Respiratory device

Abstract

The application discloses a breathing device, belonging to the technical field of mine production, comprising a mouth-nose mask, a filtering part and an oxygen supply part; a breathing cavity is formed in the mouth-nose mask, a partition plate is arranged in the breathing cavity, and the partition plate is used for dividing the breathing cavity into a compressed oxygen cavity and a filtering gas cavity in a direction away from a face; the filtering part is arranged on the mouth-nose mask at a position in communication with the filtering gas cavity, and the filtering part is used for guiding external air into the filtering gas cavity after filtering; a through hole for connecting the filtering gas cavity and the compressed oxygen cavity is formed in the partition plate, so as to form a two-cavity communication channel, and the opening and closing state of the two-cavity communication channel is adjustable; the oxygen supply part is in communication with the compressed oxygen cavity, and the oxygen supply part is used for conveying compressed oxygen to the compressed oxygen cavity when the two-cavity communication channel is in a blocked state.

Description

Technical Field

[0001] This application belongs to the field of mining production technology, and specifically relates to a breathing device. Background Technology

[0002] During mining operations, core working faces such as fully mechanized mining and tunneling generate large amounts of dust, along with the release of toxic and harmful gases such as carbon monoxide and methane. Long-term inhalation of high concentrations of dust can easily lead to pneumoconiosis, directly threatening the lives and health of underground workers. Even with ventilation and gas detection systems, areas such as roadway corners, blind alleys, and enclosed goaf areas may still experience excessive levels of toxic and harmful gases. Coupled with the uncertainty of sudden accidents underground, there is an urgent need to provide workers with a breathing device that integrates dust protection and emergency oxygen supply. Utility Model Content

[0003] In view of this, this application provides a breathing device that integrates dust protection and emergency oxygen supply.

[0004] To achieve the above objectives, this application mainly provides the following technical solutions: This application provides a breathing device, comprising: A mouth and nose mask, wherein a breathing chamber is formed within the mouth and nose mask, and a partition is provided within the breathing chamber, the partition being used to divide the breathing chamber into a compressed oxygen chamber and a filtered gas chamber in a direction away from the face; A filter section is disposed on the mouth and nose mask and connected to the filter gas chamber. The filter section is used to filter the outside air and guide it into the filter gas chamber. A through hole is provided on the partition plate to connect the filter gas chamber and the compressed oxygen chamber to form a two-chamber communication channel. The on / off state of the two-chamber communication channel is adjustable. An oxygen supply unit is connected to the compressed oxygen chamber. The oxygen supply unit is used to supply compressed oxygen to the compressed oxygen chamber when the communication channel between the two chambers is blocked.

[0005] Optionally, the breathing device further includes: A guide tube is disposed inside the filtered gas chamber, with one end of the guide tube connected to the through hole and the other end open; A flap is rotatably mounted on the open end of the guide tube via a rotating connector. The flap has a blocking position and a conducting position. When the flap rotates to the blocking position, it covers the open end of the guide tube to block the two-cavity communication channel. When the flap rotates to the conducting position, it disengages from the open end of the guide tube to open the two-cavity communication channel.

[0006] Optionally, the end of the guide tube away from the through hole is an open end, and the end face of the open end is set as an inclined surface. The inclined surface is inclined from the side close to the rotating connector to the side away from the rotating connector, and is inclined along the rotation direction of the flap from the conducting position to the blocking position.

[0007] Optionally, the breathing device further includes: A mask end cap, wherein the mouth and nose mask has a wearing end and a mounting end opposite to the wearing end, and the mask end cap is disposed on the mounting end; An elastic element, one end of which is connected to the flap, and the other end of which is fixed relative to the end cap of the mask; An electromagnetic drive unit is used to cooperate with the elastic element to rotate the flap, thereby switching the two-cavity communication channel between the blocked state and the open state.

