Elevator safety window
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DOPPLER ELEVATOR CO LTD
- Filing Date
- 2025-06-16
- Publication Date
- 2026-06-23
AI Technical Summary
The existing elevator safety windows are not linked to the elevator power supply system, which can easily cause accidental activation and make escape inconvenient.
Design an elevator safety window that uses a locking mechanism that links an electrical switch with the elevator power supply system. The window cover is locked when powered on during normal operation and automatically unlocks in case of a malfunction. It is also equipped with a mechanical lock as a backup unlocking method. Escape devices such as escape ropes, safety belts, and window breakers are also provided to ensure that the emergency escape route is unobstructed.
It enables automatic unlocking of window covers in the event of elevator malfunction, providing an emergency escape route, ensuring passenger safety and reliability, preventing misoperation, and improving escape efficiency.
Smart Images

Figure CN224394369U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of elevator technology, specifically to an elevator safety window. Background Technology
[0002] Elevators have become an indispensable vertical transportation tool in people's daily lives. However, elevator entrapment incidents occur frequently, causing great psychological panic and safety hazards to passengers. Traditional elevator safety windows are mostly fixed, failing to provide passengers with an effective escape route in emergencies.
[0003] Fixed safety windows require tools to remove bolts or damage the structure, which takes a long time and is difficult to meet the time requirements for emergency escape. In the existing technology, although some safety windows are equipped with mechanical locks, they are not linked to the elevator power supply system, which can easily cause accidental activation and make escape inconvenient. In addition, there is a lack of auxiliary escape tools, and there are problems such as complicated operation and low reliability. Utility Model Content
[0004] The purpose of this utility model is to provide an elevator safety window that can effectively solve the technical problem in the prior art that although the safety window is equipped with a mechanical lock, it is not linked to the elevator power supply system, which can easily cause accidental activation.
[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:
[0006] An elevator safety window includes:
[0007] A window cover, which is rotatably mounted on the top of the elevator car, is used to open or close the escape hatch located on the top of the elevator car;
[0008] A locking device for locking the window cover to the top of the elevator car;
[0009] The locking device includes an electrical switch and a mechanical lock. The electrical switch is linked to the elevator power supply system and locks the window cover when the elevator is running normally. The mechanical lock is equipped with a key for manual unlocking. The window cover includes a window cover body and a light-transmitting part. A viewing window is provided on the window cover body, and the light-transmitting part is installed at the viewing window position.
[0010] The window cover body is made of hot-rolled steel plate, and the light-transmitting part is made of high-strength tempered glass, which is embedded in the window cover body.
[0011] Furthermore, the elevator car is equipped with an escape device to assist passengers in escaping through the window cover.
[0012] Furthermore, the escape device includes an escape rope, a seat belt, and a window breaker; one end of the escape rope is used to be fixed to the car roof, the escape rope and seat belt are used to assist passengers in escaping through the window, and the window breaker is used to break the window glass in an emergency.
[0013] Furthermore, the window cover is mounted on the top of the elevator car via a pivot or hinge.
[0014] Furthermore, the electrical switch is connected to the elevator control system. When an abnormal power outage or malfunction is detected in the elevator, it automatically triggers an unlocking signal and releases the electrical lock of the window cover.
[0015] The inner edge of the window cover is provided with a sealing strip, which forms a waterproof and dustproof sealing structure with the car roof when the window cover is closed.
[0016] Furthermore, an escape sign is provided on the top of the elevator car. The escape sign is made of fluorescent material and points in the direction of the window cover opening.
[0017] Compared with the prior art, the present invention has the following beneficial effects:
[0018] In its specific implementation, this utility model links an electrical switch with the elevator power supply system. This ensures that the electrical switch locks the window cover during normal elevator operation, and releases the lock in case of a malfunction. The window cover provides an emergency escape route; the electrical switch, linked to the elevator power supply system, remains locked during normal operation to prevent accidental opening. Simultaneously, a mechanical lock serves as a backup unlocking method, ensuring key operation is still possible during power outages. The viewing window and light-transmitting section facilitate passenger observation of the external environment. This utility model employs a dual locking mechanism, balancing safety and reliability. This utility model effectively solves the technical problem in existing technologies where safety windows, although equipped with mechanical locks, are not linked to the elevator power supply system, easily leading to accidental activation and inconvenient escape. Attached Figure Description
[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.
