Gas detection system for oxygen cabin

Abstract

The utility model discloses a gas detection system for an oxygen cabin, which relates to the technical field of oxygen cabin gas environment control, and comprises a box body, a personnel access is arranged on the box body, a door plate is hinged at the personnel access, a sealing strip matched with the personnel access is arranged on the door plate, and a door lock is arranged on the door plate. A gas circulation structure is arranged in the box body, and a gas component control assembly is arranged in the box body. The gas circulation structure is arranged to drive gas in the box body to circularly flow, so that diffusion of oxygen and air input into the box body is accelerated, the air flowability around the gas concentration detector is enhanced, and the accuracy degree of detecting gas components in the box body by the gas component control assembly is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of oxygen cabin gas environment control, in particular to a gas detection system for an oxygen cabin. Background Art

[0002] An oxygen chamber is a medical device in which the air pressure and oxygen concentration can be adjusted to help the patient's body tissues absorb oxygen more effectively, thereby speeding up the recovery process. The gas medium acquisition module of the gas detection equipment in traditional oxygen chambers is relatively simple, and the single sensing detection structure is prone to inaccurate alarms. When the gas medium is large, the detection accuracy is low, and the gas concentration in a small local area increases (such as when oxygen is not completely diffused after being introduced), the sensing detection structure is prone to false alarms.

[0003] Based on this, a gas detection system for an oxygen chamber is now provided, which can eliminate the disadvantages of existing devices. Utility Model Content

[0004] The purpose of the present invention is to provide a gas detection system for an oxygen chamber to solve the problems in the background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A gas detection system for an oxygen cabin includes a box body, a personnel entrance and exit provided on the box body, a door panel hinged at the personnel entrance and exit, a sealing strip matching the personnel entrance and exit provided on the door panel, a door lock provided on the door panel, a gas circulation structure provided in the box body, and a gas composition control component provided in the box body.

[0007] On the basis of the above technical solutions, the present invention also provides the following optional technical solutions:

[0008] In an optional solution: the gas circulation structure includes a circulating air duct arranged in the box body, a first partition and a second partition are respectively provided at both ends of the circulating air duct, ventilation holes are densely arranged on the first partition and the second partition, and a circulating fan is provided in the circulating air duct.

[0009] In an optional solution: the gas composition control component includes a controller arranged outside the box, a carbon dioxide concentration detector and an oxygen concentration detector are provided in the circulating air duct, a ventilation module is provided in the box, the carbon dioxide concentration detector is electrically connected to the controller, and the oxygen concentration detector is electrically connected to the controller.

[0010] In an optional solution: the ventilation module includes an oxygen input electric-controlled valve, an air introduction electric-controlled valve and an exhaust unit, the outlet end of the oxygen input electric-controlled valve is connected to the circulating air duct, the inlet end of the oxygen input electric-controlled valve is connected to the oxygen delivery pipeline, the outlet end of the air introduction electric-controlled valve is connected to the circulating air duct, the inlet end of the air introduction electric-controlled valve is connected to the air delivery pipeline, the exhaust unit is installed on the box body, and the oxygen input electric-controlled valve, the air introduction electric-controlled valve and the exhaust unit are all electrically connected to the controller.

[0011] In an optional solution: a plurality of carbon dioxide concentration detectors are provided in the circulating air duct, and a plurality of oxygen concentration detectors are provided in the circulating air duct.

[0012] In an optional solution: the carbon dioxide concentration detector and the oxygen concentration detector are both located at the circulating air inlet of the circulating air duct, the position where the oxygen input electric control valve is connected to the circulating air duct is located at the circulating air outlet of the circulating air duct, and the position where the air intake electric control valve is connected to the circulating air duct is located at the circulating air outlet of the circulating air duct.

[0013] In an optional solution: the door lock includes a fixed seat arranged on the door panel, the fixed seat is located on the inner side of the box body, a slider is provided for sliding inside the fixed seat, one end of the slider is an inclined surface, a locking column is provided on the box body corresponding to the rotation of the slider, a handle is provided for rotation on the fixed seat, the other end of the slider is hinged to one end of the connecting rod, the other end of the connecting rod is hinged to the handle, a reset spring is provided between the slider and the fixed seat, and an external unlocking structure is provided on the door panel.

[0014] In an optional solution: the external unlocking structure includes a sliding rod that slides through the door panel, a sliding column is provided at one end of the sliding rod, a sliding groove matching the sliding column is provided on the handle, the sliding column is slidably set in the sliding groove, a push plate is provided at the other end of the sliding rod, and a gas seal is provided on the door panel at the position where the sliding rod passes through.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] The utility model provides a gas circulation structure to drive the circulation of gas in the box, accelerate the diffusion of oxygen and air input into the box, enhance the air flow around the gas concentration detector, and improve the accuracy of the gas composition control component in detecting the gas composition in the box.

