A kind of exhaust pipe disinfection head for hyperbaric oxygen chamber

Abstract

The present invention provides an exhaust pipe disinfection seal for a hyperbaric oxygen chamber, which belongs to the technical field of air disinfection of a hyperbaric oxygen chamber. It includes a sealing pipe and a docking flange, an exhaust port, a working filter, an anti-leakage mechanism, and a replacement mechanism; the present invention sets a replacement mechanism, and drives the gear to rotate while the driving motor drives the anti-leakage mechanism to operate, and the spare sealing plate is moved horizontally by the rotation of the gear until the spare filter in the spare sealing plate completely overlaps with the initial position of the working filter, so that the replacement operation of the filter material inside the sealing pipe can be completed, and then the driving motor is stopped to allow the exhaust gas in the exhaust pipe to circulate normally, and the exhaust gas disinfection operation can be carried out normally with the replaced filter material, and the mutual cooperation between the above parts can ensure the airtightness of the filter material replacement process to prevent the exhaust gas leakage during the replacement from causing harm to the operator.

Description

Technical Field

[0001] The invention relates to the technical field of air disinfection of a hyperbaric oxygen chamber, and more particularly to an exhaust pipe disinfection cover for a hyperbaric oxygen chamber. Background Art

[0002] Hyperbaric oxygen therapy refers to a treatment method in which patients breathe high-concentration oxygen in a hyperbaric oxygen chamber with a pressure higher than one atmosphere. It is clinically used to treat various diseases such as harmful gas poisoning, hypoxic-ischemic encephalopathy, sudden deafness, brain trauma, cerebral infarction, hypoxemia, etc. The hyperbaric oxygen chamber is a medical device that provides hyperbaric oxygen therapy. It realizes the pressure change in the cabin by controlling the on and off of the valve. The hyperbaric oxygen chamber controls the exhaust valve to discharge the exhaust gas in the cabin through the exhaust pipe. In particular, when patients with respiratory infectious diseases in the cabin are undergoing hyperbaric oxygen therapy, the end of the exhaust pipe will be connected with a threaded disinfection head to disinfect the exhausted gas.

[0003] The disinfection head currently used on the exhaust pipe of the hyperbaric oxygen chamber is usually equipped with a filter inside to filter bacteria, viruses and other particulate matter in the exhaust gas, and is combined with an antibacterial agent to contact the exhaust gas to destroy the structure of bacteria and viruses, making them inactive and achieving the purpose of disinfection.

[0004] However, in the actual use of the hyperbaric oxygen chamber, as the use time of the disinfection head increases, the filter material inside the head will gradually accumulate impurities. When the filter material reaches saturation and the disinfection head needs to be disassembled and replaced, the unsterilized waste gas remaining inside the disinfection head will cause infection to the operator. In order to prevent the exhaust gas leakage when replacing the filter material in the disinfection head from causing harm to the operator, we proposed an exhaust duct disinfection head for a hyperbaric oxygen chamber. Summary of the invention

[0005] In view of the problems in the prior art, the object of the present invention is to provide an exhaust pipe disinfection head for a hyperbaric oxygen chamber.

[0006] To solve the above problems, the present invention adopts the following technical solutions:

[0007] A sterilizing seal for an exhaust pipe of a hyperbaric oxygen chamber comprises a sealing pipe and a docking flange fixedly connected to one end of an outer wall of the sealing pipe, an exhaust port is arranged at the other end of the outer wall of the sealing pipe, a working filter is arranged inside the sealing pipe, an anti-leakage mechanism is arranged for sterilizing and warning the exhaust gas inside the sealing pipe, the anti-leakage mechanism is distributed inside and outside the sealing pipe, and the anti-leakage mechanism is connected to the sealing pipe; a replacement mechanism is arranged for assisting in replacing the working filter, and the replacement mechanism is connected to the anti-leakage mechanism and the working filter.

