Gas mask airtightness detection device

Abstract

The invention relates to the technical field of gas mask airtightness detection, in particular to a gas mask airtightness detection device which comprises a bottom plate and further comprises a head mold, the head mold is installed at the top of the bottom plate through a driving assembly, a gas storage tank is fixedly installed at the top of the bottom plate, and a marking device is arranged on the side, away from the gas storage tank, of the head mold. A plurality of marking rods are arranged on the side, close to the head mold, of the marking device, the marking rods are made of phototactic materials, fluorescent substances are smeared on the marking rods, and two sets of electrode assemblies are arranged on the side wall of the head mold. The electrode assembly is installed to enable neon to emit light, when the electrified neon escapes from the damaged position of the gas mask, the marking rod made of the phototaxis material extends towards the light source, the damaged position is marked through the fluorescent substance on the marking rod, and therefore maintenance personnel can visually find the damaged position of the gas mask, and the maintenance personnel can conveniently and rapidly find the damaged position of the gas mask. And tedious search or detection is not needed, so that the maintenance efficiency is improved, and the practicability of the equipment is enhanced.

Description

Technical Field

[0001] The invention relates to the technical field of gas mask air tightness detection, in particular to a gas mask air tightness detection device. Background Art

[0002] The main function of a gas mask is to prevent harmful gases, vapors or particles from entering the respiratory tract, and good air tightness is the key to ensuring its effective protection. If there is a leak in the mask, harmful substances will enter the mask through the leak, thereby reducing or even completely losing the protective effect, exposing the wearer to the risk of poisoning or health hazards. Regular air tightness testing can promptly detect sealing problems in the mask and carry out timely repairs or replacements, which helps to improve the reliability and service life of the gas mask and ensure that it can function normally when needed.

[0003] At present, the existing gas mask air tightness detection device usually only performs a simple air tightness judgment during the detection work. When the air tightness of the gas mask is not good, the gas mask needs to be inspected and repaired to prevent the damaged parts of the gas mask from becoming a channel for harmful substances to enter, causing serious health threats to the wearer. Since the damaged parts are not marked or identified during the detection process, the difficulty of subsequent maintenance work is increased. Maintenance personnel need to spend more time and energy to find the damaged parts, resulting in low maintenance efficiency. In addition, unnecessary disassembly and replacement will increase maintenance costs, thereby making the equipment less practical. Summary of the invention

[0004] The purpose of the present invention is to solve the problem of poor practicability of the detection device in the prior art, and to propose a gas mask air tightness detection device.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a gas mask air tightness detection device, comprising a base plate and a head mold, wherein the head mold is installed on the top of the base plate through a driving assembly, and the driving assembly is used to drive the head mold to rotate; an air storage box is fixedly installed on the top of the base plate, and the interior of the air storage box is filled with neon gas; a conveying assembly is connected between the air storage box and the head mold; a marking device is provided on the side of the head mold away from the air storage box; a plurality of marking rods are provided on the side of the marking device close to the head mold, the marking rods are made of phototactic material, and fluorescent substances are coated on the marking rods; two groups of electrode assemblies are provided on the side walls of the head mold, and the electrode assemblies are used to energize the neon gas and make it emit light.

[0006] Preferably, the driving assembly comprises a motor fixedly mounted on the top of the bottom plate, and a rotating shaft of the motor passes through the bottom of the head mold and is fixedly connected to the head mold.

[0007] Preferably, the top of the base plate is rotatably connected to a support column, a rotation opening is opened through the bottom of the head mold, and the support column extends into the head mold through the rotation opening, the top of the support column is fixedly connected to a rotating block, and a connecting component is arranged between the rotating shaft of the motor and the support column.

[0008] Preferably, the connecting assembly includes a first gear and a second gear, the first gear is fixedly mounted on the top of the rotating shaft of the motor, the second gear is fixedly mounted on the side wall of the supporting column, and the first gear is meshed with the second gear.

[0009] Preferably, the conveying assembly includes a two-way air pump fixedly mounted on the top of an air storage box, the two-way air pump is connected to the air storage box, the side wall of the two-way air pump is fixedly connected with an air inlet pipe, one end of the air inlet pipe away from the two-way air pump passes through the top of the head mold and is rotatably connected to the head mold, the bottom of the air inlet pipe is rotatably connected with a rotating air outlet pipe, one end of the rotating air outlet pipe away from the air inlet pipe passes through the side wall of the head mold and corresponds to the marking device.

