Fire alarm device outside fire elevator landing door
By installing fire alarms and lights outside the doors of each elevator floor and using control contactors and switching power supply designs, the problem of passengers having difficulty identifying the status of fire elevators is solved, achieving effective identification and psychological comfort for passengers.
Patent Information
- Application Number
- CN202422813744.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-19
- Publication Date
- 2025-09-26
- Estimated Expiration
- 2034-11-19
AI Technical Summary
In fire elevators, it is difficult for elderly passengers and visually impaired passengers to identify whether the elevator is in fire operation state, which leads to a bad mentality among passengers.
Fire alarms and fire lights are installed outside the doors of each elevator floor. Through the design of control contactors and switching power supplies, the fire alarms and fire lights continue to work in the fire operation state, ensuring that passengers can identify the elevator status.
It effectively helps elderly and visually impaired passengers identify the operating status of fire elevators and maintains a good mentality of passengers.
Smart Images
Figure CN223385661U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of elevators, in particular to a fire alarm device outside a fire elevator floor door. Background Art
[0002] With the advancement of the times and the increasing number of high-rise buildings, effective firefighting and rescue operations on high floors are becoming increasingly important. In firefighting elevator systems, when the elevator is in firefighting operation, only the floor or symbol indicating the location of the firefighting car is visible outside the firefighting elevator door on each floor. This makes it difficult for elderly passengers and those with visual impairments to identify whether the firefighting elevator is operating in firefighting mode. Therefore, developing a simpler and more effective identification device that allows passengers to effectively identify whether the firefighting elevator is in firefighting operation from outside the firefighting elevator door will become a key issue that firefighting elevators must address. Utility Model Content
[0003] The purpose of the utility model is to provide a fire alarm device outside the door of a fire elevator, which solves the problem that when the fire elevator is in a fire operation state, passengers can hear and see outside the door of the fire elevator on each floor that the fire elevator is in a fire state, so that the passengers can maintain a good mentality.
[0004] The technical solution of the utility model is:
[0005] A fire alarm device outside a fire elevator floor door, comprising:
[0006] Control mainboard, connected to receive fire signal;
[0007] The function board is connected to the control main board, receives the control signal from the control main board, and then controls the fire alarms A1, A2, A3...An, and the fire lights L1, L2, L3...Ln;
[0008] The control contactor includes coil KM and normally open contacts KM1 and KM2. Coil KM is connected to the function board to control power on.
[0009] Fire alarms A1, A2, A3...An are all connected and controlled by the normally open contact KM1;
[0010] Fire lights L1, L2, L3...Ln are all connected and controlled by the normally open contact KM2;
[0011] The switching power supply inputs AC220V alternating current and outputs DC24V direct current voltage to power various components.
[0012] Preferably, the fire alarms A1, A2, A3...An are connected in parallel to form an alarm group, one end of the alarm group is connected to the COM negative terminal of the switching power supply, and the other end is connected to the 24V output terminal of the switching power supply through a normally open contact KM1 connected in series;
[0013] The fire lights L1, L2, L3...Ln are connected in parallel to form an alarm group fire light group. One end of the fire light group is connected to the COM negative terminal of the switching power supply, and the other end is connected to the 24V output terminal of the switching power supply through the series normally open contact KM2.
[0014] Preferably, one end of the coil KM of the control contactor is connected to the 24V output terminal of the switching power supply, and the other end is connected to the output control terminal D1 of the function board.
[0015] Preferably, the functional board is further provided with a data negative signal terminal DM, and the data negative signal terminal DM is connected to the COM negative terminal of the switching power supply.
[0016] Preferably, a power supply switch QF is connected in series to the AC220V alternating current input of the switching power supply.
[0017] Preferably, the power switch QF, switching power supply, control main board, function board and control contactor are installed in a control cabinet of the elevator.
[0018] Preferably, the fire alarms A1, A2, A3...An and the fire lights L1, L2, L3...Ln are installed outside the door of each elevator floor, and one fire alarm and one fire light are installed outside the door of each elevator floor.
[0019] The advantages of the utility model are:
[0020] This fire-fighting elevator operates like a conventional passenger elevator during normal use. However, once a fire signal is input into the elevator control panel, the elevator enters firefighting mode, and the fire alarms and lights on each floor activate and remain operational. Passengers outside the floor doors can easily identify the elevator as being in firefighting mode, allowing them to maintain a positive attitude. This design not only allows for effective identification by elderly passengers, but also by passengers with impaired vision and hearing. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments:
[0022] Figure 1 This is a schematic diagram of the fire alarm device outside the fire elevator floor door of the present invention. DETAILED DESCRIPTION
[0023] like Figure 1As shown, the fire alarm device outside the floor door of a fire-fighting elevator proposed in the present invention includes the following components.
[0024] The switching power supply inputs AC220V alternating current and outputs DC24V direct current voltage to power various components. The switching power supply inputs AC220V alternating current and is connected in series with a power supply switch QF.
[0025] Control mainboard, receive fire signal through 301 and X5 terminals;
[0026] The function board is connected to the control main board, receives the control signal from the control main board, and then controls the fire alarms A1, A2, A3...An, and the fire lights L1, L2, L3...Ln;
[0027] The control contactor includes a coil KM and normally open contacts KM1 and KM2. Coil KM is connected to the function board to control power on. One end of the control contactor's coil KM is connected to the 24V output terminal of the switching power supply, and the other end is connected to the output control terminal D1 of the function board. The function board also has a negative data signal terminal DM, which is connected to the negative COM terminal of the switching power supply.
