A respirator

Abstract

The utility model discloses a respirator belongs to emergency rescue field, including the mask and the shell of the sleeve setting in the mask outside, the one end of mask is connected with breathing pipe, folding air bag, medicine jar in proper order, and the one end of folding air bag is close to breathing pipe and is provided with the breathing valve piece box that links to each other with breathing pipe, and the one end of shell is away from mask and is outwardly convex with the corrugated silica gel spare, and the inside fixed of corrugated silica gel spare is provided with the microphone that links to each other with mask, and this respirator is equipped with microphone, and simple to install, convenient to use, when the user holds up the mask with hand, medicine jar is under the gravity effect and falls down, and pulls folding air bag and props open down simultaneously, at this time, folding air bag naturally props open, fills the air of certain amount, can solve the problem that the air amount is small in the early stage of respirator, and the structure of folding air bag can replace oxygen candle, and the cost is low, and the function is reliable practical, and the assembly technology of medicine jar is simple and reliable, and the consumable only has oxygen reagent, and the production and use cost are low.

Description

Technical Field

[0001] This utility model belongs to the field of emergency rescue, and more specifically, relates to a respirator. Background Technology

[0002] Self-generating oxygen breathing apparatus can generate oxygen through a chemical reaction to meet breathing needs and is widely used in emergency rescue.

[0003] Currently available products have imperfect structures. For example, the masks lack microphones, or the microphones have poor sound transmission. The airbag structure is simple, requiring users to exhale additional air into the breathing circuit to inflate the airbag when they first start using the product. An oxygen candle is used to provide the initial inflation gas for the airbag. For similar products, such as mining self-rescue devices, users need extensive training to become proficient in wearing and using them, which is a complex and time-consuming process. At the same time, the internal structure of the medicine canister is simple, the assembly process is complex, and many components lack modular design or a consumable replacement approach, resulting in high operating costs. Utility Model Content

[0004] The main objective of this invention is to provide a respirator to solve the problems mentioned in the background art and improve product performance.

[0005] According to a first aspect of the present invention, a respirator is provided, comprising a face mask and a housing fitted over the face mask. One end of the face mask is fixedly connected to a breathing tube via a quick-release connector, and the other end of the breathing tube is connected to a folding air bag. A medicine container is connected to the end of the folding air bag away from the breathing tube. A breathing valve box communicating with the breathing tube is provided at the end of the folding air bag near the breathing tube. A corrugated silicone element protrudes outward at the end of the housing away from the face mask, and a microphone communicating with the face mask is fixedly disposed inside the corrugated silicone element.

[0006] In a specific embodiment of this utility model, the medicine container includes a container body and a container lid threadedly connected to the container body, and a sealing ring is provided at the connection between the container body and the container lid.

[0007] In a specific embodiment of this utility model, the tank body is provided with an open layer, a main filling layer and a secondary filling layer from the inside out, and a perforated mesh is provided between the open layer, the main filling layer and the secondary filling layer.

[0008] In a specific embodiment of this utility model, the open layer is configured as a gas entry area, the main filling layer is configured as an oxygen-generating agent, such as a potassium superoxide placement area, and the secondary filling layer is configured as a hollow area or a carbon dioxide absorbent such as calcium hydroxide or lithium hydroxide placement area.

[0009] In a specific embodiment of this utility model, the folding airbag is provided with a folding line in the middle so that the middle part of the folding airbag can be contracted and folded inward.

[0010] In a specific embodiment of this utility model, the folded airbag has an internal cavity, and a flexible tube is provided inside the cavity. The two ends of the flexible tube are respectively connected to the medicine canister and the breathing valve plate box.

[0011] In a specific embodiment of this utility model, a first metal wire mesh is fixedly installed inside both the breathing tube and the flexible tube.

[0012] In a specific embodiment of this utility model, a sponge layer is provided at both the upper and lower ends of the breathing valve box, a metal wire mesh layer is provided between the two sponge layers, and an exhaust valve is provided at the end of the breathing valve box near the breathing tube.

[0013] In a specific embodiment of this utility model, at least one breathing valve is provided at the bottom of the inner side of the breathing valve box, and the breathing valve is located at the connection between the breathing valve box and the folded airbag.

[0014] In a specific embodiment of this utility model, one end of the microphone is disposed inside the corrugated silicone part, the other end of the microphone is threadedly connected to the mask, one end of the quick-release connector is threadedly connected to the mask, and the other end of the quick-release connector is inserted into the breathing tube.

