A mine self-rescuer and respirator dynamic protection detection device

Abstract

The present application belongs to the technical field of equipment detection, and particularly relates to a dynamic protection detection device for mine self-rescuer and respirator, comprising: a casing, a humanoid model, a breathing simulation mechanism and a test module arranged in the casing, wherein: the humanoid model is used for simulating a user of the mine self-rescuer and respirator; the breathing simulation mechanism is used for simulating a breathing process of the user; the test module is used for detecting a protection performance of the mine self-rescuer and respirator in the simulated use process, and performing real-time display and storage on the detected protection performance parameters, and controlling a breathing frequency and a breathing volume of the user in the breathing process simulated by the breathing simulation mechanism. The present application improves the simulation effect of the breathing state of the user and the reliability and accuracy of the detection of the mine self-rescuer and respirator by adjusting the breathing frequency and the breathing volume in the simulated breathing process of the user through the breathing simulation mechanism.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of equipment detection, and particularly relates to a dynamic protection detection device for a mine self-rescuer and a respirator. BACKGROUND

[0002] The mine self-rescuer and the respirator are a kind of breathing protection equipment specially designed for miners and rescue team members. The mine self-rescuer and the respirator are mainly composed of a gas cylinder, a breathing tube, a face mask, and a gas supply valve, and are mainly applied to coal mines and other mine environments to ensure that miners can safely work in harmful gas or oxygen-deficient environments.

[0003] At present, standards such as GB24502, GB23394, and MT867 have put forward relevant regulations and requirements for the oxygen concentration, carbon dioxide concentration, breathing temperature, and breathing resistance of the mine self-rescuer and the respirator. In addition, the mine self-rescuer and the respirator also need to be regularly detected for protection performance during storage.

[0004] Therefore, it is urgent to design a detection device to meet the detection needs of the protection performance of the mine self-rescuer and the respirator. SUMMARY

[0005] Based on the above problems, the present application aims to provide a dynamic protection detection device for a mine self-rescuer and a respirator, which is used for dynamic protection performance detection of the mine self-rescuer and the respirator, so as to improve the reliability and accuracy of protection testing of the mine self-rescuer and the respirator.

[0006] In order to achieve the above-mentioned purpose, the technical scheme adopted by the present application is as follows:

[0007] The utility model provides a kind of mine self-rescuer and respirator dynamic protection detection device, comprising: casing and be set in casing humanoid model, breathing simulation mechanism and test module, wherein: the humanoid model is used to simulate the user of mine self-rescuer and respirator, breathing guide pipe is equipped in the mouth and nose of humanoid model;The breathing simulation mechanism is used to simulate the breathing process of user;The test module is used to detect the protection performance of mine self-rescuer and respirator during simulation use, and the protection performance parameters detected are displayed and stored in real time, while, it can also control the breathing frequency and breathing volume of breathing simulation mechanism during simulating the breathing process of user;The breathing simulation mechanism includes: breathing simulation cylinder fixedly assembled in casing, one end of the breathing simulation cylinder is fixedly connected with sealing end cover, the end of the breathing simulation cylinder away from sealing end cover is fixedly connected with elastic linkage diaphragm;Breathing delivery pipe is equipped in the breathing simulation cylinder and is communicated with breathing guide pipe, one end of breathing delivery pipe in the breathing simulation cylinder is communicated with simulation lung sac;The end of linkage diaphragm is fixedly connected with piston block, piston block is slidably assembled in breathing simulation cylinder, and the side of piston block away from linkage diaphragm is provided with dynamic breathing drive assembly for driving piston block to reciprocate in breathing simulation cylinder;

[0008] Further, the dynamic breathing drive assembly includes: a rocker that is hingedly assembled with the piston block, one end of the rocker outside the breathing simulation cylinder is hingedly connected with a limiting connection block, the limiting connection block is slidably sleeved in the drive frame and is threadedly connected with an adjusting screw rod in the drive frame, both ends of the adjusting screw rod are rotationally connected with the drive frame, an outer wall of the drive frame is fixedly assembled with a stepper motor, and an output shaft of the stepper motor is drivingly connected with the adjusting screw rod;On the side of the drive frame away from the adjusting screw rod, a drive motor is fixedly assembled at the end of the drive frame, and an output shaft of the drive motor is fixedly connected with the end of the drive frame through a transmission shaft, so that the output shaft of the drive motor is coaxial with the end of the drive frame;

[0009] Further, the simulation lung sac is provided with a combustion temperature control assembly, and the combustion temperature control assembly includes: an exhaust mesh cylinder fixedly assembled in the simulation lung sac, a heat insulation ventilation mesh cylinder fixedly assembled in the exhaust mesh cylinder, and an electrically-controlled combustion rod fixedly assembled in the heat insulation ventilation mesh cylinder, with a control end of the electrically-controlled combustion rod extending out of the simulation lung sac;

[0010] Further, two dynamic breathing drive assemblies are symmetrically arranged on the piston block.

