203 and the counterweight 205 may be connected to each other by the tensioning member 207. The tensioning member 207 may include or be configured as, for example, a rope, a steel cable, and / or a coated steel belt, etc. The counterweight 205 may be configured to balance the load of the elevator car 203, and may be configured to facilitate the movement of the elevator car 203 in opposite directions and simultaneously relative to the counterweight 205 within the elevator hoistway 217 and along the guide rail 209.

[0028] The tensioning member 207 engages a machine group 211, which is part of the overhead structure of the elevator system 200. The machine group 211 can be configured to control the movement between the elevator car 203 and the counterweight 205. The position reference system 213 can be mounted on a fixed portion at the top of the elevator shaft 217, such as on a support rod or a guide rail, and can be configured to provide a position signal related to the position of the elevator car 203 in the elevator shaft 217. In other embodiments, the position reference system 213 can be directly mounted to the moving components of the machine group 211, or can be located in other positions and / or configurations as known in the art. The position reference system 213 can be any device or mechanism for monitoring the position of the elevator car and / or counterweight as known in the art. For example, but not limited to, the position reference system 213 can be an encoder, a sensor or other system, and can include speed sensing, absolute position sensing, etc., as will be understood by those skilled in the art.

[0029] like Figure 1 As shown, the controller 215 can be located in a controller room 221 of the elevator shaft 217, and can be configured to control the operation of the elevator system 200 (and in particular the elevator car 203). For example, the controller 215 can provide a drive signal to the unit 211 to control the acceleration, deceleration, leveling, stopping, etc. of the elevator car 203. The controller 215 can also be configured to receive a position signal from the position reference system 213 or any other desired position reference device. When moving up or down along the guide rail 209 in the elevator shaft 217, the elevator car 203 can stop at one or more landings 225 as controlled by the controller 215, and passengers can enter or leave the elevator car 203 through the open elevator door 226. Although the controller 215 is shown in the controller room 221, it will be appreciated by those skilled in the art that the controller 215 can be located and / or configured elsewhere or at a location within the elevator system 200. In one embodiment, the controller can be remotely located or located in the cloud.

[0030] The unit 211 may include a motor or similar drive device for providing operating power to the elevator system 200, and such elevator drive devices are often referred to as traction machines, hoists, etc. in practical applications. According to an embodiment of the present disclosure, the unit 211 may be configured to include an electric drive motor. The power supply for the motor may be any possible power source, such as a power grid, which may be combined with other components to be supplied to the motor. The unit 211 may include a traction sheave, which may transmit force to the tensioning member 207 to move the elevator car 203 in the elevator shaft 217.

[0031] Although shown and described using a roping system including a tensioning member 207, embodiments according to the present disclosure may be equally applicable to elevator systems that employ other methods and mechanisms for moving an elevator car within an elevator shaft. For example, embodiments according to the present disclosure may be employed in a ropeless elevator system that uses a linear motor to move an elevator car, embodiments according to the present disclosure may be employed in a ropeless elevator system that uses a hydraulic lift to move an elevator car, and embodiments according to the present disclosure may be employed in a ropeless elevator system that uses a self-propelled elevator car (e.g., an elevator car equipped with friction wheels, pinch wheels, or traction wheels).

[0032] In addition, specific lifts and specific components are shown and described herein. Figure 1 The non-limiting examples are provided for illustrative and explanatory purposes only, and it should be recognized that other elevator systems can be configured to use the anti-flooding device disclosed herein to provide anti-flooding for elevator landing doors, thereby preventing the elevator shaft from being invaded by liquids such as rainwater from the outside, urban water from pipe rupture, etc., which flow into the elevator lobby floor from the outside. In addition, in order to simplify the drawings, the same or similar components and features may be marked only at one or several locations in the same drawing.

[0033] Please refer to Figures 2 to 6 The following drawings illustrate the basic structure, installation, operation and use of a flood prevention device 100 by way of example. Figure 2 and Figure 3 The general conditions of the flood prevention device 100 in the first state (or called the normal state, idle state or unused state) and the second state (or called the used state) are respectively explained. The flood prevention device of the present disclosure is described in detail below through this specific embodiment.

[0034] The flood prevention device 100 may include two parts, namely a baffle 110 and a control unit 120, wherein the baffle 110 is connected to the control unit 120, and is arranged near the elevator floor door 226 and can be moved relative to the elevator floor door 226. For example, the baffle 110 can be installed and arranged at any suitable position such as above or on the side of the elevator floor door 226 when it is idle according to application requirements, and the baffle 110 can be controlled by the control unit 120 to always be in the above position and remain in the first state. At this time, no care and maintenance are required, thereby saving considerable maintenance costs.