[0008] Optionally, the electromagnetic drive is used to drive the flap to rotate in the first direction, so as to cause the elastic element to undergo elastic deformation and accumulate elastic potential energy, while switching the two-cavity communication channel from the blocked state to the open state.

[0009] Optionally, the elastic element is used to release the accumulated elastic potential energy to drive the flap to rotate in the second direction, so that the two-cavity communication channel switches from the conducting state to the blocking state.

[0010] Optionally, the breathing device further includes: A gas sensor is disposed on the outside of the mouth and nose mask to detect the concentration of toxic and harmful gases in the environment.

[0011] Optionally, the breathing device further includes: An audible and visual alarm is also provided on the outside of the mouth and nose mask, and is used to issue an audible alarm signal and a visual alarm signal when the gas sensor detects that the concentration of toxic and harmful gas exceeds a first preset threshold.

[0012] Optionally, the breathing device further includes: A power module, integrated on the end cover of the mask, is used to supply power to the electromagnetic drive, the gas sensor, and the audible and visual alarm.

[0013] Optionally, the breathing device further includes: An oxygen delivery tube, one end of which is connected to the oxygen supply unit, and the other end of which is detachably connected to the compressed oxygen chamber.

[0014] By employing the above technical solution, this application has at least the following beneficial effects: The breathing apparatus provided in this application, by setting a partition, can divide the breathing chamber inside the mouth and nose mask into a compressed oxygen chamber and a filtered gas chamber. Combined with the adjustable on / off state of the two chambers connecting channels, the filter can filter external dust and then deliver clean air to the filtered gas chamber to meet dust prevention requirements and protect workers from the threat of pneumoconiosis. When the toxic and harmful gases in the roadway exceed the standard or a sudden accident occurs, the two chambers connecting channels can be blocked, and compressed oxygen can be delivered to the compressed oxygen chamber through the oxygen supply unit to achieve emergency oxygen supply. Ultimately, the dust prevention and emergency oxygen supply functions are integrated, adapting to the complex underground working environment and effectively protecting the life, health and safety of workers. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of a breathing device according to an optional embodiment of this application; Figure 2 A cross-sectional view of a mouth and nose mask according to an alternative embodiment of this application; Figure 3 This is a three-dimensional structural diagram of the guide tube and flap in an optional embodiment of this application.

[0016] The reference numerals in the attached figures are as follows: 1. Nose and nose mask; 11. Compressed oxygen chamber; 12. Filtered gas chamber; 2. Partition; 3. Filter section; 4. Oxygen supply section; 5. Guide tube; 6. Flip plate; 7. Mask end cap; 8. Elastic component; 9. Electromagnetic drive component; 10. Power module. Detailed Implementation

[0017] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application 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 application.

[0018] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0019] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0020] The preferred embodiments of this application are described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit this application.

[0021] See also Figures 1 to 3 As shown, according to an embodiment of this application, a breathing device is provided, including a mouth and nose mask 1, a filter section 3, and an oxygen supply section 4; a breathing chamber is formed inside the mouth and nose mask 1, and a partition 2 is provided inside the breathing chamber. The partition 2 is used to divide the breathing chamber into a compressed oxygen chamber 11 and a filtered gas chamber 12 in a direction away from the face; the filter section 3 is disposed on the mouth and nose mask 1 at a position communicating with the filtered gas chamber 12, and the filter section 3 is used to filter the outside air and guide it into the filtered gas chamber 12; a through hole is opened on the partition 2 to communicate between the filtered gas chamber 12 and the compressed oxygen chamber 11 to form a communication channel between the two chambers, and the on / off state of the communication channel between the two chambers is adjustable; the oxygen supply section 4 is connected to the compressed oxygen chamber 11, and the oxygen supply section 4 is used to supply compressed oxygen to the compressed oxygen chamber 11 when the communication channel between the two chambers is blocked.

