Concentration detection device for oxygen production

Abstract

The invention discloses a concentration detection device for oxygen production, and belongs to the technical field of oxygen detection.The concentration detection device comprises a main body module and a high-efficiency detection module.The main body module comprises a bottom plate, a sliding groove is formed in the top of the bottom plate, and a moving table is movably connected into the sliding groove; a recording device is fixedly connected to the top of the bottom plate, the high-efficiency detection module comprises a convex plate and a driving assembly which are fixedly connected to the top of the bottom plate, and a lifting movable assembly is arranged in the convex plate; through the arrangement of the lifting movable assembly, the detection assembly, the intermittent transmission assembly, the driving assembly, the displacement assembly, the oxygen sample assembly and the moving table, rapid detection of different oxygen samples can be achieved, when many samples need to be detected, detection is more automatic, the burden of workers is relieved, and the overall detection efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of oxygen detection, and more particularly to a concentration detection device for oxygen production. Background Art

[0002] Oxygen is an important component of the Earth's atmosphere, accounting for about 21% of the volume of air. As a colorless, tasteless and odorless gas, oxygen is essential to life on Earth and is involved in the respiration and energy production of most organisms. At present, the commercial use of oxygen is becoming more and more extensive. In order to ensure the quality of oxygen during the oxygen production process, it is usually necessary to use a concentration detection device to detect the concentration of oxygen.

[0003] According to the search, the patent number CN220568743U discloses an oxygen concentration detector, including an oxygen concentration detector body, a shell is installed on the rear side of the oxygen concentration detector body, the inner cavity of the shell is symmetrically provided with slide grooves at both ends, the left and right ends of the outer inner cavity of the slide groove are provided with first permanent magnets, the inner cavity of the slide groove is embedded with a slider, the upper and lower ends of the slider are provided with second permanent magnets, and the right side of the slider is provided with a back plate. The oxygen concentration detector has a simple structure and reasonable design. When placed and stored, it can not only shield the detection probe to avoid collision, damage and blockage caused by external influences, and ensure the normal use of the equipment, but also, when in use, the detected data can be quickly recorded, which is easy to operate, flexible to use, and highly practical, meeting the use needs in the existing market.

[0004] With regard to the above-mentioned related technologies, currently, when oxygen is detected, it is usually detected by an oxygen concentration detector of the above-mentioned form. During the detection, oxygen is usually stored in a sample tube, and the oxygen sample needs to be docked with the detection tube above the detector to realize the detection of oxygen. Although the above-mentioned oxygen concentration detector can realize the detection of oxygen, the staff needs to perform frequent auxiliary operations during the detection process. When faced with a large number of oxygen samples that need to be tested for concentration, it will cause a heavy burden on the staff, and continuous and rapid detection cannot be achieved, and the detection efficiency is low. Therefore, a concentration detection device for oxygen production is proposed. Summary of the invention

[0005] In order to solve the above problems, the present invention provides a concentration detection device for oxygen production, which adopts the following technical solution: A concentration detection device for oxygen production, comprising a main body module and a high-efficiency detection module, wherein the main body module comprises a bottom plate, a sliding groove is provided on the top of the bottom plate, a mobile platform is movably connected inside the sliding groove, a recording device is fixedly connected to the top of the bottom plate, the high-efficiency detection module comprises a convex plate and a driving component fixedly connected to the top of the bottom plate, a lifting movable component is arranged inside the convex plate, a detection component is arranged on the lifting movable component, the recording device is electrically connected to the detection component, an intermittent transmission component is arranged on one side of the convex plate, the intermittent transmission component is connected to the lifting movable component and the driving component, a displacement component is arranged between the top of the bottom plate and the convex plate, the displacement component is adapted to the driving component, a plurality of oxygen sample components are arranged in a straight line and equidistantly on the top of the mobile platform, and the displacement component is connected to the mobile platform.