[0011] Further, a bidirectional filtering device is arranged between the breathing guide pipe and the breathing simulation mechanism.

[0012] Further, the test module comprises a display unit, a data storage unit, a control unit and a detection unit, wherein: the detection unit is used for detecting the protection performance parameters of the mine self-rescuer and respirator in the simulated use process and transmitting the detected protection performance parameter data to the display unit and the data storage unit; the display unit is used for displaying the protection performance parameters of the mine self-rescuer and respirator in the use process detected by the detection unit in real time; the data storage unit is used for saving the protection performance parameters of the mine self-rescuer and respirator in the simulated use process detected by the detection unit; and the control unit is used for controlling the breathing simulation mechanism, so that the breathing simulation mechanism can control the breathing frequency and the breathing volume when simulating the breathing process of the user.

[0013] Further, a partition plate is fixedly arranged in the shell, the partition plate divides the shell into a test cavity, a control cavity and an assembly driving cavity which are independent of each other, the humanoid model is fixedly arranged in the test cavity, the breathing simulation mechanism is fixedly arranged in the assembly driving cavity, and the test module is fixedly arranged in the control cavity.

[0014] Compared with the prior art, the present application has the following beneficial effects:

[0015] The detection device can dynamically detect the protection performance of the mine self-rescuer and respirator, that is, in the process of simulating the breathing of the user by the breathing simulation mechanism, the breathing state of the user in various different working states is simulated by dynamically adjusting the breathing volume and the breathing frequency, so that the simulation effect of the detection device is improved; meanwhile, the protection performance of the mine self-rescuer and respirator in different working states is detected, so that the reliability and accuracy of the detection of the mine self-rescuer and respirator are improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0017] Figure 2 It is a schematic diagram of the overall structure of the present application; Figure 1 It is an enlarged view of the structure at B in the middle;

[0018] Figure 3 It is an enlarged view of the structure at A in the middle; Figure 1 It is an enlarged view of the structure at A in the middle;

[0019] Figure 4 It is a schematic diagram of the overall structure of the first embodiment of the breathing simulation mechanism of the present application;

[0020] Figure 5 It is a schematic diagram of the overall structure of the first embodiment of the breathing simulation mechanism of the present application; Figure 4 It is a schematic diagram of the overall structure of the first embodiment of the breathing simulation mechanism of the present application;

[0021] Figure 6 It is a sectional view of the structure of the first embodiment of the breathing simulation mechanism of the present application;

[0022] Figure 7 For Figure 6 structure enlarged view at D in the middle;

[0023] Figure 8 For the overall structure schematic diagram of the second embodiment of the breathing simulation mechanism of the application;

[0024] Figure 9 For the overall structure schematic diagram of the test module of the application;

[0025] In the figure: 1, the casing; 2, the mannequin; 3, the breathing simulation mechanism; 301, the breathing simulation cylinder; 302, the sealing end cover; 303, the linkage diaphragm; 304, the breathing delivery pipe; 305, the simulation lung sac; 306, the piston block; 307, the rocker; 308, the limit connecting block; 309, the driving frame; 310, the adjusting lead screw; 311, the stepping motor; 312, the driving motor; 313, the transmission shaft; 314, the exhaust mesh cylinder; 315, the heat insulation ventilation mesh cylinder; 316, the electric control combustion rod; 4, the filtering mechanism; 401, the cylinder body; 402, the filter cylinder; 403, the communication air pipe; 404, the breathing guide pipe; 5, the partition plate; 6, the test cavity; 7, the control cavity; 8, the assembly driving cavity; 9, the test module; 10, the test connecting pipe; 11, the communication connecting line; 12, the high-pressure fan; 13, the inhalation communication pipe; 14, the exhalation communication pipe; 15, the first inhalation electromagnetic valve; 16, the first exhalation electromagnetic valve; 17, the second inhalation electromagnetic valve; 18, the second exhalation electromagnetic valve; 19, the inhalation check valve; 20, the exhalation check valve; 21, the lung sac; 22, the carbon dioxide input connecting pipe. DETAILED DESCRIPTION

[0026] In order for those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application;