[0020] Figure 1 This is a schematic diagram of the utility model in use.
[0021] Figure 2 This utility model Figure 1 A magnified view of a portion of point A in the middle.
[0022] Figure 3This is a schematic diagram showing the connection between this utility model and the elevator car top.
[0023] Figure 4 This utility model Figure 3 One of the orthographic projection views.
[0024] Figure 5 This is the second of three orthographic projection views of the present invention.
[0025] Figure label:
[0026] 101 Window cover, 102 Elevator car top, 103 Locking device, 104 Electrical switch, 105 Mechanical lock, 106 Window cover body, 107 Light-transmitting part, 108 Lock tongue, 109 First locking plate, 110 Second locking plate, 111 Locking hole, 112 Hinge. Detailed Implementation
[0027] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.
[0028] In the description of the embodiments of this utility model, it should be understood that the terms "length", "vertical", "horizontal", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model.
[0029] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0030] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.
[0031] In this embodiment of the invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0032] The following disclosure provides many different implementations or examples for different structures of the embodiments of the present invention. To simplify the disclosure of the embodiments of the present invention, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the embodiments of the present invention. Furthermore, reference numerals and / or reference letters may be repeated in different examples of the embodiments of the present invention; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various implementations and / or arrangements discussed.
[0033] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.
[0034] See Figures 1-5 This embodiment discloses an elevator safety window, including:
[0035] A window cover 101 is rotatably mounted on the elevator car top 102 and is used to open or close the escape hatch located on the elevator car top 102.
[0036] Locking device 103, the locking device 103 is used to lock the window cover 101 onto the elevator car top 102;
[0037] The locking device 103 includes an electrical switch 104 and a mechanical lock 105. The electrical switch 104 is linked to the elevator power supply system and is powered on to lock the window cover 101 when the elevator is running normally. The mechanical lock 105 is equipped with a key for manual unlocking. The window cover 101 includes a window cover body 106 and a light-transmitting part 107. The window cover body 106 is provided with a viewing window, and the light-transmitting part 107 is installed at the viewing window position.
[0038] In its specific implementation, this utility model links the electrical switch 104 with the elevator power supply system. This ensures that during normal elevator operation, the electrical switch 104 is energized and locks the window cover 101, and can release the lock in case of a malfunction. The window cover 101 provides an emergency escape route; the electrical switch 104, linked to the elevator power supply system, remains locked during normal operation to prevent accidental opening. Simultaneously, a mechanical lock 105 serves as a backup unlocking method, ensuring key operation is still possible during power outages. The viewing window and light-transmitting part 107 facilitate passenger observation of the external environment. This utility model employs a dual locking mechanism, balancing safety and reliability. This utility model effectively solves the technical problem in existing technologies where safety windows are equipped with mechanical locks 105 but are not linked to the elevator power supply system, resulting in inconvenient escape routes.
[0039] Furthermore, the window cover body 106 is made of hot-rolled steel plate, and the light-transmitting part 107 is made of high-strength tempered glass, which is embedded in the window cover body 106. The hot-rolled steel plate has high strength and resistance to deformation, ensuring the stability of the overall structure of the window cover 101. At the same time, the use of high-strength tempered glass can break into blunt-angled particles, avoiding secondary injury.
[0040] Furthermore, in some preferred embodiments, an escape device is installed inside the elevator car to assist passengers in escaping through the window cover 101. The escape device is integrated into a prominent location within the car for easy access by passengers. It provides a variety of escape tools to meet the needs of different emergency scenarios. The centralized configuration of the escape device reduces the time passengers spend searching for tools in a panic, and the combination of multiple tools improves the success rate of escape.