[0006] Furthermore, the lifting movable component includes a lifting groove opened inside the convex plate, the interior of the lifting groove is slidably connected with an H-shaped slider, one side of the H-shaped slider is fixedly connected to a lifting platform, the other side of the H-shaped slider is fixedly connected to a hollow frame, and the bottom of the lifting platform is fixedly connected to a valve opening rack.

[0007] Furthermore, the lifting movable component also includes an N-shaped frame fixedly connected to one side of the convex plate, the N-shaped frame is internally rotatably connected to two first rotating shafts, one end of the two first rotating shafts are fixedly connected to sprockets, a chain is transmission-connected between the outer surfaces of the two sprockets, the outer surface of the chain is fixedly connected to a lifting shaft, and the lifting shaft is movably connected to the inside of the hollow frame.

[0008] Furthermore, the detection component includes an installation slot opened at one end of the lifting platform, the interior of the installation slot is movably connected with a mounting card plate, one end of the mounting card plate is fixedly connected with a detector, the bottom of the detector is fixedly connected with a detection tube, a threaded pin is movably inserted between the lifting platform and the interior of the mounting card plate, and the outer surface of the threaded pin is threadedly connected with two nuts.

[0009] Furthermore, the intermittent transmission assembly includes a small transmission roller fixedly connected to the other end of one of the first rotating shafts, one side of the convex plate is rotatably connected to the second rotating shaft and the third rotating shaft, the outer surface of the second rotating shaft is fixedly connected to a large transmission roller, the outer surface of the large transmission roller and the outer surface of the small transmission roller are connected by a transmission belt, one end of the second rotating shaft is fixedly connected to a four-corner steering groove wheel, the outer surface of the third rotating shaft is fixedly connected to a driving turntable, the outer surface of the driving turntable is movably connected to the outer surface of the four-corner steering groove wheel, and one end of the third rotating shaft is fixedly connected to a driving gear.

[0010] Furthermore, the driving assembly includes a driving motor fixedly connected to the top of the base plate, the output shaft of the driving motor is fixedly connected to an incomplete gear, and the outer surface of the incomplete gear is meshed with the outer surface of the driving gear.

[0011] Furthermore, the displacement assembly includes a mounting seat fixedly connected to the top of the base plate, a screw rod is rotatably connected between the mounting seat and the inside of the convex plate, one end of the screw rod is fixedly connected to a connecting gear, the connecting gear is adapted to the outer surface of the incomplete gear, the outer surface of the screw rod is threadedly connected to a connecting plate, and the connecting plate is fixedly connected to the outer surface of the movable platform.

[0012] Furthermore, the oxygen sample assembly includes a limit groove opened on the top of the movable platform, the limit groove is internally movably connected to a limit plate, the limit plate is internally fixedly connected to a sample tank, the top of the sample tank is fixedly connected to an air outlet pipe, the air outlet pipe is provided with a valve, the valve is provided with a valve opening rod, one end of the valve opening rod is fixedly connected to a valve opening gear, and the valve opening gear is adapted to the valve opening rack.

[0013] Furthermore, the oxygen sample assembly also includes a sealing groove opened at the top of the valve, the sealing groove is located outside the air outlet pipe, and a sealing gasket is fixedly connected to the bottom of the inner wall of the sealing groove.

[0014] Furthermore, the main body module also includes two track grooves both opened at the bottom of the inner wall of the sliding groove, and the bottom of the moving platform is movably connected with a plurality of rollers, and the plurality of rollers are respectively in contact with the bottom of the inner walls of the two track grooves.