[0008] Optionally, the anti-leakage mechanism includes a gas detector arranged on the top of the sealing pipe and extending into the interior of the sealing pipe, a PLC integrated controller fixed to the sealing pipe is arranged at one end of the gas detector, an external mounting bracket fixed to the sealing pipe and extending into the interior of the sealing pipe is arranged on one side of the PLC integrated controller, a driving motor is fixedly installed on the upper end of the external mounting bracket through a bolt assembly, an internal mounting bracket is fixedly connected to one end of the inner wall of the sealing pipe close to the exhaust port, a driven shaft extending to both ends of the outer wall of the inner mounting bracket is internally rotatably connected to the inner part of the internal mounting bracket, an intake fan is fixedly connected to one end of the driven shaft close to the exhaust port, a driving wheel is fixedly connected to the output end of the driving motor, a transmission belt is sleeved on the outer wall of the other end of the driven shaft and the outer wall of the driving wheel, and the upper end of the transmission belt and the driving wheel are both located inside the external mounting bracket.

[0009] Optionally, the replacement mechanism includes an integrated warehouse fixedly connected to one end of the sealing pipe near the docking flange, the top of the integrated warehouse is fixedly connected to a mounting cover, the integrated warehouse and the sealing pipe and the mounting cover are mutually connected, the end of the driving wheel away from the driving motor is fixedly connected to a transmission shaft extending to the interior of the mounting cover, the outer wall of the transmission shaft is fixedly connected to a fixing key, the outer walls of the transmission shaft and the fixing key are movably sleeved with gears, the interior of the gear is provided with a swivel extending to one end of the outer wall of the gear, the other end of the gear is fixedly connected to a connecting ring, the end of the connecting ring away from the gear is fixedly connected to a connecting plate, a first spring is provided between the swivel and the mounting cover, the two ends of the first spring are respectively connected to the swivel and the mounting cover, and a working sealing plate is movably provided inside the integrated warehouse.

[0010] Optionally, the working sealing plate is composed of two groups of hollow first rectangular plates, and the ends of the two groups of first rectangular plates close to each other are each provided with a first annular groove matching the outer diameter of the working filter, the working filter is located inside the annular groove, the center of the first annular groove corresponds to the center of the sealing pipe, and the two groups of rectangular plates are connected to the working filter by a bolt assembly.

[0011] Optionally, the replacement mechanism also includes a plurality of latches equidistantly fixedly connected to the top of the first rectangular plate, a spare sealing plate is provided on one side of the working sealing plate, the spare sealing plate is composed of two groups of hollow second rectangular plates, and the ends of the two groups of second rectangular plates close to each other are provided with second annular grooves matching the outer diameter of the spare filter screen, the spare filter screen is located inside the second annular groove, the two groups of second rectangular plates are connected to the spare filter screen by a bolt assembly, and a plurality of latches are also equidistantly provided on the top of the second rectangular plate, and the gear is meshed with the plurality of latches located on the top of the two groups of second rectangular plates.

[0012] Optionally, the replacement mechanism also includes a reset groove arranged on one side of the top of the spare sealing plate away from the gear, the bottom of the reset groove is provided with a second spring, the top of the second spring is provided with a reset driving block, the interior of the reset driving block is provided with a groove that runs through the two sides of the outer wall of the reset driving block, and a reset rod is movably arranged in the reset groove and located on one side of the bottom of the groove, and the two ends of the outer wall of the reset rod are fixedly connected with a rectangular limit strip, the inner wall of the reset groove is provided with a limit slide groove matching the rectangular limit strip, the outer wall of the upper end of the reset driving block is fixedly connected with a connecting block extending to the inner wall of the reset groove, the upper end of the spare sealing plate is provided with a movable slide groove that penetrates the reset groove, the movable slide groove matches the connecting block, and the other end of the connecting block is fixedly connected with a trapezoidal block, and the inner top of the integrated warehouse is provided with, and the latch tooth and the trapezoidal block are located in the avoidance groove.

[0013] Optionally, the bottom surface of the groove is configured as an inclined surface structure.

