Intelligent detector for compressed oxygen self-rescuer

Abstract

The utility model provides an intelligent detector for a compressed oxygen self-rescuer, and relates to the technical field of detection equipment. The compressed oxygen self-rescuer intelligent detector comprises a first connector used for being connected with an air bag; the second connector is used for being connected with a gas cylinder; the buffer cavity is used for buffering air flow; the air pumping and inflating module is connected with the first connector through the buffer cavity; the air exhausting and inflating module is used for exhausting or inflating the air bag; the air pressure detection module is used for detecting air pressure in the buffer cavity; the flow detection module is connected with the second connector; the flow detection module is used for detecting the gas displacement of the gas cylinder; the control module is used for sending and receiving signals and processing data. The intelligent detector has multiple detection functions, and can comprehensively and efficiently detect the compressed oxygen self-rescuer.

Description

Technical Field

[0001] This application relates to the field of testing equipment technology, and in particular to an intelligent testing instrument for compressed oxygen self-rescue devices. Background Technology

[0002] A compressed oxygen self-rescue device is a type of self-rescue equipment. It belongs to the category of small oxygen breathing apparatus and has advantages such as small size, light weight, portability, comfortable wear, simple operation, and reusability.

[0003] Compressed oxygen self-rescuers are essential safety equipment for workers in hazardous environments such as underground coal mines, and their performance directly affects the lives of these workers. To ensure the reliability of compressed oxygen self-rescuers, regular testing is necessary. However, while there are many types of testing equipment available on the market for compressed oxygen self-rescuers, each type can only test a single aspect. For example, some testing equipment can only test airtightness but cannot test opening pressure, oxygen supply, or other parameters. Utility Model Content

[0004] The purpose of this application is to overcome the deficiencies of the prior art and provide an intelligent detector for compressed oxygen self-rescue devices to solve the problems in the prior art.

[0005] To address the aforementioned problems, this application provides an intelligent detector for compressed oxygen self-rescue devices, wherein the compressed oxygen self-rescue device includes an air bag and an air cylinder, and the intelligent detector includes:

[0006] A first connector is used to connect to the airbag;

[0007] The second connector is used to connect to the gas cylinder;

[0008] A buffer chamber is used to buffer the airflow.

[0009] An air-inflation module is connected to the first connector via the buffer cavity; the air-inflation module is used to depress or inflate the airbag.

[0010] A pressure detection module is used to detect the pressure inside the buffer chamber;

[0011] A flow detection module is connected to the second connector; the flow detection module is used to detect the amount of gas discharged from the gas cylinder.

[0012] The control module is used to send signals, receive signals, and process data; wherein the air pumping module, the air pressure detection module, and the flow detection module are all communicatively connected to the control module.

[0013] In one possible implementation, the air-inflation module includes an air-injection device, an inflation device, and a T-connector. The air-injection device is used to depress the airbag, and the inflation device is used to inflate the airbag. Both the air-injection device and the inflation device are communicatively connected to the control module.

[0014] The air extraction device is connected to the first interface of the three-way connector via an air extraction pipe.

[0015] The inflation device is connected to the second interface of the tee connector via an inflation tube;

[0016] The buffer cavity is connected to the third interface of the tee connector.

[0017] In one possible implementation, a first control valve is provided on the air extraction pipe, and a second control valve is provided on the air inflation pipe. Both the first control valve and the second control valve are electrically connected to the control module.

[0018] In one possible implementation, the air extraction device and the air inflation device are arranged adjacent to each other and spaced apart, and both the air extraction device and the air inflation device are provided with shock-absorbing pads.

[0019] Both the air extraction tube and the air inflation tube are flexible tubes.

[0020] In one possible implementation, the system further includes a housing and a panel, the housing being detachably connected to the panel, wherein an installation cavity is formed between the inner wall of the housing and the panel;

[0021] The buffer chamber, the air pumping module, the air pressure detection module, the flow detection module, and the control module are all installed inside the mounting chamber;

[0022] The first connector and the second connector pass through the panel and are at least partially located outside the mounting cavity.

[0023] In one possible implementation, a human-computer interaction module is provided on the panel, and the human-computer interaction module is electrically connected to the control module.

[0024] In one possible implementation, the human-computer interaction module includes one or more of buttons, switches, displays, or touchscreens.

[0025] In one possible implementation, a power module is provided inside the mounting cavity, wherein the inflation / inflation module, the air pressure detection module, the flow detection module, the control module, and the human-machine interaction module are all electrically connected to the power module.