[0022] The breathing device provided in the embodiments of this application can divide the breathing chamber inside the mouth and nose mask 1 into a compressed oxygen chamber 11 and a filtered gas chamber 12 by setting a partition 2. Combined with the two-chamber connection channel with adjustable on / off state, the external dust can be filtered by the filter part 3 and clean air can be delivered to the filtered gas chamber 12 to meet the dust prevention requirements and protect the workers from the threat of pneumoconiosis. When the toxic and harmful gases in the roadway exceed the standard or there is a sudden accident, the two-chamber connection channel can be blocked, and compressed oxygen can be delivered to the compressed oxygen chamber 11 through the oxygen supply part 4 to achieve emergency oxygen supply. Finally, the dust prevention and emergency oxygen supply functions are integrated, which is suitable for the complex underground working environment and effectively protects the life, health and safety of the workers.

[0023] Among them, the mouth and nose mask 1 is the main body that fits the face. It can be made of materials such as rigid medical-grade plastic to support and install other components.

[0024] The partition 2 is a vertical plate, which can be a silicone plate or the like, to divide the inside of the mouth and nose mask 1 into two independent cavities, namely the compressed oxygen cavity 11 and the filtered gas cavity 12.

[0025] Specifically, the gas filtration chamber 12 is located on the side of the compressed oxygen chamber 11 away from the face. The mouth and nose mask 1 is provided with a filter part 3 connected to the gas filtration chamber 12. The filter part 3 can be a circular or square filter structure made of three layers of composite filter material such as non-woven fabric, meltblown fabric and activated carbon fiber. There can be one or two of them. It is used to filter dust and other impurities in the outside air. The compressed oxygen chamber 11 is connected to the oxygen supply part 4. The oxygen supply part 4 can be a self-rescue device with a built-in compressed oxygen cylinder for storing and transporting compressed oxygen.

[0026] The partition 2 has square or circular through holes to form a channel connecting the compressed oxygen chamber 11 and the filtered gas chamber 12, i.e., a two-chamber connection channel that can be opened or closed manually or automatically.

[0027] Specifically, in some examples, the two-chamber connection channel is manually controlled to open or close. For example, a manual valve or lever structure can be installed on the outside of the mouth and nose mask 1, allowing the operator to actively switch the on / off state of the two-chamber connection channel based on the on-site environment. In other examples, the two-chamber connection channel is automatically controlled to open or close. For example, a gas sensor can monitor the concentration of toxic and harmful gases or oxygen content in the outside environment in real time. When the detected data exceeds the safety threshold, the control system automatically triggers the valve to close the channel, quickly switching to emergency oxygen supply mode without manual intervention. In this embodiment, the two-chamber connection channel is automatically controlled to open or close. When the two-chamber connection channel is in the open state, outside air enters the filtered gas chamber 12 after being filtered by the filter unit 3 to remove dust, and then flows into the compressed oxygen chamber 11 through the through hole, ultimately being inhaled by the operator, preventing dust from entering the respiratory tract. When the detection of excessive toxic and harmful gases, the two-chamber connection channel is automatically blocked, cutting off the path for outside air to enter. At this time, the oxygen supply unit 4 delivers pure compressed oxygen to the compressed oxygen chamber 11, allowing the operator to directly inhale oxygen and ensuring respiratory safety.

[0028] In some possible implementations disclosed in this application, see [link to relevant documentation]. Figure 2 and Figure 3 As shown, the breathing device also includes a guide tube 5 and a flap 6; the guide tube 5 is disposed in the gas filtering chamber 12, one end of the guide tube 5 is connected to the through hole, and the other end is open; the flap 6 is rotatably disposed at the open end of the guide tube 5 through a rotating connector, and the flap 6 has a blocking position and a conducting position; when the flap 6 is rotated to the blocking position, the flap 6 covers the open end of the guide tube 5 to block the communication channel between the two chambers; when the flap 6 is rotated to the conducting position, the flap 6 disengages from the open end of the guide tube 5 to open the communication channel between the two chambers.

