Multi-incubator gas concentration automatic switching measurement device

Abstract

The application relates to a multi-incubator gas concentration automatic switching measuring device, which comprises a gas pump, a gas concentration detector, a gas pipe and a three-way electromagnetic valve. The gas pump is arranged in the interior of an incubator. One end of the gas pipe is connected with a gas sampling port of the incubator. The gas concentration detection is communicated with the other end of the gas pipe. The incubator is more than two, and is connected with the gas concentration detector through the gas pipe. The gas sampling port of each incubator is provided with a three-way electromagnetic valve. The three-way electromagnetic valve is electrically connected with the gas concentration detector. Only one gas concentration detector can cover the detection of multiple incubators, the high procurement cost of multiple detectors is avoided, the laboratory equipment investment is reduced, the automatic switching of the gas circuit is realized through the electric control of the three-way electromagnetic valve of the detector, manual plugging of the gas pipe is not needed, and the operation time is greatly reduced.

Description

Technical Field

[0001] This application relates to the field of gas detection technology, and in particular to an automatic gas concentration switching measurement device for multiple incubators. Background Technology

[0002] Incubators, by controlling the concentrations of carbon dioxide and oxygen gases, provide suitable environmental conditions for maintaining cell health and normal growth. Accurate and stable gas concentration control within the incubator is crucial for successful cell culture and accurate experimental results. To ensure accurate and stable gas concentration control, an external gas concentration detector is required. Current technology connects the gas concentration detector's inlet to the incubator's gas sampling port for measurement. Since the gas concentration detector has only one inlet or one gas path, only one incubator can be measured at a time. In large laboratories with numerous incubators, this requires a significant amount of time and repetitive testing. Utility Model Content

[0003] To address the problem of repetitive steps in traditional methods of controlling multiple gas concentration detectors, this invention provides a gas concentration self-switching measurement device for multiple incubators, comprising: Air pump, gas concentration detector, air tubing and three-way solenoid valve; The air pump is suitable for installation inside the incubator; One end of the trachea is connected to the gas sampling port of the incubator; The gas concentration detector is connected to the other end of the trachea; and There are two or more incubators, all of which are connected to the gas concentration detector through the gas tube, and each incubator is equipped with a three-way solenoid valve at the gas sampling port, and the three-way solenoid valve is electrically connected to the gas concentration detector.

[0004] In one possible implementation, the trachea includes: a detection trachea and a ventilation trachea; The two ends of the ventilation tube are respectively adapted to be connected to the sampling device and the gas sampling port; The three-way solenoid valve is connected to the vent pipe; The two ends of the detection tube are connected to the three-way solenoid valve and the gas concentration detector, respectively.

[0005] One possible implementation also includes: a tracheal tee connector; Multiple detection tubes are connected to the gas concentration detector via the tube tee connector.

[0006] One possible implementation also includes: a solenoid valve control line; The gas concentration detector is communicatively connected to multiple three-way solenoid valves via the solenoid valve control line, and controls the opening and closing of the three-way solenoid valves.

[0007] In one possible implementation, the gas concentration detector includes: a housing, a gas pump, and a gas detection sensor. An air inlet is provided on the side wall of the housing, and the air inlet is connected to the detection air tube; The air pump and the gas detection sensor unit are disposed inside the housing, and the air pump and the gas detection sensor unit are connected to the air inlet in sequence.

[0008] One possible implementation also includes: a check valve; The one-way valve is located at the connection point between the detection pipeline and the three-way solenoid valve.

[0009] In one possible implementation, the end of the ventilation pipe away from the incubator is provided with a dustproof mesh cover.

[0010] The beneficial effects of the automatic gas concentration switching measurement device for multiple incubators in this application embodiment are as follows: only one gas concentration detector is needed to cover the detection of multiple incubators, avoiding the high purchase cost of multiple detectors, reducing laboratory equipment investment, and realizing automatic gas path switching through the detector's electrically controlled three-way solenoid valve, eliminating the need for manual insertion and removal of gas tubes, greatly reducing operation time, specifically the time required to turn on each gas concentration detector. The gas pump in the incubator assists in gas flow, avoiding sampling deviations caused by "local gas concentration unevenness", and improving the authenticity of the detection data.

[0011] Other features and aspects of this application will become clear from the following detailed description of exemplary embodiments with reference to the accompanying drawings. Attached Figure Description

[0012] The accompanying drawings, which are included in and form part of this specification, illustrate exemplary embodiments, features, and aspects of this application together with the specification and serve to explain the principles of this application.