[0041] Furthermore, the escape device includes an escape rope, a safety belt, and a window breaker. One end of the escape rope is secured to the elevator car roof. The escape rope and safety belt assist passengers in escaping through the windows, and the window breaker is used to break the window glass in emergencies. The window breaker addresses the emergency window-breaking needs when the key is lost or the mechanical lock 105 fails. The escape rope, in conjunction with the safety belt, ensures the safety of high-altitude escapes. The overall operation is simple and requires no professional training. A connecting loop is provided at the end of the escape rope for easy attachment to the elevator car roof.
[0042] The window cover 101 is rotatably mounted on the elevator car top 102 via a pivot or hinge 112.
[0043] Furthermore, the electrical switch 104 is communicatively connected to the elevator control system. When an abnormal power outage or malfunction is detected, it automatically triggers an unlocking signal and releases the electrical lock of the window cover 101. The elevator control system monitors the operating status in real time. In case of an anomaly, it sends an unlocking command to the locking device 103, and the electrical switch 104 releases the window cover 101. This automatic unlocking reduces manual intervention, improves response speed, and deeply integrates with the elevator system, avoiding secondary risks caused by delayed unlocking. Abnormal power outages include power failures, control system malfunctions, or safety circuit disconnections.
[0044] Furthermore, a sealing strip is provided on the inner edge of the window cover 101. When the window cover 101 is closed, the sealing strip forms a waterproof and dustproof seal with the car roof. The sealing strip is made of weather-resistant rubber material, which adheres tightly to the car roof under pressure, preventing external moisture and dust from entering the car, thereby improving the car's airtightness and extending the service life of elevator components.
[0045] Furthermore, the elevator car top 102 is equipped with an escape sign made of fluorescent material, which points to the opening direction of the window cover 101. The fluorescent material absorbs light and continues to emit light, indicating the escape route in the dark. The arrow clearly points to the operating position of the window cover 101, significantly improving the visibility of the sign in dark environments.
[0046] In this embodiment, the electrical switch 104 is an electromagnetic lock.
[0047] Furthermore, in practical applications, a first locking plate 109 is provided on the elevator car top 102, and a second locking plate 110 is provided on the window cover body 106. A lock slot 111 is provided on the first locking plate 109, and the locking tongue 108 of the mechanical lock 105 cooperates with the lock slot 111 to achieve the purpose of locking.
[0048] An electrical switch is mounted on the first locking plate 109, and the electrical switch is used to lock and fix the second locking plate 110.
[0049] Furthermore, the escape device also includes a rope ladder. The elevator car top 102 is equipped with hooks. After the window cover 101 is opened, the rope ladder can be hung on the hooks, which is convenient for the elderly and children to use and improves the ease of escape.
[0050] Furthermore, a voice prompt module is installed inside the elevator car. The voice prompt module is connected to the elevator control room. In the event of an elevator malfunction, the voice prompt module will automatically trigger voice guidance to assist passengers in operation.
[0051] Furthermore, in practical applications, light-sensitive LED lights are installed next to the escape signs. These lights automatically illuminate during power outages to supplement the luminous intensity of the fluorescent materials. The LED light strip displays a dynamic arrow indicating the opening direction of the window cover 101, enhancing visual guidance. The active light source ensures the visibility of the signs in extremely dark environments, and the dynamic arrow provides more intuitive guidance for operation, shortening escape time.
[0052] The escape device is installed inside the elevator car and is installed in a recessed manner in actual applications to avoid occupying the available space of the elevator.
[0053] To facilitate a better understanding of this invention by those skilled in the art, the following detailed description is provided in conjunction with specific implementation examples.
[0054] An elevator safety window includes a window cover 101, a locking device 103, and an escape device. The window cover 101 is fixedly installed on the elevator car top 102 and is fixed to the elevator car top 102 by a hinge 112. The locking device 103 is used to lock the window cover 101 on the elevator car top, and the escape device is used to unlock the window sash and assist passengers in escaping in an emergency.