[0029] In this embodiment, by setting a guide pipe 5 communicating with a through hole in the filtered gas chamber 12, and configuring a rotatable flap 6 at the open end of the guide pipe 5, the precise and reliable opening and closing of the two-chamber communication channel can be achieved by switching between the blocking and opening positions of the flap 6. Specifically, the guide pipe 5 can guide the filtered air to flow directionally towards the through hole, avoiding airflow turbulence that affects breathing smoothness. The flap 6 can quickly respond to the on / off control through the rotating structure of the rotating connector. At the same time, the full-coverage blocking of the open end of the guide pipe 5 by the flap 6 can effectively isolate the filtered gas chamber 12 and the compressed oxygen chamber 11, preventing the crossflow of toxic and harmful gases, further improving the sealing safety in the emergency oxygen supply mode. The overall structure is adapted to the usage requirements of the downhole working environment, ensuring the stability and reliability of the breathing device's function switching.

[0030] In this embodiment, the through hole on the partition 2 is a square through hole, and the guide pipe 5 connected to the square through hole is a square pipe.

[0031] The rotating connector can be a hinge, a pivot, etc., so that the flap 6 can be flexibly rotated to the blocking position and the conducting position.

[0032] Specifically, one edge of the flap 6 is connected to the open end edge of the guide pipe 5 via a rotating connector, allowing the flap 6 to rotate flexibly around this edge. In this embodiment, see... Figure 3 As shown, when it is necessary to block the connection between the two chambers, the flap 6 rotates clockwise around the rotating connector to the inside of the guide tube 5 until it completely covers the open end of the guide tube 5, and tightly fits with the edge of the open end to form a seal, thereby blocking the connection between the two chambers; when it is necessary to open the connection, the flap 6 rotates counterclockwise around the rotating connector to the outside of the guide tube 5, disengaging from the open end of the tube, allowing the filtered air to flow smoothly into the through hole along the guide tube 5, ensuring that the gas flow between the two chambers is unobstructed.

[0033] In some possible implementations disclosed in this application, see [link to relevant documentation]. Figure 2 and Figure 3 As shown, the end of the guide tube 5 away from the through hole is the open end, and the end face of the open end is set as an inclined surface. The inclined surface is inclined from the side closer to the rotating connector to the side away from the rotating connector, and is inclined along the rotation direction of the flap 6 from the conducting position to the blocking position.

[0034] In this embodiment, by setting the end face of the open end of the guide tube 5 to be an inclined surface that slopes from the side near the rotating connector to the side away from the rotating connector, and along the rotation direction of the flap 6 from the conducting position to the blocking position, it can conform to the airflow direction, improve the sealing reliability when blocking, reduce the sealing gap, and optimize the stability and practicality of the on / off control of the two-cavity communication channel.

[0035] In some possible implementations disclosed in this application, see [link to relevant documentation]. Figure 2 and Figure 3 As shown, the breathing device also includes a mask end cap 7, an elastic element 8, and an electromagnetic drive element 9; the mouth and nose mask 1 has a wearing end and an installation end opposite to the wearing end, and the mask end cap 7 is placed on the installation end; one end of the elastic element 8 is connected to the flap 6, and the other end is fixed relative to the mask end cap 7; the electromagnetic drive element 9 is used to cooperate with the elastic element 8 to make the flap 6 rotate, thereby switching the two-chamber communication channel between the blocked state and the open state.

[0036] In this embodiment, by setting a mask end cap 7, an elastic element 8, and an electromagnetic drive element 9, the mask end cap 7 provides fixed support for the elastic element 8 and the electromagnetic drive element 9. The automatic rotation of the flap 6 is achieved by the cooperation of the elastic element 8 and the electromagnetic drive element 9. This not only meets the automatic control requirements of the two-chamber communication channel, allowing the two-chamber communication channel to switch quickly and smoothly between the blocked state and the open state, but also ensures the sealing of the flap 6 when it is in the blocked position through the pre-tightening force of the elastic element 8, preventing the leakage of toxic and harmful gases. At the same time, the electromagnetic drive element 9 responds quickly and can be triggered to switch immediately in case of sudden danger downhole. The overall structure is compact and the operation is reliable, which further improves the stability, safety and emergency response efficiency of the automatic control of the breathing device, and meets the automatic protection requirements of complex downhole operations.