[0026] In one possible implementation, a communication module is also included; wherein the air pressure detection module, the flow detection module, and the control module are all electrically connected to the communication module.

[0027] In one possible implementation, the system further includes a tank, with the buffer cavity disposed inside the tank.

[0028] The buffer cavity is spherical and has a fixed volume, wherein the volume of the buffer cavity is 1 to 4 L.

[0029] The beneficial effects of this application include:

[0030] The intelligent detector for compressed oxygen self-rescue devices proposed in this application includes a first connector, a second connector, a buffer chamber, a pumping / filling module, a pressure detection module, a flow detection module, and a control module. The intelligent detector can perform the following tests: positive pressure airtightness detection, negative pressure airtightness detection, quantitative oxygen supply detection, manual oxygen replenishment detection, and activation pressure detection, among others.

[0031] This intelligent detector has multiple detection functions, enabling it to comprehensively and efficiently detect compressed oxygen self-rescue devices. Attached Figure Description

[0032] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1 A schematic diagram of the structure of an intelligent detector for a compressed oxygen self-rescue device is shown.

[0034] Figure 2 The diagram shows the connection between modules on the intelligent detector for compressed oxygen self-rescue devices.

[0035] Figure 3 A schematic diagram of a gas pumping module is shown.

[0036] Figure 4 A schematic diagram of a tee connector is shown.

[0037] Explanation of key component symbols:

[0038] 10-Airbag; 20-Gas cylinder; 110-First connector; 120-Second connector; 130-Buffer chamber; 131-Tank body; 140-Inflation / extraction module; 141-Extraction device; 1411-Extraction pipe; 1412-First control valve; 142-Inflation device; 1421-Inflation pipe; 1422-Second control valve; 143-T-connector; 1431-First interface; 1432-Second interface; 1433-Third interface; 144-Solenoid valve; 150-Pressure detection module; 160-Flow detection module; 170-Control module; 181-Outer shell; 182-Panel; 183-Mounting cavity; 184-Human-machine interface module; 185-Power module; 186-Communication module. Detailed Implementation

[0039] The embodiments of this application 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 application, and should not be construed as limiting this application.

[0040] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application 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, and therefore should not be construed as a limitation of this application.

[0041] Example

[0042] See Figure 1 and Figure 2 In this embodiment, a smart detector for compressed oxygen self-rescue devices is proposed, which will be referred to as a smart detector for ease of description.

[0043] The compressed oxygen self-rescue device includes an air bag 10 and an air cylinder 20. For the specific structure and working principle of the compressed oxygen self-rescue device, please refer to existing technologies; details will not be elaborated here.

[0044] The intelligent detector includes a first connector 110, a second connector 120, a buffer chamber 130, an air pumping module 140, an air pressure detection module 150, a flow detection module 160, and a control module 170.

[0045] The first connector 110 is used to connect to the airbag 10. When connecting the first connector 110 to the airbag 10, it is necessary to ensure the airtightness of the connection between the two to avoid air leakage.

[0046] The second connector 120 is used to connect to the gas cylinder 20. When connecting the second connector 120 to the gas cylinder 20, it is necessary to ensure the airtightness of the connection to avoid leakage.

[0047] The buffer chamber 130 is used to buffer the airflow to balance the air pressure inside the airbag 10.

[0048] The air-inflation module 140 is connected to the first connector 110 via the buffer chamber 130. The air-inflation module 140 is used to deflate or inflate the airbag 10. When the air-inflation module 140 deflates or inflates the airbag 10, the airflow flows through the buffer chamber 130. The buffer chamber 130 buffers the airflow, thereby balancing the air pressure inside the airbag 10 and preventing excessive instantaneous changes in air pressure inside the airbag 10, which could lead to severe deformation of the airbag 10, damage to the airbag 10, and testing errors.

[0049] The air pressure detection module 150 is used to detect the air pressure inside the buffer chamber 130. After the first connector 110 is sealed and connected to the airbag 10, the airbag 10 and the buffer chamber 130 are connected. When the airbag 10 is deflated or inflated by the inflation / deflation module 140, the air pressure inside the airbag 10 and the buffer chamber 130 will be consistent. At this time, the air pressure inside the airbag 10 can be determined by the air pressure detected by the air pressure detection module 150. Thus, it is not necessary to install the air pressure detection module 150 inside the airbag 10, which facilitates the installation of the airbag 10. The air pressure detection module 150 includes an air pressure sensor.

[0050] The flow detection module 160 is connected to the second connector 120, and is used to detect the exhaust volume of the gas cylinder 20. The flow detection module 160 includes a gas flow meter, etc.

