An air respirator self-rescue device

Abstract

The utility model discloses an air respirator mutual aid device, including gas supply mechanism and external connection mechanism. Gas supply mechanism includes gas cylinder, breathing mask and breather pipe, the breather pipe intercommunication gas cylinder with breathing mask, external connection mechanism includes connecting valve and external connection pipe, connecting valve sets up on breather pipe one end connecting gas cylinder, the other end connects breathing mask, connecting valve still is equipped with quick -operation interface, external connection pipe both ends are equipped with with quick -operation interface matching quick -joint, external connection pipe is used for connecting another set of air respirator and realizes for its gas supply purpose. The air respirator mutual aid device sets up the connecting valve with quick -operation interface on breather pipeline. The rescuer only needs to butt joint both connecting valves with quick -operation interface at external connection pipe both ends, can establish shared gas path, whole course does not need to dismantle the mask of the rescued person or interrupt gas supply, can guarantee the continuity of gas supply simultaneously, improves the rescue efficiency and safety.

Description

Technical Field

[0001] This utility model relates to the field of fire protection technology, and in particular to an air respirator rescue device. Background Technology

[0002] Self-contained breathing apparatus (SCBA) is a critical personal protective equipment in fields such as firefighting, chemical rescue, and mine rescue, used to provide safe breathing in hazardous environments. During emergency rescues, when the rescued person's SCBA experiences insufficient air supply or malfunction, rescuers typically need to share an air source through a third-party rescue method. Traditional methods mainly employ two approaches: one is connecting an external air source via a bypass port on the mask, and the other is directly disconnecting the rescued person's air supply line and connecting it to the rescuer's air cylinder. However, both methods have significant drawbacks: the mask bypass port requires interrupting the existing air supply system, potentially leading to temporary oxygen deprivation for the rescued person; and disconnecting the line is not only complex but also prone to air supply failure due to mismatched connections or poor seals. Furthermore, in toxic and hazardous environments, any interruption of air supply can pose a fatal threat to the trapped person. Therefore, existing technologies struggle to achieve rapid and reliable third-party rescue while ensuring continuous air supply, necessitating a solution that allows for uninterrupted breathing, is easy to operate, and has strong compatibility. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes an air respirator rescue device. The rescuer only needs to quickly connect the two ends of the external tube to the connecting valves of both parties to establish a shared airway. The entire process does not require disassembling the rescued person's mask or interrupting the air supply, which can improve rescue efficiency and safety while ensuring continuous air supply.

[0004] The technical solution adopted by this utility model to solve its technical problem is:

[0005] An air respirator rescue device, comprising

[0006] A gas supply mechanism includes a gas cylinder, a breathing mask, and a ventilation tube, wherein the ventilation tube connects the gas cylinder and the breathing mask.

[0007] The external connection mechanism includes a connecting valve and an external pipe. The connecting valve is located on the ventilation pipe, with one end connected to the air supply cylinder and the other end connected to the breathing mask. The connecting valve is also provided with a quick-connect interface. The external pipe is provided with quick connectors at both ends that match the quick-connect interface. The external pipe is used to connect to another air respirator to supply air to it.

[0008] An air respirator rescue device according to an embodiment of this utility model has at least the following beneficial effects: The device features a connecting valve with a quick-connect interface on the ventilation pipeline, coupled with a dedicated external connecting pipe, allowing the rescuer to establish a shared airway without disassembling any breathing interface of the rescued person. This fundamentally avoids the air supply interruption problem caused by pipeline disassembly in traditional rescue methods. The quick-connect interface of the connecting valve and the quick-connect fitting of the external connecting pipe adopt a standardized matching design, ensuring compatibility between different devices and significantly improving rescue efficiency. Simultaneously, the device retains the integrity of the original air supply pipeline, ensuring a stable air supply to the rescued person from the start to the end of the rescue, making it particularly suitable for emergency rescue in toxic and hazardous environments. The overall structure is simple and reliable, and the operation is convenient, effectively solving the safety hazards and operational complexity problems of traditional rescue methods.

[0009] According to some embodiments of this utility model, the connecting valve is a three-way structure, with a first interface, a second interface and the quick interface, and the air pipe includes a first air pipe connecting the gas supply cylinder to the first interface and a second air pipe connecting the second interface to the breathing mask.