[0037] Among them, the wearing end of the mouth and nose mask 1 has a wide opening structure, which is used to fit closely to the face to ensure a sealing effect; the opposite mounting end has a narrow opening structure, which is adapted to the cover installation of the mask end cap 7, and at the same time provides reasonable installation space for components such as elastic element 8 and electromagnetic drive element 9.

[0038] Among them, the mask end cap 7 is a vertical plate structure. After installation, it is set opposite to the guide pipe 5 and the flap 6 in the gas filtering chamber 12. It can provide stable fixed support for the elastic element 8, and can not block the air intake path of the guide pipe 5 and the rotation space of the flap 6, thus ensuring the normal operation of the device.

[0039] Among them, the electromagnetic drive component 9 is located on the side of the mask end cap 7 near the flap 6 and the guide tube 5. As a power source, it can generate magnetic force after being powered on. It drives the flap 6 to rotate around the rotating connector from the blocking position to the conducting position, thereby switching the two-cavity communication channel from the blocking state to the conducting state.

[0040] Specifically, the electromagnetic drive unit 9 can be an electromagnet or the like. The first direction in which it drives the flap 6 to rotate is the rotation direction from the blocking position to the opening position, that is, rotating counterclockwise to the outside of the guide tube 5. When the electromagnetic drive unit 9 is energized and generates magnetic force to attract the flap 6, causing the flap 6 to rotate in the first direction, the elastic element 8 connected to the flap 6 will undergo elastic deformation and accumulate elastic potential energy, providing power for the subsequent reset of the flap 6.

[0041] Among them, the elastic element 8 is also set on the side of the mask end cap 7 near the flap 6 and the guide tube 5. One end of it is connected to the flap 6, and the other end is fixedly connected to the mask end cap 7. In the initial state, the flap 6 is pressed against the open end of the guide tube 5 by its own pre-tightening force, so that the two-cavity communication channel is kept blocked. When the electromagnetic drive 9 is energized to attract the flap 6 and drive it to rotate in the first direction, the elastic element 8 is compressed and undergoes elastic deformation and accumulates elastic potential energy. After the electromagnetic drive 9 is de-energized, the elastic element 8 releases the elastic potential energy, drives the flap 6 to reverse and reset to the blocking position, and re-blocks the two-cavity communication channel.

[0042] Specifically, the elastic element 8 can be a spring or similar material. When the elastic element 8 releases its accumulated elastic potential energy, it can drive the flap 6 to rotate in the second direction, which is the opposite direction to the first direction, i.e., from the conducting position to the blocking position, such as rotating clockwise inside the guide tube 5, thus switching the two-cavity communication channel from the conducting state to the blocking state. It should be noted that the closing of the flap 6 can be achieved solely by the mechanical force of the spring element, without relying on external power. This ensures the reliability of closing the two-cavity communication channel in an emergency, effectively avoiding the risk of the channel failing to close due to power failures such as battery depletion, and further improving the emergency safety protection performance of the device.

[0043] In some possible embodiments disclosed in this application, the breathing device further includes a gas monitoring and alarm module, which is disposed on the outside of the mouth and nose mask 1 and adjacent to the filter part 3. The gas monitoring and alarm module includes a gas sensor, a signal processing circuit board, and a switch control component. The gas sensor is electrically connected to the signal processing circuit board and is used to detect the concentration of toxic and harmful gases in the environment and convert the concentration signal into an electrical signal and transmit it to the signal processing circuit board. The signal processing circuit board is provided with a circuit for comparing with a first preset threshold. When the detected concentration exceeds the limit, a first control signal is output to the switch control component. The switch control component is connected in series in the power supply circuit of the electromagnetic drive 9 and is used to cut off the power supply circuit of the electromagnetic drive 9 according to the first control signal.