[0051] The control module 170 is used to send and receive signals and process data. The inflation / inflation module 140, the air pressure detection module 150, and the flow detection module 160 are all communicatively connected to the control module 170. The control module 170 includes a circuit board and a microprocessor, or the control module 170 includes a microcontroller, etc.

[0052] In this embodiment, the intelligent detector can detect the following items:

[0053] Positive pressure air tightness test: Disassemble the gas cylinder 20 and the air bag 10, and connect the first connector 110 to the air inlet of the air bag 10. Inflate the air bag 10 with a certain amount of gas through the inflation module 140, and then detect the change in air pressure in the buffer chamber 130 within a preset time through the air pressure detection module 150. In this way, the positive pressure air tightness of the air bag 10 can be tested.

[0054] Negative pressure air tightness test: Disassemble the gas cylinder 20 and the air bag 10, and connect the first connector 110 to the air inlet of the air bag 10. Use the air pumping module 140 to pump out the gas in the air bag 10, and then use the air pressure detection module 150 to detect the change in air pressure in the buffer chamber 130 within a preset time. This will enable the negative pressure air tightness test of the air bag 10.

[0055] Quantitative oxygen supply detection: Disassemble the gas cylinder 20 and the air bag 10, and connect the second connector 120 to the pressure reducing valve of the gas cylinder 20. Turn the switch handwheel counterclockwise, and the high-pressure oxygen in the gas cylinder 20 flows to the flow detection module 160 through the pressure reducing valve and the second connector 120. Therefore, the quantitative oxygen supply can be detected by the flow detection module 160.

[0056] Manual oxygen supply detection: Disassemble the gas cylinder 20 and the air bag 10, connect the second connector 120 to the gas cylinder 20, manually press the manual supply valve on the gas cylinder 20, and the manual oxygen supply can be detected through the flow detection module 160.

[0057] Automatic replenishment valve opening pressure detection: When the gas cylinder 20 and the air bag 10 are assembled, connect the mouthpiece of the air bag 10 to the first connector 110, and evacuate the air bag 10 by installing a preset flow rate (e.g., 8L / min to 12L / min) through the air pumping module 140. The opening pressure of the automatic replenishment valve can be detected by the pressure gauge on the gas cylinder 20.

[0058] Therefore, this intelligent detector possesses multiple detection functions, enabling comprehensive testing of compressed oxygen self-rescue devices. Furthermore, the ability to perform tests on multiple items effectively improves testing efficiency.

[0059] In addition, the control module 170 integrates a software control system. This system processes and analyzes the detected data in real time, reducing the impact of human error on the results and ensuring their accuracy and reliability. This allows for the rapid completion of various tests on the compressed oxygen self-rescue device, and the automatic recording and analysis of the results, saving testing time and labor costs.

[0060] In this embodiment, the air-inflation module 140 includes an air-injection device 141, an inflation device 142, and a three-way connector 143. The air-injection device 141 is used to depress the airbag 10, and the inflation device 142 is used to inflate the airbag 10. Both the air-injection device 141 and the inflation device 142 are communicatively connected to the control module 170. At any given time, only one of the air-injection device 141 or the inflation device 142 can be in operation: when the air-injection device 141 is operating, the inflation device 142 is in a closed state; when the inflation device 142 is operating, the air-injection device 141 is in a closed state; or when both the air-injection device 141 and the inflation device 142 are in a closed state.

[0061] like Figure 4 As shown, the tee connector 143 includes a first interface 1431, a second interface 1432, and a third interface 1433.

[0062] Reference Figure 1 , Figure 3 and Figure 4 As shown, the air extraction device 141 is connected to the first interface 1431 of the three-way connector 143 via the air extraction pipe 1411; the air inflation device 142 is connected to the second interface 1432 of the three-way connector 143 via the air inflation pipe 1421; and the buffer chamber 130 is connected to the third interface 1433 of the three-way connector 143.

[0063] A first control valve 1412 is installed on the suction pipe 1411, and a second control valve 1422 is installed on the inflation pipe 1421. Both the first control valve 1412 and the second control valve 1422 are electrically connected to the control module 170. When the suction device 141 is started, the first control valve 1412 is open and the second control valve 1422 is closed. At this time, the suction pipe 1411 is in a conductive state, and the inflation pipe 1421 is in a cut-off state. When the inflation device 142 is started, the second control valve 1422 is open and the first control valve 1412 is closed. At this time, the inflation pipe 1421 is in a conductive state, and the suction pipe 1411 is in a cut-off state. When neither the suction device 141 nor the inflation device 142 is started, both the first control valve 1412 and the second control valve 1422 are closed. At this time, both the suction pipe 1411 and the inflation pipe 1421 are in a cut-off state.