[0014] Optionally, a sliding cover is movably provided inside one side of the integrated bin, a pressure plate extending to the inner wall of the integrated bin is fixedly connected to the top of the sliding cover, and a pressure groove matching the pressure plate is provided on the inner wall of the integrated bin.

[0015] Optionally, the reset groove, the second spring, the reset rod, the reset drive block, the groove, the trapezoidal block, the connecting block, the rectangular limit strip and the limit slide groove are also distributed inside and outside the upper end of the working filter and the working sealing plate close to the sliding cover.

[0016] Optionally, a recovery U-shaped block is fixedly connected to a side of the integrated bin away from the sliding cover, and a friction pad is provided on an inner wall of the recovery U-shaped block.

[0017] Compared with the prior art, the technical solution provided by the present invention has at least the following beneficial effects:

[0018] In the above scheme, by setting up a leak prevention mechanism, when the high-pressure oxygen chamber is in normal use, the exhaust pipe is used to discharge the exhaust gas normally. However, when the impurities on the surface of the working filter are accumulated too much and reach a saturated state, the exhaust gas at this time cannot be completely disinfected after passing through the working filter, and the exhaust gas continues to flow inside the sealed pipe to the exhaust port. When the exhaust gas passes through the detection end of the gas detector, the gas detector alarm is triggered. At this time, the drive motor is operated by the PLC integrated controller, and the operation of the drive motor drives the driving wheel to rotate. The rotation of the driving wheel drives the driven shaft to rotate through the transmission belt, and the rotation of the driven shaft drives the intake fan to rotate, so as to blow the exhaust gas in the opposite direction and make the exhaust gas flow back to the exhaust pipe, thereby avoiding leakage caused by the failure of the working filter and the inability to disinfect the exhaust gas in time;

[0019] By setting up a replacement mechanism, while the driving motor drives the anti-leakage mechanism to operate, the driving gear rotates with the transmission shaft as the center. When the gear rotates, the latch set on the top of the second rectangular plate engages with the gear, and the gear can drive the spare sealing plate to move laterally to push the working sealing plate to move into the recovery U-shaped block. As the gear continues to drive the spare sealing plate to move laterally until the spare filter in the spare sealing plate completely overlaps with the initial position of the working filter, the replacement operation of the filter material inside the sealing pipe can be completed, and then the driving motor is stopped to allow the exhaust gas in the exhaust pipe to circulate normally. With the replacement of the filter material, the exhaust gas can be disinfected normally. Through the mutual cooperation between the above parts, the airtightness of the filter material replacement process can be guaranteed to prevent the exhaust gas leakage during replacement from causing harm to the operator. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the invention and, together with the description, further serve to explain the principles of the invention and to enable those skilled in the relevant art to make and use the invention.

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 It is a schematic diagram of the cross-sectional structure of the front end of the sealing pipe of the present invention;

[0023] Figure 3 It is a schematic diagram of the cross-sectional structure of the integrated warehouse of the present invention;

[0024] Figure 4 It is a schematic diagram of the structure of the replacement mechanism and the anti-leakage mechanism of the present invention;

[0025] Figure 5 For the present invention Figure 4 Enlarged view of point A in the middle;

[0026] Figure 6It is a schematic diagram of the cross-sectional structure of the image replacement mechanism of the present invention;

[0027] Figure 7 For the present invention Figure 4 Enlarged view of point B in the middle;

[0028] Figure 8 It is a schematic diagram of the cross-sectional structure of the spare sealing plate of the present invention;

[0029] Fig. 9 It is a schematic diagram of the cross-sectional structure of the reset drive block of the present invention;

[0030] Fig.10 It is an exploded view of the working sealing plate of the present invention.

