Elevator fire emergency control device
By designing the emergency control device for elevator fire fighting, using emergency control box and relay short-circuit door lock circuit and safety circuit, the safety risk that firefighters cannot return due to floor door locks or safety circuit failures during the rescue process is solved, and the dual effect of emergency operation of the elevator in the event of a fault is achieved.
Patent Information
- Application Number
- CN202421577219.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-05
- Publication Date
- 2025-04-01
- Estimated Expiration
- 2034-07-05
AI Technical Summary
When firefighters are in rescue, if the floor door lock or safety circuit on the floor is burned due to a fire, causing the circuit to be broken, the firefighters are unable to return to the fire base station normally, and face the problems of trapped and safety risks.
An emergency control device for elevator fire fighting is designed, including an emergency control box installed on the top of the car and an operating box in the car. The emergency control box is integrated with a relay, triggered by a secondary fire switch, short-circuit the door lock circuit and safety circuit, and cut off the door machine power, allowing the elevator to perform an emergency operation in the event of a failure.
It realizes that in the case of door lock or safety circuit failure, the elevator can carry out an emergency operation to ensure that firefighters and passengers can safely leave the fire floor, avoid the risk of firefighters being trapped, and automatically exit the emergency state after the emergency operation is completed, ensuring the subsequent safe use of the elevator.
Smart Images
Figure CN222699775U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of elevators, in particular to an elevator fire emergency control device. Background Art
[0002] At present, elevators on the domestic market generally have fire-fighting functions, which are designed to ensure the safety of personnel in the event of a fire. When a fire occurs, the elevator system is triggered to enter the fire-fighting state through the fire-fighting box switch at the fire-fighting base station. At this time, the elevator first enters the first stage of fire-fighting, that is, it runs to the preset fire-fighting base station and stops responding to external operation instructions to ensure that the elevator does not participate in the evacuation of personnel in the fire scene. After the firefighters arrive, they can enter the elevator car, use a professional key to open the small switch door in the car, and turn on the firefighter switch, and then control the elevator's opening / closing operation through the open / close door button. Afterwards, the firefighters can operate the floor button in the car to make the elevator run in express mode to the designated rescue floor for personnel rescue.
[0003] However, the existing elevator fire control scheme has significant defects. Specifically, when firefighters are rescuing people on the rescue floor, if the floor door lock or safety circuit of the floor is burned due to fire, resulting in a circuit break, the firefighters will not be able to return to the fire station in a normal way. In this case, the firefighters may be trapped on the fire floor and face great safety risks. Therefore, we have made improvements to this and proposed an elevator fire emergency control device. Summary of the invention
[0004] The purpose of the utility model is to solve the existing problem that when firefighters are rescuing people on a rescue floor, if the door lock or safety circuit of the floor is burned out due to fire, resulting in a circuit break, the firefighters will not be able to return to the fire base station in a normal way.
[0005] In order to achieve the above-mentioned purpose of the invention, the utility model provides an elevator fire emergency control device to improve the above-mentioned problem.
[0006] The specific application is as follows:
[0007] An elevator fire emergency control device, comprising:
[0008] An emergency control box installed on the top of the car, wherein the emergency control box is integrated with a relay for performing electrical control operations under specific conditions;
[0009] An operating box installed in the car is connected to a relay in an emergency control box. A primary fire switch and a secondary fire switch are provided on the operating box, and the secondary fire switch is used for operation by firefighters.
[0010] As a preferred technical solution of the present application, the emergency control box is connected to a car top control box, and the car top control box is connected to a control cabinet.
[0011] As a preferred technical solution of the present application, the control cabinet has a detection circuit for detecting whether the elevator landing door is damaged due to fire.
[0012] As a preferred technical solution of the present application, the car top control box is installed on the top of the car.
[0013] As a preferred technical solution of the present application, when the secondary fire switch is triggered, the relay in the emergency control box short-circuits the elevator door lock circuit and the safety circuit through a dry contact method, and simultaneously cuts off the power supply of the elevator door machine to realize manual operation of the elevator door in the event of an electrical failure.
[0014] As a preferred technical solution of the present application, the emergency control box is also connected to a buzzer to remind firefighters and passengers in the event of an electrical failure of the elevator door; it is convenient for firefighters and passengers to understand the special operating mode of the front elevator;
[0015] As a preferred technical solution of the present application, when the door lock circuit and the safety circuit are short-circuited and the door machine loses power, the car performs an emergency run to take the firefighters and passengers away from the fire floor to a safe area;
[0016] As the preferred technical solution of the present application, after the emergency operation is completed, the emergency control box is used to control the car to return to the firefighter operation state, and the detection circuit re-detects the door lock circuit, safety circuit and door in place status to ensure the safety of the elevator in subsequent use.
