A carbon monoxide alarm monitoring bracelet suitable for coke oven working environment
By designing a carbon monoxide alarm monitoring wristband suitable for coke oven operating environments, the problems of existing alarms being easily forgotten and lacking time display have been solved. This wristband enables real-time monitoring and portable reminders, improving the safety and portability for staff.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANJING IRON & STEEL CO LTD
- Filing Date
- 2025-06-27
- Publication Date
- 2026-06-09
AI Technical Summary
Existing carbon monoxide alarms in coke oven operating environments are bulky, easily forgotten, and lack time display functionality, posing a threat to worker safety during emergency repairs.
A carbon monoxide alarm monitoring wristband suitable for coke oven operating environments has been designed. It includes a wristband body, wristband, protective shell, limiting mechanism, main control chip, power module, display module, vibration module, carbon monoxide monitoring module and signal processing module. It has real-time monitoring, carbon monoxide concentration display and vibration reminder functions, and is easy to carry.
It enables real-time monitoring and alerts for carbon monoxide in the coke oven working environment, improving the safety of workers, preventing accidents, and is easy to carry and use, reducing the risk of loss.
Smart Images

Figure CN224330490U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of coke oven environmental monitoring equipment, and in particular relates to a carbon monoxide alarm monitoring wristband suitable for coke oven operating environment. Background Technology
[0002] Coke ovens require extremely high temperatures during production to dry distill coal into coke. The surface temperature of the oven body is very high, especially in the top area, where the temperature can reach 60°C or even higher. Moreover, various toxic and harmful gases, such as polycyclic aromatic hydrocarbons, benzene, toluene, xylene, and carbon monoxide, are released during the coal charging, coke discharging, coke quenching, and gas transportation processes. Therefore, in order to ensure the safety of workers, it is necessary to set up corresponding monitoring methods in the working environment. However, since the working environment is usually large, instead of setting up fixed monitoring methods, more companies choose to have workers wear corresponding monitoring devices.
[0003] Currently, most portable alarms used in coke ovens are clip-on carbon monoxide alarms, which are quite bulky. After work, workers will remove them from their bodies and place them somewhere. In the event of an emergency repair, they are very easy to forget to bring them back. Moreover, since they do not have a time display function, it is difficult to calculate the working time in the gas area. In the event of an emergency repair, workers should limit their activity time within the accident area. Once the safe activity time is exceeded, there is a great possibility of threatening the safety of the workers. Therefore, the lack of a time display also poses a certain risk to the safety of the workers.
[0004] To address this issue, we propose a carbon monoxide alarm monitoring wristband suitable for coke oven operating environments. Utility Model Content
[0005] The purpose of this invention is to solve the problems in the prior art by proposing a carbon monoxide alarm monitoring wristband suitable for coke oven operating environments.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A carbon monoxide alarm monitoring wristband suitable for coke oven operating environments includes a wristband body and a wristband. The wristband body is movably mounted on the wristband, and a protective shell is provided on the wristband. The wristband body is housed within the protective shell, and a limiting mechanism is provided between the protective shell and the wristband body. A reset button is provided on the side wall of the wristband body. A processing system is provided in the wristband body, including a main control chip, a power module, a display module, and a vibration module. The display module and the vibration module are electrically connected to the main control chip, and the reset button is also electrically connected to the main control chip. The power module supplies power to the main control chip. The wristband body also includes a carbon monoxide monitoring module and a signal processing module, which are also electrically connected to the main control chip.
[0008] Preferably, the main control chip is model DA14580.
[0009] Preferably, the carbon monoxide monitoring module is model alphasense-CO-B4.
[0010] Preferably, the display module is equipped with an OLED screen, and the controller of the OLED screen is an SSD1306.
[0011] Preferably, the vibration module is a flat button-type vibration motor.
[0012] Preferably, the power module is powered by a lithium battery.
[0013] Preferably, the protective shell is divided into a fixed part and a movable part. The side wall of the fixed part is fixedly connected to the wristband. The side wall of the movable part is provided with an extension rod. The side wall of the fixed part is provided with a sliding groove. The extension rod slides in the sliding groove. The side wall of the movable part is provided with a through hole. The reset button passes through the through hole.
[0014] Preferably, the limiting mechanism includes a rotating ring, a rotating buckle plate, and a fixed ring. The fixed ring is fixedly disposed on the side wall of the reset button. The fixed ring is a circular ring with a notch. The rotating ring is rotatably connected to the inner wall of the perforation. The rotating buckle plate is fixedly connected to the inner wall of the rotating ring. The rotating buckle plate is L-shaped. The long side of the rotating buckle plate is fixedly connected to the side wall of the rotating ring. The short side of the rotating buckle plate abuts against the side wall of the fixed ring. The dimension of the short side of the rotating buckle plate is smaller than the dimension of the notch in the fixed ring.