[0010] The advantages are: the three-way connection valve enables the diversion and merging of air paths, ensuring that the main air supply channel is not affected, while providing a dedicated interface for external air supply, with a compact structure and smooth airflow.

[0011] According to some embodiments of the present invention, the first interface and the second interface are female interfaces, the first air tube is provided with a first male interface connected to the first interface, and the second air tube is provided with a second male interface connected to the second interface.

[0012] The advantages are: the standardized male and female interface design makes the pipeline connection more reliable, avoids the risk of gas leakage, and facilitates quick disassembly and maintenance.

[0013] According to some embodiments of this utility model, the quick interface is a female interface and the quick connector is a male interface.

[0014] The advantages are: the quick-connect interface uses a male-female mating method, which ensures the stability and airtightness of the connection, reduces operational errors during the rescue process, and improves the success rate of the rescue.

[0015] According to some embodiments of this utility model, the connecting valve is Y-shaped.

[0016] The benefits are that the Y-shaped structure optimizes airflow distribution, reduces pressure loss, and makes the overall layout more reasonable, making it easier to carry and operate.

[0017] According to some embodiments of the present invention, the gas supply cylinder is provided with a first pressure control valve.

[0018] The advantage is that the first pressure control valve on the gas cylinder can stabilize the output gas pressure, prevent sudden changes in gas pressure from causing harm to the user, and ensure safe and reliable gas supply.

[0019] According to some embodiments of the present invention, the breathing mask is provided with a second pressure regulating valve.

[0020] The advantage is that the second pressure regulating valve on the breathing mask can adjust the airflow according to the user's needs, improving comfort and avoiding excessive or insufficient breathing resistance.

[0021] According to some embodiments of this utility model, a third pressure regulating valve is provided on the outer pipe.

[0022] The advantage is that the third pressure regulating valve on the external tube can independently control the air pressure of the shared airway, ensuring that the person being rescued receives appropriate respiratory support and avoiding pressure imbalance.

[0023] According to some embodiments of this utility model, the gas supply cylinder is provided with a carrying strap.

[0024] The advantage is that the gas cylinder's strap makes it easier to carry, reduces the burden on the user, and is especially suitable for long-term rescue operations.

[0025] According to some embodiments of this utility model, the outer connecting pipe is a high-pressure hose.

[0026] The advantage is that using a high-pressure hose as the external connection ensures the pressure resistance of the air circuit and also provides good flexibility, making it easy to use in complex environments.

[0027] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0028] To more clearly illustrate the technical solutions of the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of an embodiment of the present utility model;

[0030] Figure 2 for Figure 1 A schematic diagram of the decomposition process;

[0031] Figure 3 for Figure 1A diagram illustrating the process in operation.

[0032] Reference numerals: Gas cylinder 100, breathing mask 110, air tube 120, connecting valve 130, external tube 140, quick connector 150, quick coupling 160, first interface 170, second interface 180, first air tube 190, second air tube 200, first male interface 210, second male interface 220, first pressure control valve 230, second pressure regulating valve 240, third pressure regulating valve 250, shoulder strap 260. Detailed Implementation

[0033] The embodiments of this utility model 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 utility model, and should not be construed as limiting this utility model.

[0034] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional 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.

[0035] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" and "second" are mentioned, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the order of the indicated technical features.

[0036] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation, connection, and linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0037] The following is for reference. Figures 1-3 A self-rescue device for an air respirator is described in detail with reference to a specific embodiment. It is to be understood that the following description is merely illustrative and not intended to limit the scope of the invention.

[0038] like Figure 1 As shown, the device mainly consists of an air supply mechanism and an external connection mechanism. The air supply mechanism includes an air cylinder 100, a breathing mask 110, and a ventilation tube 120 connecting the two, forming a basic respiratory protection system. The core components of the external connection mechanism are a connecting valve 130 and a matching external connecting tube 140 located on the ventilation tube 120. The connecting valve 130 adopts a three-way structure design, with a first interface 170 connecting the air cylinder 100, a second interface 180 connecting the breathing mask 110, and a quick-connect interface 150 for rescue. The ventilation tube 120 includes a first air tube 190 connecting the air cylinder 100 to the first interface 170, and a second air tube 200 connecting the second interface 180 to the breathing mask 110. The external connecting tube 140 has quick connectors 160 at both ends that match the quick-connect interface 150. The external connecting tube 140 is used to connect to another air respirator to supply air to it. This design allows for the expansion of additional air supply channels at any time while maintaining the normal operation of the original air supply system.