[0010] Preferably, a lifting device is fixedly installed on the top of the base plate, and the lifting device is located below the marking device and fixedly connected to the marking device.

[0011] Preferably, a first gas storage portion and a second gas storage portion are provided on the top of the base plate, and the first gas storage portion and the second gas storage portion are located on the side of the marking device away from the head mold, and the first gas storage portion and the second gas storage portion are both composed of a gas storage tank, a gas detector and a protective shell, and the gas storage tank is filled with neon gas.

[0012] Preferably, the side wall of the first air storage portion is fixedly connected to a first connecting sleeve, the first connecting sleeve passes through the marking device and is fixedly connected to the marking device, the first connecting sleeve corresponds to the exhalation valve of the gas mask, and the first connecting sleeve is made of soft material.

[0013] Preferably, the side wall of the second air storage portion is fixedly connected to a second connecting sleeve, the second connecting sleeve passes through the marking device and is fixedly connected to the marking device, the second connecting sleeve corresponds to the air inhalation valve of the gas mask, and the second connecting sleeve is made of soft material.

[0014] Preferably, a power source is disposed inside the head mold, and the electrode assembly comprises a mesh electrode, the mesh electrode is connected to the power source via a fastener, and a needle electrode is fixedly connected to the side wall of the mesh electrode.

[0015] Compared with the prior art, the advantages of the present invention are: The present invention installs devices such as marking rods, and when energized neon gas escapes from the damaged part of the gas mask, the marking rod made of phototactic material extends toward the light source, that is, the place where the neon gas emits light, and marks the damaged part through the fluorescent material thereon, so that maintenance personnel can intuitively find the damaged position of the gas mask without tedious search or detection. The extension of the marking rod and the fluorescent mark can quickly and accurately mark the damaged area, thereby helping the maintenance personnel to quickly determine the parts or areas that need to be repaired or replaced, thereby improving maintenance efficiency, avoiding unnecessary disassembly and replacement, thereby reducing maintenance costs and increasing the service life of the equipment.

[0016] The present invention installs devices such as a head mold, a motor and a rotating block, and drives the head mold to swing left and right through a motor, so as to simulate normal activities of a person after wearing a gas mask, and is helpful to more accurately detect the degree of fit and air tightness of the gas mask with the face as the face rotates during actual use of the gas mask. Compared with static detection, it can more comprehensively reflect the air tightness of the gas mask, and ensure that the gas mask can maintain a tight fit under various head rotation angles to prevent leakage of toxic gases. The second gear and the first gear work together to make the support column drive the rotating block to rotate, simulating the changes in the muscles on both sides of the cheeks of a person when speaking, and more truly reflecting the influence of facial muscle movement on the sealing of the mask when the gas mask is actually used, and more comprehensively evaluating the performance of the gas mask, ensuring that it can maintain a good sealing effect under various facial movement conditions, and avoiding leakage problems caused by muscle movement. Through this more comprehensive and more realistic detection, the reliability of the gas mask is improved.

[0017] The present invention installs devices such as a two-way air pump, an air storage box, and an air intake pipe, and uses the two-way air pump to extract neon gas in the air storage box and discharge it into a sealed space formed by a gas mask and a head mold. After the power is turned on, an electric field is formed at both ends of the electrode assembly, so that the neon gas emits red or orange-red light. This color has a high visual recognition, especially in a dark environment, the light source is more obvious and easy to observe. When the gas mask is damaged, the obvious light source formed by the escape of neon gas can be easily identified, thereby ensuring the accuracy of the detection, without the need to disassemble or destroy the gas mask, ensuring the integrity of the gas mask and the possibility of repeated use, thereby enhancing the practicality of the device.

