一种氧气浓度控制装置

Abstract

本实用新型公开了一种氧气浓度控制装置，涉及低氧训练氧气控制技术领域。本实用新型包括主体，主体的侧面设置有控制模块，主体的内部设置有供氧模块和低氧模块，主体的侧面对称开设有供氧腔且供氧腔贯穿主体至供氧模块出气口处，供氧腔的壁面开设有引导腔且引导腔贯穿主体至低氧模块出气口处。本实用新型实现动态响应呼吸异常，通过检测机构中活动片与第二弹簧的配合，实时感知供氧腔内气压变化。当使用者呼吸频率异常时，气压推动活动块脱离卡槽，触发滤芯下移，带动辅助机构的堵块堵塞引导腔，自动切断二氧化碳供应，仅保留氧气输出，避免低氧环境下的窒息风险。该结构实现了无需电力传感器的机械式应急保护，响应迅速且可靠性高。

Claims

1. An oxygen concentration control device, characterized by: The system includes a main body (1), a control module (11) is provided on the side of the main body (1), an oxygen supply module (12) and a low oxygen module (14) are provided inside the main body (1), an oxygen supply chamber (13) is symmetrically opened on the side of the main body (1) and the oxygen supply chamber (13) penetrates the main body (1) to the outlet of the oxygen supply module (12), a guide chamber (15) is opened on the wall of the oxygen supply chamber (13) and the guide chamber (15) penetrates the main body (1) to the outlet of the low oxygen module (14), a connection port (16) is fixedly installed on the upper side of the main body (1) corresponding to the position of the oxygen supply chamber (13), a filter mechanism (2) that can filter and purify the gas is provided inside the oxygen supply chamber (13), a detection mechanism (3) that can be closed in one direction is provided inside the oxygen supply chamber (13) above the filter mechanism (2), and an auxiliary mechanism (4) that can block the supply of carbon dioxide is provided inside the guide chamber (15) corresponding to the position of the filter mechanism (2).

2. The oxygen concentration control device according to claim 1, characterized by: The filtration mechanism (2) includes a filter element (21) movably installed inside the oxygen supply chamber (13). The filter element (21) is a cylindrical core made of highly absorbent carbon material. A first spring (22) is fixedly installed on the lower side of the filter element (21), and the other end of the first spring (22) is fixedly connected to the wall of the oxygen supply chamber (13). A matching groove (23) is opened on the side of the filter element (21) corresponding to the guide cavity (15). A slot (24) is opened on the upper side of the side of the filter element (21). A reset rope (25) is fixedly installed on the upper side of the slot (24), and the reset rope (25) extends to the inside of the connection port (16).

3. An oxygen concentration control device according to claim 2, characterised in that: The wall of the oxygen supply chamber (13) is provided with a movable cavity (26) corresponding to the slot (24). A movable block (27) is movably installed inside the movable cavity (26) and the movable block (27) is engaged inside the slot (24). A constraint rod (28) penetrating the movable block (27) is fixedly installed on the wall of the movable cavity (26). A first support cylinder (29) is fixedly connected between the side of the movable block (27) and the wall of the movable cavity (26) and the first support cylinder (29) is movably sleeved on the side of the constraint rod (28).

4. The oxygen concentration control device of claim 1, wherein: The detection mechanism (3) includes a fixed block (31) fixedly installed on the wall of the oxygen supply chamber (13), a reset rope (25) passing through the center of the fixed block (31), an exhaust groove (32) equidistantly opened on the side of the fixed block (31), a movable piece (33) movably sleeved on the side of the fixed block (31) and the movable piece (33) covering the exhaust groove (32), a second spring (34) fixedly sleeved between the lower side of the movable piece (33) and the side of the fixed block (31), and the second spring (34) movably sleeved on the side of the fixed block (31).

5. An oxygen concentration control device according to claim 4, characterised in that: The movable piece (33) has slots (35) arranged in a circular array at equal intervals on its side. A limit rod (36) is movably installed inside the slot (35) and the limit rod (36) is fixedly installed on the upper side of the fixed block (31).

6. The oxygen concentration control device of claim 1, wherein: The auxiliary mechanism (4) includes an installation block (41) fixedly installed on the wall of the oxygen supply chamber (13). The side of the installation block (41) is provided with connecting grooves (42) that pass through it at equal intervals. A movable rod (43) is movably installed at the center of the installation block (41). A blocking block (46) is fixedly installed on the side of the movable rod (43) and the blocking block (46) is movably set inside the mating groove (23). A detection block (44) is fixedly installed through the side of the installation block (41) away from the blocking block (46). A second support cylinder (45) is fixedly connected between the detection block (44) and the side of the movable rod (43) and the second support cylinder (45) is movably sleeved on the side of the movable rod (43).

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