[0044] In this embodiment, a gas monitoring and alarm module, including a gas sensor, a signal processing circuit board, and a switch control component, is installed on the outside of the mouth and nose mask 1 and near the filter section 3. The gas sensor accurately detects the concentration of toxic and harmful gases in the environment in real time. After the signal processing circuit board compares the concentration with a first preset threshold, the switch control component quickly cuts off the power supply circuit of the electromagnetic drive component 9 when the concentration exceeds the limit. This automatically triggers the flap 6 to reset and block the connection between the two chambers, and switches to the emergency oxygen supply mode. It also has integrated monitoring, judgment, and control functions, which not only enables immediate response to emergencies and reduces human intervention errors, but also improves the timeliness and accuracy of gas detection by being installed near the filter section 3. This further enhances the automatic protection capability and emergency reliability of the breathing device, and fully adapts to the safety requirements of downhole operations. Here, the switch control component is an electromagnetic switch, and the first preset threshold is the upper limit of the safe concentration of toxic and harmful gases in the environment, such as the safe limit of a specific toxic gas in the downhole working environment. When the detected concentration exceeds the threshold, it is determined to be a dangerous situation. The first control signal is the power-off trigger signal output by the signal processing circuit board when the detected concentration exceeds the first preset threshold. It is used to control the electromagnetic switch to disconnect the power supply circuit of the electromagnetic drive 9, thereby triggering the device to switch to the emergency oxygen supply mode.

[0045] The gas monitoring and alarm module is located on the side of the mask end cap 7 away from the flap 6 and the guide tube 5. It can monitor the gas concentration near the filter section 3 in the external environment at close range, and avoid structural interference with moving parts such as the flap 6 and the guide tube 5 in the gas filtering chamber 12. At the same time, the vertical plate structure of the mask end cap 7 can provide stable installation support for it, ensuring that the module works stably in the complex environment downhole and does not affect the normal operation of the internal components of the breathing device, further optimizing the compactness and functional coordination of the overall structure.

[0046] Specifically, in addition to cutting off the power supply circuit of the electromagnetic drive unit 9 when the concentration of toxic and harmful gases in the environment exceeds the standard, the gas monitoring and alarm module can also output a second control signal through the signal processing circuit board when it detects that the concentration of toxic and harmful gases in the environment has dropped below the second preset threshold. This control signal controls the switch control component to reclose the power supply circuit of the electromagnetic drive unit 9, allowing the electromagnetic drive unit 9 to be energized again. Consequently, the adsorption flap 6 rotates to the conducting position in the first direction, restoring the conduction state of the two-cavity connecting channel, and the device switches back to the daily dustproof breathing mode. Here, the second preset threshold is the safe return concentration value below the first preset threshold, and the second control signal is the power-on trigger signal output by the signal processing circuit board when the detected concentration is below the second preset threshold. This signal is used to control the electromagnetic switch to close the power supply circuit of the electromagnetic drive unit 9, achieving a smooth switch from the emergency oxygen supply mode to the daily dustproof mode.

[0047] In some possible embodiments disclosed in this application, the breathing device also includes an audible and visual alarm, which is also disposed on the outside of the mouth and nose mask 1, and is used to issue an audible alarm signal and a visual alarm signal when the gas sensor detects that the concentration of toxic and harmful gas exceeds a first preset threshold.