[0027] As Figures 1-9 shown, the application provides a mine self-rescuer and dynamic protection detection device for respirator, comprising: a casing 1, a mannequin 2, a breathing simulation mechanism 3 and a test module 9, wherein:

[0028] As Figure 1As shown, the casing 1 is fixedly assembled with a partition plate 5, the partition plate 5 divides the casing 1 into the test cavity 6, the control cavity 7 and the assembly driving cavity 8 which are independent of each other, the manikin 2 is fixedly assembled in the test cavity 6, the breathing simulation mechanism 3 is fixedly assembled in the assembly driving cavity 8, and the test module 9 is fixedly assembled in the control cavity 7, the manikin 2, the test module 9 and the breathing simulation mechanism 3 are independently separated through the test cavity 6, the control cavity 7 and the assembly driving cavity 8, mutual interference between the components is avoided, and the use stability of the whole mine self-rescuer and respirator dynamic detection device is ensured.

[0029] The manikin 2 is used for simulating the user of the mine self-rescuer and respirator, that is, the actual use state of the mine self-rescuer and respirator is simulated by wearing the breathing mask of the mine self-rescuer and respirator on the face of the manikin 2, which is located at the mouth and nose of the manikin 2 and is internally communicated with the breathing guide pipe 404, that is, the oxygen generated by the mine self-rescuer and respirator can be introduced into the breathing guide pipe 404 from the breathing mask through the breathing guide pipe 404.

[0030] The breathing simulation mechanism 3 is used as an artificial lung and is used for simulating the breathing process of the user, that is, the oxygen generated by the mine self-rescuer and respirator is introduced into the breathing simulation mechanism 3 from the breathing mask through the breathing guide pipe 404 located in the mouth and nose of the manikin 2, to simulate the inhalation process of the user.

[0031] Conversely, the oxygen in the breathing simulation mechanism 3 is pushed out from the breathing guide pipe 404 to the breathing mask, to simulate the exhalation process of the user.

[0032] Preferably, a filtering mechanism 4 can be arranged between the breathing guide pipe 404 and the breathing simulation mechanism 3, the filtering mechanism 4 adopts an existing bidirectional filtering device, and is used for filtering the gas flowing through the inside, such as the oxygen generated by the mine self-rescuer and respirator, during the simulation of the breathing process. Figures 1-2 As shown, in the embodiment, the filtering mechanism 4 is arranged in the manikin 2, which comprises a cylinder body 401 fixedly assembled in the manikin 2, a filtering cylinder 402 for bidirectional filtering fixedly arranged in the cylinder body 401, the upper portion of the cylinder body 401 fixedly communicated with the breathing guide pipe 404, and the side wall of the cylinder body 401 fixedly communicated with a communication air pipe 403 which is used for being communicated with the breathing simulation mechanism 3.

[0033] Further, the breathing simulation mechanism 3 adopted by the present application also has the functions of adjusting the breathing frequency and the breathing volume when simulating the breathing process of the user.

[0034] Specifically, in the first embodiment of the present application, as shown in Figures 3-5As shown, the breathing simulation mechanism 3 comprises: a breathing simulation cylinder 301 fixedly assembled in the assembly driving cavity 8 of the casing 1, one end of the breathing simulation cylinder 301 being fixedly connected with a sealing end cover 302, and the other end of the breathing simulation cylinder 301 being fixedly connected with a linkage diaphragm 303, i.e. a closed breathing cavity is formed through cooperation of the breathing simulation cylinder 301, the sealing end cover 302 and the linkage diaphragm 303, and the linkage diaphragm 303 is elastic and can expand and contract the volume of the closed breathing cavity through elastic reciprocating movement of the linkage diaphragm 303 in the breathing simulation cylinder 301;

[0035] As shown, Figures 6-7 The breathing simulation cylinder 301 is provided with a breathing delivery pipe 304 in communication with the breathing guide pipe 404, and when the filtering mechanism 4 is arranged in the manikin 2, the breathing delivery pipe 304 is in communication with the communication air pipe 403 of the filtering mechanism 4.

[0036] One end of the breathing delivery pipe 304 in the breathing simulation cylinder 301 is in communication with a simulated lung capsule 305, and in this embodiment, two simulated lung capsules 305 are arranged to simulate the human body, and at this time, two branch pipes are connected at the end of the breathing delivery pipe 304 and are in communication with the two simulated lung capsules 305.