[0055] The window cover 101 is made of hot-rolled steel plate and high-strength tempered glass, and has good light transmission and impact resistance.
[0056] The locking device 103 comprises an electrical switch 104 and a mechanical lock 105, which locks the window cover 101 during normal elevator operation. In the event of a power outage or malfunction, the window cover 101 can be manually unlocked from inside the car using a key. Furthermore, in the event of a power outage or malfunction and if the key is not found, the escape device (window breaker) installed in the car can be used to break the glass of the window cover 101, allowing manual unlocking of the safety window and thus achieving escape.
[0057] The escape device is placed inside the elevator car and includes an escape rope, a safety belt, and a window breaker. The escape rope and safety belt are used to assist passengers in escaping through the window, and the window breaker is used to break the window glass in an emergency, and then manually unlock the safety window to achieve the purpose of escape.
[0058] A window breaker is used to break window glass in an emergency (such as when the elevator is out of service or malfunctioning and the key is not found), and then manually unlock the safety window to achieve escape.
[0059] In practical applications, when the elevator is running normally, the electrical switch 104 of the locking device 103 is energized, and the mechanical component window cover 101 of the locking device 103 is locked on the top of the elevator car to prevent passengers from opening the window at will and to ensure the safety of elevator operation.
[0060] In the event of an elevator malfunction or power outage, the electrical switch 104 of the locking device 103 cuts off power, ensuring passenger safety when passing through the window cover 101. Passengers can manually operate the mechanical lock 105 to unlock the window cover 101. After opening the window cover 101, passengers can use escape ropes and safety belts to escape through the window. If the window cover 101 cannot be opened normally, passengers can use a window breaker to break the window glass and create an escape route.
[0061] This utility model has the advantages of simple structure, convenient operation, and safety and reliability. It can provide an escape route for passengers in emergency situations and ensure their safety. At the same time, the window cover 101 is made of hot-rolled steel plate and high-strength tempered glass, which has good light transmission and impact resistance. The electrical switch 104 ensures the safety of passengers when passing through the window cover 101.
[0062] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.
[0063] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. It should be noted that any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. An elevator safety window, characterized in that... ,include: A window cover, which is rotatably mounted on the top of the elevator car, is used to open or close the escape hatch located on the top of the elevator car; A locking device for locking the window cover to the top of the elevator car; The locking device includes an electrical switch and a mechanical lock. The electrical switch is linked to the elevator power supply system and locks the window cover when the elevator is running normally. The mechanical lock is equipped with a key for manual unlocking. The window cover includes a window cover body and a light-transmitting part. A viewing window is provided on the window cover body, and the light-transmitting part is installed at the viewing window position.
2. The elevator safety window according to claim 1, characterized in that: The window cover body is made of hot-rolled steel plate, and the light-transmitting part is made of high-strength tempered glass, which is embedded in the window cover body.
3. The elevator safety window according to claim 1, characterized in that: The elevator car is equipped with an escape device to assist passengers in escaping through the window cover.
4. An elevator safety window according to claim 3, characterized in that: The escape device includes an escape rope, a seat belt, and a window breaker; one end of the escape rope is used to be fixed to the car roof, the escape rope and seat belt are used to assist passengers in escaping through the windows, and the window breaker is used to break the window glass in an emergency.
5. An elevator safety window according to claim 3, characterized in that: The window cover is mounted on the top of the elevator car via a pivot or hinge.
6. An elevator safety window according to claim 1, characterized in that: The electrical switch is connected to the elevator control system. When an abnormal power outage or malfunction is detected in the elevator, it automatically triggers an unlocking signal and releases the electrical lock of the window cover.
7. An elevator safety window according to claim 1, characterized in that: A sealing strip is provided on the inner edge of the window cover, which forms a waterproof and dustproof seal with the car roof when the window cover is closed.
8. An elevator safety window according to claim 1, characterized in that: An escape sign is installed on the top of the elevator car. The escape sign is made of fluorescent material and points in the direction of the window cover opening.