[0048] In this embodiment, an audible and visual alarm is added to the outside of the mouth and nose mask 1. When the gas sensor detects that the concentration of toxic and harmful gas exceeds the first preset threshold, it simultaneously emits an audible alarm signal and a visual alarm signal. This not only promptly alerts the wearer to the danger in their environment and that the device has switched to emergency oxygen supply mode, but also transmits a danger warning to nearby workers, facilitating on-site coordination for hazard avoidance or rescue. At the same time, the dual audible and visual alarm is adapted to the complex auditory and visual environment underground, and is more easily detected than a single alarm method, further improving the effectiveness of the alarm. It complements the control function of the gas monitoring alarm module, comprehensively enhancing the safety early warning capability and on-site emergency protection effect of the breathing device.

[0049] In this embodiment, the oxygen supply unit 4 is manually activated. After hearing the alarm signal from the audible and visual alarm, the operator can trigger the oxygen supply unit 4 to start by pressing, rotating, or performing other preset manual operations, thus delivering pure compressed oxygen to the compressed oxygen chamber 11. This ensures a rapid response and autonomous oxygen supply in the event of an emergency. At the same time, the manual activation method does not rely on electric drive, further improving the reliability of the oxygen supply unit 4's activation and avoiding the risk of not being able to supply oxygen in time due to equipment failure. This works in conjunction with the function of automatically blocking the connection between the two chambers to comprehensively protect the emergency breathing safety of the operator.

[0050] In some possible implementations disclosed in this application, see [link to relevant documentation]. Figure 2 and Figure 3 As shown, the breathing device also includes a power module 10, which is integrated on the end cover 7 of the mask and is used to power the gas monitoring and alarm module.

[0051] In this embodiment, by integrating the power module 10 onto the end cap 7 of the mask to supply power to the gas monitoring and alarm module, on the one hand, the power supply and related electrical components are arranged close together, reducing wiring complexity and making the overall structure more compact, which is suitable for the installation space requirements of the mouth and nose mask 1; on the other hand, the independent and integrated power supply design can provide stable and continuous power support for the gas monitoring and alarm module, ensuring that its core functions such as real-time monitoring, signal processing, alarm triggering and on / off control are not affected by power supply interference, avoiding module failure due to unstable power supply or line faults. At the same time, the integrated design also facilitates installation, maintenance and subsequent power supply replacement, further ensuring the reliable operation of the automatic protection and early warning functions of the breathing device, and adapting to the usage requirements of complex downhole working environments.

[0052] The power supply module can be a storage battery, etc.

[0053] In some possible implementations disclosed in this application, see [link to relevant documentation]. Figure 1 As shown, the breathing device also includes an oxygen delivery tube, one end of which is connected to the oxygen supply unit 4, and the other end is detachably connected to the compressed oxygen chamber 11.

[0054] In this embodiment, by setting up an oxygen supply tube with one end connected to the oxygen supply unit 4 and the other end detachably connected to the compressed oxygen chamber 11, a flexible connection channel is established between the oxygen supply unit 4 and the main body of the mouth and nose mask 1. This allows the oxygen supply unit 4 to be suspended or fixed to the worker's waist through the oxygen supply tube, eliminating the need to wear it on the head along with the mouth and nose mask 1. This reduces the load on the head, improves wearing comfort, and avoids interference from head movements with the oxygen supply device. At the same time, the detachable design allows for flexible adjustment of the wearing position of the oxygen supply unit 4 according to operational needs, adapting to the usage habits of workers of different body types. This ensures that the oxygen supply unit 4 can be stably placed on the waist during underground operations without affecting limb movement, further optimizing the human-machine adaptability of the device.

[0055] The mouth and nose mask 1 is provided with a hose connector at the position where it connects to the compressed oxygen chamber 11. The hose connector and the oxygen delivery tube can be detached and connected by means of plugging and unplugging.

[0056] Specifically, the oxygen delivery tube is a medical-grade plastic or rubber tube with a certain degree of flexibility, and its length can be 50cm to 80cm to fit the needs of wearing it around the waist. The end away from the hose connector is connected to the valve interface at the outlet of the compressed oxygen cylinder built into the oxygen supply unit 4. A snap-on or threaded connection can be used to ensure sealing. It is used to directionally transmit fresh compressed oxygen in the compressed oxygen cylinder to the compressed oxygen chamber 11 to ensure the efficiency and reliability of gas delivery during emergency oxygen supply.