[0037] The exhalation and inhalation states of the worker can be simulated by controlling the contraction and expansion of the simulated lung capsule 305, and it is worth noting that since the simulated lung capsule 305 is arranged in the closed breathing cavity, when the volume of the closed breathing cavity is expanded, the external air pressure is greater than the air pressure in the closed breathing cavity, and at this time, the external air, i.e. the oxygen generated by the mine self-rescuer and the breathing apparatus, is delivered into the simulated lung capsule 305 from the breathing mask along the mouth and nose of the manikin 2 through the breathing guide pipe 404 and the breathing delivery pipe 304, thereby simulating the inhalation state of the worker.

[0038] Conversely, when the volume of the closed breathing cavity is reduced, the air pressure in the simulated lung capsule 305 is less than the air pressure in the closed breathing cavity, and at this time, the gas in the simulated lung capsule 305 is discharged from the breathing guide pipe 404 along the mouth and nose of the manikin 2 through the breathing delivery pipe 304, thereby simulating the exhalation state of the worker.

[0039] The linkage diaphragm 303 is fixedly connected with a piston block 306 on one side outside the closed breathing cavity, as shown, Figure 3 The piston block 306 is slidingly assembled in the breathing simulation cylinder 301, i.e. the linkage diaphragm 303 is controlled to move by controlling the reciprocating movement of the piston block 306 in the breathing simulation cylinder 301, thereby changing the volume of the closed breathing cavity, and the simulated lung capsule 305 can be expanded or contracted under the action of the gas pressure, and the breathing state is simulated through expansion or contraction of the simulated lung capsule 305.

[0040] The side of the piston block 306 away from the linkage diaphragm 303 is provided with a dynamic breathing drive assembly for driving the piston block 306 to reciprocate in the breathing simulation cylinder 301, as shown in the figure, which comprises a rocker 307 hingedly assembled with the piston block 306, the end of the rocker 307 outside the breathing simulation cylinder 301 is hingedly connected with a limiting connecting block 308, the limiting connecting block 308 is slidably sleeved in a drive frame 309, and is in threaded connection with an adjusting screw 310 in the drive frame 309, both ends of the adjusting screw 310 are rotationally connected with the drive frame 309, and the outer wall of the drive frame 309 is fixedly assembled with a stepping motor 311, the output shaft of the stepping motor 311 is in transmission connection with the adjusting screw 310. Figures 3-5

[0041] That is, the adjusting screw 310 is rotationally driven by controlling the operation of the stepping motor 311, so that the limiting connecting block 308 moves along the axis of the adjusting screw 310 in the drive frame 309 under the action of the internal and external threads, thereby the swing distance of the rocker 307 and the limiting connecting block 308 can be regulated.

[0042] The end of the side of the drive frame 309 away from the adjusting screw 310 is fixedly assembled with a drive motor 312, the output shaft of the drive motor 312 is fixedly connected with the end of the drive frame 309 through a transmission shaft 313, and the output shaft of the drive motor 312 is coaxial with the end of the drive frame 309, the transmission shaft 313 serves to connect the drive motor 312 and the drive frame 309, so that the drive frame 309 can rotate synchronously around the end under the action of the rotation of the output shaft of the drive motor 312.

[0043] Preferably, two dynamic breathing drive assemblies are symmetrically arranged on the piston block 306 to improve the stability of the movement of the piston block 306; specifically, in the embodiment, the piston block 306 slidably assembled in the breathing simulation cylinder 301, the rocker 307 and the drive frame 309 form a crank slider mechanism, that is, when the drive frame 309 is driven to rotate around the end by the drive motor 312, the piston block 306 can be driven to reciprocate in the breathing simulation cylinder 301 by the reciprocating swing of the rocker 307, thereby the linkage diaphragm 303 can be driven to reciprocate, the simulated lung sac 305 can be controlled to contract or expand by controlling the expansion or reset of the linkage diaphragm 303, thereby the exhalation and inhalation state of the worker can be simulated.

[0044] ​In actual application process, the reciprocating movement frequency of the piston block 306 can be adjusted by controlling the output shaft rotating speed of the driving motor 312, and then the contraction and expansion frequency of the simulated lung capsule 305 is controlled, so as to realize the purpose of adjusting the breathing simulation times, i.e. the breathing frequency, and the effect of simulating the breathing state under various operation conditions is achieved.

[0045] For example, when walking normally, the breathing frequency is 12-20 times per minute; when walking fast, the breathing frequency is 18-30 times per minute; when jogging, the breathing frequency is 18-25 times per minute; when climbing, the breathing frequency is 20-30 times per minute; and when carrying heavy objects, the breathing frequency is 30-40 times per minute. By simulating the breathing frequency under different operation conditions, the accuracy and reliability of detecting the protective performance of the mine self-rescuer and the respirator are improved.