[0017] As the preferred technical solution of the present application, after the car completes the emergency operation and returns to the firefighter operation state, it automatically locks the re-triggering of the secondary fire switch to prevent repeated emergency operation caused by unauthorized or misoperation. If it is necessary to enter the emergency state again, it must be done after passing specific procedures or authority verification, under the premise that the elevator is in normal firefighter operation state and meets specific safety conditions.
[0018] As a preferred technical solution of the present application, the car top control box is also used to cut off the internal and external elevator call responses of the car when the fire switch is triggered once.
[0019] Compared with the prior art, the utility model has the following beneficial effects:
[0020] In the scheme of this application:
[0021] In case of a fire, the car components in the shaft are not easily burned in a short time. Therefore, the present application adds an emergency control box and a secondary fire switch on the top of the car, and the emergency control box is integrated with a relay. When the firefighters take the elevator for rescue and there is a problem with the door lock or the safety circuit, the firefighters trigger the emergency control box placed on the top of the car by dialing the secondary fire switch. The relay in the emergency control box short-circuits the door lock circuit and the safety circuit through dry contacts and sounds an alarm to prompt the firefighters and passengers. The elevator enters an emergency state. At this time, the power supply of the door machine will be cut off and personnel can manually open / close the door, and the elevator is allowed to run once when the door machine loses power and the safety circuit and the door lock circuit are short-circuited, so as to stay away from the fire floor; after the operation is completed, the secondary fire protection is automatically exited and returned to the firefighter operation, that is, the primary fire protection state. At this time, due to abnormalities in the door lock or safety circuit, the elevator can no longer run, preventing firefighters from taking the elevator. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 A schematic diagram of the structure of the elevator fire emergency control device provided for this application;
[0023] Figure 2 A schematic diagram of the structure of an emergency control box of an elevator fire emergency control device provided in this application;
[0024] Figure 3 A control wiring diagram between the emergency control box and the car top signal of the elevator fire emergency control device provided in this application;
[0025] Figure 4 Circuit diagram of the elevator fire emergency control device provided for this application;
[0026] Figure 5 The elevator fire emergency control device provided in this application Figure 4 Schematic diagram of part A;
[0027] Figure 6 The elevator fire emergency control device provided in this application Figure 4 Schematic diagram of part B;
[0028] Figure 7 The elevator fire emergency control device provided in this application Figure 4 Schematic diagram of part C;
[0029] Figure 8 The elevator fire emergency control device provided in this application Figure 4 Schematic diagram of part C;
[0030] Fig. 9 The elevator fire emergency control device provided in this application Figure 4 Schematic diagram of part D in the middle;
[0031] Fig.10 The elevator fire emergency control device provided in this application Figure 4 Schematic diagram of part E in the middle.
[0032] Indicated in the figure:
[0033] 2. Emergency control box; 3. Car top control box; 4. Control cabinet; 5. Operation box; 501. Primary fire switch; 502. Secondary fire switch. DETAILED DESCRIPTION
[0034] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.
[0035] As described in the background technology, existing elevator fire control solutions have significant defects. Specifically, when firefighters are rescuing people on the rescue floor, if the floor door lock or safety circuit of the floor is burned due to the fire, resulting in a circuit break, the firefighters will not be able to return to the fire base station in a normal way. In this case, the firefighters may be trapped on the fire floor and face great safety risks.
[0036] In order to solve this technical problem, the utility model provides an elevator fire emergency control device.
[0037] Specifically, the elevator fire emergency control device specifically includes:
[0038] An emergency control box 2 installed on the top of the car, in which a relay is integrated for performing electrical control operations under specific conditions;
[0039] An operating box 5 is installed in the car, and is connected to the relay in the emergency control box 2. The operating box 5 is provided with a primary fire switch 501 and a secondary fire switch 502, and the secondary fire switch 502 is used for firefighters to operate.
[0040] The utility model provides an elevator fire emergency control device. The application adds an emergency control box 2 and a secondary fire switch 502 on the top of the car, and a relay is integrated in the emergency control box 2. When a firefighter takes the elevator for rescue and a problem occurs in the door lock or the safety circuit, the firefighter triggers the emergency control box 2 placed on the top of the car by dialing the secondary fire switch 502. The relay in the emergency control box 2 short-circuits the door lock circuit and the safety circuit through a dry contact and sounds an alarm to prompt the firefighter and the passengers. The elevator enters an emergency state. At this time, the power supply of the door machine will be cut off, and personnel can manually open / close the door. The elevator is allowed to run once when the door machine loses power and the safety circuit and the door lock circuit are short-circuited, so as to stay away from the fire floor. After the operation is completed, the secondary fire protection is automatically exited and returned to the firefighter operation, that is, the primary fire protection state. At this time, due to the abnormality of the door lock or the safety circuit, the elevator can no longer run, preventing the firefighter from taking the elevator.