[0018] The present invention installs devices such as mesh electrodes, fasteners and needle electrodes. The mesh electrode has a larger specific surface area due to its unique mesh structure, which enables it to more effectively capture and convert energy during the power generation process, generate a stronger electric field, and also contribute to the uniformity of the electric field distribution, thereby improving the luminous intensity and uniformity of the neon gas. The tip shape of the needle electrode gives it a significant tip effect, which helps to generate a stronger electric field in the neon gas close to the mask part, thereby enhancing the luminous intensity of the neon gas, making the neon gas more concentrated and directional, making the light easier to be captured by equipment such as marking rods, and improving the recognition efficiency and accuracy of the system.

[0019] The present invention uses a first gas storage part, a second gas storage part and other devices, and utilizes a two-way air pump to blow neon gas into the gas mask. The gas detector in the first gas storage part detects the concentration change of neon gas in the gas tank of the first gas storage part, thereby judging the sealing performance of the exhalation valve. The two-way air pump is then used to extract neon gas from the gas mask. The gas detector in the second gas storage part detects the concentration change of neon gas in the gas tank of the second gas storage part, thereby judging the sealing performance of the inhalation valve. The airtight performance of the gas mask is fully understood to avoid missing potential problems. Through the process of exhausting and pumping air, the working state of the gas mask when a person actually breathes is more closely simulated, the airtight performance of the exhalation valve and the inhalation valve in actual use is truly reflected, and the effectiveness of the gas mask in actual application is ensured. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The present invention is a schematic structural diagram of a gas mask air tightness detection device proposed by the present invention.

[0021] Figure 2 The present invention is a side view of a gas mask air tightness detection device.

[0022] Figure 3 The present invention provides a schematic structural diagram of the lower half of a head mold of a gas mask air tightness detection device.

[0023] Figure 4 The present invention provides a top view of the lower half of a head mold of a gas mask air tightness detection device.

[0024] Figure 5 The present invention provides a schematic diagram of the internal structure of the lower half of a head mold of a gas mask air tightness detection device.

[0025] Figure 6 This is a schematic structural diagram of the upper half of a head mold of a gas mask air tightness detection device proposed by the present invention.

[0026] Figure 7 The present invention provides a top view of the upper half of a head mold of a gas mask air tightness detection device.

[0027] Figure 8 This is a structural schematic diagram of the marking part of a gas mask air tightness detection device proposed by the present invention.

[0028] In the figure: 1 bottom plate, 2 motor, 3 lifting device, 4 first air storage part, 5 second air storage part, 6 marking device, 7 head mold, 8 air inlet pipe, 9 two-way air pump, 10 air storage box, 11 electrode assembly, 12 first gear, 13 rotating block, 14 second gear, 15 support column, 16 rotating air outlet pipe, 17 mesh electrode, 18 needle electrode, 19 fastener, 20 power supply, 21 first connecting sleeve, 22 second connecting sleeve, 23 marking rod. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0030] Reference Figures 1 to 8A gas mask air tightness detection device comprises a base plate 1, a motor 2 is fixedly installed on the top of the base plate 1, a head mold 7 is arranged above the motor 2, a rotating shaft of the motor 2 passes through the bottom of the head mold 7 and is fixedly connected to the head mold 7, the gas mask is installed together with the head mold 7 through an elastic headband, and the head mold 7 is driven by the motor 2 to swing left and right, simulating normal activities performed by a person after wearing a gas mask, such as turning the head and shaking the head, etc., which is helpful to more accurately detect the fit and air tightness of the gas mask with the face during actual use. As the face rotates, the head mold 7 swings, and the detection personnel can observe the fit of the gas mask at multiple different angles. Compared with static detection, it can more comprehensively reflect the airtightness of the gas mask, ensuring that the gas mask can maintain a tight fit at various head rotation angles to prevent leakage of toxic gases. The top of the rotating shaft of the motor 2 is fixedly connected with a first gear 12, and the top of the base plate 1 is rotatably connected with a support column 15, and the side wall of the support column 15 is fixed A second gear 14 is installed, and the second gear 14 is meshed and connected with the first gear 12. A rotating block 13 is fixedly connected to the top of the support column 15. The first gear 12 drives the second gear 14 to rotate, so that the rotating block 13 rotates inside the head mold 7, thereby simulating the changes of the muscles on both sides of the cheeks of a person when speaking. A rotating opening corresponding to the support column 15 is opened through the bottom of the head mold 7 to avoid the head mold 7 being stuck by the support column 15 when rotating. By simulating the changes of the muscles on both sides of the cheeks of a person when speaking, the influence of facial muscle movement on the sealing of the mask when the gas mask is actually used can be more realistically reflected, and the performance of the gas mask can be more comprehensively evaluated to ensure that it can maintain a good sealing effect under various facial movements and avoid leakage problems caused by muscle movement. After this more comprehensive and more realistic detection, the reliability of the gas mask is improved, and the user can have more trust in the protective performance of the gas mask in actual use, thereby better protecting the user's life safety.