[0015] In summary, the present invention includes the following beneficial technical effects: (1) The present invention can realize rapid detection of different oxygen samples by setting up a lifting component, a detection component, an intermittent transmission component, a driving component, a displacement component, an oxygen sample component and a moving platform. When a large number of samples need to be detected, the detection is more automated, which reduces the burden on the staff and improves the overall detection efficiency. (2) The present invention provides a sealing groove and a sealing gasket, so that the detection tube and the air outlet pipe are more tightly sealed when connected, thereby avoiding leakage problems and improving detection stability; (3) The present invention provides a track groove and a roller. When the moving platform moves, the roller will roll inside the track groove, thereby avoiding wear on the bottom of the moving platform and improving the stability of the device. (4) The present invention allows the detector to be disassembled by installing the clamping plate, the threaded pin and the nut, and is easy to replace when damaged, thereby making the detection device more flexible. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the structure of the displacement assembly of the present invention; Figure 3 It is a schematic diagram of the exploded structure of the lifting movable assembly of the present invention; Figure 4 It is a schematic diagram of the explosion structure of the detection assembly of the present invention; Figure 5 It is a schematic diagram of the explosion structure of the oxygen sample assembly of the present invention; Figure 6 For the present invention Figure 5 The enlarged structural diagram at A in the middle; Figure 7 It is a schematic diagram of the roller position of the present invention.

[0017] Description of the numbers in the figure: 100, main body module; 110, bottom plate; 120, sliding groove; 130, moving platform; 140, recording device; 150, track groove; 160, roller; 200, high-efficiency detection module; 210, convex plate; 220, lifting movable assembly; 221, lifting slot; 222, H-shaped slider; 223, lifting platform; 224, valve opening rack; 225, hollow frame; 226, n-shaped frame; 227, first rotating shaft; 228, sprocket; 229, chain; 2210, lifting shaft; 230, detection assembly; 231, mounting slot; 232, mounting card plate; 233, detector; 234, detection tube; 235, threaded pin; 240, intermittent transmission assembly; 241, small transmission roller; 242, second rotating shaft; 243, large transmission Moving roller; 244, four-corner steering groove wheel; 245, transmission belt; 246, third rotating shaft; 247, driving turntable; 248, driving gear; 250, driving assembly; 251, driving motor; 252, incomplete gear; 260, displacement assembly; 261, mounting seat; 262, screw rod; 263, connecting gear; 264, connecting plate; 270, oxygen sample assembly; 271, limit groove; 272, limit plate; 273, sample tank; 274, outlet pipe; 275, valve; 276, valve opening stem; 277, valve opening gear; 278, sealing groove; 279, sealing gasket. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work are within the scope of protection of the present invention.

[0019] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0020] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "mounted / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] The following is combined with Figure 1-7 The present invention is described in further detail.

[0022] A concentration detection device for oxygen production, comprising a main body module 100 and a high-efficiency detection module 200, wherein the main body module 100 comprises a bottom plate 110, a sliding groove 120 is provided on the top of the bottom plate 110, a moving platform 130 is movably connected inside the sliding groove 120, a recording device 140 is fixedly connected to the top of the bottom plate 110, and the high-efficiency detection module 200 comprises a convex plate 210 fixedly connected to the top of the bottom plate 110 and a driving component 250, a lifting movable component 220 is provided inside the convex plate 210, and the lifting movable component A detection component 230 is arranged on 220, and the recording device 140 is electrically connected to the detection component 230. An intermittent transmission component 240 is arranged on one side of the convex plate 210, and the intermittent transmission component 240 is connected to the lifting movable component 220 and the driving component 250. A displacement component 260 is arranged between the top of the bottom plate 110 and the convex plate 210, and the displacement component 260 is adapted to the driving component 250. A plurality of oxygen sample components 270 are arranged in a straight line and at equal distances on the top of the moving platform 130, and the displacement component 260 is connected to the moving platform 130.