[0041] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiments of the utility model will be clearly and completely described below in conjunction with the accompanying drawings.
[0042] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.
[0043] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.
[0044] For examples, please refer to Figure 1-Figure 10 , an elevator fire emergency control device, comprising:
[0045] An emergency control box 2 installed on the top of the car, in which a relay is integrated for performing electrical control operations under specific conditions;
[0046] The control box 5 installed in the car is connected to the relay in the emergency control box 2. The control box 5 is provided with a primary fire switch 501 and a secondary fire switch 502, and the secondary fire switch 502 is used for firefighters to operate. The present application adds an emergency control box 2 and a secondary fire switch 502 on the car top, and the emergency control box 2 is integrated with a relay. When the firefighters take the elevator for rescue and there is a problem with the door lock or the safety circuit, the firefighters can trigger the emergency control box 2 placed on the car top by dialing the secondary fire switch 502, and the relay in the emergency control box 2 is connected through the dry contact. The door lock circuit and the safety circuit are short-circuited and an alarm is sounded to alert firefighters and passengers. The elevator enters the emergency state. At this time, the door machine power supply will be cut off and personnel can manually open / close the door. The elevator is allowed to run once when the door machine loses power and the safety circuit and the door lock circuit are short-circuited, so as to stay away from the fire floor. After the operation is completed, the secondary fire protection is automatically exited and returned to the firefighter operation, that is, the primary fire protection state. At this time, due to abnormalities in the door lock or safety circuit, the elevator can no longer run, preventing firefighters from taking the elevator. If it is necessary to enter the secondary fire protection again, the fire switch 501 must be toggled again when the primary fire protection is effective.
[0047] Further, such as Figure 1 As shown, the emergency control box 2 is connected to the car top control box 3, and the car top control box 3 is connected to the control cabinet 4.
[0048] The control cabinet 4 has a detection circuit for detecting whether the elevator landing door is damaged due to fire.
[0049] Further, such as Figure 1 As shown, the car top control box 3 is installed on the top of the car. In case of fire, the car parts in the hoistway are not easily burned in a short time. Therefore, the emergency control box 2 and the car top control box 3 are both installed on the top of the car, so that when a fire occurs, the elevator car can perform short-term emergency operation.
[0050] Furthermore, when the secondary fire switch 502 is triggered, the relay in the emergency control box 2 short-circuits the door lock circuit and the safety circuit of the elevator through a dry contact method, and simultaneously cuts off the power supply of the elevator door machine, so as to realize manual operation of the elevator door in the event of an electrical failure. The dry contact method ensures the stability and reliability of the electrical connection. In an emergency, it can quickly short-circuit the door lock circuit and the safety circuit, and simultaneously cut off the power supply of the door machine, providing a safe evacuation channel for firefighters and passengers.
[0051] Further, such as Figure 2As shown, the emergency control box 2 is also connected to a buzzer to alert firefighters and passengers in the event of an electrical failure in the elevator door; the warning function of the elevator in an emergency is enhanced, the safety awareness of passengers is improved, and it is convenient for firefighters and passengers to understand the special operation mode of the front elevator. For ease of understanding, this application uses AA to represent the relay in the emergency control box 2, and uses BB to represent the buzzer, and Figure 2 Mark in
[0052] Furthermore, in the event that the door lock circuit and the safety circuit are short-circuited and the door machine loses power, the car performs an emergency run to take the firefighters and passengers away from the fire floor to a safe area;
[0053] Furthermore, after the emergency operation is completed, the emergency control box 2 is used to control the car to return to the firefighter operation state, and the detection circuit re-detects the door lock circuit, safety circuit and door in place status to ensure the safety of the elevator in subsequent use.
[0054] Furthermore, after the car completes the emergency operation and returns to the firefighter operation state, it automatically locks the re-triggering of the secondary fire switch 502 to prevent repeated emergency operation caused by unauthorized or misoperation. If it is necessary to enter the emergency state again, it must be done after passing specific procedures or authority verification, under the premise that the elevator is in a normal firefighter operation state and meets specific safety conditions.
[0055] Furthermore, the car top control box 3 is also used to cut off the internal and external elevator call responses of the car when the fire switch 501 is triggered, so as to prevent the operation of the car from being affected by the elevator call operation when a fire occurs.