[0017] The utility model arranges multiple carbon dioxide concentration detectors and multiple oxygen concentration detectors in the circulating air duct. Before the controller responds, the controller compares the data of the multiple carbon dioxide concentration detectors and the data of the multiple oxygen concentration detectors. If the data collected by individual gas concentration detectors is abnormal, the data of this group is excluded, thereby effectively improving the accuracy of gas concentration measurement.

[0018] The utility model collects gas concentration data through a carbon dioxide concentration detector and an oxygen concentration detector and transmits it to a controller. The controller is pre-set with the maximum carbon dioxide concentration and the normal range of oxygen concentration. For different situations, the controller is equipped with different response mechanisms. Every time the controller responds according to the gas concentration situation, the action lasts for a specified time, and then the controller responds again according to the real-time gas concentration situation to prevent excessive fluctuations in the gas concentration in the box due to excessive adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic structural diagram of the utility model.

[0020] Figure 2 This is a schematic diagram of the circulating air duct of the utility model.

[0021] Figure 3 This is a schematic diagram of a door panel of the present invention.

[0022] Figure 4 This is a schematic diagram of a door lock of the present utility model.

[0023] Figure 5 For this utility model Figure 4 A partial enlarged view of middle A.

[0024] Notes on the accompanying drawings: 101, box body; 201, circulating air duct; 202, first partition; 203, second partition; 204, ventilation hole; 205, circulating fan; 301, carbon dioxide concentration detector; 302, oxygen concentration detector; 303, oxygen input electric control valve; 304, air intake electric control valve; 305, exhaust unit; 306, controller; 401, personnel entrance and exit; 402, door panel; 403, sealing strip; 404, fixing seat; 405, slider; 406, locking column; 407, handle; 408, connecting rod; 409, return spring; 501, sliding rod; 502, sliding column; 503, sliding groove; 504, push plate. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention is further described in detail below with reference to the accompanying drawings and embodiments.

[0026] In one embodiment, Figure 1-Figure 5As shown, a gas detection system for an oxygen chamber includes a box body 101, a personnel entrance and exit 401 is provided on the box body 101, a door panel 402 is hinged at the personnel entrance and exit 401, a sealing strip 403 matching the personnel entrance and exit 401 is provided on the door panel 402, a door lock is provided on the door panel 402, a gas circulation structure is provided in the box body 101, and a gas composition control component is provided in the box body 101.

[0027] In this embodiment, the gas circulation structure drives the circulation of gas in the box 101, accelerates the diffusion of oxygen and air input into the box 101, enhances the air flow around the gas concentration detector, and improves the accuracy of the gas composition control component in detecting the gas composition in the box 101. The door lock makes the door panel 402 fit with the personnel entrance and exit 401, making it easy to open the door panel 402 from the inside or outside of the box 101, and the sealing strip 403 has an airtight effect.

[0028] In one embodiment, Figure 2 As shown, the gas circulation structure includes a circulating air duct 201 arranged in the box body 101, and a first partition 202 and a second partition 203 are respectively provided at both ends of the circulating air duct 201. The first partition 202 and the second partition 203 are densely provided with ventilation holes 204. A circulating fan 205 is provided in the circulating air duct 201, and the circulating fan 205 drives the air to flow in one direction in the circulating air duct 201. The air in the box body 101 enters the circulating air duct 201 from the first partition 202, and then returns to the box body 101 from the second partition 203, thereby realizing the air flow in the box body 101, accelerating the diffusion of oxygen and air entering the box body 101, and helping to improve the accuracy of gas concentration detection.

[0029] In one embodiment, Figure 1 and Figure 2As shown, the gas composition control component includes a controller 306 arranged outside the box 101, a carbon dioxide concentration detector 301 and an oxygen concentration detector 302 are provided in the circulating air duct 201, a ventilation module is provided in the box 101, the carbon dioxide concentration detector 301 is electrically connected to the controller 306, the oxygen concentration detector 302 is electrically connected to the controller 306, the ventilation module includes an oxygen input electric control valve 303, an air introduction electric control valve 304 and an exhaust unit 305, the outlet end of the oxygen input electric control valve 303 is connected to the circulating air duct 201, the air inlet end of the oxygen input electric control valve 303 is connected to the oxygen delivery pipeline, the outlet end of the air introduction electric control valve 304 is connected to the circulating air duct 201, and the air introduction electric control valve 3 The air inlet end 04 is connected to the air delivery pipeline, and the exhaust unit 305 is installed on the box body 101. The oxygen input electric control valve 303, the air introduction electric control valve 304 and the exhaust unit 305 are all electrically connected to the controller 306. The carbon dioxide concentration detector 301 detects the carbon dioxide concentration of the air passing through the circulating air duct 201, and the oxygen concentration detector 302 detects the oxygen concentration of the air passing through the circulating air duct 201. The gas concentration data collected by the carbon dioxide concentration detector 301 and the oxygen concentration detector 302 are transmitted to the controller 306. The maximum carbon dioxide concentration and the normal oxygen concentration range are pre-set in the controller 306. For different situations, the response mechanism of the controller 306 is as follows:

[0030]

[0031] Each time the controller 306 responds according to the gas concentration, the action continues for a specified time, and then the controller 306 responds again according to the real-time gas concentration to prevent excessive fluctuations in the gas concentration in the box 101 due to over-adjustment. The exhaust unit 305 is used to maintain the internal air pressure of the box 101 at the set value.

[0032] In one embodiment, Figure 2 As shown, a plurality of carbon dioxide concentration detectors 301 are provided in the circulating air duct 201, and a plurality of oxygen concentration detectors 302 are provided in the circulating air duct 201. Before the controller 306 responds, the controller 306 compares the data of the plurality of carbon dioxide concentration detectors 301 and the data of the plurality of oxygen concentration detectors 302. If the data collected by an individual gas concentration detector is abnormal, the data group is excluded, thereby effectively improving the accuracy of the gas concentration measurement.

[0033] In one embodiment, Figure 2As shown, the carbon dioxide concentration detector 301 and the oxygen concentration detector 302 are both located at the circulating air inlet of the circulating air duct 201, the position where the oxygen input electric control valve 303 is connected to the circulating air duct 201 is located at the circulating air outlet of the circulating air duct 201, and the position where the air input electric control valve 304 is connected to the circulating air duct 201 is located at the circulating air outlet of the circulating air duct 201. Oxygen and air are first introduced into the circulating air duct 201, and the circulating fan 205 increases the uniformity of diffusion of the newly introduced air and oxygen to prevent the newly introduced air and oxygen from directly flowing through the gas concentration detector and causing false detection.

[0034] In one embodiment, Figure 3-Figure 5 As shown, the door lock includes a fixed seat 404 set on the door panel 402, the fixed seat 404 is located on the inner side of the box body 101, a slider 405 is slidably provided in the fixed seat 404, one end of the slider 405 is an inclined surface, and a locking column 406 is rotatably provided on the box body 101 corresponding to the slider 405, and a handle 407 is rotatably provided on the fixed seat 404, the other end of the slider 405 is hinged to one end of a connecting rod 408, and the other end of the connecting rod 408 is hinged to the handle 407, a return spring 409 is provided between the slider 405 and the fixed seat 404, and an external unlocking structure is provided on the door panel 402, and the external unlocking structure includes a sliding rod 501 slidably penetrated on the door panel 402, one end of the sliding rod 501 is provided with a sliding column 502, and the handle 407 is provided with a sliding groove 500 matching the sliding column 502. 3. The sliding column 502 is slidably arranged in the sliding groove 503, and a push plate 504 is provided at the other end of the sliding rod 501. A gas seal is provided on the door panel 402 at the position where the sliding rod 501 passes through. The handle 407 is pulled from the inside of the box body 101. The handle 407 drives the slider 405 to slide in the fixed seat 404 through the connecting rod 408, so that the slider 405 is disengaged from the locking column 406, and the door panel 402 is unlocked. At the same time, the handle 407 pulls the door panel 402 through the fixed seat 404, making it convenient for people to open the door panel 402 from the inside of the box body 101. The sliding rod 501 is pushed by the push plate 504. The sliding column 502 on the sliding rod 501 acts on the sliding groove 503, driving the handle 407 to unlock the door panel 402. At the same time, the door panel 402 is opened by the thrust.

[0035] The above embodiment discloses a gas detection system for an oxygen cabin, wherein the circulating fan 205 drives the air to flow in a unidirectional manner in the circulating air duct 201. The air in the box 101 enters the circulating air duct 201 from the first partition 202 and then returns to the box 101 from the second partition 203, thereby realizing the air flow in the box 101 and accelerating the diffusion of oxygen introduced into the box 101, which is beneficial to improving the accuracy of gas concentration detection. The carbon dioxide concentration detector 301 detects the carbon dioxide concentration of the air passing through the circulating air duct 201, and the oxygen concentration detector 302 detects the oxygen concentration of the air passing through the circulating air duct 201. The gas concentration data collected by the carbon dioxide concentration detector 301 and the oxygen concentration detector 302 are transmitted to the controller 306. The controller 306 The maximum value of carbon dioxide and the normal range of oxygen concentration are preset. For different situations, different response mechanisms are set in the controller 306. Every time the controller 306 responds according to the gas concentration, the action lasts for a specified time, and then the controller 306 responds again according to the real-time gas concentration to prevent excessive adjustment from causing excessive fluctuations in the gas concentration in the box 101. The exhaust unit 305 is used to keep the internal air pressure of the box 101 at a set value. Before the controller 306 responds, the controller 306 compares the data of multiple carbon dioxide concentration detectors 301 and the data of multiple oxygen concentration detectors 302. If the data collected by individual gas concentration detectors is abnormal, the group of data is excluded, effectively improving the accuracy of gas concentration measurement.