[0023] When in use, the oxygen samples to be tested will be stored in the plurality of oxygen sample assemblies 270 respectively. The plurality of oxygen sample assemblies 270 are placed on the top of the mobile platform 130. At this time, one of the oxygen sample assemblies 270 is located below the detection assembly 230. The drive assembly 250 is turned on. The drive assembly 250 will first drive the intermittent drive assembly 240 to perform two activities. The first activity of the intermittent drive assembly 240 will drive the lifting and lowering assembly 220 and the detection assembly 230 to descend. The lifting and lowering assembly 220 will drive one of the oxygen sample assemblies 270 to open. At the same time, the detection assembly 230 will be connected to one of the oxygen sample assemblies 270, so that the detection assembly 230 can detect the oxygen sample in one of the oxygen sample assemblies 270. The oxygen sample is tested for concentration. After the test is completed, the intermittent transmission component 240 will perform a second activity. At this time, the detection component 230 and the lifting and lowering component 220 are reset, thereby completing the detection of an oxygen sample component 270. The subsequent driving component 250 separates from the intermittent transmission component 240 to transmit the displacement component 260. The displacement component 260 will drive the moving platform 130 to slide, thereby allowing another oxygen sample component 270 to move to the bottom of the detection component 230. The subsequent driving component 250 drives the intermittent transmission component 240 again to complete the detection of the next oxygen sample component 270. The information detected by the detection component 230 will be transmitted to the recording device 140, and the recording device 140 will make corresponding records.

[0024] The lifting movable assembly 220 includes a lifting groove 221 opened inside the convex plate 210, an H-shaped slider 222 is slidably connected inside the lifting groove 221, a lifting platform 223 is fixedly connected to one side of the H-shaped slider 222, a hollow frame 225 is fixedly connected to the other side of the H-shaped slider 222, and a valve opening rack 224 is fixedly connected to the bottom of the lifting platform 223. The lifting movable assembly 220 also includes an n-shaped frame 226 fixedly connected to one side of the convex plate 210, and the n-shaped frame 226 is internally rotatably connected to two first rotating shafts 227. The two first rotating shafts One end of each of the two sprockets 227 is fixedly connected to a sprocket 228, and a chain 229 is transmission-connected between the outer surfaces of the two sprockets 228, and a lifting shaft 2210 is fixedly connected to the outer surface of the chain 229, and the lifting shaft 2210 is movably connected to the inside of the hollow frame 225. The detection component 230 includes a mounting slot 231 opened at one end of the lifting platform 223, and a mounting card plate 232 is movably connected to the inside of the mounting slot 231, and a detector 233 is fixedly connected to one end of the mounting card plate 232, and a detection tube 234 is fixedly connected to the bottom of the detector 233. A threaded pin 235 is movably inserted between the platform 223 and the interior of the mounting card plate 232, and the outer surface of the threaded pin 235 is threadedly connected to two nuts. The intermittent transmission assembly 240 includes a small transmission roller 241 fixedly connected to the other end of one of the first rotating shafts 227, and one side of the convex plate 210 is rotatably connected to the second rotating shaft 242 and the third rotating shaft 246. The outer surface of the second rotating shaft 242 is fixedly connected to a large transmission roller 243, and a transmission belt 245 is transmission-connected between the outer surface of the large transmission roller 243 and the outer surface of the small transmission roller 241. One end of the second rotating shaft 242 is fixedly connected to the four-corner steering groove wheel 244, the outer surface of the third rotating shaft 246 is fixedly connected to the driving turntable 247, the outer surface of the driving turntable 247 is movably connected to the outer surface of the four-corner steering groove wheel 244, one end of the third rotating shaft 246 is fixedly connected to the driving gear 248, the driving assembly 250 includes a driving motor 251 fixedly connected to the top of the base plate 110, the output shaft of the driving motor 251 is fixedly connected to the incomplete gear 252, and the outer surface of the incomplete gear 252 is meshed with the outer surface of the driving gear 248.