[0015] One of the above-described technical solutions of this utility model has at least one of the following advantages or beneficial effects: In some embodiments of this utility model, the microphone of the respirator is located inside a corrugated silicone component, which protrudes outward to form a converging ring, concentrating the sound. In noisy environments, the converging ring can be placed close to a walkie-talkie or microphone to form a sealing effect, improving the accuracy of voice transmission in noisy environments.

[0016] The respirator of this invention features four cooling components: a metal wire roll inside the external breathing tube, a sponge-metal mesh layer in the breathing valve housing, a metal wire roll inside the internal breathing tube, and a cooling and heat-insulating sleeve for the oxygen-generating canister. Exhaled gas is cooled through these four points in the breathing circuit, achieving excellent cooling. The gas exhaust valve on the breathing valve housing, located near the front of the breathing circuit, is a pre-exhaust valve. Even in later stages of use, when the airbag is full of oxygen-rich gas, depressurization after exhalation will preferentially expel the high-carbon dioxide gas, preventing the expulsion of the oxygen-rich gas in the rear airbag. This design avoids waste and effectively increases the product's protection time. When the folded airbag is first opened and in its natural state, the rigidity of the vertically pressed folds during fabric bonding maintains a certain level of three-dimensional support and resilience, preventing the flat airbag from easily collapsing. It also helps reduce inhalation resistance. When the user attaches the medicine canister to the airbag, the airbag expands downwards under the weight of the canister, allowing the folded airbag to naturally open and fill with a certain amount of air. This solves the problem of insufficient air volume in the initial stages of respirator use. The folded airbag structure can directly replace oxygen candles, and it is low-cost, reliable, and practical. The canister assembly process is simple and reliable, with low manufacturing costs.

[0017] The respirator in some examples of this utility model adopts a modular optimized design, and the basic components can be quickly disassembled or assembled with threads. During use, it is relatively simple and convenient to replace damaged parts. Other components can be reused after each use, following the recommended airtightness test. If there is no damage or leakage, they can be reused. In particular, the medicine canister adopts a threaded sealing structure and process, which eliminates the need for expensive canister sealing machines and molds during production. Furthermore, the oxygen generation tank can be recycled by the manufacturer and refilled with medicine, reducing usage costs and saving materials, thus improving economic benefits for users and society. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments; Figure 1 This is a schematic diagram of the respirator in one embodiment of the present invention; Figure 2 This is a cross-sectional view of the respirator in the first embodiment of this utility model; Figure 3 This is a cross-sectional view of the respirator in the second embodiment of this utility model. Detailed Implementation

[0019] The embodiments of this utility model are described in detail below. Examples of the 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.

[0020] 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.

[0021] 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" or "second" is used in the description, 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 implicitly indicating the order of the indicated technical features.

[0022] 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. Therefore, a feature defined as "first" and "second" may explicitly or implicitly include one or more features.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the term "connection" should be interpreted broadly. For example, it can be a fixed connection or a movable connection, a detachable connection or a non-detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection or a connection that can communicate with each other; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two elements, an indirect connection, or an interaction between two elements.

[0024] The following disclosure provides many different implementation methods or examples for different solutions to implement this utility model.

[0025] Reference Figures 1 to 3As shown, a respirator is provided, including a mask 1 and an outer shell 2 fitted over the mask 1. One end of the mask 1 is fixedly connected to a breathing tube 6 via a quick-release connector 4. The other end of the breathing tube 6 is connected to a folding air bag 8. The end of the folding air bag 8 away from the breathing tube 6 is connected to a medicine canister 9. The end of the folding air bag 8 near the breathing tube 6 is provided with a breathing valve disc box 7 that communicates with the breathing tube 6. The end of the outer shell 2 away from the mask 1 has a corrugated silicone part 3 protruding outward. A microphone 5 that communicates with the mask 1 is fixedly installed inside the corrugated silicone part 3.

[0026] In this embodiment, the outer shell 2, at the end furthest from the mask 1, has a corrugated silicone part 3 protruding outwards, providing the user with a point of leverage to easily hold and adjust the position of the mask 1. Simultaneously, the microphone 5 is housed within the corrugated silicone part 3, which, due to its outward protrusion, partially forms an amplifier, enhancing the effect of the microphone 5. If the microphone is placed close to an object, it can also isolate external noise. The user's exhaled air is delivered through the mask 1 to the breathing tube 6, and then through the breathing valve box 7. At this point, the breathing valve box 7 absorbs moisture from the exhaled air and also removes heat from the air, achieving a cooling effect. The folding airbag 8 has a three-dimensional structure. In its natural state, it can naturally support itself, effectively improving the respirator's ability to draw air into a vacuum. With this layout, when the user unpacks the mask 1 and picks up the medicine canister 9, gravity causes it to fall, simultaneously pulling the folding airbag 8 downwards and opening it. At this point, the folding airbag 8 naturally expands, filling with a certain amount of air, solving the problem of insufficient air volume in the initial stage of the respirator. This folding airbag 8 can directly replace the oxygen candle, and is low-cost, reliable, and practical. The medicine canister 9, located below the folding airbag 8, has three sections. The size of each section can be adjusted according to different user needs, thus adjusting the protection time of the product. The assembly process is simple and reliable, and the manufacturing cost is low.

