Harmful gas automatic monitoring alarm type compressed oxygen self-rescuer
By employing a fixing design with magnets and metal collars on the compressed oxygen self-rescue device, combined with automatic monitoring and alarm functions, the problems of device swaying and lack of monitoring are solved, achieving stable carrying and timely alarm effects.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 李林
- Filing Date
- 2025-02-05
- Publication Date
- 2026-04-17
AI Technical Summary
Existing compressed oxygen self-rescue devices sway behind miners, affecting mining operations, and lack automatic monitoring and alarm functions.
A self-rescue device for compressed oxygen with automatic monitoring and alarm of harmful gases was designed. It is fixed to the waist with a magnet and a metal collar, and combined with a microcontroller, sensor and buzzer to achieve automatic monitoring and stable carrying.
The device achieves stable fixation around the waist, automatically monitors harmful gases, provides timely alarms, reduces the impact of shaking, and improves ease of use and safety.
Smart Images

Figure CN224126433U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of downhole self-rescue device technology, and in particular to a compressed oxygen self-rescue device with automatic monitoring and alarm for harmful gases. Background Technology
[0002] Compressed oxygen self-rescue devices are portable respiratory protection devices carried by miners to prevent poisoning from harmful gases or suffocation due to lack of oxygen in the event of fire, gas explosion, coal dust explosion, or coal and gas outburst underground. When a sudden major disaster occurs in a coal mine, miners who are still alive can escape danger, leave the disaster area, and save their lives by wearing this type of self-rescue device in time. Therefore, miners going down the mine need to carry this self-rescue device at all times. Most existing self-rescue devices are diagonal and are carried on the back of the miner. However, self-rescue devices carried on the back with a shoulder strap are prone to swaying back and forth, which affects the miners' mining operations underground.
[0003] A search revealed a Chinese patent application with patent number CN202320092589.7, which discloses a multifunctional self-rescue device. The device includes a main box with a top cover. The main box is divided into an emergency compartment and a tank compartment by a partition. However, the above-mentioned technical solution requires workers to carry the self-rescue device diagonally on their backs. When workers are working, the self-rescue device tends to swing back and forth, which can affect their work underground. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing an automatic hazardous gas monitoring and alarm type compressed oxygen self-rescue device.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] An automatic monitoring and alarm type compressed oxygen self-rescue device for hazardous gases includes a compressed oxygen self-rescue device body and a belt. A fixing plate is fixed to one outer wall of the compressed oxygen self-rescue device body, and a set of magnets is fixed to the bottom outer wall of the fixing plate. A connecting frame is fixed to the outer wall of the belt, and a belt buckle is provided at one end of the belt. A set of metal collars is fixed to the top outer wall of the belt buckle and the connecting frame, respectively. The magnets are inserted into the inner wall of the metal collars.
[0007] As a further improvement of this utility model: a control box is fixed to the outer wall of the bottom of the compressed oxygen self-rescue device body, and a microcontroller, a temperature sensor, a miniature methane sensor and a carbon monoxide sensor are provided on the inner wall of the control box.
[0008] As a further improvement of this utility model, a filter screen is provided on one side of the outer wall of the control box.
[0009] As a further improvement of this utility model: a buzzer is provided on the bottom outer wall of the control box, and the buzzer, temperature sensor, miniature methane sensor and carbon monoxide sensor are electrically connected to the single-chip microcomputer respectively.
[0010] As a further improvement of this utility model: a battery block is fixed to the bottom outer wall of the compressed oxygen self-rescue device body, and a charging interface is provided on the outer wall of the battery block.
[0011] As a further improvement of this utility model, an elastic pad is fixed to the outer wall of the connecting frame.
[0012] As a further embodiment of this utility model: a set of T-shaped sliders are fixed on one side of the outer wall of the connecting frame, a fixed frame is fixed on the bottom outer wall of the fixed plate, a set of rectangular through grooves are opened on one side of the outer wall of the fixed frame, a slot is opened on the bottom outer wall of the rectangular through grooves, the T-shaped sliders are inserted into the inner wall of the slots, and the T-shaped sliders are slidably connected to the inner wall of the rectangular through grooves.
[0013] As a further improvement of this utility model: multiple reinforcing plates are fixed to the top outer wall of the fixing plate, and one side of the outer wall of the reinforcing plate is fixed to one side of the outer wall of the compressed oxygen self-rescue device body.