[0057] It will be readily understood by those skilled in the art that the aforementioned advantageous methods can be freely combined and superimposed without conflict.

[0058] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application. The above are merely preferred embodiments of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of this application, and these improvements and modifications should also be considered within the protection scope of this application.

Claims

1. A breathing device, characterized in that, include: A mouth and nose mask, wherein a breathing chamber is formed within the mouth and nose mask, and a partition is provided within the breathing chamber, the partition being used to divide the breathing chamber into a compressed oxygen chamber and a filtered gas chamber in a direction away from the face; A filter section is disposed on the mouth and nose mask and connected to the filter gas chamber. The filter section is used to filter the outside air and guide it into the filter gas chamber. A through hole is provided on the partition plate to connect the filter gas chamber and the compressed oxygen chamber to form a two-chamber communication channel. The on / off state of the two-chamber communication channel is adjustable. An oxygen supply unit is connected to the compressed oxygen chamber. The oxygen supply unit is used to supply compressed oxygen to the compressed oxygen chamber when the communication channel between the two chambers is blocked.

2. The breathing device according to claim 1, characterized in that, Also includes: A guide tube is disposed inside the filtered gas chamber, with one end of the guide tube connected to the through hole and the other end open; A flap is rotatably mounted on the open end of the guide tube via a rotating connector. The flap has a blocking position and a conducting position. When the flap rotates to the blocking position, it covers the open end of the guide tube to block the two-cavity communication channel. When the flap rotates to the conducting position, it disengages from the open end of the guide tube to open the two-cavity communication channel.

3. The breathing device according to claim 2, characterized in that, The end of the guide tube away from the through hole is an open end, and the end face of the open end is set as an inclined surface. The inclined surface is inclined from the side close to the rotating connector to the side away from the rotating connector, and is inclined along the rotation direction of the flap from the conducting position to the blocking position.

4. The breathing device according to claim 2, characterized in that, Also includes: A mask end cap, wherein the mouth and nose mask has a wearing end and a mounting end opposite to the wearing end, and the mask end cap is disposed on the mounting end; An elastic element, one end of which is connected to the flap, and the other end of which is fixed relative to the end cap of the mask; An electromagnetic drive unit is used to cooperate with the elastic element to rotate the flap, thereby switching the two-cavity communication channel between the blocked state and the open state.

5. The breathing device according to claim 4, characterized in that, The electromagnetic drive is used to drive the flap to rotate in the first direction, so as to cause the elastic element to undergo elastic deformation and accumulate elastic potential energy, and at the same time switch the two-cavity connecting channel from the blocked state to the open state.

6. The breathing device according to claim 4, characterized in that, The elastic element is used to release the accumulated elastic potential energy to drive the flap to rotate in the second direction, so that the two-cavity communication channel switches from the conducting state to the blocking state.

7. The breathing device according to claim 4, characterized in that, Also includes: A gas sensor is disposed on the outside of the mouth and nose mask to detect the concentration of toxic and harmful gases in the environment.

8. The breathing device according to claim 7, characterized in that, Also includes: An audible and visual alarm is also provided on the outside of the mouth and nose mask, and is used to issue an audible alarm signal and a visual alarm signal when the gas sensor detects that the concentration of toxic and harmful gas exceeds a first preset threshold.

9. The breathing device according to claim 8, characterized in that, Also includes: A power module, integrated on the end cover of the mask, is used to supply power to the electromagnetic drive, the gas sensor, and the audible and visual alarm.

10. The breathing device according to claim 1, characterized in that, Also includes: An oxygen delivery tube, one end of which is connected to the oxygen supply unit, and the other end of which is detachably connected to the compressed oxygen chamber.

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