Remote access alarm device applied to dangerous area of cold rolling mill
By installing wireless signal transmitters and stroke switches at the entrances and exits of the dangerous areas of the cold rolling mill, the entry and exit behavior is monitored in real time and the alarm signal is feedback to the main operating room, the safety hazards of personnel entering the dangerous areas in the cold rolling mill are solved, and the safety of the cold rolling mill is significantly improved.
Patent Information
- Application Number
- CN202420590017.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-26
- Publication Date
- 2025-03-28
- Estimated Expiration
- 2034-03-26
AI Technical Summary
When the cold rolling mill is working, the main operator cannot intuitively know whether someone enters the dangerous area underground, and there is a safety hazard of someone entering the high-risk area underground during the rolling mill production process.
A remote alarm device for entry and exit is designed. By installing doors and stroke switches at the entrances and exits of the cold rolling mill hazardous area, and connecting them to the wireless signal transmitter, the entry and exit behavior is monitored in real time and the alarm signal is feedbacked to the main operating room in a timely manner.
It effectively improves the inherent safety of cold rolling mills, and avoids safety hazards caused by personnel entering dangerous areas through real-time monitoring and alarms.
Smart Images
Figure CN222690218U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of safe production, in particular to an in-and-out remote alarm device applied to a dangerous area of a cold rolling mill. Background Art
[0002] When the cold rolling mill is working, the main operator starts the machine in the main operation room in the control area. He cannot intuitively know whether anyone has entered the underground dangerous area (such as the basement). There is a safety hazard that someone may enter the underground high-risk area during the production of the rolling mill. In order to eliminate this safety hazard, this case adds a remote alarm device to monitor the entry and exit of the underground dangerous area of the rolling mill in real time, and feeds back the information to the main operation room for alarm, effectively improving the inherent safety of the rolling mill. Summary of the invention
[0003] The utility model proposes a remote alarm device for entering and exiting the dangerous area of a cold rolling mill. The remote alarm device can be added to monitor the entry and exit behavior of the underground dangerous area of the rolling mill in real time, and the information can be fed back to the main operation room of the main control area of the cold rolling mill to alarm, thereby effectively improving the intrinsic safety of the rolling mill.
[0004] The utility model adopts the following technical solutions.
[0005] A remote alarm device for entering and exiting a dangerous area of a cold rolling mill, the alarm device comprising a door arranged at the entrance and exit of the dangerous area of the cold rolling mill and a travel switch adjacent to the door, and also comprising a wireless signal transmitter connected to the travel switch; the travel switch is arranged at the power supply circuit of the wireless signal transmitter; the door is closed by default, and the power supply circuit of the wireless signal transmitter is disconnected by default; when the door is opened, the operating head of the travel switch is triggered, so that the travel switch turns on the power supply circuit of the wireless signal transmitter, and the wireless signal transmitter immediately transmits an alarm signal after being energized.
[0006] The travel switch is a telescopic travel switch. When the door is in a closed state, the operating head of the telescopic travel switch is pressed down by the door, so that the power supply circuit of the wireless signal transmitter is disconnected by the travel switch.
[0007] A receiver for receiving alarm signals is provided at the main control area of the cold rolling mill.
[0008] The receiver is connected to the signal alarm light. When the receiver receives the alarm signal from the wireless signal transmitter, the receiver starts the signal alarm light to alarm in the form of light.
[0009] The cold rolling mill dangerous area is located in the underground space below the cold rolling mill.
[0010] The receiver is connected to a receiving antenna, which extends to the side of the hazardous area of the cold rolling mill.
[0011] The wireless signal transmitter adopts a low-frequency radio signal transmitter to enhance the propagation distance and penetration ability of the radio signal.