[0046] The adjustment of the gas volume inhaled or exhaled per breath, i.e. the breathing volume, is realized by controlling the stepping motor 311 to adjust the position of the limiting connecting block 308 on the adjusting lead screw 310, so as to adjust the swinging distance of the rocker 307 and the limiting connecting block 308. For example, when the limiting connecting block 308 is located at the uppermost end of the driving frame 309, the sliding distance of the piston block 306 in the breathing simulation cylinder 301 is the longest, and more gas can be inhaled and exhaled.

[0047] In addition, as a preferred technical solution, as shown in the figure, Figures 6-7 In the embodiment, a combustion temperature control assembly can be arranged in the simulated lung capsule 305, which is used for burning and temperature control of the oxygen entering the simulated lung capsule 305.

[0048] The combustion temperature control assembly comprises an exhaust mesh cylinder 314 fixedly assembled in the simulated lung capsule 305, a heat insulation ventilation mesh cylinder 315 fixedly assembled in the exhaust mesh cylinder 314, and an electric control combustion rod 316 fixedly assembled in the heat insulation ventilation mesh cylinder 315. The control end of the electric control combustion rod 316 extends out of the simulated lung capsule 305.

[0049] By controlling the operation of the electric control combustion rod 316, the oxygen inhaled in the simulated lung capsule 305 can be converted into carbon dioxide and then discharged, so as to improve the simulation breathing effect. In addition, the exhaled carbon dioxide amount of the simulated lung capsule 305 under different operation conditions can be dynamically adjusted by controlling the combustion time of the electric control combustion rod 316.

[0050] Meanwhile, by controlling the operation of the electrically-controlled combustion rod 316, not only carbon dioxide can be generated, but also the simulated lung capsule 305 can be heated by combustion, and the inner wall of the simulated lung capsule 305 can be dried by controlling the temperature in the simulated lung capsule 305, so that the inner wall of the simulated lung capsule 305 is prevented from being wetted due to humidified inhalation and cleaning, and the cleaning and application effect of the simulated lung capsule 305 are ensured.

[0051] The exhaust net cylinder 314 and the heat insulation ventilation net cylinder 315 are used for assembling and heat insulation protection of the electrically-controlled combustion rod 316, so that the simulated lung capsule 305 is prevented from being damaged due to the electrically-controlled combustion rod 316 in actual application.

[0052] In the second embodiment of the present application, as shown in Figure 8 Fig. 2, the breathing simulation mechanism 3 comprises a high-pressure fan 12, an inhalation communication pipe 13, an exhalation communication pipe 14, a first inhalation electromagnetic valve 15, a first exhalation electromagnetic valve 16, a second inhalation electromagnetic valve 17, a second exhalation electromagnetic valve 18, an inhalation one-way valve 19, an exhalation one-way valve 20 and a lung capsule 21, wherein:

[0053] The inhalation communication pipe 13 and the exhalation communication pipe 14 are both three-way pipes, and:

[0054] the first connection ends of the two pipes are respectively connected with the air inlet and the air outlet of the high-pressure fan 12, i.e. the first connection end of the inhalation communication pipe 13 is connected with the air inlet of the high-pressure fan 12, and the first connection end of the exhalation communication pipe 14 is connected with the air outlet of the high-pressure fan 12;

[0055] the second connection ends of the two pipes are simultaneously connected with the breathing guide pipe 404, and when the filtering mechanism 4 is arranged in the humanoid model 2, the second connection ends of the two pipes are simultaneously connected with the communication air pipe 403 of the filtering mechanism 4;

[0056] the second connection ends of the two pipes are respectively provided with the first inhalation electromagnetic valve 15 and the first exhalation electromagnetic valve 16, i.e. the second connection end of the inhalation communication pipe 13 is provided with the first inhalation electromagnetic valve 15, and the second connection end of the exhalation communication pipe 14 is provided with the first exhalation electromagnetic valve 16, and the communication state between the inhalation communication pipe 13 and the exhalation communication pipe 14 and the breathing guide pipe 404 or the communication air pipe 403 can be controlled by controlling the opening and closing state of the first inhalation electromagnetic valve 15 and the first exhalation electromagnetic valve 16;

[0057] the third connection ends of the two pipes are respectively connected with the lung capsule 21 through the inhalation one-way valve 19 and the exhalation one-way valve 20 arranged in opposite directions, and the third connection ends of the two pipes are respectively provided with the second inhalation electromagnetic valve 17 and the second exhalation electromagnetic valve 18;