[0015] In summary, the technical effects and advantages of this utility model are as follows:
[0016] The monitoring wristband in this application can first ensure the safety of workers by monitoring the carbon monoxide concentration in the air while workers are working, thus preventing accidents. Secondly, the monitoring wristband can move with the workers, thereby monitoring key values at various locations within the work area in real time, preventing environmental problems. Finally, the monitoring wristband is highly portable, with a shape that makes it easy to carry and less uncomfortable to wear, so it is less likely to be actively removed after being worn, making it less likely to be lost. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the external structure of this utility model;
[0018] Figure 2 This is a structural block diagram of the processing system in this utility model;
[0019] Figure 3 This is a flowchart illustrating the workflow of this utility model.
[0020] Figure 4 This is a schematic diagram of the structure of the fixing part and the bracelet body in this utility model;
[0021] Figure 5 This is a schematic diagram of the movable part in this utility model.
[0022] In the diagram: 1. Bracelet body; 2. Wristband; 3. Reset button; 4. Main control chip; 5. Power module; 6. Display module; 7. Vibration module; 8. Carbon monoxide monitoring module; 9. Signal processing module; 10. Fixing part; 11. Moving part; 12. Extension rod; 13. Sliding groove; 14. Perforation; 15. Rotating ring; 16. Rotating buckle plate; 17. Fixing ring. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0024] like Figures 1-5 As shown, a carbon monoxide alarm monitoring wristband suitable for coke oven working environment includes a wristband body 1 and a wristband 2. The wristband body 1 is movably mounted on the wristband 2 and can be removed from the wristband 2 for subsequent maintenance or cleaning. The wristband 2 in this application has a shape similar to that of a wristband 2 in a watch or wristband. A reset button 3 is provided on the side wall of the wristband body 1, and the user can reset the entire processing system by pressing the reset button 3.
[0025] The wristband 2 is provided with a protective shell, and the bracelet body 1 is placed in the protective shell. The protective shell is divided into a fixed part 10 and a movable part 11. The side wall of the fixed part 10 is fixedly connected to the wristband 2. Figure 4 and Figure 5 As can be seen, the fixed part 10 is a semi-enclosed frame shape, and the movable part 11 and the fixed part 10 can be combined into a complete shell. The side wall of the movable part 11 is provided with an extension rod 12, and the side wall of the fixed part 10 is provided with a sliding groove 13. The extension rod 12 slides in the sliding groove 13. A limiting component can also be provided between the extension rod 12 and the sliding groove 13 to prevent the extension rod 12 from sliding out of the sliding groove 13 completely. The side wall of the movable part 11 is provided with a through hole 14, and the reset button 3 passes through the through hole 14.
[0026] A limiting mechanism is provided between the protective shell and the bracelet body 1. The limiting mechanism includes a rotating ring 15, a rotating buckle 16, and a fixing ring 17. The fixing ring 17 is fixedly installed on the side wall of the reset button 3. The fixing ring 17 is a circular ring with a notch. The rotating ring 15 is rotatably connected to the inner wall of the through hole 14. The rotatable connection here is the same as the rotatable relationship between the outer ring and the inner ring of a bearing. Therefore, the rotating ring 15 will not detach from the through hole 14. A torsion spring can also be provided between the rotating ring 15 and the through hole 14 to ensure that... After the force on the rotating ring 15 is removed, the rotating ring 15 can return to its original position. The rotating buckle 16 is fixedly connected to the inner wall of the rotating ring 15. The rotating buckle 16 is "L" shaped. The long side of the rotating buckle 16 is fixedly connected to the side wall of the rotating ring 15, and the short side wall of the rotating buckle 16 abuts against the side wall of the fixed ring 17. The size of the short side of the rotating buckle 16 is smaller than the size of the notch of the fixed ring 17. Under normal conditions, the rotating buckle 16 will abut against the side wall of the fixed ring 17, thereby restricting the movable part 11 and the reset button 3 together.
[0027] The main body 1 of the wristband contains a processing system, which includes a main control chip 4, a power module 5, a display module 6, and a vibration module 7. The display module 6 and the vibration module 7 are electrically connected to the main control chip 4. The vibration module 7 uses a flat button-type vibration motor, which is mainly used to make the wristband vibrate when the carbon monoxide concentration exceeds a set threshold to remind the user. The reset button 3 is also electrically connected to the main control chip 4. The main control chip 4 is model DA14580. The main control chip 4 is a Bluetooth smart system-on-a-chip. This model has the characteristics of low power consumption, small size, and low system cost. Moreover, even if the power is exhausted, the data in the chip is still retained.
[0028] The display module 6 is equipped with an OLED screen. The controller for the OLED screen is an SSD1306. The OLED screen has the ability to emit light on its own and also has advantages such as high contrast, thinness, wide viewing angle, fast response speed, applicability to flexible panels, wide operating temperature range, and simpler construction and manufacturing process. The OLED screen is driven by the SSD1306, which is a widely used small OLED display driver chip.
