Positive pressure type air respirator myopia mask with alarm function
By installing a transparent observation window and a myopia glasses bracket on the positive pressure air respirator mask, installing myopia lenses, and embedding a detection device, vision correction for myopic personnel and real-time monitoring of environmental gas composition are achieved. This solves the problems of limited vision for myopic personnel and insufficient environmental detection, and improves operational safety and efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- THREE GORGES JINSHAJIANG CHUANYUN HYDROPOWER DEV CO LTD
- Filing Date
- 2025-06-25
- Publication Date
- 2026-05-26
AI Technical Summary
Existing positive pressure breathing apparatus masks limit vision for nearsighted individuals and cannot monitor oxygen and sulfur hexafluoride levels in real time, affecting operational safety and efficiency.
A positive pressure air respirator mask with alarm function was designed. By setting a transparent observation window and a myopia mirror bracket on the mask, installing myopia lenses, and embedding a detection device inside the mask, including oxygen and sulfur hexafluoride content detectors, indicator lights and buzzers, real-time monitoring and alarm of vision correction and environmental gas composition can be achieved.
It solves the vision problems of nearsighted people and can monitor oxygen and sulfur hexafluoride content in real time, improving the safety and efficiency of operators, and promptly alerting abnormal situations through audible and visual alarms.
Smart Images

Figure CN224269949U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of breathing mask technology, and in particular relates to a positive pressure air respirator myopia mask with alarm function. Background Technology
[0002] Positive pressure breathing apparatus is widely used in various hazardous work environments such as fire fighting, chemical industry, and mining, providing reliable respiratory protection for workers.
[0003] Existing positive-pressure self-contained breathing apparatus (SCBA) masks have several shortcomings. For example, for nearsighted individuals, wearing regular glasses while wearing a SCBA mask can compromise the mask's seal, preventing it from providing adequate protection. Conversely, not wearing glasses can impair vision during work, severely impacting safety and efficiency. Furthermore, in specific work environments, such as power plants and substations involving sulfur hexafluoride (SF6) electrical equipment, SF6 gas leaks require on-site manual verification and effective handling. Real-time monitoring of oxygen and SF6 levels is crucial for quickly identifying leaks and ensuring worker safety. However, existing SCBA masks typically lack oxygen and SF6 level detection capabilities, failing to provide timely information on environmental gas composition. Abnormalities in oxygen or SF6 levels may go unnoticed, potentially leading to accidents. Utility Model Content
[0004] The purpose of this invention is to overcome the defects of the prior art by providing a positive pressure air respirator mask with alarm function, which can solve the vision problems of nearsighted people when wearing the mask, and at the same time realize the real-time monitoring of oxygen and sulfur hexafluoride content in the working environment, thereby improving the safety of workers and the efficiency of handling.
[0005] The objective of this utility model is achieved through the following technical solution:
[0006] A positive pressure air respirator face shield with alarm function includes a positive pressure air respirator face shield body, one end of which is provided with a protruding transparent observation window, a myopia glasses bracket is provided inside the transparent observation window, and a positive pressure air respirator face shield breathing connector is also connected to the positive pressure air respirator face shield body. A detection device is embedded in the positive pressure air respirator face shield breathing connector, and a power module is installed inside the detection device.
[0007] This implementation method utilizes the transparent observation window of the positive pressure air respirator face mask protruding from the face mask to create an installation space for myopia lenses. According to the user's needs, lenses matching the myopia prescription can be installed on the myopia lens holder, solving the vision problem of myopic people when wearing the face mask, without being affected by the temples of glasses. At the same time, the detection device can also detect the oxygen and harmful gas content in the environment, improving the safety of operators and the efficiency of handling.
[0008] In one embodiment, the positive pressure air respirator mask breathing connector is further provided with an indicator light and a buzzer, both of which are electrically connected to the power module.
[0009] In one embodiment, the transparent viewing window of the positive pressure air respirator mask is located above the breathing connector of the positive pressure air respirator mask.
[0010] In one embodiment, both the indicator light and the buzzer are located at the end of the breathing connector of the positive pressure air respirator mask near the transparent viewing window of the positive pressure air respirator mask.
[0011] In one embodiment, the indicator light includes a green LED indicator and a red LED indicator.
[0012] In one embodiment, a headband assembly is also provided at the end of the positive pressure air respirator mask body away from the transparent observation window of the positive pressure air respirator mask.
[0013] In one embodiment, the detection device includes an oxygen and sulfur hexafluoride content detector, which is electrically connected to the power module.
[0014] In one embodiment, the detection device further includes a data processing module, which is electrically connected to the oxygen and sulfur hexafluoride content detector, the indicator light, and the buzzer, respectively, and the power supply module supplies power to the data processing module.