[0013] Figure 1 This is a schematic diagram of the main structure of the automatic gas concentration switching measurement device for multiple incubators according to an embodiment of this application; Figure 2 A partial structural schematic diagram of the automatic gas concentration switching measurement device for multiple incubators according to an embodiment of this application is shown. Detailed Implementation Various exemplary embodiments, features, and aspects of this application will now be described in detail with reference to the accompanying drawings. The same reference numerals in the drawings denote elements that have the same or similar functions. Although various aspects of the embodiments are shown in the drawings, they are not necessarily drawn to scale unless specifically indicated otherwise.

[0014] It should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model or 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.

[0015] 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 utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0016] The term “exemplary” as used herein means “serving as an example, embodiment, or illustration.” Any embodiment illustrated herein as “exemplary” is not necessarily to be construed as superior to or better than other embodiments.

[0017] Furthermore, to better illustrate this application, numerous specific details are provided in the following detailed embodiments. Those skilled in the art should understand that this application can be implemented without certain specific details. In some instances, methods, means, components, and circuits well-known to those skilled in the art have not been described in detail in order to highlight the main points of this application.

[0018] like Figure 1 and Figure 2 As shown, the automatic gas concentration switching measuring device for multiple incubators in this embodiment includes: an air pump, a gas concentration detector 10, an air pipe, and a three-way solenoid valve 30. The air pump is suitable for installation inside the incubator 20. One end of the air pipe is connected to the gas sampling port of the incubator 20, and the gas concentration detector is connected to the other end of the air pipe. There are two or more incubators 20, all of which are connected to the gas concentration detector 10 through air pipes. Each gas sampling port of the incubator 20 is equipped with a three-way solenoid valve 30, which is electrically connected to the gas concentration detector 10.

[0019] In this specific embodiment, only one gas concentration detector 10 is needed to cover the detection of multiple incubators 20, avoiding the high procurement cost of multiple detectors 10, reducing laboratory equipment investment. The gas path is automatically switched by the electrically controlled three-way solenoid valve 30 of the detector 10, eliminating the need for manual insertion and removal of gas tubes, and greatly reducing operation time, specifically the time required to turn on each gas concentration detector. The gas pump in the incubator 20 assists in gas flow, avoiding sampling deviations caused by "uneven local gas concentrations" and improving the authenticity of the detection data.

[0020] The gas concentration detector 10 features gas extraction detection and recording functions, and can switch between connected gas tubing. Each detection can set and display the connected gas tubing or incubator 20 number. The gas concentration detector 10 can be set to an automatic detection mode, including the start time of detection, the number and number of incubators 20 to be tested, and the timed detection cycle. The gas tubing connected to one end of the incubator 20 is a three-way solenoid valve 30-controlled pipeline. One end connects to the gas sampling port of the incubator 20, the other end connects to the laboratory environment, and the other end connects to the gas inlet of the gas concentration detector 10. When gas concentration detection is not performed, the gas sampling port of the incubator 20 is connected to the laboratory environment. When gas concentration detection is performed, the gas sampling port of the incubator 20 is connected to the gas inlet of the gas concentration detector 10.

[0021] Specifically, once the automatic detection mode of the gas concentration detector 10 is set, the gas concentration switching detection of multiple incubators 20 begins. After the gas concentration detector 10 has run for the corresponding time, it controls the three-way solenoid valve 30 to switch the gas pipeline channel of the incubator 20 under test and runs the internal air pump to extract and detect the gas concentration inside the incubator 20. After the detection is completed, the air pump is stopped, and the gas pipeline channel of the incubator 20 under test is switched to connect to the laboratory environment. After the measurement is completed, the gas concentration detector 10 records the time of each detection, the number of the incubator 20, and the measured carbon dioxide and oxygen gas concentration values ​​for subsequent review of the detection results. The gas pipeline connection of each incubator uses a three-way solenoid valve 30 connection scheme. When not performing detection, the three-way solenoid valve 30 connects the gas sampling port of the incubator 20 to the laboratory environment to avoid affecting the gas pressure inside the incubator 20. The gas pipeline connection of the multi-incubator 20 follows the principle of the shortest gas path, minimizing the length of the gas pipeline branches, and each branch is equipped with a one-way valve to prevent gas backflow between different incubators 20 to be tested.

[0022] In one specific embodiment, the trachea includes a detection trachea 41 and a ventilation trachea 42. The two ends of the ventilation trachea 42 are respectively adapted to be connected to a sampling device and a gas sampling port. A three-way solenoid valve 30 is connected to the ventilation trachea 42. The two ends of the detection trachea 41 are respectively connected to the three-way solenoid valve 30 and the gas concentration detector 10.