[0056] Conventional firefighting operation: When the elevator receives the fire return signal, all internal and external calls are cancelled, the buzzer is output and the light curtain is invalid. After the elevator closes the door and runs to the fire station, the car door opens and the fire buzzer is cut off; the firefighter performs conventional firefighter operation through the fire switch 501. When the fire switch 501 is triggered, the door is closed by internal call or door closing button. If the door is not completely closed, the button is released and the elevator door will open automatically. When the elevator reaches the floor required by the firefighter, the door will not open automatically and the door opening button must be pressed to open the door. However, if the door is not completely opened, the button is released and the elevator door will close automatically.
[0057] Emergency fire operation: When the primary fire switch 501 (firefighter operation JP24 trigger signal) and the secondary fire switch 502 (emergency operation JP22 trigger signal) are triggered, the relays XF2 and XF3 are activated, the car door machine loses power, the emergency buzzer outputs a buzzer prompt sound, the car door and hall door are in a fully open state, and the elevator can still start and run once; when JP24 and JP22 simultaneously input signals, the main board Y6 / M6 outputs, and the 24VDC power supply is provided to the relay XF2 and XF3 coils. The relay is energized, and the hall car door lock and the safety return circuit are short-circuited. At this time, the door can be opened. If the door has been burned and deformed and cannot be closed, it can be operated once. When the elevator runs until it stops, Y6 / M6 stops outputting. At this time, the relay coil loses power and the relay has no output. If the door is damaged, the door lock circuit is disconnected and the elevator can no longer perform the firefighter operation. You can avoid taking the elevator again. If the elevator needs to be operated again in an emergency, you need to turn on the secondary fire switch 502 again to trigger this emergency signal to enter the emergency control state.
[0058] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0059] Obviously, the embodiments described above are only some embodiments of the utility model, rather than all embodiments. The preferred embodiments of the utility model are given in the accompanying drawings, but they do not limit the patent scope of the utility model. The utility model can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the utility model more thorough and comprehensive. Although the utility model is described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific implementation methods, or to replace some of the technical features therein with equivalents. Any equivalent structure made using the contents of the utility model specification and the accompanying drawings, directly or indirectly used in other related technical fields, is also within the scope of patent protection of the utility model.
Claims
1. An elevator fire emergency control device, characterized in that: include: An emergency control box (2) installed on the top of the car, wherein a relay is integrated in the emergency control box (2) for performing electrical control operations under specific conditions; An operating box (5) is installed in the car, the operating box (5) is connected to a relay in an emergency control box (2), and a primary fire switch (501) and a secondary fire switch (502) are provided on the operating box (5), and the secondary fire switch (502) is used for operation by firefighters.
2. An elevator fire emergency control device according to claim 1, characterized in that: The emergency control box (2) is connected to a car top control box (3), and the car top control box (3) is connected to a control cabinet (4).
3. An elevator fire emergency control device according to claim 2, characterized in that: The control cabinet (4) has a detection circuit for detecting whether the elevator landing door is damaged due to fire.
4. An elevator fire emergency control device according to claim 3, characterized in that: The car top control box (3) is installed on the top of the car.
5. An elevator fire emergency control device according to claim 4, characterized in that: When the secondary fire switch (502) is triggered, the relay in the emergency control box (2) short-circuits the door lock circuit and the safety circuit of the elevator through a dry contact method, and simultaneously cuts off the power supply of the elevator door machine, so as to realize manual operation of the elevator door in the event of an electrical failure.
6. An elevator fire emergency control device according to claim 5, characterized in that: The emergency control box (2) is also connected to a buzzer to alert firefighters and passengers in the event of an electrical failure of the elevator door.
7. An elevator fire emergency control device according to claim 6, characterized in that: When the door lock circuit and safety circuit are short-circuited and the door machine loses power, the car performs an emergency run to take firefighters and passengers away from the fire floor to a safe area.
8. An elevator fire emergency control device according to claim 7, characterized in that: After the emergency operation is completed, the emergency control box (2) is used to control the car to return to the firefighter operation state, and the detection circuit re-detects the door lock circuit, the safety circuit and the door in place state.
9. An elevator fire emergency control device according to claim 8, characterized in that: After the car completes the emergency operation and returns to the firefighter operation state, the re-triggering of the secondary fire switch (502) is automatically locked.
10. An elevator fire emergency control device according to claim 9, characterized in that: The car top control box (3) is also used to cut off the internal and external elevator call responses of the car when the primary fire switch (501) is triggered.