[0014] The beneficial effects of this utility model are as follows:
[0015] 1. The worker first fastens the belt around their waist using the belt buckle. At this point, the connecting frame fixed to the outer wall of the belt is placed against the worker's hip bone. Then, the compressed oxygen self-rescue device is picked up, and a set of magnets on the bottom of the fixing plate on one side of the device is inserted into the corresponding metal ring at the top of the connecting frame. The magnets inserted into the metal ring can be attracted to the inner wall of the metal ring by their own magnetic force, thereby supporting and fixing the compressed oxygen self-rescue device placed on one side of the connecting frame. This allows the compressed oxygen self-rescue device to fit snugly against the worker's hip side, without affecting the worker's ability to work from the front, and preventing the compressed oxygen self-rescue device from swinging back and forth while the worker is working.
[0016] 2. When the compressed oxygen self-rescue device needs to be used, the worker can directly reach in and pull the entire device off from the top of the connecting frame. Then, the device is inserted into the belt buckle located directly in front of the worker's abdomen using the magnet and metal collar. This allows the worker to easily open and use the device without interfering with their work, making it convenient to carry and use.
[0017] 3. The T-shaped slider inserted into the rectangular through slot and the inner wall of the fixed frame, together with the magnet and metal collar, supports and fixes the compressed oxygen self-rescue device body connected to one side of the connecting frame, thereby improving the stability of the compressed oxygen self-rescue device body located on one side of the connecting frame when carried by the staff, and preventing the compressed oxygen self-rescue device body from being thrown off from behind the waist when the staff is working. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the main structure of the automatic monitoring and alarm type compressed oxygen self-rescue device for harmful gases proposed in this utility model;
[0019] Figure 2 This is a side view of the automatic monitoring and alarm type compressed oxygen self-rescue device for harmful gases proposed in this utility model.
[0020] Figure 3 This is a schematic diagram of the connecting frame structure of the automatic hazardous gas monitoring and alarm type compressed oxygen self-rescue device proposed in this utility model.
[0021] Figure 4 This is a schematic diagram of the fixed frame structure of the automatic hazardous gas monitoring and alarm type compressed oxygen self-rescue device proposed in this utility model;
[0022] Figure 5 This is a circuit diagram of the automatic monitoring and alarm type compressed oxygen self-rescue device for harmful gases proposed in this utility model.
[0023] In the diagram: 1-Compressed oxygen self-rescue device body, 2-Belt, 3-Battery block, 4-Buzzer, 5-Belt buckle, 6-Filter screen, 7-Control box, 8-Charging interface, 9-Fixing frame, 10-Metal collar, 11-Fixing plate, 12-Elastic pad, 13-Rectangular through groove, 14-Slot, 15-T-shaped slider, 16-Connecting frame, 17-Reinforcing plate, 18-Magnetic block. Detailed Implementation
[0024] The technical solution of this patent will be further described in detail below with reference to specific embodiments.
[0025] The embodiments of this patent are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this patent, and should not be construed as limiting this patent.
[0026] Example 1
[0027] Automatic hazardous gas monitoring and alarm type compressed oxygen self-rescue device, such as Figure 1-5As shown, the device includes a compressed oxygen self-rescue device body 1 and a belt 2. A fixing plate 11 is fixed to one side of the outer wall of the compressed oxygen self-rescue device body 1. A set of magnet blocks 18 are fixed to the bottom outer wall of the fixing plate 11. A connecting frame 16 is fixed to the outer wall of the belt 2. A belt buckle 5 is provided at one end of the belt 2. A set of metal collars 10 are fixed to the top outer walls of the belt buckle 5 and the connecting frame 16, respectively. The magnet blocks 18 are inserted into the inner wall of the metal collars 10.
[0028] The worker first fastens the belt 2 around their waist using the belt buckle 5. At this time, the connecting frame 16 fixed to the outer wall of the belt 2 is placed against the hip bone of the worker's buttocks. Then, the compressed oxygen self-rescue device body 1 is picked up, and a set of magnets 18 at the bottom of the fixing plate 11 on one side of the compressed oxygen self-rescue device body 1 is inserted into the corresponding metal collar 10 at the top of the connecting frame 16. The magnets 18 inserted into the metal collar 10 can be attracted to the inner wall of the metal collar 10 by their own magnetic force, thereby supporting and fixing the compressed oxygen self-rescue device body 1 placed on one side of the connecting frame 16. This allows the compressed oxygen self-rescue device body 1 to be placed close to the worker's buttocks, preventing the compressed oxygen self-rescue device body 1 from swinging back and forth while the worker is working, without affecting the worker's frontal work.