[0027] Preferably, the outer wall of the corrugated silicone part 3 has a wavy structure, with the outer wall bulging outwards and the inner wall recessed to hold the microphone 5 in place. The microphone 5 has several through holes to increase the sound transmission effect.

[0028] In one embodiment of this utility model, the medicine container 9 includes a container body 91 and a container lid 92 that is threadedly connected to the container body 91. A sealing ring 93 is provided at the connection between the container body 91 and the container lid 92. The container body 91 and the container lid 92 are connected by a thread, which makes the assembly process simple and reliable. At the same time, an annular sealing ring 93 is provided at the bottom of the container body 91, so that the connection between the container body 91 and the container lid 92 plays a sealing role.

[0029] Furthermore, the tank body 91 has an open layer 94, a main filling layer 95, and a secondary filling layer 96 arranged sequentially from the inside to the outside. A perforated mesh is provided between the open layer 94, the main filling layer 95, and the secondary filling layer 96. At the same time, the size of each layer can be adjusted according to different user applications to adjust the product's protection time.

[0030] Preferably, the open layer 94 is set as a gas entry area, the main filling layer 95 is set as an oxygen-generating agent placement area, and the secondary filling layer 96 is set as a hollow area or a carbon dioxide absorbent placement area. The open layer 94 is the gas entry area, where the gas enters vertically and then disperses and flows around, which is conducive to slowing the gas flow rate and increasing the contact time between the gas and the drug. The main filling layer 95 contains potassium superoxide and has a relatively large space. The secondary filling layer 96 can be set as a hollow area or a carbon dioxide absorbent placement area. When the application is a work-type product with a large breathing volume, this layer can contain carbon dioxide absorbents such as calcium hydroxide and lithium hydroxide to absorb excess carbon dioxide. When the application is an escape-type product, this layer can be hollowed out to serve as a space for gas flow.

[0031] In one embodiment of this utility model, the folding airbag 8 is provided with a folding line 82 in the middle so that the middle part of the folding airbag 8 can be folded inward. In its natural state, the folding airbag 8 can be naturally supported, which can effectively improve the vacuum situation of the respirator product. At the same time, the two ends of the folding airbag 8 can be folded towards the middle for easy storage.

[0032] Furthermore, the folded airbag 8 has a cavity 81 inside, and a flexible tube 83 is installed inside the cavity 81. The two ends of the flexible tube 83 are connected to the medicine canister 9 and the breathing valve plate box 7, respectively. The flexible tube 83 is an air outlet channel. When the flexible tube 83 is installed, two breathing valve plates are installed to form a circulating breathing circuit. The flexible tube 83 and the breathing tube 6 are made of the same material, and both have a corrugated structure on the outside.

[0033] In one embodiment of this invention, a sponge layer 71 is provided at both the top and bottom ends of the breathing valve disc box 7, and a metal wire mesh layer 72 is provided between the two sponge layers 71. Three layers of material are added in the middle of the breathing valve disc box 7 for cooling: the top and bottom layers are sponge, and the middle layer is metal wire mesh. The sponge absorbs water, specifically the moisture exhaled by the human body, while the metal wire absorbs heat, absorbing the temperature of the reacted gas. Simultaneously, the metal wire is cooled by the moisture in the sponge, thus achieving a cyclical cooling effect.

[0034] Preferably, the outer shell of the breathing valve plate box 7 is made of a transparent structure so that its internal condition can be observed. If the sponge is not moist enough, water can be injected into the sponge layer 71 through a syringe to achieve a cooling effect.

[0035] In one embodiment of this utility model, at least one breathing valve 73 is provided at the bottom of the breathing valve box 7. The breathing valve 73 is located at the connection between the breathing valve box 7 and the folded airbag 8. The breathing box can be replaced with accessories according to the user's actual situation to switch the breathing circuit and change the product performance. When two breathing valves 73 are installed, such as Figure 2 As shown, one is an exhaust valve and the other is an intake valve. The exhaust valve is connected to the flexible pipe 83 to form an exhaust channel, which is a circulating breathing circuit. This circuit has a slow response time but a long service life, making it suitable for medium-intensity work. When one breathing valve 73 is installed, as... Figure 3 As shown, the breathing valve 73 is an exhaust valve and belongs to a reciprocating breathing circuit. This circuit has a fast response and a relatively short service time, making it suitable for high-intensity work conditions.