[0025] Turn on the driving motor 251 to drive the incomplete gear 252 to rotate. The incomplete gear 252 will drive the driving gear 248 to rotate twice. When the driving gear 248 rotates for the first week, it will drive the driving turntable 247 to drive the four-corner steering groove wheel 244 to rotate ninety degrees. The four-corner steering groove wheel 244 will drive the large transmission roller 243 to drive the transmission belt 245. The transmission belt 245 drives the small transmission roller 241 to rotate. The small transmission roller 241 transmits the chain 229 through one of the first rotating shafts 227 and the sprocket 228. The chain 229 will drive the lifting shaft 2210 to push the hollow frame 225. The hollow frame 225 will drive the valve opening rack 224 and the detection tube 234 to descend. When the valve opening rack 224 descends, it will be connected to the valve opening gear 277. At this time, the detection tube 234 will be sleeved on the outer surface of the outlet pipe 274, and the valve opening rack 224 will drive the valve opening gear 277. Subsequently, the valve opening gear 277 drives the valve opening rod 276 to rotate to open the valve 275, and the detection tube 234 will be inserted into the sealing groove 278 and contact the sealing gasket 279, so that the detector 233 can detect the concentration of the oxygen sample in one of the sample tanks 273 through the detection tube 234. After the detection is completed, the driving turntable 247 drives the four-corner steering groove wheel 244 for the second time, so that the large driving roller 243 will move for the second time. At this time, the detection tube 234 and the valve opening rack 224 are reset, and the valve opening rack 224 drives the valve opening gear 277 to drive the valve 275 to close, thereby completing the detection of an oxygen sample assembly 270.

[0026] The displacement assembly 260 includes a mounting seat 261 fixedly connected to the top of the bottom plate 110, a screw rod 262 is rotatably connected between the mounting seat 261 and the inside of the convex plate 210, one end of the screw rod 262 is fixedly connected to a connecting gear 263, the connecting gear 263 is adapted to the outer surface of the incomplete gear 252, the outer surface of the screw rod 262 is threadedly connected to a connecting plate 264, the connecting plate 264 is fixedly connected to the outer surface of the moving platform 130, and the oxygen sample assembly 270 includes a limiting groove 271 opened on the top of the moving platform 130, and the internal movable clamping of the limiting groove 271 is limited. The limiting plate 272 has a sample tank 273 fixedly connected to the inside of the limiting plate 272, and an air outlet pipe 274 fixedly connected to the top of the sample tank 273. The air outlet pipe 274 is provided with a valve 275, and a valve opening rod 276 is provided on the valve 275. One end of the valve opening rod 276 is fixedly connected to a valve opening gear 277, and the valve opening gear 277 is matched with the valve opening rack 224. The oxygen sample assembly 270 also includes a sealing groove 278 opened on the top of the valve 275, and the sealing groove 278 is located outside the air outlet pipe 274. The bottom of the inner wall of the sealing groove 278 is fixedly connected to a sealing gasket 279. Subsequently, the incomplete gear 252 separates from the driving gear 248 to transmit the connecting gear 263, and the connecting gear 263 will drive the screw rod 262 to rotate. The screw rod 262 transmits the connecting plate 264 to drive the moving platform 130 to slide, so that another air outlet pipe 274 moves to the bottom of the detection tube 234. Subsequently, the incomplete gear 252 transmits the driving gear 248 again to complete the detection of the next oxygen sample component 270, thereby realizing continuous and rapid detection. The information detected by the detection component 230 will be transmitted to the recording device 140, and the recording device 140 will make corresponding records.

[0027] The main body module 100 further includes two track grooves 150 both opened at the bottom of the inner wall of the sliding groove 120 . The bottom of the moving platform 130 is movably connected with a plurality of rollers 160 , which are respectively in contact with the bottom of the inner walls of the two track grooves 150 .

[0028] When the moving platform 130 is displaced, the roller 160 will roll inside the track groove 150 , thereby preventing the bottom of the moving platform 130 from being worn and improving the stability of the device.