[0031] [Reference Signs]

[0032] 1. Sealing pipe; 2. Docking flange; 3. Exhaust port; 4. PLC integrated controller; 5. Driving motor; 6. Gas detector; 7. Intake fan; 8. Transmission belt; 9. External mounting bracket; 10. Driven shaft; 11. Internal mounting bracket; 12. Working filter; 13. Transmission shaft; 14. Integrated bin; 15. Mounting cover; 16. Working sealing plate; 17. Gear; 18. Connecting block; 19. Pressing groove; 20. Sliding cover; 21. Pressing plate; 22. Trapezoidal block; 23. Connecting plate; 24. Spare filter; 25. Gear; 26. Driving wheel; 27. Connecting ring; 28. Rotating ring; 29. ​​First spring; 30. Fixed key; 31. Reset driving block; 32. Reset rod; 33. Groove; 34. Second spring; 35. Moving slide; 36. Recover U-shaped block; 37. Spare sealing plate; 38. Reset groove; 39. Avoidance groove.

[0033] As shown in the figure, in order to clearly implement the structure of the embodiment of the present invention, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments. DETAILED DESCRIPTION

[0034] The present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. At the same time, it is explained here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art may also adopt other alternatives to implement some known technologies; and the accompanying drawings are only for more specific description of the embodiments, and are not intended to specifically limit the present invention.

[0035] It should be noted that the references to "one embodiment", "embodiment", "exemplary embodiments", "some embodiments" and the like in the specification indicate that the embodiments described may include specific features, structures or characteristics, but not every embodiment may include the specific features, structures or characteristics. In addition, when a specific feature, structure or characteristic is described in conjunction with an embodiment, it should be within the knowledge of a person skilled in the art to implement such feature, structure or characteristic in conjunction with other embodiments (whether or not explicitly described).

[0036] In general, a term can be understood, at least in part, from its use in context. For example, depending, at least in part, on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending, at least in part, on the context, allow for the presence of other factors that are not necessarily explicitly described.

[0037] It will be understood that the meanings of “on,” “over,” and “above” in the present invention should be interpreted in the broadest manner, so that “on” not only means “directly on” something, but also includes the meaning of being “on” something with intervening features or layers therebetween, and “on” or “over” not only means “on” or “above” something, but also includes the meaning of being “on” or “above” something with no intervening features or layers therebetween.

[0038] Additionally, spatially relative terms such as "under," "beneath," "lower," "above," "upper," and the like may be used herein for descriptive convenience to describe the relationship of one element or feature to another element or features, as shown in the accompanying drawings. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially relative descriptors used herein may be similarly interpreted accordingly.

[0039] like Figure 1As shown, an embodiment of the present invention provides an exhaust pipe disinfection head for a hyperbaric oxygen chamber, comprising a sealing pipe 1 and a docking flange 2 fixedly connected to one end of the outer wall of the sealing pipe 1, the other end of the outer wall of the sealing pipe 1 is provided with an exhaust port 3, and the interior of the sealing pipe 1 is provided with a working filter 12; an anti-leakage mechanism, the anti-leakage mechanism is used to perform disinfection and early warning on the exhaust gas inside the sealing pipe 1, the anti-leakage mechanism is distributed inside and outside the sealing pipe 1, and the anti-leakage mechanism is connected to the sealing pipe 1; a replacement mechanism, the replacement mechanism is used to assist in the replacement of the working filter 12, and the replacement mechanism is connected to the anti-leakage mechanism and the working filter 12.

[0040] like Figure 1 and Figure 2 As shown, the anti-leakage mechanism includes a gas detector 6 arranged on the top of the sealing pipe 1 and extending to the inside of the sealing pipe 1, one end of the gas detector 6 is provided with a PLC integrated controller 4 fixed to the sealing pipe 1, one side of the PLC integrated controller 4 is provided with an external mounting bracket 9 fixed to the sealing pipe 1, the top of the inside of the sealing pipe 1 is fixedly connected, the inside of the external mounting bracket 9 is provided with a cavity, the cavity is connected to the internal space of the sealing pipe 1, and the upper end of the external mounting bracket 9 is fixedly installed by a bolt assembly There is a driving motor 5, and one end of the inner wall of the sealing pipe 1 close to the exhaust port 3 is fixedly connected to an inner mounting bracket 11, and the inner part of the inner mounting bracket 11 is rotatably connected to a driven shaft 10 extending to the two ends of the outer wall of the inner mounting bracket 11, and one end of the driven shaft 10 close to the exhaust port 3 is fixedly connected to an intake fan 7, and the output end of the driving motor 5 is fixedly connected to a driving wheel 26, and the outer wall of the other end of the driven shaft 10 and the outer wall of the driving wheel 26 are sleeved with a transmission belt 8, and the upper end of the transmission belt 8 and the driving wheel 26 are both located inside the cavity.