[0039] Specifically, such as Figure 2 As shown, the connecting valve 130 preferably adopts a Y-shaped structure. This shape not only facilitates the rational distribution of airflow but also minimizes pressure loss. Each interface uses a standardized male-female interface design. The first interface 170 and the second interface 180 are female interfaces, respectively mating and connecting to the first male interface 210 and the second male interface 220 of the first air pipe 190 and the second air pipe 200. The quick-connect interface 150 also adopts a female interface design, quickly connecting to the male connectors at both ends of the external pipe 140. This standardized interface design ensures the reliability and airtightness of the connection while facilitating quick disassembly and maintenance.

[0040] It should be noted that the gas cylinder 100 is equipped with a first pressure control valve 230 to stabilize the output air pressure and prevent sudden pressure changes from causing harm to the user. The breathing mask 110 is equipped with a second pressure regulating valve 240, which can adjust the airflow according to the user's breathing needs, improving wearing comfort. The external tube 140 is made of a high-pressure resistant flexible hose, which ensures both the pressure resistance of the airway and good flexibility, and is equipped with a third pressure regulating valve 250, which can independently adjust the air pressure of the shared airway to ensure that the rescued person receives appropriate breathing support. The carrying strap 260 on the gas cylinder 100 makes the entire device easy to carry, especially suitable for use in long-term rescue operations.

[0041] In practical use, such as Figure 3As shown, when rescue is needed, the rescuer simply connects the quick connectors 160 at both ends of the external pipe 140 to the quick interfaces 150 of the two devices to establish a shared airway. The entire process requires no disassembly of any breathing ports on the person being rescued, ensuring a continuous air supply. When not in use, the external pipe 140 can be retracted or secured to the fire suit. This design is particularly suitable for emergency rescues in toxic and hazardous environments, effectively solving problems such as air supply interruption and complex operation inherent in traditional rescue methods. The entire device has a simple and reliable structure, is easy to operate, and greatly improves rescue efficiency and safety.

[0042] In the description of this specification, references to terms such as "an embodiment," "some embodiments," "illustrative embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0043] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A self-rescue device for an air respirator, characterized in that, include: The gas supply mechanism includes a gas cylinder (100), a breathing mask (110), and a ventilation tube (120), wherein the ventilation tube (120) connects the gas cylinder (100) and the breathing mask (110). The external connection mechanism includes a connecting valve (130) and an external pipe (140). The connecting valve (130) is located on the ventilation pipe (120), with one end connected to the air supply cylinder (100) and the other end connected to the breathing mask (110). The connecting valve (130) is also provided with a quick connector (150). The external pipe (140) is provided with quick connectors (160) at both ends that match the quick connector (150). The external pipe (140) is used to connect to another air respirator to supply air to it.

2. The self-rescue device for an air respirator according to claim 1, characterized in that, The connecting valve (130) is a three-way structure, with a first interface (170), a second interface (180) and the quick interface (150). The ventilation tube (120) includes a first air tube (190) connecting the gas supply cylinder (100) to the first interface (170) and a second air tube (200) connecting the second interface (180) to the breathing mask (110).

3. The self-rescue device for an air respirator according to claim 2, characterized in that, The first interface (170) and the second interface (180) are female interfaces. The first trachea (190) is provided with a first male interface (210) connected to the first interface (170), and the second trachea (200) is provided with a second male interface (220) connected to the second interface (180).

4. The self-rescue device for an air respirator according to claim 2, characterized in that, The quick interface (150) is a female interface, and the quick connector (160) is a male interface.

5. The self-rescue device for an air respirator according to claim 1, characterized in that, The connecting valve (130) is Y-shaped.

6. The self-rescue device for an air respirator according to claim 1, characterized in that, The gas cylinder (100) is equipped with a first pressure control valve (230).

7. The self-rescue device for an air respirator according to claim 1, characterized in that, The breathing mask (110) is equipped with a second pressure regulating valve (240).

8. The self-rescue device for an air respirator according to claim 1, characterized in that, The external pipe (140) is equipped with a third pressure regulating valve (250).

9. The self-rescue device for an air respirator according to claim 1, characterized in that, The gas cylinder (100) is equipped with a shoulder strap (260).

10. The self-rescue device for an air respirator according to claim 1, characterized in that, The external connector (140) is a high-pressure hose.

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