[0029] When the compressed oxygen self-rescue device body 1 is needed, the staff can directly reach out and pull the entire compressed oxygen self-rescue device body 1 from the top of the connecting frame 16. Then, the compressed oxygen self-rescue device body 1 is inserted into the belt buckle 5 located in front of the staff's abdomen through the magnet block 18 and the metal collar 10. This allows the staff to easily open the compressed oxygen self-rescue device body 1 for use. It allows the compressed oxygen self-rescue device body 1 to be carried and used conveniently without affecting the staff's work.
[0030] like Figure 1 As shown, a control box 7 is fixed to the bottom outer wall of the compressed oxygen self-rescue device body 1, and a microcontroller, a temperature sensor, a miniature methane sensor and a carbon monoxide sensor are provided on the inner wall of the control box 7.
[0031] A filter screen 6 is provided on one outer wall of the control box 7;
[0032] A buzzer 4 is provided on the bottom outer wall of the control box 7. The buzzer 4, temperature sensor, miniature methane sensor and carbon monoxide sensor are electrically connected to the single-chip microcomputer respectively.
[0033] A battery block 3 is fixed to the bottom outer wall of the compressed oxygen self-rescue device body 1, and a charging interface 8 is provided on the outer wall of the battery block 3.
[0034] The temperature sensor, miniature methane sensor, and carbon monoxide sensor located inside the control box 7 can monitor the temperature and concentration of harmful gases near the staff in real time. The filter 6 can filter the gas entering the control box 7 to prevent a large amount of surrounding dust from entering the control box 7. When the temperature and concentration of harmful gases in the air exceed the standard, the microcontroller will control the buzzer 4 to sound, thereby reminding the staff to use the compressed oxygen self-rescue device 1 for self-rescue and timely avoidance of danger.
[0035] like Figure 2-3 As shown, an elastic pad 12 is fixed to the outer wall of the connecting frame 16; the elastic pad 12 can buffer the contact surface between the connecting frame 16 and the worker.
[0036] Working principle: The worker first fastens the belt 2 around the waist with the belt buckle 5. At this time, the connecting frame 16 fixed to the outer wall of the belt 2 is placed against the hip bone of the worker. Then, the compressed oxygen self-rescue device body 1 is picked up, and a set of magnets 18 at the bottom of the fixing plate 11 on one side of the compressed oxygen self-rescue device body 1 is inserted into the corresponding metal collar 10 at the top of the connecting frame 16. The magnets 18 inserted into the metal collar 10 can be attracted to the inner wall of the metal collar 10 by their own magnetic force, thereby supporting and fixing the compressed oxygen self-rescue device body 1 placed on one side of the connecting frame 16, so that the compressed oxygen self-rescue device body 1 can be closely attached to the diagonal side of the worker's buttocks.
[0037] When the compressed oxygen self-rescue device body 1 is needed, the staff can directly reach out and pull the entire compressed oxygen self-rescue device body 1 from the top of the connecting frame 16. Then, the compressed oxygen self-rescue device body 1 is inserted into the belt buckle 5 located in front of the staff's abdomen through the magnet block 18 and the metal collar 10, so that the staff can easily open the compressed oxygen self-rescue device body 1 for use.
[0038] Example 2
[0039] Automatic hazardous gas monitoring and alarm type compressed oxygen self-rescue device, such as Figure 2-4 As shown, this embodiment makes the following improvements based on embodiment 1: a set of T-shaped sliders 15 are fixed on one side of the outer wall of the connecting frame 16, a fixing frame 9 is fixed on the bottom outer wall of the fixing plate 11, a set of rectangular through grooves 13 are opened on one side of the outer wall of the fixing frame 9, a slot 14 is opened on the bottom outer wall of the rectangular through grooves 13, the T-shaped sliders 15 are inserted into the inner wall of the slot 14, and the T-shaped sliders 15 are slidably connected to the inner wall of the rectangular through grooves 13;
[0040] Multiple reinforcing plates 17 are fixed to the top outer wall of the fixing plate 11, and one side of the outer wall of the reinforcing plate 17 is fixed to one side of the outer wall of the compressed oxygen self-rescue device body 1.