[0015] In one embodiment, the oxygen and sulfur hexafluoride content detector is used to detect the oxygen content and the sulfur hexafluoride content and output the detection value to the data processing module. The data processing module has a preset safety threshold to determine whether the current environmental state is safe.
[0016] If the current environment is determined to be safe, then the green LED indicator light will be activated.
[0017] If the current environment is determined to be unsafe, then the red LED indicator and the buzzer will be activated simultaneously.
[0018] In one embodiment, a myopia lens is mounted on the myopia lens holder.
[0019] The beneficial effects of this utility model are as follows:
[0020] The mask provided by this utility model can not only solve the vision problem of nearsighted people wearing masks, but also realize the real-time monitoring of oxygen and sulfur hexafluoride content in the working environment, and issue audible and visual alarms in time when the content is abnormal, thereby improving the safety of workers and the efficiency of handling. Attached Figure Description
[0021] The present invention will be described in more detail below based on embodiments and with reference to the accompanying drawings. Wherein:
[0022] Figure 1 A schematic diagram of the structure of this utility model is shown;
[0023] Figure 2 The control logic diagram of this utility model is shown;
[0024] In the accompanying drawings, the same parts use the same reference numerals. The drawings are not to scale.
[0025] Figure label:
[0026] 1-Positive pressure air respirator mask body, 2-Positive pressure air respirator mask transparent observation window, 3-Myopia glasses bracket, 4-Myopia lenses, 5-Positive pressure air respirator mask breathing connector, 6-Detection device, 7-Oxygen and sulfur hexafluoride content detector, 8-Green LED indicator, 9-Red LED indicator, 10-Buzzer, 11-Headband assembly. Detailed Implementation
[0027] The present invention will be further described below with reference to the accompanying drawings.
[0028] This utility model provides a positive pressure air respirator face mask with alarm function, such as... Figure 1 As shown, it includes a positive pressure air respirator mask body 1, one end of which is provided with a protruding positive pressure air respirator mask transparent observation window 2, inside which is provided a myopia glasses bracket 3, and the positive pressure air respirator mask body 1 is also connected to a positive pressure air respirator mask breathing connector 5, the positive pressure air respirator mask breathing connector 5 is embedded with a detection device 6, and the detection device 6 is equipped with a power module.
[0029] Specifically, such as Figure 1As shown, the transparent observation window 2 of the positive pressure air respirator mask is located above the breathing connector 5 of the positive pressure air respirator mask. A headband assembly 11 is also provided at one end of the transparent observation window of the respirator mask. Myopia lenses 4 are installed on the myopia glasses bracket 3, which can be adapted to myopia lenses 4 of different degrees to meet the needs of workers with different degrees of myopia.
[0030] It should be noted that the transparent observation window 2 of the positive pressure air respirator mask protruding from the positive pressure air respirator mask forms an installation space for the myopia lens 4. According to the user's needs, the myopia lens can be installed on the myopia lens bracket 3 to solve the vision problem of myopic people when wearing the mask, without being affected by the temple of the glasses. At the same time, the detection device 6 can also detect the oxygen and harmful gas content in the environment, which improves the safety of operators and the efficiency of handling.
[0031] Specifically, such as Figure 1 and 2 As shown, the breathing connector 5 of the positive pressure air respirator mask is also equipped with an indicator light and a buzzer 10. The indicator light and buzzer 10 are both electrically connected to the power module. The indicator light and buzzer 10 are located at the end of the breathing connector 5 of the positive pressure air respirator mask near the transparent observation window 2 of the positive pressure air respirator mask. The indicator light includes a green LED indicator 8 and a red LED indicator 9. The detection device 6 includes an oxygen and sulfur hexafluoride content detector 7. The oxygen and sulfur hexafluoride content detector 7 is electrically connected to the power module. The detection device 6 also has a data processing module. The data processing module is electrically connected to the oxygen and sulfur hexafluoride content detector 7, the indicator light and the buzzer 10 respectively. The power module supplies power to the data processing module.
[0032] Furthermore, the oxygen and sulfur hexafluoride content detector 7 is used to detect the oxygen content and sulfur hexafluoride content and output the detection value to the data processing module. The data processing module has a preset safety threshold to determine whether the current environmental state is safe.