[0058] wherein the inhalation one-way valve 19 and the exhalation one-way valve 20 arranged in opposite directions are represented as:

[0059] The inhalation one-way valve 19 allows gas to flow only from the lung bag 21 to the third connecting end of the inhalation communication pipe 13;

[0060] The exhalation one-way valve 20 allows gas to flow only from the third connecting end of the exhalation communication pipe 14 to the lung bag 21;

[0061] The second inhalation electromagnetic valve 17 is arranged on the third connecting end of the inhalation communication pipe 13, and the second exhalation electromagnetic valve 18 is arranged on the third connecting end of the exhalation communication pipe 14. By controlling the opening and closing states of the second inhalation electromagnetic valve 17 and the second exhalation electromagnetic valve 18, the communication states of the inhalation communication pipe 13 and the exhalation communication pipe 14 with the lung bag 21 can be controlled.

[0062] In this embodiment, since the flow rate and the rotating speed of the high-pressure fan 12 satisfy the similar law, i.e., the flow rate increases by the same proportion when the rotating speed increases, the dynamic and accurate adjustment of the breathing frequency and the breathing volume during the simulation of the user's breathing process by the breathing simulation mechanism 3 can be realized by controlling the rotating speed of the high-pressure fan 12.

[0063] Specifically, when the simulated exhalation action is performed, i.e., the gas in the lung bag 21 needs to be discharged through the second connecting end of the exhalation communication pipe 14, the first exhalation electromagnetic valve 16 and the second inhalation electromagnetic valve 17 are controlled to be opened, and the first inhalation electromagnetic valve 15 and the second exhalation electromagnetic valve 18 are controlled to be closed. When the high-pressure fan 12 operates, the suction port of the high-pressure fan 12 will draw the gas in the lung bag 21 through the third and first connecting ends of the inhalation communication pipe 13, and then discharge the gas from the gas outlet of the high-pressure fan 12 into the exhalation communication pipe 14. Since the first exhalation electromagnetic valve 16 is opened and the second exhalation electromagnetic valve 18 is closed, the gas in the exhalation communication pipe 14 can only be discharged from the second connecting end of the exhalation communication pipe 14;

[0064] When the simulated inhalation action is performed, i.e., the external gas, i.e., the oxygen in the breathing mask of the mine self-rescuer and the respirator, needs to be introduced into the lung bag 21 through the second connecting end of the inhalation communication pipe 13, the first inhalation electromagnetic valve 15 and the second exhalation electromagnetic valve 18 are controlled to be opened, and the first exhalation electromagnetic valve 16 and the second inhalation electromagnetic valve 17 are controlled to be closed. When the high-pressure fan 12 operates, the suction port of the high-pressure fan 12 will draw the external gas through the second connecting end of the inhalation communication pipe 13, and then discharge the gas from the gas outlet of the high-pressure fan 12 into the exhalation communication pipe 14. Since the first exhalation electromagnetic valve 16 is closed and the second exhalation electromagnetic valve 18 is opened, the air in the exhalation communication pipe 14 can only flow into the lung bag 21 through the exhalation one-way valve 20;

[0065] Therefore, by alternately controlling the opening and closing states of the first inhalation electromagnetic valve 15, the first exhalation electromagnetic valve 16, the second inhalation electromagnetic valve 17, and the second exhalation electromagnetic valve 18 in the above manner, the reciprocating alternation of the exhalation and inhalation actions can be realized, and the function of simulating breathing can be realized.

[0066] The adjustment of the breathing frequency can be achieved by controlling the switching frequency of the first expiratory electromagnetic valve 16 and the second inspiratory electromagnetic valve 17, and the first inspiratory electromagnetic valve 15 and the second expiratory electromagnetic valve 18, and the adjustment of the breathing volume can be achieved by controlling the opening and closing duration of the first expiratory electromagnetic valve 16 and the second inspiratory electromagnetic valve 17, the first inspiratory electromagnetic valve 15 and the second expiratory electromagnetic valve 18.