[0041] The sealing pipe 1 is butted with the exhaust pipe through the butt flange 2. It should be noted that the specific model of the gas detector 6 can be set to Honeyage fixed four-in-one gas detector HNAG1000-4S-H. The gas detector 6 and the drive motor 5 are electrically connected to the PLC integrated controller 4 through wires. The detection end of the gas detector 6 extends to the inside of the sealing pipe 1. First, when the exhaust pipe is used normally in the hyperbaric oxygen chamber to discharge the exhaust gas normally, when the surface of the working filter 12 accumulates too much impurities and reaches a saturated state, the exhaust gas at this time cannot be completely disinfected after passing through the working filter 12, and the waste gas The gas continues to flow inside the sealed pipe 1 toward the exhaust port 3. When the exhaust gas passes through the detection end of the gas detector 6, the gas detector 6 is triggered to alarm. At this time, the drive motor 5 is operated through the PLC integrated controller 4. The operation of the drive motor 5 drives the active wheel 26 to rotate. The rotation of the active wheel 26 drives the driven shaft 10 to rotate through the transmission belt 8. The rotation of the driven shaft 10 drives the intake fan 7 to rotate, so as to blow the exhaust gas in the opposite direction and return the exhaust gas to the exhaust pipe, thereby avoiding leakage caused by the inability to disinfect the exhaust gas in time after the working filter 12 fails.

[0042] like Figures 3 to 7 As shown, the replacement mechanism includes an integrated bin 14 fixedly connected to the outer wall of one end of the sealing pipe 1 close to the docking flange 2, the integrated bin 14 is close to the docking flange 2 but not in contact with the docking flange 2, a mounting cover 15 is fixedly connected to the top of the integrated bin 14, the interior of the integrated bin 14 is a hollow structure, the inner wall of the sealing pipe 1 is provided with an opening corresponding to the hollow structure inside the integrated bin 14, the mounting cover 15 is also provided with an opening near the inner wall of the integrated bin 14, the integrated bin 14 is respectively connected to the sealing pipe 1 and the mounting cover 15 through the two openings, and the driving wheel 26 is fixedly connected to the end away from the driving motor 5 with a transmission extending to the interior of the mounting cover 15 Shaft 13, the transmission shaft 13 extends into the outer wall of the mounting cover 15 and is fixedly connected with a fixed key 30, the outer walls of the transmission shaft 13 and the fixed key 30 are movably sleeved with a gear 25, the internal rotation of the gear 25 is connected with a swivel 28 extending to one end of the outer wall of the gear 25, the other end of the gear 25 is fixedly connected with a connecting ring 27, the end of the connecting ring 27 away from the gear 25 is fixedly connected with a connecting plate 23, the connecting plate 23 is located inside the mounting cover 15, a first spring 29 is arranged between the swivel 28 and the mounting cover 15, the two ends of the first spring 29 are respectively connected to the swivel 28 and the mounting cover 15, and a working sealing plate 16 is movably arranged inside the integrated warehouse 14.