[0031] An air storage box 10 is fixedly installed on the top of the bottom plate 1. The interior of the air storage box 10 is filled with neon gas. Neon gas is an inert gas and is harmless to the human body. Using neon gas as the detection medium ensures the safety of the detection process. A two-way air pump 9 is fixedly installed on the top of the air storage box 10. The two-way air pump 9 is connected to the air storage box 10. The side of the two-way air pump 9 close to the head mold 7 is fixedly connected with an air intake pipe 8. The air intake pipe 8 runs through the head mold 7. The top of the head mold 7 is connected with the rotating air outlet pipe 16 at one end of the air inlet pipe 8 away from the two-way air pump 9, and the rotating air outlet pipe 16 extends out of the head mold 7 at one end away from the air inlet pipe 8. A power supply 20 is arranged inside the head mold 7, and the head mold 7 is made of insulating material. Two sets of electrode assemblies 11 are connected to the side walls of the power supply 20, and the electrode assemblies 11 are arranged outside the head mold 7, and are located on the same side of the head mold 7 as the air outlet of the rotating air outlet pipe 16. After the two-way air pump 9 is started, the neon gas in the air storage box 10 is extracted through the air inlet pipe 8 and the rotating air outlet pipe 16 into the sealed space formed by the gas mask and the head mold 7. After a period of time, the two-way air pump 9 is turned off. Since the density of neon gas is less than that of air, after standing for a period of time, the neon gas will be concentrated above the gas mask, and the air will be concentrated below the gas mask. Subsequently, the exhalation valve of the gas mask is opened first, and then the two-way air pump 9 is opened, so that the air is discharged from the gas mask, thereby ensuring the concentration of neon gas in the gas mask. The neon gas is used as a detection The concentration of the measuring medium is crucial to the accuracy of the test results. The concentration of neon in the gas mask is ensured to be able to more clearly observe the phenomenon of neon escape, so as to more accurately judge whether the gas mask is damaged. The light emitted by the neon after being energized is red or orange-red, and the color is bright and stable. The concentration of neon in the gas mask is ensured to ensure that the red light formed in a dark environment is more obvious, thereby improving the visual effect. After exhausting the air, the exhalation valve of the gas mask is closed, and the power supply 20 is turned on. An electric field is formed at both ends of the electrode assembly 11. When the gas mask is damaged, the obvious light source formed by the escape of neon can be easily identified, thereby ensuring the accuracy of the detection. The neon emits red or orange-red light after being energized. This color has a high visual recognition, especially in a dark environment. The light source is more obvious and easy to observe. At the same time, there is no need to disassemble or destroy the gas mask, thereby ensuring the integrity and reusability of the gas mask, thereby enhancing the practicality of the equipment.

[0032] A lifting device 3 is fixedly installed on the top of the base plate 1, and a marking device 6 is fixedly installed on the top of the lifting device 3. The marking device 6 corresponds to the rotating air outlet pipe 16. The head mold 7 is located between the marking device 6 and the air storage box 10. A plurality of marking rods 23 are fixedly installed on the side of the marking device 6 close to the head mold 7. The marking rods 23 are made of phototropic material, such as light-responsive polymers. Fluorescent substances are coated on the marking rods 23. When energized neon gas escapes from the damaged part of the gas mask, the marking rods 23 made of phototropic material extend toward the light source, i.e., the neon glowing part, and mark the damaged part with the fluorescent substance thereon, so that maintenance personnel can intuitively find the damaged position of the gas mask without tedious search or detection. The extension of the marking rods 23 and the fluorescent marking can quickly and accurately mark the damaged area, thereby helping maintenance personnel to quickly determine the parts or areas that need to be repaired or replaced, thereby improving maintenance efficiency. Since the damaged position can be quickly located, maintenance personnel can perform maintenance more accurately, avoiding unnecessary disassembly and replacement, thereby reducing maintenance costs.