[0067] Preferably, the carbon dioxide input pipe 22 is communicated with the lung capsule 21, the carbon dioxide input pipe 22 is communicated with the carbon dioxide source through a switch control valve, and the oxygen extraction interface is additionally arranged on the inspiratory communication pipe 13 and connected with the oxygen extraction pump; that is, the logical control mode is adopted, when the expiratory action is simulated, the oxygen in the lung capsule 21 is extracted through the inspiratory communication pipe 13 by using the oxygen extraction pump, then the external carbon dioxide is injected into the lung capsule 21 according to the set flow rate by using the carbon dioxide input pipe 22, and then the expiratory action is performed to realize the process of generating carbon dioxide when the human body exhales; preferably, the carbon dioxide input pipe 22 is communicated with the lung capsule 21, the carbon dioxide input pipe 22 is communicated with the carbon dioxide source through a switch control valve, and the oxygen extraction interface is additionally arranged on the inspiratory communication pipe 13 and connected with the oxygen extraction pump; that is, the logical control mode is adopted, when the expiratory action is simulated, the oxygen in the lung capsule 21 is extracted through the inspiratory communication pipe 13 by using the oxygen extraction pump, then the external carbon dioxide is injected into the lung capsule 21 according to the set flow rate by using the carbon dioxide input pipe 22, and then the expiratory action is performed to realize the process of generating carbon dioxide when the human body exhales;

[0068] The test module 9 is used for detecting the protection performance of the mine self-rescuer and the respirator during use, such as the gas (oxygen or carbon dioxide) concentration, temperature and breathing resistance in the breathing mask, and the like, and performing real-time display and storage of the detected use performance parameters, and is also used as a control end of the breathing simulation mechanism 3 to control the breathing frequency and the breathing volume of the breathing simulation mechanism 3 during simulation of the breathing process of the user; the test module 9 is used for detecting the protection performance of the mine self-rescuer and the respirator during use, such as the gas (oxygen or carbon dioxide) concentration, temperature and breathing resistance in the breathing mask, and the like, and performing real-time display and storage of the detected use performance parameters, and is also used as a control end of the breathing simulation mechanism 3 to control the breathing frequency and the breathing volume of the breathing simulation mechanism 3 during simulation of the breathing process of the user;

[0069] As Figure 1 and Figure 9 As shown in the drawings, the test module 9 is fixedly assembled in the control cavity 7, which comprises a display unit, a data storage unit, a control unit and a detection unit, wherein:

[0070] The detection unit is used for detecting the protection performance parameters of the mine self-rescuer and respirator during use and transmitting the detected protection performance parameter data to the display unit and the data storage unit. In the embodiment, a test connecting pipe 10 is arranged in the test cavity 6, the test connecting pipe 10 is in communication with the breathing mask of the mine self-rescuer and respirator, and gas concentration sensors such as a miniature oxygen concentration sensor, a carbon dioxide concentration sensor, a temperature sensor and a pressure sensor are arranged in the test connecting pipe 10; that is, the oxygen concentration, the carbon dioxide concentration, the temperature and the breathing resistance in the breathing mask of the mine self-rescuer and respirator during use are detected by the above-mentioned corresponding sensors;

[0071] In specific use, the mask of the mine self-rescuer and respirator to be detected is buckled at the face position of the humanoid model 2, and the two ends of the test connecting pipe 10 are connected with the breathing mask of the mine self-rescuer and respirator, so that the oxygen concentration, the carbon dioxide concentration, the temperature and the breathing resistance in the breathing pipe can be tested by the miniature oxygen sensor, the carbon dioxide sensor, the temperature sensor and the pressure sensor arranged in the test connecting pipe 10, and then the detection parameter data is transmitted to the display unit and the data storage unit by the communication connecting line 11 to provide a data basis for subsequent judgment of the protection performance of the mine self-rescuer and respirator.

[0072] The display unit is used for real-time display of the protection performance parameters of the mine self-rescuer and respirator during use detected by the detection unit;

[0073] The data storage unit is used for saving the protection performance parameters of the mine self-rescuer and respirator during simulated use detected by the detection unit, so as to compare the protection performance parameters of different types of mine self-rescuers and respirators;

[0074] The control unit is used for controlling the breathing simulation mechanism 3 to adjust the breathing frequency and the breathing volume when simulating the breathing process of the user, such as controlling the stepping motor 311 and the driving motor 312 of the breathing simulation mechanism 3, or the high-pressure fan 12;

[0075] Obviously, the above-described embodiments are only part of the embodiments of the present application, not all the embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative labor based on the embodiments in the present application should belong to the protection scope of the present application.