[0033] If the current environment is determined to be safe, then control the green LED indicator 8 to start;
[0034] If the current environment is determined to be unsafe, then simultaneously control the red LED indicator 9 and the buzzer 10 to start;
[0035] It should be noted that the power module can be a button battery, supplying power to the data processing module, oxygen and sulfur hexafluoride detectors, indicator lights, and buzzer 10. The oxygen sensor uses electrochemical or optical principles to accurately measure the oxygen content in the environment, with a measurement range of 0-100% VOL. The sulfur hexafluoride sensor uses specialized gas detection technology, such as infrared absorption or electrochemical principles, to accurately detect the sulfur hexafluoride content in the environment, with a measurement range of 0-1000 ppm. The sensor is connected to the mask using an embedded design, with the sensor probe installed at the mask's air inlet, ensuring real-time and accurate detection of the current ambient gas composition without affecting the mask's overall structure and protective performance.
[0036] When the positive pressure air respirator's myopia mask is in operation, the oxygen and sulfur hexafluoride content detector 7 installed near the air inlet starts working, detecting the oxygen and sulfur hexafluoride content in the environment in real time, converting the detected gas content information into electrical signals, and transmitting these electrical signals to the internal control circuit through the signal transmission line. The control circuit processes and analyzes the received electrical signals, converts them into actual gas content data, and compares them with the preset safety thresholds. For example, when the control circuit determines, based on the sensor data, that the oxygen content is below 18% VOL or the sulfur hexafluoride content is above 500 ppm, etc., the red LED indicator 9 flashes and the buzzer 10 is activated, simultaneously alerting the operator to the abnormal environmental gas content from both visual and audible perspectives. If the oxygen and sulfur hexafluoride content are both determined to be normal, the green LED indicator 8 flashes.
[0037] In the description of this utility model, it should be understood that the terms "upper", "lower", "bottom", "top", "front", "rear", "inner", "outer", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0038] While specific embodiments of the present invention have been described herein with reference to them, it should be understood that these embodiments are merely examples of the principles and applications of the present invention. Therefore, it should be understood that many modifications can be made to the exemplary embodiments, and other arrangements can be designed without departing from the spirit and scope of the present invention as defined by the appended claims. It should be understood that different dependent claims and features described herein can be combined in ways different from those described in the original claims. It is also understood that features described in conjunction with individual embodiments can be used in other described embodiments.
Claims
1. A positive pressure air respirator near vision visor with an alarm function, characterized by, The device includes a positive pressure air respirator mask body, one end of which is provided with a protruding transparent observation window. A nearsighted glasses bracket is provided inside the transparent observation window. A positive pressure air respirator mask breathing connector is also connected to the positive pressure air respirator mask body. A detection device is embedded in the positive pressure air respirator mask breathing connector, and a power module is installed inside the detection device.
2. A positive pressure air respirator with alarm function for myopia as described in claim 1, characterized in that, The positive pressure air respirator mask breathing connector is also equipped with an indicator light and a buzzer, both of which are electrically connected to the power module.
3. A positive pressure air respirator with alarm function for nearsightedness as described in claim 2, characterized in that, The transparent observation window of the positive pressure air respirator mask is located above the breathing connector of the positive pressure air respirator mask.
4. A positive pressure air respirator with alarm function for nearsightedness as described in claim 3, characterized in that, The indicator light and the buzzer are both located at the end of the breathing connector of the positive pressure air respirator mask near the transparent observation window of the positive pressure air respirator mask.
5. A positive pressure air respirator with alarm function for nearsightedness as described in claim 2, characterized in that, The indicator lights include green LED indicators and red LED indicators.
6. A positive pressure air respirator with alarm function for myopia as described in claim 1, characterized in that, A headband assembly is also provided at the end of the positive pressure air respirator mask body away from the transparent observation window of the positive pressure air respirator mask.
7. A positive pressure air respirator face mask with alarm function according to claim 5, characterized in that, The detection device includes an oxygen and sulfur hexafluoride content detector, which is electrically connected to the power module.
8. A positive pressure air respirator with alarm function for nearsightedness as described in claim 7, characterized in that, The detection device also includes a data processing module, which is electrically connected to the oxygen and sulfur hexafluoride content detector, the indicator light, and the buzzer, respectively. The power supply module supplies power to the data processing module.
9. A positive pressure air respirator with alarm function for myopia as described in claim 8, characterized in that, The oxygen and sulfur hexafluoride content detector is used to detect the oxygen content and sulfur hexafluoride content and output the detection value to the data processing module. The data processing module has a preset safety threshold to determine whether the current environmental state is safe. If the current environment is determined to be safe, then the green LED indicator light will be activated. If the current environment is determined to be unsafe, then the red LED indicator and the buzzer will be activated simultaneously.
10. A positive pressure air respirator with alarm function for myopia as described in claim 1, characterized in that, The myopia glasses holder is fitted with myopia lenses.