[0036] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. A gas detection system for an oxygen chamber, comprising a box (101), wherein the box (101) is provided with a personnel entrance (401), wherein a door panel (402) is hingedly connected to the personnel entrance (401), wherein the door panel (402) is provided with a sealing strip (403) matching the personnel entrance (401), and wherein the door panel (402) is provided with a door lock, wherein: A gas circulation structure is provided in the box body (101), and a gas composition control component is provided in the box body (101).

2. A gas detection system for an oxygen chamber according to claim 1, characterized in that: The gas circulation structure comprises a circulation air duct (201) arranged in a box body (101), a first partition (202) and a second partition (203) are respectively provided at both ends of the circulation air duct (201), ventilation holes (204) are densely provided on the first partition (202) and the second partition (203), and a circulation fan (205) is provided in the circulation air duct (201).

3. A gas detection system for an oxygen chamber according to claim 2, characterized in that: The gas composition control assembly comprises a controller (306) arranged outside the box (101), a carbon dioxide concentration detector (301) and an oxygen concentration detector (302) are arranged in the circulating air duct (201), a ventilation module is arranged in the box (101), the carbon dioxide concentration detector (301) is electrically connected to the controller (306), and the oxygen concentration detector (302) is electrically connected to the controller (306).

4. A gas detection system for an oxygen chamber according to claim 3, characterized in that: The ventilation module comprises an oxygen input electric control valve (303), an air introduction electric control valve (304) and an exhaust unit (305); the outlet end of the oxygen input electric control valve (303) is connected to the circulating air duct (201); the inlet end of the oxygen input electric control valve (303) is connected to the oxygen delivery pipeline; the outlet end of the air introduction electric control valve (304) is connected to the circulating air duct (201); the inlet end of the air introduction electric control valve (304) is connected to the air delivery pipeline; the exhaust unit (305) is installed on the box (101); the oxygen input electric control valve (303), the air introduction electric control valve (304) and the exhaust unit (305) are all electrically connected to the controller (306).

5. A gas detection system for an oxygen chamber according to claim 4, characterized in that: A plurality of carbon dioxide concentration detectors (301) are provided in the circulating air duct (201), and a plurality of oxygen concentration detectors (302) are provided in the circulating air duct (201).

6. A gas detection system for an oxygen chamber according to claim 5, characterized in that: The carbon dioxide concentration detector (301) and the oxygen concentration detector (302) are both located at the circulating air inlet of the circulating air duct (201); the position where the oxygen input electric control valve (303) is connected to the circulating air duct (201) is located at the circulating air outlet of the circulating air duct (201); and the position where the air inlet electric control valve (304) is connected to the circulating air duct (201) is located at the circulating air outlet of the circulating air duct (201).

7. A gas detection system for an oxygen chamber according to claim 1, characterized in that: The door lock comprises a fixed seat (404) arranged on a door panel (402), the fixed seat (404) being located inside a box body (101), a slider (405) being slidably arranged inside the fixed seat (404), one end of the slider (405) being an inclined surface, a locking column (406) being rotatably arranged on the box body (101) corresponding to the slider (405), a handle (407) being rotatably arranged on the fixed seat (404), the other end of the slider (405) being hinged to one end of a connecting rod (408), the other end of the connecting rod (408) being hinged to the handle (407), a reset spring (409) being arranged between the slider (405) and the fixed seat (404), and an external unlocking structure being arranged on the door panel (402).

8. A gas detection system for an oxygen chamber according to claim 7, characterized in that: The external unlocking structure includes a sliding rod (501) that is slidably inserted into the door panel (402), a sliding column (502) is provided at one end of the sliding rod (501), a sliding groove (503) that matches the sliding column (502) is provided on the handle (407), the sliding column (502) is slidably arranged in the sliding groove (503), a push plate (504) is provided at the other end of the sliding rod (501), and a gas seal is provided on the door panel (402) at the position where the sliding rod (501) passes through.

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