[0029] The implementation principle of the embodiment of the present invention is as follows: when in use, the oxygen samples to be tested will be stored in the interior of multiple sample tanks 273 respectively, and the multiple limiting plates 272 will be respectively inserted into the interior of multiple limiting grooves 271. At this time, one of the valve opening gears 277 is located below the valve opening rack 224, and one of the air outlet pipes 274 is located below the detection tube 234. The driving motor 251 is turned on to drive the incomplete gear 252 to rotate, and the incomplete gear 252 will drive the driving gear 248 to rotate twice. When the driving gear 248 rotates for the first week, it will drive the driving turntable 247 to drive the four-corner steering groove wheel 244 to rotate ninety degrees, and the four-corner steering groove wheel 244 will drive the large transmission roller 243 The transmission belt 245 drives the small transmission roller 241 to rotate. The small transmission roller 241 drives the chain 229 through one of the first rotating shafts 227 and the sprocket 228. The chain 229 will drive the lifting shaft 2210 to push the hollow frame 225. The hollow frame 225 will drive the valve opening rack 224 and the detection tube 234 to descend. When the valve opening rack 224 descends, it will be connected with the valve opening gear 277. At this time, the detection tube 234 will be sleeved on the outer surface of the outlet pipe 274. At this time, the valve opening rack 224 will drive the valve opening gear 277. Subsequently, the valve opening gear 277 drives the valve opening rod 276 to rotate to open the valve 275, and the detection tube 234 will be inserted into the sealing groove 278 and the sealing gasket 27 9 contact, so that the detector 233 detects the concentration of the oxygen sample in one of the sample tanks 273 through the detection tube 234. After the detection is completed, the driving turntable 247 drives the four-corner steering groove wheel 244 for the second time, so that the large driving roller 243 will move for the second time. At this time, the detection tube 234 and the valve opening rack 224 are reset, and the valve opening rack 224 drives the valve opening gear 277 to drive the valve 275 to close, thereby completing the detection of an oxygen sample assembly 270. Subsequently, the incomplete gear 252 is separated from the driving gear 248 to drive the connecting gear 263, and the connecting gear 263 will drive the screw rod 262 to rotate, and the screw rod 262 drives the connecting plate 264 to drive the moving platform 130 to slide, thereby Another air outlet pipe 274 is moved to the bottom of the detection tube 234, and the incomplete gear 252 subsequently transmits the driving gear 248 again to complete the detection of the next oxygen sample component 270, thereby realizing continuous rapid detection. The information detected by the detection component 230 will be transmitted to the recording device 140, and the recording device 140 will make corresponding records. When the moving platform 130 is displaced, the roller 160 will roll inside the track groove 150, so as to avoid wear on the bottom of the moving platform 130 and improve the stability of the device. The detector 233 can be disassembled by disassembling the threaded pin 235 and pulling the mounting card plate 232 outward, so that the detector 233 can be disassembled and replaced easily when damaged.

[0030] The above are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A concentration detection device for oxygen production, comprising a main body module (100) and a high-efficiency detection module (200), characterized in that: The main body module (100) comprises a bottom plate (110), a sliding groove (120) is provided on the top of the bottom plate (110), a moving platform (130) is movably connected inside the sliding groove (120), and a recording device (140) is fixedly connected to the top of the bottom plate (110); The high-efficiency detection module (200) comprises a convex plate (210) fixedly connected to the top of the bottom plate (110) and a driving component (250); a lifting movable component (220) is arranged inside the convex plate (210); a detection component (230) is arranged on the lifting movable component (220); the recording device (140) is electrically connected to the detection component (230); an intermittent transmission component (240) is arranged on one side of the convex plate (210); the intermittent transmission component (240) is connected to the lifting movable component (220) and the driving component (250); a displacement component (260) is arranged between the top of the bottom plate (110) and the convex plate (210); the displacement component (260) is adapted to the driving component (250); a plurality of oxygen sample components (270) are arranged in a straight line and equidistantly on the top of the moving platform (130); the displacement component (260) is connected to the moving platform (130).

2. A concentration detection device for oxygen production according to claim 1, characterized in that: The lifting movable component (220) comprises a lifting groove (221) opened inside the convex plate (210), the interior of the lifting groove (221) is slidably connected to an H-shaped slider (222), one side of the H-shaped slider (222) is fixedly connected to a lifting platform (223), the other side of the H-shaped slider (222) is fixedly connected to a hollow frame (225), and the bottom of the lifting platform (223) is fixedly connected to a valve opening rack (224).