[0064] The first control valve 1412 and the second solenoid valve 144 both include a solenoid valve 144. The relays of both the first control valve 1412 and the second solenoid valve 144 are electrically connected to the control module 170.

[0065] The vacuum device 141 and the inflation device 142 are arranged adjacent to each other and spaced apart. Both the vacuum device 141 and the inflation device 142 are equipped with shock-absorbing pads. When the vacuum device 141 or the inflation device 142 is in operation, the shock-absorbing pads can play a role in reducing vibration and noise.

[0066] Both the air extraction pipe 1411 and the air inflation pipe 1421 are flexible hoses, which facilitates installation.

[0067] In this embodiment, the intelligent detector for compressed oxygen self-rescue devices also includes a housing 181 and a panel 182. The housing 181 and the panel 182 are detachably connected, wherein a mounting cavity 183 is formed between the inner wall of the housing 181 and the panel 182. The housing 181 and the panel 182 can be detachably connected by means of screws, snap-fit ​​connections, or other methods. The housing 181 and the panel 182 enable the installation and protection of related components, enhancing the stability of the instrument's operation.

[0068] The buffer chamber 130, the inflation / deflation module 140, the air pressure detection module 150, the flow detection module 160, and the control module 170 are all installed in the mounting cavity 183; the first connector 110 and the second connector 120 pass through the panel 182 and are at least partially located outside the mounting cavity 183, thereby facilitating connection with the airbag 10 and the air cylinder 20.

[0069] A human-machine interface module 184 is provided on the panel 182, and the human-machine interface module 184 is electrically connected to the control module 170. The human-machine interface module 184 includes one or more of the following: buttons, switches, display screens, or touch screens.

[0070] In this embodiment, the human-computer interaction module 184 may be a touch screen. Touch screens are easy to operate, allowing users to operate the system by touching the screen, thus eliminating the need for complex button operations.

[0071] The mounting cavity 183 is equipped with a power module 185, in which the inflation / inflation module 140, the air pressure detection module 150, the flow detection module 160, the control module 170, and the human-machine interaction module 184 are all electrically connected to the power module 185.

[0072] The power module 185 includes a DC voltage regulator module and a step-down module. The DC voltage regulator module can output 24V and 12V DC power to power the air pressure detection module 150, the air pumping device 141, the air filling device 142, the first control valve 1412, the second control valve 1422, and the step-down module, etc.; the step-down module can reduce the 12V voltage from the DC voltage regulator module to 5V voltage to power the display screen and the control module 170, etc.

[0073] In this embodiment, the intelligent detector for the compressed oxygen self-rescue device also includes a communication module 186, which enables information transmission between modules. The pressure detection module 150, flow detection module 160, and control module 170 are all electrically connected to the communication module 186. The communication module 186 may include an RS485 communication device, etc.

[0074] During the processes of positive pressure airtightness testing, negative pressure airtightness testing, exhaust valve opening pressure testing, exhaust valve reverse airtightness testing, and airtightness testing of the storage bag or automatic replenishment valve opening pressure testing: the air pressure detection module 150 converts the detected pressure signal into an electrical signal and processes the electrical signal; the processing result is transmitted to the control module 170 via the communication module 186, thereby obtaining the current air pressure value; by comparing it with the preset standard air pressure range, it can be determined whether the test result is qualified.

[0075] When performing relevant oxygen supply testing: the flow detection module 160 converts the detected flow signal into an electrical signal and processes the electrical signal; the processing result is transmitted to the control module 170 via the communication module 186, thereby obtaining the current flow value; by comparing it with the preset standard flow value, it can be determined whether the test result is qualified.

[0076] In this embodiment, the intelligent detector for the compressed oxygen self-rescue device also includes a tank 131, and a buffer chamber 130 is disposed inside the tank 131, wherein the buffer chamber 130 is spherical.

[0077] The tank 131 can be made of materials such as metal or plastic. When the volume of the tank 131 is fixed, the volume of the spherical buffer cavity 130 can be maximized compared to other shapes. Thus, when the volume of the spherical buffer cavity 130 is fixed, the volume of the tank 131 can be reduced as much as possible, thereby reducing the space occupied by the tank 131 and making the intelligent detector smaller.