[0029] The power module 5 supplies power to the main control chip 4 and the lithium battery. The high energy density of the lithium battery makes it the preferred power source. The wristband body 1 also has a carbon monoxide monitoring module 8 and a signal processing module 9. The carbon monoxide monitoring module 8 and the signal processing module 9 are also electrically connected to the main control chip 4. The carbon monoxide monitoring module 8 is model alphasense-CO-B4. Its advantages are high sensitivity, fast response, good stability, long life and simple driving circuit.
[0030] The working principle is as follows: After the wristband is powered on, the carbon monoxide sensor module keeps working continuously to detect whether there is carbon monoxide in the surroundings. When the carbon monoxide sensor module detects carbon monoxide in the surroundings, it transmits the signal to the signal processing module 9 and starts timing. It continues to collect data until the reset button 3 is pressed. The signal processing module 9 converts the signal from digital to analog and then transmits it to the main control chip 4 to obtain the carbon monoxide concentration.
[0031] The main control chip 4 determines whether the threshold is exceeded based on the pre-set threshold. If it is exceeded, the carbon monoxide concentration value and exposure time are sent to the display module 6 for display, and the vibration module 7 is activated to provide a strong vibration warning.
[0032] If the carbon monoxide concentration value does not exceed the set threshold, the main control chip 4 will also transmit the carbon monoxide concentration value and exposure time to the display module 6 for display, and activate the vibration module 7 to provide a weak vibration reminder.
[0033] Then rotate the rotating ring 15 so that the rotating buckle 16 moves to the notch position of the fixed ring 17. After pressing the reset button 3, the vibration stops, the timer is cleared, the display screen is cleared, and the system is initialized.
[0034] If you want to remove the bracelet body 1 from the protective case, simply rotate the rotating ring 15. The rotating buckle 16 located on the side wall of the rotating ring 15 will rotate accordingly until the rotating buckle 16 moves to the notch position of the fixed ring 17. Then the user can pull the movable part 11 outward along the sliding groove 13 and remove the bracelet body 1.
[0035] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A carbon monoxide alarm monitoring wristband suitable for coke oven operating environments, comprising a wristband body (1) and a wristband (2), characterized in that, The wristband body (1) is movably mounted on the wristband (2). A protective shell is provided on the wristband (2). The wristband body is placed in the protective shell. A limiting mechanism is provided between the protective shell and the wristband body. A reset button (3) is provided on the side wall of the wristband body (1). A processing system is provided in the wristband body (1). The processing system includes a main control chip (4), a power module (5), a display module (6), and a vibration module (7). The display module (6) and the vibration module (7) are electrically connected to the main control chip (4) respectively. The reset button (3) is also electrically connected to the main control chip (4). The power module (5) supplies power to the main control chip (4). A carbon monoxide monitoring module (8) and a signal processing module (9) are also provided in the wristband body (1). The carbon monoxide monitoring module (8) and the signal processing module (9) are also electrically connected to the main control chip (4).
2. The carbon monoxide alarm monitoring wristband suitable for coke oven operating environments according to claim 1, characterized in that, The main control chip (4) is model DA14580.
3. A carbon monoxide alarm monitoring wristband suitable for coke oven operating environments according to claim 1, characterized in that, The carbon monoxide monitoring module (8) is model alphasense-CO-B4.
4. A carbon monoxide alarm monitoring wristband suitable for coke oven operating environments according to claim 1, characterized in that, The display module (6) is equipped with an OLED screen, and the controller of the OLED screen is an SSD1306.
5. A carbon monoxide alarm monitoring wristband suitable for coke oven operating environments according to claim 1, characterized in that, The vibration module (7) adopts a flat button-type vibration motor.
6. A carbon monoxide alarm monitoring wristband suitable for coke oven operating environments according to claim 1, characterized in that, The power module (5) is powered by a lithium battery.
7. A carbon monoxide alarm monitoring wristband suitable for coke oven operating environments according to claim 1, characterized in that, The protective shell is divided into a fixed part (10) and a movable part (11). The side wall of the fixed part (10) is fixedly connected to the wristband (2). The side wall of the movable part (11) is provided with an extension rod (12). The side wall of the fixed part (10) is provided with a sliding groove (13). The extension rod (12) slides in the sliding groove (13). The side wall of the movable part (11) is provided with a through hole (14). The reset button (3) passes through the through hole (14).
8. A carbon monoxide alarm monitoring wristband suitable for coke oven operating environments according to claim 7, characterized in that, The limiting mechanism includes a rotating ring (15), a rotating buckle (16), and a fixed ring (17). The fixed ring (17) is fixedly installed on the side wall of the reset button (3). The fixed ring (17) is a circular ring with a notch. The rotating ring (15) is rotatably connected to the inner wall of the perforation (14). The rotating buckle (16) is fixedly connected to the inner wall of the rotating ring (15). The rotating buckle (16) is "L" shaped. The long side of the rotating buckle (16) is fixedly connected to the side wall of the rotating ring (15). The short side of the rotating buckle (16) abuts against the side wall of the fixed ring (17). The short side dimension of the rotating buckle (16) is smaller than the notch dimension of the fixed ring (17).