[0033] The electrode assembly 11 includes a mesh electrode 17, which is connected to a power source 20 via a fastener 19. A needle electrode 18 is fixedly connected to the side wall of the mesh electrode 17. The mesh electrode 17 has a larger specific surface area due to its unique mesh structure, which enables it to more effectively capture and convert energy during the power generation process and generate a stronger electric field. It also helps to improve the uniformity of the electric field distribution, reduce the problem of excessive concentration of electric field strength in local areas, and improve the luminous intensity and uniformity of neon gas. The tip shape of the needle electrode 18 gives it a significant tip effect, that is, the electric field strength will be significantly enhanced in the tip area. This effect helps to generate a stronger electric field in the neon gas near the mask part, thereby enhancing the luminous intensity of the neon gas. Since the electric field is concentrated in the tip area of ​​the needle electrode 18, the luminescence of the neon gas will also be more concentrated and directional, making it easier for light to be captured by equipment such as the marking rod 23, thereby improving the recognition efficiency and accuracy of the system.

[0034] A first gas storage part 4 and a second gas storage part 5 are arranged on the top of the bottom plate 1. The first gas storage part 4 and the second gas storage part 5 have the same components, both consisting of a gas tank, a gas detector and a protective shell. The gas tank is filled with neon gas. The first gas storage part 4 and the second gas storage part 5 are located on the side of the marking device 6 away from the head mold 7. The side wall of the first gas storage part 4 is fixedly connected with a first connecting sleeve 21, and the first connecting sleeve 21 corresponds to the exhalation valve of the gas mask. The side wall of the second gas storage part 5 is fixedly connected with a second connecting sleeve 22, and the second connecting sleeve 22 corresponds to the inhalation valve of the gas mask. The first connecting sleeve 21 and the second connecting sleeve 22 penetrate the marking device 6 and are fixedly connected to the marking device 6. The first connecting sleeve 21 and the second connecting sleeve 22 are made of soft materials, which facilitates the lifting device 3 to adjust the height of the marking device 6 and check the gas mask. When checking the air tightness of the inhalation valve and the exhalation valve of the tool, the first connecting sleeve 21 and the second connecting sleeve 22 are connected to the exhalation valve and the inhalation valve respectively, and neon gas is blown into the gas mask by the two-way air pump 9, and the gas detector in the first gas storage part 4 detects the concentration change of neon gas in the gas tank of the first gas storage part 4, so as to judge the sealing of the exhalation valve, and then the two-way air pump 9 is used to extract the neon gas in the gas mask, and the gas detector in the second gas storage part 5 detects the concentration change of neon gas in the gas tank of the second gas storage part 5, so as to judge the sealing of the inhalation valve. Since neon gas is an inert gas with stable chemical properties and will not react chemically with other elements or compounds, it will not affect the gas filtering of the gas mask, thereby ensuring the accuracy of the inspection results, and at the same time eliminating the potential chemical reaction risks that may be introduced by the use of other gases.

[0035] In the present invention, the characteristics of neon gas are mainly used to detect the air tightness of the gas mask. When performing the air tightness test of the gas mask, the elastic headband of the gas mask is first passed around the rear of the head mold 7, and the headband is tightened to a suitable position, ensuring that the outlet of the rotating air outlet pipe 16 is on the same horizontal plane as the exhalation valve and the inhalation valve of the gas mask, and the electrode assemblies 11 on both sides are located in the middle of the mask, and then the mask is closely fitted to the head mold 7, and the tightness of the headband is appropriately adjusted according to the size of the head mold 7.