[0035] When encountering abnormal situations such as a flood entering the elevator lobby, and the anti-flooding device 100 is needed to protect the elevator floor door 226 from flooding, an external force can be applied to the baffle 110 to move it relative to the elevator floor door 226, and then reach the front of the sill 224 of the elevator floor door 226 and abut against the ground 223 (usually the elevator passenger waiting area) at this position, so as to prevent the unwanted liquid from flowing into the elevator floor door 226, and then prevent it from further flowing into the elevator shaft 217 and falling into the pit 219 or the subway station hall. Of course, in actual use, on the basis of the anti-flooding effect provided by the baffle 110 to the elevator floor door, waterproof equipment such as sandbags and waterproof cloth can be additionally arranged around the baffle on site to further improve the anti-flooding effect.

[0036] As used herein, in various embodiments, for example Figure 2 and Figure 5 As shown in the figures, the baffle 110 can be constructed to be roughly in the shape of a flat plate, but it should be understood that the specific shape, structure, length, height and thickness of the baffle 110 can be adaptively designed according to the specific conditions of the application site (such as the size of the elevator floor door 226). The baffle 110 can be made of one or more suitable materials such as stainless steel, aluminum alloy, plastic, etc. For example, it can be considered to use the same material as the floor door cover 227 that is generally arranged for the elevator floor door 226 (such as stainless steel, etc.). In addition, it can also be considered to use the same or similar color or decorative style as the surrounding environment (such as the door leaf, floor door cover, outer wall, etc. of the elevator floor door) for the baffle 110, so that the baffle 110 can be well hidden in the floor door system and not easily noticed, thereby achieving a good effect of being invisible under normal circumstances and not affecting the appearance of the elevator hall.

[0037] Continue to refer Figure 2 and Figure 4As used in this article, the baffle 110 can be directly arranged and maintained above the elevator floor door 226 via the control unit 120. For example, it can be considered that the baffle 110 is in the conventional first state and is completely or partially shielded by the floor door frame 227 and / or the outer wall of the elevator floor door and other surrounding objects that may be applicable on site. This not only achieves an invisible and beautiful effect, but also does not require additional storage space and can make full use of the on-site space.

[0038] In this way, since the baffle 110 is always kept in place and cannot be easily discovered and touched by irrelevant personnel, it is not easy for the baffle to be misappropriated, lost, or damaged by collision, thereby affecting the use. Therefore, the anti-flooding device 100 can be put into use in a timely, convenient and intact manner when it is urgently needed, avoiding the risks caused by loss, mismatch, long operation time, etc. in emergency situations. Therefore, it has high reliability, not only does it not require maintenance, but also has no failure and safety risks, which is beneficial to ensure the safety of the elevator system. It should be noted that in one or some embodiments, the baffle 110 can be arranged on one or both sides of the elevator floor door 226 in normal circumstances, for example, it can be hidden in the floor door frame or wall by folding, and then when it is needed, the baffle is moved out from the original position by any feasible method such as translation or rotation and placed in the second state, so as to play a role in preventing flooding for the elevator floor door, etc.

[0039] As an exemplary illustration, the control unit 120 can be configured to include a pulley 121, a counterweight 122, and a tensioning member 123. The pulley 121 can be installed above the elevator landing door 226, for example, fixed to a wall or some metal structural frames located at the elevator landing station 225. A tensioning member 123 is wound around the pulley 121, and the tensioning member 123 can include, but is not limited to, for example, a rope, a steel wire rope, etc., and its two ends are respectively connected to the baffle 110 and the counterweight 122, and the above connection method can be fixed or detachable. For example, for the baffle 110, a connecting portion 113 can be set at a suitable position on the baffle 110, such as the top, for example, in the form of one or more holes, slots, bolts, etc., and then a structural member such as a hook, a nut, etc. that is compatible with the former and fixed to the end of the tensioning member 123 is used for matching assembly, so that the tensioning member 123 and the baffle 110 can be connected together in a detachable manner.

[0040] As used herein, the weight and configuration of the counterweight 122 can be designed and configured so that the baffle 110 is suspended at a suitable position above the elevator floor door 226 in the conventional first state. At this time, the specific distance between the bottom of the baffle 110 and the top of the elevator floor door 226 can be flexibly set or adjusted according to the specific requirements of the application scenario, and the present disclosure does not impose any restrictions on this.