[0028] Fire alarms A1, A2, A3...An are all connected and controlled by the normally open contact KM1; fire lights L1, L2, L3...Ln are all connected and controlled by the normally open contact KM2; the fire alarms A1, A2, A3...An are connected in parallel to form an alarm group, one end of the alarm group is connected to the COM negative terminal of the switching power supply, and the other end is connected to the 24V output terminal of the switching power supply through the series normally open contact KM1; the fire lights L1, L2, L3...Ln are connected in parallel to form an alarm group and a fire light group, one end of the fire light group is connected to the COM negative terminal of the switching power supply, and the other end is connected to the 24V output terminal of the switching power supply through the series normally open contact KM2.
[0029] The fire alarms A1, A2, A3...An and fire lamps L1, L2, L3...Ln are installed outside the landing doors of each elevator. A fire alarm and a fire lamp are installed outside the landing doors of each elevator.
[0030] The power supply switch QF, switching power supply, control main board, function board and control contactor are installed in the control cabinet of the elevator.
[0031] This embodiment adds an AC220V power switch QF, a function board, a control contactor KM, and a switching power supply to the control cabinet. Fire alarms A1, A2, A3, ..., An, and fire lights L1, L2, L3, ..., Ln are installed outside each floor door. The AC220V power switch QF supplies power to the switching power supply, which then outputs a DC24V voltage directly to the control board and function board. The DC24V output from the switching power supply is then transferred to the control contactor coil KM via the function board. The DC24V output from the switching power supply controls the fire alarms A1, A2, A3, ..., An on each floor through the control contactor's normally open contact KM1, and the DC24V output from the switching power supply controls the fire lights L1, L2, L3, ..., Ln on each floor through the control contactor's normally open contact KM2. During normal use of the fire elevator, the building's fire protection system sends no signal to the control board, the function board outputs no signal, and the fire alarms and fire lights are inactive.
[0032] In this embodiment, the AC220V power supply switch QF is closed to supply power to the switching power supply. The switching power supply inputs AC220V and outputs DC24V to supply power to the control main board and the function board. The control main board and the function board always maintain a communication state. When the control main board receives the fire signal from the building to the control main board, the elevator enters the fire operation state. After receiving the fire signal, the function board outputs, the control contactor coil KM is energized and attracted, the normally open contact KM1 of the contactor is closed, the fire alarm A1, A2, A3...An is energized and the fire alarm starts to work and remains in the fire alarm state. The normally open contact KM2 of the contactor is closed, the fire lights L1, L2, L3...Ln are energized and the fire lights are lit and continue to light.
[0033] The above embodiments are intended only to illustrate the technical concepts and features of the present invention. Their purpose is to enable those familiar with the art to understand the contents of the present invention and implement them accordingly. They are not intended to limit the scope of protection of the present invention. Any modifications based on the spirit of the main technical solution of the present invention shall be included in the scope of protection of the present invention.
Claims
1. A fire alarm device outside the door of a fire elevator, characterized in that: include: Control mainboard, connected to receive fire signal; The function board is connected to the control main board, receives the control signal from the control main board, and then controls the fire alarms A1, A2, A3...An, and the fire lights L1, L2, L3...Ln; The control contactor includes coil KM and normally open contacts KM1 and KM2. Coil KM is connected to the function board to control power on. Fire alarms A1, A2, A3...An are all connected and controlled by the normally open contact KM1; Fire lights L1, L2, L3...Ln are all connected and controlled by the normally open contact KM2; The switching power supply inputs AC220V alternating current and outputs DC24V direct current voltage to power various components.
2. The fire alarm device outside the fire elevator floor door according to claim 1 is characterized in that: The fire alarms A1, A2, A3...An are connected in parallel to form an alarm group, one end of the alarm group is connected to the COM negative terminal of the switching power supply, and the other end is connected to the 24V output terminal of the switching power supply through the normally open contact KM1 connected in series; The fire lights L1, L2, L3...Ln are connected in parallel to form an alarm group fire light group. One end of the fire light group is connected to the COM negative terminal of the switching power supply, and the other end is connected to the 24V output terminal of the switching power supply through the series normally open contact KM2.
3. The fire alarm device outside the fire elevator floor door according to claim 2 is characterized in that: One end of the coil KM of the control contactor is connected to the 24V output terminal of the switching power supply, and the other end is connected to the output control terminal D1 of the function board.
4. The fire alarm device outside the fire elevator floor door according to claim 3 is characterized in that: The function board is further provided with a data negative signal terminal DM, and the data negative signal terminal DM is connected to the COM negative terminal of the switching power supply.
5. The fire alarm device outside the fire elevator floor door according to claim 1 is characterized in that: The switching power supply has a power supply switch QF connected in series to the AC220V alternating current input.
6. The fire alarm device outside the fire elevator floor door according to claim 5, characterized in that: The power supply switch QF, switching power supply, control main board, function board and control contactor are installed in the control cabinet of the elevator.
7. The fire alarm device outside the fire elevator floor door according to claim 6, characterized in that: The fire alarms A1, A2, A3...An and fire lamps L1, L2, L3...Ln are installed outside the landing doors of each elevator. A fire alarm and a fire lamp are installed outside the landing doors of each elevator.