[0036] The first thing to check is how well the gas mask fits the face and whether there is any damage on the surface of the mask. After the gas mask is put on the head mold 7, the exhalation valve and the inhalation valve of the gas mask are covered first, and the two-way air pump 9 is started. The two-way air pump 9 will extract neon gas from the air storage box 10 and blow it into the gas mask through the air inlet pipe 8 and the rotating air outlet pipe 16. After a period of time, the two-way air pump 9 is closed and the gas mask is left to stand for a period of time. Since the density of neon gas is less than that of air, the neon gas will be concentrated above the gas mask after standing, while the air will be distributed below the gas mask. At this time, the exhalation valve of the gas mask is opened first, and then the two-way air pump 9 is opened. At this time, the neon gas blown out is more likely to discharge the remaining air out of the gas mask, ensuring the concentration of neon gas in the gas mask. After the air is discharged, the exhalation valve of the gas mask is covered, and then the power supply 20 is turned on. When the two ends of the electrode assembly 11 are connected to the power supply 20, an electric field will be formed at both ends of the electrode assembly 11. The light emitted by the neon gas after being energized is red or orange-red, and the color is bright and stable. This color has a high visual recognition. When the entire device is in a dark environment, if the mask part of the gas mask is damaged, the red light emitted by the neon gas can escape through the damaged part, thus forming an obvious light source in the dark environment. This phenomenon can be used to check whether the gas mask is intact.

[0037] During the detection, the lifting device 3 will drive the marking device 6 to move up and down. There is a marking rod 23 inside the marking device 6. The marking rod 23 is made of phototropic material, such as light-responsive polymer. The marking rod 23 is coated with fluorescent substance. When the red light emitted by neon gas escapes from the damaged part, the marking rod 23 will extend toward the light source. After approaching, the fluorescent substance on the marking rod 23 will mark the damaged part. The fluorescent substance at the damaged part can continue to glow for several hours or even more than ten hours after absorbing the ultraviolet rays in the emitted light. At this time, the specific location of the damaged part of the gas mask can be clearly recorded, and the maintenance personnel can directly locate the problem area, avoiding the tedious steps of checking each area on the mask, which greatly saves maintenance time.

[0038] In the electrode assembly 11, the mesh electrode 17 has a larger specific surface area, which enables the mesh electrode 17 to capture and convert energy more effectively during the power generation process and generate a stronger electric field. In addition, the structure of the mesh electrode 17 also makes the electric field distribution more uniform, which is beneficial to enhancing the luminescence of neon gas. The needle-shaped electrode 18, due to its unique shape and structure, makes the electric field concentrated in its tip area, so that the neon gas close to the mask part can emit stronger light, making it easier to be captured by the marking rod 23.

[0039] In addition, when using neon light to detect whether the mask surface is damaged, the motor 2 can also be started, and the motor 2 will drive the entire head mold 7 to slowly swing left and right, simulating a person turning his head to observe the fit between the mask and the face, and can check whether the mask is loose or has gaps at different angles, thereby causing leakage. In addition, the motor 2 will also rotate the first gear 12, thereby driving the second gear 14 to rotate, and the second gear 14 will drive the rotating block 13 to rotate inside the head mold 7. When the rotating block 13 rotates back and forth inside the head mold 7, it will drive the cheek part of the head mold 7 to rise and fall, thereby simulating the changes in the muscles on both sides of the cheeks when a person speaks, so that the airtightness of the gas mask can be detected in various situations.

[0040] After the face mask of the gas mask has been detected, the exhalation valve and the inhalation valve of the gas mask are detected. The exhalation valve and the inhalation valve are covered, and then the first connecting sleeve 21 and the second connecting sleeve 22 are respectively sleeved on the exhalation valve and the inhalation valve. The first gas storage part 4 and the second gas storage part 5 both include a gas tank, a gas detector and a protective shell. The gas tank is also filled with neon gas. At this time, the two-way air pump 9 is started, and neon gas is first blown into the gas mask. The gas detector in the first gas storage part 4 will detect the concentration change of neon gas in the gas tank, thereby judging the sealing property of the exhalation valve. When it is necessary to detect the sealing property of the inhalation valve, the two-way air pump 9 can be started to extract neon gas from the gas mask. The gas detector in the second gas storage part 5 can also detect the concentration change of neon gas in the gas tank, thereby judging the sealing property of the inhalation valve. In addition, since neon gas is an inert gas, its chemical property is very stable and does not react chemically with other elements or compounds, so the influence of the gas filter box of the gas mask on the concentration of neon gas can be ignored.