[0036] In one embodiment of this utility model, the corrugated silicone part 3 is provided with color markings, which makes the mask 1 part more conspicuous and easier to find at the disaster site. The color markings are generally yellow.

[0037] In one embodiment of this utility model, one end of the microphone 5 is disposed inside the corrugated silicone part 3, and the other end of the microphone 5 is threadedly connected to the mask 1. One end of the quick-release connector 4 is threadedly connected to the mask 1, and the other end of the quick-release connector 4 is inserted into the breathing tube 6, which facilitates the disassembly and assembly of the microphone 5 and the breathing tube 6 and makes replacement convenient. One end of the corrugated silicone part 3 is snapped into the microphone 5, and the corrugated silicone part 3 can also be disassembled and replaced, which facilitates maintenance.

[0038] In one embodiment of this utility model, a first metal wire mesh 10 is fixedly installed inside both the breathing tube 6 and the flexible tube 83. The function of the first metal wire mesh 10 is the same as that of the metal wire mesh layer 72, forming multi-position cooling.

[0039] In one embodiment of this utility model, an exhaust valve 74 is provided on the end of the breathing valve disc box 7 near the breathing tube 6. The exhaust valve 74 is located on the side away from the flexible tube 83. The function of the exhaust valve 74 is to release pressure by venting when the internal pressure of the airway is too high. At the same time, the exhaust valve 74 is located in this position, which can play the role of pre-venting, that is, the carbon dioxide exhaled by the human body is expelled. If the exhaust valve 74 is located on the folding air bag 8, the oxygen after the reaction is expelled, which is wasteful.

[0040] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A respirator comprising a face mask (1) and a shell (2) fitted over the face mask (1), characterized in that, One end of the mask (1) is fixedly connected to a breathing tube (6) via a quick-release connector (4). The other end of the breathing tube (6) is connected to a folded airbag (8). The end of the folded airbag (8) away from the breathing tube (6) is connected to a medicine canister (9). The end of the folded airbag (8) near the breathing tube (6) is provided with a breathing valve box (7) that communicates with the breathing tube (6). The outer shell (2) away from the mask (1) has a corrugated silicone part (3) protruding outward. A microphone (5) that communicates with the mask (1) is fixedly installed inside the corrugated silicone part (3).

2. The respirator according to claim 1, characterized in that, The medicine container (9) includes a container body (91) and a container cover (92) threadedly connected to the container body (91). A sealing ring (93) is provided at the connection between the container body (91) and the container cover (92).

3. The respirator according to claim 2, characterized in that, The tank body (91) has an open layer (94), a main filling layer (95) and a secondary filling layer (96) arranged sequentially from the inside to the outside. A perforated mesh is provided between the open layer (94), the main filling layer (95) and the secondary filling layer (96).

4. The respirator according to claim 3, characterized in that, The open layer (94) is set as a gas entry area, the main filling layer (95) is set as an oxygen-generating agent placement area, and the secondary filling layer (96) is set as a hollow area or a carbon dioxide absorbent placement area.

5. The respirator according to claim 1, characterized in that, The folding airbag (8) has a folding line (82) in the middle so that the middle part of the folding airbag (8) can be contracted and folded inward.

6. The respirator according to claim 5, characterized in that, The folded airbag (8) has a cavity (81) inside, and a flexible tube (83) is provided inside the cavity (81). The two ends of the flexible tube (83) are respectively connected to the medicine canister (9) and the breathing valve box (7).

7. The respirator according to claim 6, characterized in that, Both the breathing tube (6) and the flexible tube (83) are fixedly provided with a first metal wire mesh (10).

8. The respirator according to claim 1, characterized in that, The breathing valve box (7) has a sponge layer (71) at both the top and bottom ends, and a metal wire mesh layer (72) is provided between the two sponge layers (71). An exhaust valve (74) is provided on the end of the breathing valve box (7) near the breathing tube (6).

9. The respirator according to claim 1, characterized in that, At least one breathing valve (73) is provided at the bottom of the inner part of the breathing valve box (7), and the breathing valve (73) is located at the connection between the breathing valve box (7) and the folded airbag (8).

10. The respirator according to claim 1, characterized in that, One end of the microphone (5) is located inside the corrugated silicone part (3), and the other end of the microphone (5) is threaded to the mask (1). One end of the quick-release connector (4) is threaded to the mask (1), and the other end of the quick-release connector (4) is inserted into the breathing tube (6).

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