[0041] For example, the counterweight 122 can be optionally constructed to be in the shape of a long strip as a whole, so that part of the floor door structure can be fully utilized and it can be very cleverly hidden and arranged in the accommodation cavity 228 extending along the vertical direction in the floor door frame 227 of the elevator floor door 226. In this way, there is no need to configure additional columns for the counterweight 122 on site, and no structures such as holes or openings that may be unsafe or injurious to people are added, so the cost can be effectively reduced, and there will be no civil engineering requirements for the elevator shaft and elevator lobby, etc., and the resulting additional engineering volume, thus avoiding additional cost expenditures and construction period, and thus having obvious comprehensive cost advantages. Reference Figure 4 As used in this article, a long strip of balancing hammer and a guide tube can be configured, and the balancing hammer can be installed inside the guide tube. When in use, one end of the tensioning component 123 can be connected to the guide tube to assemble and form a counterweight 122.

[0042] As used herein, in various embodiments, the control unit 120 can be arranged on both sides of the elevator landing door 226, which is conducive to maintaining overall balance, and the desired control operation can be performed on the baffle 110 more smoothly, for example, the baffle 110 can be moved downward from the position in the normal state to the working position of contacting with the ground 223 to block the liquid in response to the external force actuation, and vice versa. It should be understood that in one or some embodiments, it is allowed to arrange the control unit 120 only on the left or right side of the elevator landing door 226, which can not only operate the baffle 110, but also bring benefits such as simplified configuration and cost saving. It should also be understood that the pulleys in the control unit 120 can be two pulleys shown as an example in this article, or can be configured in the form of a pulley group with a single pulley or more pulleys, the latter of which can help reduce the force to be applied by personnel when operating the movement of the baffle 110 in some applications, making the operation of the anti-flooding device 100 easier, more convenient and safer.

[0043] As used herein, an operating portion 112 may be provided at a suitable position on the baffle 110 so that the operating portion 112 is used to receive an external force operation, thereby actuating the baffle 110 to move relative to the elevator landing door to switch states, such as from a conventional first state to a second state in operation. Figure 5As shown in FIG. 1 and FIG. 2 , the operating part 112 can be optionally arranged at the bottom of the baffle 110 and configured to extend along the length direction of the baffle 110 and have a protrusion 112a protruding in the direction away from the elevator floor door 226. The operator can apply a force to the baffle 110 to move downward in the direction of the ground 223 by hand or using auxiliary tools such as a pull rod after climbing the ladder, thereby overcoming the force provided by the counterweight 122 and urging the baffle 110 to move downward until it reaches a position where it abuts against the ground 223, that is, enters the second state. As an optional case, one or both ends of the baffle 11 can be arranged in a guide groove 229 that can be set in a floor door frame 227, and a preset gap (which can be set as needed, such as 2-10 mm, etc.) is maintained between the baffle 11 and the guide groove 229, so as to better limit the movement of the baffle 110 along the set trajectory. The guide groove 229 can be arranged to extend parallel to the accommodating cavity 228. They can be separated and not connected, or they can remain connected, that is, a groove can be directly opened on one side of the accommodating cavity 228 facing the elevator floor door entry and exit direction to serve as the guide groove 229.

[0044] It should be noted that the flood prevention device 100 used as an example adopts a counterweight design and manual operation, and does not have an electric or hydraulic mechanism or device that can usually use the power grid, battery or hydraulic pressure as a power source. This can effectively prevent the latter from malfunctioning or being damaged and failing once encountering abnormal conditions such as flooding, thereby making it impossible to use the flood prevention device. Therefore, the use of this flood prevention device improves the system's risk resistance and has outstanding reliability. However, it should be pointed out that when practical applications require, it is still allowed to configure mechanisms or devices such as electric or hydraulic in the flood prevention device to operate the baffle, and the present disclosure does not limit them.

[0045] refer to Figure 5 As used herein, a locking portion 111 may be provided on the baffle 110 so that when the baffle 110 is used, the baffle 110 in the second state after being moved to the working position can be fixed in place by the locking portion 111. The locking portion 111 may have many feasible implementation forms, for example, one or more magnetic members 111a (such as permanent magnets such as magnets) and one or more fixing members 111b (such as bolts, latches, etc.) may be arranged at any suitable position (such as the bottom, side, etc.) on the baffle 110, and then the one or more parts used for the locking operation are matched and engaged with the corresponding matching parts set on site, such as the above-mentioned magnetic attraction between the magnetic members to achieve engagement, or the assembly operation between matching parts to achieve engagement. For the above-mentioned matching parts, they can be selected to be set on one or more of the ground, wall, elevator floor door, etc. as needed, and they can be in any feasible form such as but not limited to magnetic members, mounting holes, etc.