[0023] In this specific embodiment, when not in use, the ventilation tube 42 is open, and the incubator 20 maintains pressure balance with the environment, avoiding positive / negative pressure caused by the closure of the air path. The three-way solenoid valve 30 can clearly distinguish between the detection and ventilation paths, and the detection tube 41 is only used for detection, reducing contact with the environment, reducing the probability of dust and impurities entering the detection air path, and ensuring detection accuracy.

[0024] In one specific embodiment, the system further includes: a tee connector 50, through which multiple detection gas tubes 41 are connected to the gas concentration detector 10. This allows for the connection of multiple incubators 20 without modifying the gas concentration detector 10, reducing modification costs. Furthermore, the multiple gas paths are systematically connected via the tee connector 50, preventing tangled gas tubes and facilitating laboratory gas path maintenance and repair.

[0025] In one specific embodiment, the system further includes a solenoid valve control line 60. The gas concentration detector 10 communicates with multiple three-way solenoid valves 30 via the solenoid valve control line 60, controlling the opening and closing of the three-way solenoid valves 30. Corresponding communication avoids gas path chaos caused by "synchronous operation of multiple solenoid valves," meaning that the opening and closing of each three-way solenoid valve 30 can be controlled. Furthermore, using a shielded solenoid valve control line 60 reduces electromagnetic interference from other laboratory equipment and prevents malfunctions of the solenoid valves.

[0026] In one specific embodiment, the gas concentration detector 10 includes: a housing, a pump body, and a gas detection sensor unit. The side wall of the housing has an air inlet, which is connected to the detection gas pipe 41. The pump body and the gas detection sensor unit are disposed inside the housing, and the pump body and the gas detection sensor unit are connected to the air inlet in sequence.

[0027] In one specific embodiment, it further includes: a one-way valve, which is set at the connection position between the detection pipe and the three-way solenoid valve 30, allowing only the gas in the incubator 20 to flow to the detector 10 through the detection gas pipe 41, and preventing the gas from flowing in reverse.

[0028] In one specific embodiment, a dustproof mesh cover is provided at the end of the ventilation pipe 42 away from the incubator 20.

[0029] The various embodiments of this application have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or improvement of the technology in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. An automatic gas concentration switching and measuring device for multiple incubators, suitable for detecting multiple incubators, characterized in that, include: Air pump, gas concentration detector, air tubing and three-way solenoid valve; The air pump is suitable for installation inside the incubator; One end of the trachea is connected to the gas sampling port of the incubator; The gas concentration detector is connected to the other end of the trachea; and There are two or more incubators, all of which are connected to the gas concentration detector through the gas tube, and each incubator is equipped with a three-way solenoid valve at the gas sampling port, and the three-way solenoid valve is electrically connected to the gas concentration detector.

2. The automatic gas concentration switching and measuring device for multiple incubators according to claim 1, characterized in that, The trachea includes: a detection trachea and a ventilation trachea; The two ends of the ventilation tube are respectively adapted to be connected to the sampling device and the gas sampling port; The three-way solenoid valve is connected to the vent pipe; The two ends of the detection tube are connected to the three-way solenoid valve and the gas concentration detector, respectively.

3. The automatic gas concentration switching and measuring device for multiple incubators according to claim 2, characterized in that, Also includes: tracheal tee connector; Multiple detection tubes are connected to the gas concentration detector via the tube tee connector.

4. The automatic gas concentration switching and measuring device for multiple incubators according to claim 1, characterized in that, Also includes: Solenoid valve control line; The gas concentration detector is communicatively connected to multiple three-way solenoid valves via the solenoid valve control line, and controls the opening and closing of the three-way solenoid valves.

5. The automatic gas concentration switching and measuring device for multiple incubators according to claim 2, characterized in that, The gas concentration detector includes: a housing, a pump body, and a gas detection sensor; An air inlet is provided on the side wall of the housing, and the air inlet is connected to the detection air tube; The pump body and the gas detection sensing unit are disposed inside the housing, and the pump body and the gas detection sensing unit are sequentially connected to the air inlet.

6. The automatic gas concentration switching and measuring device for multiple incubators according to claim 2, characterized in that, Also includes: One-way valve; The one-way valve is located at the connection point between the detection air tube and the three-way solenoid valve.

7. The automatic gas concentration switching and measuring device for multiple incubators according to claim 2, characterized in that, The end of the ventilation pipe furthest from the incubator is equipped with a dustproof mesh cover.

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