[0041] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A gas mask air tightness detection device, comprising a bottom plate (1), characterized in that: The invention also comprises a head mold (7), wherein the head mold (7) is mounted on the top of the base plate (1) via a driving assembly, wherein the driving assembly is used to drive the head mold (7) to rotate, wherein an air storage box (10) is fixedly mounted on the top of the base plate (1), wherein the interior of the air storage box (10) is filled with neon gas, wherein a conveying assembly is connected between the air storage box (10) and the head mold (7), wherein a marking device (6) is arranged on a side of the head mold (7) away from the air storage box (10), wherein a plurality of marking rods (23) are arranged on a side of the marking device (6) close to the head mold (7), wherein the marking rods (23) are made of a phototropic material and are coated with a fluorescent substance, and wherein two groups of electrode assemblies (11) are arranged on the side wall of the head mold (7), wherein the electrode assemblies (11) are used to energize the neon gas and cause it to emit light.

2. A gas mask air tightness detection device according to claim 1, characterized in that: The driving assembly comprises a motor (2) fixedly mounted on the top of the base plate (1); a rotating shaft of the motor (2) passes through the bottom of the head mold (7) and is fixedly connected to the head mold (7).

3. A gas mask air tightness detection device according to claim 2, characterized in that: The top of the bottom plate (1) is rotatably connected to a support column (15), a rotation opening is formed through the bottom of the head mold (7), and the support column (15) passes through the rotation opening and extends into the head mold (7), the top of the support column (15) is fixedly connected to a rotation block (13), and a connecting component is provided between the rotation shaft of the motor (2) and the support column (15).

4. A gas mask air tightness detection device according to claim 3, characterized in that: The connecting assembly comprises a first gear (12) and a second gear (14), wherein the first gear (12) is fixedly mounted on the top of the rotating shaft of the motor (2), and the second gear (14) is fixedly mounted on the side wall of the supporting column (15), and the first gear (12) is meshed with the second gear (14).

5. A gas mask air tightness detection device according to claim 1, characterized in that: The conveying assembly comprises a two-way air pump (9) fixedly mounted on the top of an air storage box (10), the two-way air pump (9) being in communication with the air storage box (10), an air inlet pipe (8) being fixedly connected to the side wall of the two-way air pump (9), an end of the air inlet pipe (8) away from the two-way air pump (9) passing through the top of the head mold (7) and being rotatably connected to the head mold (7), a rotating air outlet pipe (16) being rotatably connected to the bottom of the air inlet pipe (8), an end of the rotating air outlet pipe (16) away from the air inlet pipe (8) passing through the side wall of the head mold (7) and corresponding to the marking device (6).

6. A gas mask air tightness detection device according to claim 1, characterized in that: A lifting device (3) is fixedly mounted on the top of the bottom plate (1); the lifting device (3) is located below the marking device (6) and is fixedly connected to the marking device (6).

7. A gas mask air tightness detection device according to claim 1, characterized in that: A first gas storage portion (4) and a second gas storage portion (5) are provided on the top of the bottom plate (1); the first gas storage portion (4) and the second gas storage portion (5) are located on a side of the marking device (6) away from the head mold (7); the first gas storage portion (4) and the second gas storage portion (5) are both composed of a gas storage tank, a gas detector and a protective shell, and the gas storage tank is filled with neon gas.

8. A gas mask air tightness detection device according to claim 7, characterized in that: The side wall of the first gas storage portion (4) is fixedly connected to a first connecting sleeve (21), the first connecting sleeve (21) passes through the marking device (6) and is fixedly connected to the marking device (6), the first connecting sleeve (21) corresponds to the exhalation valve of the gas mask, and the first connecting sleeve (21) is made of soft material.

9. A gas mask air tightness detection device according to claim 7, characterized in that: The side wall of the second gas storage portion (5) is fixedly connected to a second connecting sleeve (22), the second connecting sleeve (22) passes through the marking device (6) and is fixedly connected to the marking device (6), the second connecting sleeve (22) corresponds to the air inhalation valve of the gas mask, and the second connecting sleeve (22) is made of soft material.

10. A gas mask air tightness detection device according to claim 1, characterized in that: A power source (20) is arranged inside the head mold (7), and the electrode assembly (11) comprises a mesh electrode (17). The mesh electrode (17) is connected to the power source (20) via a fastener (19), and a needle electrode (18) is fixedly connected to the side wall of the mesh electrode (17).

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