[0012] The utility model can monitor the entry and exit behavior of the underground dangerous area of the rolling mill in real time by adding a remote alarm device, and feed back the information to the main operation room for alarm, thereby effectively improving the intrinsic safety of the rolling mill. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments:
[0014] Attached Figure 1 It is a schematic diagram of the utility model;
[0015] In the figure: 1-dangerous area; 2-main control area; 3-door; 4-travel switch; 5-wireless signal generator; 6-receiving antenna; 7-receiver; 8-signal alarm light; 9-cold rolling mill. DETAILED DESCRIPTION
[0016] like Figure 1 As shown, a remote alarm device for entering and exiting a dangerous area of a cold rolling mill is used. The alarm device includes a door 3 arranged at the entrance and exit of a dangerous area 1 of the cold rolling mill 9 and a travel switch 4 adjacent to the door, and also includes a wireless signal transmitter 5 connected to the travel switch; the travel switch is arranged at the power supply circuit of the wireless signal transmitter; the door is closed by default, and the power supply circuit of the wireless signal transmitter is disconnected by default; when the door is opened, the operating head of the travel switch is triggered, so that the travel switch turns on the power supply circuit of the wireless signal transmitter, and the wireless signal transmitter immediately transmits an alarm signal after being energized.
[0017] The travel switch is a telescopic travel switch. When the door is in a closed state, the operating head of the telescopic travel switch is pressed down by the door, so that the power supply circuit of the wireless signal transmitter is disconnected by the travel switch.
[0018] A receiver 7 for receiving alarm signals is provided in the main control area 2 of the cold rolling mill.
[0019] The receiver is connected to the signal alarm light 8. When the receiver receives the alarm signal from the wireless signal transmitter, the receiver starts the signal alarm light to give an alarm in the form of light.
[0020] The cold rolling mill dangerous area is located in the underground space below the cold rolling mill.
[0021] The receiver is connected to a receiving antenna 6 which extends to the danger zone of the cold rolling mill.
[0022] The wireless signal transmitter adopts a low-frequency radio signal transmitter to enhance the propagation distance and penetration ability of the radio signal.
[0023] The utility model can monitor the entry and exit behavior of the underground dangerous area of the rolling mill in real time by adding a remote alarm device, and feed back the information to the main operation room for alarm, thereby effectively improving the intrinsic safety of the rolling mill.
[0024] In this example, the door is an electric door, and the wireless signal transmitter obtains power from the electric door.
Claims
1. A remote alarm device for entering and exiting a dangerous area of a cold rolling mill, characterized in that: The alarm device includes a door arranged at the entrance and exit of the dangerous area of the cold rolling mill and a travel switch adjacent to the door, and also includes a wireless signal transmitter connected to the travel switch; the travel switch is arranged at the power supply circuit of the wireless signal transmitter; the door is closed by default, and the power supply circuit of the wireless signal transmitter is disconnected by default; when the door is opened, the operating head of the travel switch is triggered, and the travel switch turns on the power supply circuit of the wireless signal transmitter, so that the wireless signal transmitter is powered and transmits an alarm signal.
2. According to claim 1, a remote alarm device for entering and exiting a dangerous area of a cold rolling mill is characterized in that: The travel switch is a telescopic travel switch. When the door is in a closed state, the operating head of the telescopic travel switch is pressed down by the door, so that the power supply circuit of the wireless signal transmitter is disconnected by the travel switch.
3. The remote alarm device for entering and exiting a dangerous area of a cold rolling mill according to claim 1, characterized in that: A receiver for receiving alarm signals is provided at the main control area of the cold rolling mill.
4. The remote alarm device for entering and exiting a dangerous area of a cold rolling mill according to claim 3, characterized in that: The receiver is connected to the signal alarm light. When the receiver receives the alarm signal from the wireless signal transmitter, the receiver starts the signal alarm light to alarm in the form of light.
5. The remote alarm device for entering and exiting a dangerous area of a cold rolling mill according to claim 3, characterized in that: The cold rolling mill dangerous area is located in the underground space below the cold rolling mill.
6. The remote alarm device for entering and exiting a dangerous area of a cold rolling mill according to claim 5, characterized in that: The receiver is connected to a receiving antenna, which extends to the side of the hazardous area of the cold rolling mill.
7. The remote alarm device for entering and exiting a dangerous area of a cold rolling mill according to claim 1, characterized in that: The wireless signal transmitter adopts a low-frequency radio signal transmitter to enhance the propagation distance and penetration ability of the radio signal.