3. A concentration detection device for oxygen production according to claim 2, characterized in that: The lifting movable assembly (220) further comprises an n-shaped frame (226) fixedly connected to one side of the convex plate (210); the n-shaped frame (226) is internally rotatably connected to two first rotating shafts (227); one end of each of the two first rotating shafts (227) is fixedly connected to a sprocket (228); a chain (229) is transmission-connected between the outer surfaces of the two sprockets (228); the outer surface of the chain (229) is fixedly connected to a lifting shaft (2210); and the lifting shaft (2210) is movably connected to the interior of the hollow frame (225).

4. A concentration detection device for oxygen production according to claim 3, characterized in that: The detection assembly (230) comprises a mounting slot (231) provided at one end of the lifting platform (223); a mounting card plate (232) is movably connected inside the mounting slot (231); a detector (233) is fixedly connected to one end of the mounting card plate (232); a detection tube (234) is fixedly connected to the bottom of the detector (233); a threaded pin (235) is movably inserted between the lifting platform (223) and the inside of the mounting card plate (232); and two nuts are threadedly connected to the outer surface of the threaded pin (235).

5. A concentration detection device for oxygen production according to claim 4, characterized in that: The intermittent transmission assembly (240) comprises a small transmission roller (241) fixedly connected to the other end of one of the first rotating shafts (227); one side of the convex plate (210) is rotatably connected to the second rotating shaft (242) and the third rotating shaft (246); the outer surface of the second rotating shaft (242) is fixedly connected to a large transmission roller (243); the outer surface of the large transmission roller (243) and the outer surface of the small transmission roller (241) are transmission-connected by a transmission belt (245); one end of the second rotating shaft (242) is fixedly connected to a four-corner steering groove wheel (244); the outer surface of the third rotating shaft (246) is fixedly connected to a driving rotary disk (247); the outer surface of the driving rotary disk (247) is movably connected to the outer surface of the four-corner steering groove wheel (244); and one end of the third rotating shaft (246) is fixedly connected to a driving gear (248).

6. A concentration detection device for oxygen production according to claim 5, characterized in that: The driving assembly (250) comprises a driving motor (251) fixedly connected to the top of the bottom plate (110), the output shaft of the driving motor (251) being fixedly connected to an incomplete gear (252), the outer surface of the incomplete gear (252) being meshed with the outer surface of the driving gear (248).

7. A concentration detection device for oxygen production according to claim 6, characterized in that: The displacement assembly (260) comprises a mounting seat (261) fixedly connected to the top of the base plate (110); a screw rod (262) is rotatably connected between the mounting seat (261) and the inside of the convex plate (210); one end of the screw rod (262) is fixedly connected to a connecting gear (263); the connecting gear (263) is adapted to the outer surface of the incomplete gear (252); the outer surface of the screw rod (262) is threadedly connected to a connecting plate (264); and the connecting plate (264) is fixedly connected to the outer surface of the moving platform (130).

8. A concentration detection device for oxygen production according to claim 7, characterized in that: The oxygen sample assembly (270) comprises a limiting groove (271) provided on the top of the moving platform (130); the limiting groove (271) is movably engaged with a limiting plate (272); the limiting plate (272) is fixedly connected to the inside of a sample tank (273); the top of the sample tank (273) is fixedly connected to an air outlet pipe (274); the air outlet pipe (274) is provided with a valve (275); the valve (275) is provided with a valve opening rod (276); one end of the valve opening rod (276) is fixedly connected to a valve opening gear (277); the valve opening gear (277) is matched with the valve opening rack (224).

9. A concentration detection device for oxygen production according to claim 8, characterized in that: The oxygen sample assembly (270) further comprises a sealing groove (278) formed on the top of the valve (275), wherein the sealing groove (278) is located outside the gas outlet pipe (274), and a sealing gasket (279) is fixedly connected to the bottom of the inner wall of the sealing groove (278).

10. A concentration detection device for oxygen production according to claim 9, characterized in that: The main body module (100) further comprises two track grooves (150) both opened at the bottom of the inner wall of the sliding groove (120); the bottom of the moving platform (130) is movably connected to a plurality of rollers (160); the plurality of rollers (160) are respectively in contact with the bottom of the inner walls of the two track grooves (150).

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