[0078] The volume of the buffer chamber 130 is a fixed value. When evacuating or inflating, the buffer chamber 130 will not deform under the action of air pressure, thereby avoiding errors and affecting the accuracy of the test results.

[0079] The volume of the buffer chamber 130 is 1 to 4 L. If the volume of the buffer chamber 130 is too small, it will affect the buffering effect on the airflow; if it is too large, it will affect the efficiency of air extraction or inflation.

[0080] The general operating procedure for the intelligent detector of a compressed oxygen self-rescue device is as follows:

[0081] Test preparation: According to the required test function, select the air bag 10 or air cylinder 20 of the compressed oxygen self-rescue device to be tested and connect it to the corresponding connector, and ensure the connection is firm and sealed. Then, the intelligent tester can be powered on.

[0082] Function selection: Access the function selection interface via the touchscreen and select the items to be tested;

[0083] Start Testing: After selecting the testing items, click the "Start Testing" icon on the touchscreen, and the smart testing instrument will begin testing for that item.

[0084] The results show that after the test is completed, the corresponding test results and whether the test item is qualified will be displayed on the touch screen.

[0085] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the 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. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0086] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A compressed oxygen self-rescuer intelligent detector, wherein, The compressed oxygen self-rescuer comprises a gas bag and a gas cylinder, characterized in that the intelligent detector comprises: a first connecting head for connecting with the gas bag; a second connecting head for connecting with the gas cylinder; a buffer cavity for buffering gas flow; an air extraction and charging module connected with the first connecting head through the buffer cavity, and used for extracting or charging air of the gas bag; a gas pressure detection module for detecting gas pressure in the buffer cavity; a flow detection module connected with the second connecting head, and used for detecting exhaust flow of the gas cylinder; a control module for sending signals, receiving signals and processing data; wherein the air extraction and charging module, the gas pressure detection module and the flow detection module are in communication connection with the control module.

2. The intelligent detector for compressed oxygen self-rescuer according to claim 1, characterized in that, The air extraction and charging module comprises an air extraction device, an air charging device and a tee joint, the air extraction device is used for extracting air of the gas bag, and the air charging device is used for charging air of the gas bag; wherein the air extraction device and the air charging device are in communication connection with the control module; the air extraction device is connected with a first interface of the tee joint through an air extraction pipe; the air charging device is connected with a second interface of the tee joint through an air charging pipe; the buffer cavity is connected with a third interface of the tee joint.

3. The intelligent detector for compressed oxygen self-rescuer according to claim 2, characterized in that, A first control valve is arranged on the air extraction pipe, a second control valve is arranged on the air charging pipe, and the first control valve and the second control valve are in electrical connection with the control module.

4. The intelligent detector for compressed oxygen self-rescuer according to claim 2, characterized in that, The air extraction device and the air charging device are arranged adjacently and spaced apart, and a shock-absorbing pad is arranged on each of the air extraction device and the air charging device; the air extraction pipe and the air charging pipe are both flexible pipes.

5. The intelligent detector for compressed oxygen self-rescuer according to claim 1, characterized in that, Further comprising a shell and a panel, the shell is detachably connected with the panel, wherein an installation cavity is formed between an inner wall of the shell and the panel; the buffer cavity, the air extraction and charging module, the gas pressure detection module, the flow detection module and the control module are all installed in the installation cavity; the first connecting head and the second connecting head pass through the panel and are at least partially located outside the installation cavity.

6. The intelligent detector for compressed oxygen self-rescuer according to claim 5, characterized in that, A human-computer interaction module is arranged on the panel, and the human-computer interaction module is in electrical connection with the control module.

7. The intelligent detector for compressed oxygen self-rescuer according to claim 6, characterized in that, The human-computer interaction module comprises one or more of a key, a switch, a display screen or a touch screen.

8. The intelligent detector for compressed oxygen self-rescuer according to claim 6, characterized in that, A power module is arranged inside the installation cavity, and the air extraction and charging module, the gas pressure detection module, the flow detection module, the control module and the human-computer interaction module are all in electrical connection with the power module.

9. The intelligent detector for compressed oxygen self-rescuer according to claim 1, characterized in that, Further comprising a communication module; wherein the gas pressure detection module, the flow detection module and the control module are all in electrical connection with the communication module.

10. The intelligent detector for compressed oxygen self-rescuer according to claim 1, characterized in that, Further comprising a tank, the buffer cavity is arranged inside the tank; the buffer cavity is spherical, and the volume of the buffer cavity is a constant value, wherein the volume of the buffer cavity is 1-4L.

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