[0041] The operator first aligns the slot 14 on the outer wall of the fixing frame 9 on one side of the compressed oxygen self-rescue device body 1 with the T-shaped slider 15 on the side of the connecting frame 16. Then, the slot 14 is inserted into the outer wall of the T-shaped slider 15, and the entire compressed oxygen self-rescue device body 1 is pushed down, so that the entire T-shaped slider 15 slides into the inner wall of the rectangular through groove 13. At this time, the fixing plate 11 at the top of the fixing frame 9 is also fixed to the top of the connecting frame 16 by the magnet block 18. Thus, the T-shaped slider 15 inserted into the rectangular through groove 13 and the inner wall of the fixing frame 9, together with the magnet block 18 and the metal collar 10, supports and fixes the entire compressed oxygen self-rescue device body 1 connected to the side of the connecting frame 16, improving the stability of the compressed oxygen self-rescue device body 1 on the side of the connecting frame 16 when carried by the operator, and preventing the compressed oxygen self-rescue device body 1 from being thrown off from behind the waist when the operator is working.
[0042] Working principle: The operator first aligns the slot 14 on the outer wall of the fixing frame 9 on one side of the compressed oxygen self-rescue device body 1 with the T-shaped slider 15 on one side of the connecting frame 16. Then, the slot 14 is inserted into the outer wall of the T-shaped slider 15. The operator then pushes the entire compressed oxygen self-rescue device body 1 downward, so that the entire T-shaped slider 15 slides into the inner wall of the rectangular through groove 13. At this time, the fixing plate 11 located at the top of the fixing frame 9 is also fixed to the top of the connecting frame 16 by the magnet block 18. Thus, the T-shaped slider 15 inserted into the rectangular through groove 13 and the inner wall of the fixing frame 9, together with the magnet block 18 and the metal collar 10, support and fix the entire compressed oxygen self-rescue device body 1 connected to one side of the connecting frame 16.
[0043] 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 compressed oxygen self-rescuer with automatic monitoring and alarm for harmful gases, comprising a compressed oxygen self-rescuer body (1) and a belt (2), characterized in that, A fixing plate (11) is fixed to one side of the outer wall of the compressed oxygen self-rescue device body (1). A set of magnet blocks (18) is fixed to the bottom outer wall of the fixing plate (11). A connecting frame (16) is fixed to the outer wall of the belt (2). A belt buckle (5) is provided at one end of the belt (2). A set of metal collars (10) is fixed to the top outer wall of the belt buckle (5) and the connecting frame (16). The magnet blocks (18) are inserted into the inner wall of the metal collars (10).
2. The automatic monitoring and alarming compressed oxygen self-rescuer for harmful gas according to claim 1, characterized in that, The compressed oxygen self-rescue device body (1) has a control box (7) fixed on the bottom outer wall. The inner wall of the control box (7) is equipped with a microcontroller, a temperature sensor, a miniature methane sensor and a carbon monoxide sensor.
3. The automatic hazardous gas monitoring and alarm type compressed oxygen self-rescue device according to claim 2, characterized in that, A filter screen (6) is provided on one side of the outer wall of the control box (7).
4. The automatic monitoring and alarming compressed oxygen self-rescuer for harmful gases according to claim 3, characterized in that, The control box (7) has a buzzer (4) installed on the bottom outer wall. The buzzer (4), temperature sensor, miniature methane sensor and carbon monoxide sensor are electrically connected to the single-chip microcomputer.
5. The automatic monitoring and alarming compressed oxygen self-rescuer for harmful gases according to claim 2, characterized in that, The compressed oxygen self-rescue device body (1) has a battery block (3) fixed on the bottom outer wall, and a charging interface (8) is provided on the outer wall of the battery block (3).
6. The automatic hazardous gas monitoring and alarm type compressed oxygen self-rescue device according to claim 1, characterized in that, An elastic pad (12) is fixed to the outer wall of the connecting frame (16).
7. The automatic monitoring and alarming compressed oxygen self-rescuer for harmful gases according to claim 6, characterized in that, A set of T-shaped sliders (15) is fixed on one side of the outer wall of the connecting frame (16), and a fixing frame (9) is fixed on the bottom outer wall of the fixing plate (11). A set of rectangular through grooves (13) is opened on one side of the outer wall of the fixing frame (9), and a slot (14) is opened on the bottom outer wall of the rectangular through groove (13). The T-shaped sliders (15) are inserted into the inner wall of the slot (14), and the T-shaped sliders (15) are slidably connected to the inner wall of the rectangular through groove (13).
8. The automatic monitoring and alarming compressed oxygen self-rescuer for harmful gases according to claim 7, characterized in that, Multiple reinforcing plates (17) are fixed to the top outer wall of the fixing plate (11), and one side of the outer wall of the reinforcing plate (17) is fixed to one side of the outer wall of the compressed oxygen self-rescue device body (1).
Citation Information
Patent Citations
Multifunctional self-rescuer
CN219090905U