Claims

1. A mine self-rescuer and breathing apparatus dynamic protection detection device, comprising: The shell (1) and the manikin (2), the breathing simulation mechanism (3) and the test module (9) arranged in the shell (1), wherein: The manikin (2) is used for simulating the user of the mine self-rescuer and the respirator, and the breathing guide pipe (404) is arranged in the mouth and nose of the manikin (2); The breathing simulation mechanism (3) is used for simulating the breathing process of the user; The test module (9) is used for detecting the protection performance of the mine self-rescuer and the respirator during the simulation of the use process, and the protection performance parameters detected are displayed and stored in real time, and the breathing frequency and the breathing volume of the user during the simulation of the breathing process by the breathing simulation mechanism (3) can be controlled; The breathing simulation mechanism (3) comprises a breathing simulation cylinder (301) fixedly arranged in the shell (1), one end of the breathing simulation cylinder (301) is fixedly connected with a sealing end cover (302), and the other end of the breathing simulation cylinder (301) away from the sealing end cover (302) is fixedly connected with an elastic linkage diaphragm (303); The breathing simulation cylinder (301) is provided with a breathing conveying pipe (304) in communication with the breathing guide pipe (404), one end of the breathing conveying pipe (304) in the breathing simulation cylinder (301) is in communication with a simulation lung capsule (305); The end of the linkage diaphragm (303) is fixedly connected with a piston block (306), the piston block (306) is slidingly arranged in the breathing simulation cylinder (301), and one end of the piston block (306) away from the linkage diaphragm (303) is provided with a dynamic breathing driving assembly for driving the piston block (306) to reciprocate in the breathing simulation cylinder (301); The dynamic breathing driving assembly comprises a rocker (307) hingedly arranged with the piston block (306), one end of the rocker (307) located outside the breathing simulation cylinder (301) is hingedly connected with a limiting connecting block (308), the limiting connecting block (308) is slidingly sleeved in a driving frame (309), and is in threaded connection with an adjusting lead screw (310) arranged in the driving frame (309), both ends of the adjusting lead screw (310) are rotatably connected with the driving frame (309), a stepping motor (311) is fixedly arranged on the outer wall of the driving frame (309), and the output shaft of the stepping motor (311) is in transmission connection with the adjusting lead screw (310); A driving motor (312) is fixedly arranged on the end of the driving frame (309) away from the adjusting lead screw (310), the output shaft of the driving motor (312) and the end of the driving frame (309) are fixedly connected through a transmission shaft (313), and the output shaft of the driving motor (312) and the end of the driving frame (309) are coaxial; The simulation lung bag (305) is internally provided with a combustion temperature control assembly, the combustion temperature control assembly comprises: an exhaust mesh cylinder (314), the exhaust mesh cylinder (314) is fixedly assembled in the simulation lung bag (305), the exhaust mesh cylinder (314) is fixedly assembled with a heat insulation ventilation mesh cylinder (315) therein, the heat insulation ventilation mesh cylinder (315) is fixedly assembled with an electric control combustion stick (316) therein, and a control end of the electric control combustion stick (316) is arranged out of the simulation lung bag (305).

2. The dynamic protection detection device for mine self-rescuer and breathing apparatus according to claim 1, characterized in that, Two dynamic breathing driving assemblies are symmetrically arranged on the piston block (306).

3. The dynamic protection detection device for mine self-rescuer and breathing apparatus according to claim 1, characterized in that, A bidirectional filtering device is arranged between the breathing guide pipe (404) and the breathing simulation mechanism (3).

4. The dynamic protection detection device for mine self-rescuer and breathing apparatus according to claim 1, characterized in that, The test module (9) comprises a display unit, a data storage unit, a control unit and a detection unit, wherein: The detection unit is used for detecting the protective performance parameters of the mine self-rescuer and the respirator in the simulation use process and transmitting the detected protective performance parameter data to the display unit and the data storage unit; The display unit is used for displaying the protective performance parameters of the mine self-rescuer and the respirator in the use process detected by the detection unit in real time; The data storage unit is used for saving the protective performance parameters of the mine self-rescuer and the respirator in the simulation use process detected by the detection unit; The control unit is used for controlling the breathing simulation mechanism (3), so that the breathing simulation mechanism (3) can control the breathing frequency and the breathing volume when simulating the breathing process of the user.

5. The dynamic protection detection device for mine self-rescuer and breathing apparatus according to claim 1, characterized in that, The casing (1) is fixedly assembled with a partition plate (5), the partition plate (5) divides the casing (1) into a test cavity (6), a control cavity (7) and an assembly driving cavity (8) which are independent of each other, the humanoid model (2) is fixedly assembled in the test cavity (6), the breathing simulation mechanism (3) is fixedly assembled in the assembly driving cavity (8), and the test module (9) is fixedly assembled in the control cavity (7).

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