[0046] The anti-flooding device provided by the present disclosure can be configured for various types of elevator floor doors. It can not only be hidden in the floor door system on site without affecting the appearance of the elevator hall, but also does not require maintenance and is easy to operate, safe and reliable, and will not affect civil engineering in particular, and has obvious cost advantages. In addition, the anti-flooding device disclosed in the present disclosure can be immediately activated after being completely manually operated by personnel without tools during use, and does not need to be additionally configured and rely on, for example, electric motors, hydraulic mechanisms, etc. to provide power for operating the anti-flooding device. Therefore, in the face of abnormal conditions such as flooding, the above-mentioned power equipment may be damaged by water, which may lead to the unfavorable situation that the anti-flooding device cannot be normally operated, and potential safety risks are effectively prevented. Therefore, the anti-flooding device can be widely configured and applied to places such as rail transit stations (such as subways, railway stations), the ground floor of commercial buildings or large venues, which is very helpful to enhance the anti-flooding ability of the elevator system, and has a low-cost advantage while improving the safety performance of the system.

[0047] The above only illustrates in detail the anti-flooding device for elevator system and elevator system according to the present disclosure by way of example. These examples are only used to illustrate the principle and implementation method of the present disclosure, but not to limit the present disclosure. Those skilled in the art may make various modifications and improvements without departing from the scope of the present disclosure. Therefore, all equivalent technical solutions shall belong to the scope of the present disclosure and be defined by the claims of the present disclosure.

Claims

1. A flood prevention device for an elevator system, characterized in that: include: a baffle disposed adjacent to the elevator landing door and configured to be movable relative to the elevator landing door and switch between a first state and a second state after being actuated by an external force, wherein the baffle is disposed above or to the side of the elevator landing door in the first state, and is disposed in front of the sill of the elevator landing door and abuts against the ground in the second state to prevent liquid from flowing into the elevator landing door; and A control unit is connected to the baffle and is configured to control the baffle so that the baffle is normally maintained in the first state.

2. The flood prevention device for an elevator system according to claim 1, wherein: The control unit is arranged on at least one side of the elevator floor door and includes a pulley, a counterweight and a tensioning component. The pulley is installed above the elevator floor door. The tensioning component is wound around the pulley and its two ends are respectively connected to the baffle and the counterweight. The counterweight is configured so that the baffle is suspended above the elevator floor door and maintained in the first state under normal circumstances.

3. The flood prevention device for an elevator system according to claim 2, wherein: At least one side door frame of the elevator floor door is provided with a accommodating cavity and a guide groove extending in parallel along the vertical direction, the counterweight is arranged in the accommodating cavity, the end of the baffle adjacent to the at least one side door frame is arranged in the guide groove, and a preset gap is provided between the end and the guide groove.

4. The flood prevention device for an elevator system according to claim 3, wherein: The guide groove is communicated with the accommodating cavity and is arranged on a side of the accommodating cavity facing the entry and exit direction of the elevator landing door.

5. The flood prevention device for an elevator system according to claim 2, wherein: The counterweight includes a balance weight and a guide tube. The guide tube and the balance weight are configured in a long strip shape, and the balance weight is installed inside the guide tube.

6. The flood prevention device for an elevator system according to claim 2, wherein: The baffle has a connecting portion located at the top of the baffle, and the connecting portion is configured to be detachably connected to the tensioning component.

7. The flood prevention device for an elevator system according to claim 1, wherein: The baffle has a locking portion and / or an operating portion, and the locking portion is adapted to a matching portion arranged on the ground and / or the door frame and / or the wall of the elevator floor door to fix the baffle in place when it is in the second state. The operating portion is arranged at the bottom of the baffle to receive external force operation to actuate the baffle to move relative to the elevator floor door.

8. The flood prevention device for an elevator system according to claim 7, wherein: The locking portion includes a magnetic piece and / or a fixing piece, the magnetic piece is engaged with at least one of the matching parts by magnetic force, the fixing piece includes one or more connecting pieces for engaging with at least one of the matching parts by assembly operation, the connecting piece includes a bolt; and / or, the operating portion is configured to extend along the length direction of the baffle and has a protrusion protruding in a direction away from the elevator floor door.

9. The flood prevention device for an elevator system according to claim 1, wherein: The baffle is made of the same material as the door frame of the elevator door, and the baffle is arranged to be at least partially shielded by the door frame and / or the outer wall of the elevator door when in the first state.

10. An elevator system, characterized in that: include: an elevator car arranged to move up and down within an elevator shaft; An elevator landing door, which is arranged at a landing and is used to provide passengers with access to and from the elevator car when the elevator car reaches the landing; as well as The flood prevention device for an elevator system according to any one of claims 1 to 9.

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