[0043] The working sealing plate 16 is composed of two groups of hollow first rectangular plates, and the two first rectangular plates are stacked in the integrated warehouse 14 along the axial direction of the sealing pipe. The ends of the two groups of the first rectangular plates close to each other are provided with a first annular groove matching the outer diameter of the working filter 12. The working filter 12 is located inside the annular groove, and the center of the first annular groove corresponds to the center of the gas inlet of the sealing pipe 1. The two groups of the rectangular plates are connected to the working filter 12 by bolt assemblies. The setting of the two groups of the hollow first rectangular plates is conducive to connecting and fixing the two groups of the first rectangular plates and the working filter 12 with the bolt assembly after the working filter 12 is placed in the annular groove.

[0044] like Figure 3 , Figure 4 and Fig.10 As shown, the replacement mechanism also includes a plurality of latch teeth 17 equidistantly fixedly connected to the top of the first rectangular plate, a spare sealing plate 37 is provided on one side of the working sealing plate 16, and the spare sealing plate 37 is composed of two groups of hollow second rectangular plates, and the ends of the two groups of the second rectangular plates close to each other are provided with a second annular groove matching the outer diameter of the spare filter screen 24, and the spare filter screen 24 is located inside the second annular groove, and the two groups of the second rectangular plates are connected to the spare filter screen 24 through a bolt assembly, and the top of the second rectangular plate is also equidistantly provided with a plurality of latch teeth 17, and the gear 25 can be connected with the plurality of latch teeth 17 located at the top of the two groups of the second rectangular plates. The latch teeth 17 are meshed with each other, and the overall structures of the spare sealing plate 37 and the working sealing plate 16 are adapted to the hollow structure inside the integrated bin 14. The spare sealing plate 37 and the working sealing plate 16 are located in the same plane inside the integrated bin 14, and the spare sealing plate 37 and the working sealing plate 16 are movably arranged inside the integrated bin 14 through the hollow structure. The arrangement of two groups of hollow second rectangular plates is conducive to connecting and fixing the two groups of second rectangular plates and the spare filter screen 24 with a bolt assembly after the spare filter screen 24 is placed in the second annular groove, thereby facilitating the subsequent use of the spare sealing plate 37.

[0045] The replacement mechanism also includes a reset groove 38 provided on a side of the top of the spare sealing plate 37 away from the gear 25, a second spring 34 is provided at the bottom of the reset groove 38, a reset driving block 31 is provided on the top of the second spring 34, a groove 33 is provided inside the reset driving block 31 and passes through both sides of the outer wall of the reset driving block 31, a reset rod 32 is movably provided in the reset groove 38 and is located on one side of the bottom of the groove 33, both ends of the outer wall of the reset rod 32 are fixedly connected with rectangular limit bars, the inner wall of the reset groove 38 is provided with a limit slide matching the rectangular limit bar, the outer wall of the upper end of the reset driving block 31 is fixedly connected with a connecting block 18 extending to the inner wall of the reset groove 38, the upper end of the spare sealing plate 37 is provided with a movable slide 35 that penetrates the reset groove 38, the movable slide 35 matches the connecting block 18, the other end of the connecting block 18 is fixedly connected with a trapezoidal block 22, and an avoidance groove 39 is provided at the top of the inner top of the integrated warehouse 14, the avoidance groove 39 is connected with the hollow structure inside the integrated bin 14, the latch teeth 17 and the trapezoidal block 22 are located in the avoidance groove 39, the bottom surface of the groove 33 is set as an inclined structure, and a sliding cover 20 is movably arranged inside one side of the integrated bin 14, and the sliding cover 20 is located on the outer wall of the spare sealing plate 37 away from the working sealing plate 16, and the reset groove 38, the second spring 34, and the second spring 34 are also distributed inside and outside the working filter 12 and the upper end of the working sealing plate 16 near the sliding cover 20. The reset rod 32, the reset drive block 31, the groove 33, the trapezoidal block 22, the connecting block 18, the rectangular limit strip and the limit slide groove, a sliding cover 20 is movably provided inside one side of the integrated warehouse 14, the top of the sliding cover 20 is fixedly connected with a pressure plate 21 extending to the inner wall of the integrated warehouse 14, the inner wall of the integrated warehouse 14 is provided with a pressure groove 19 matching the pressure plate 21, and the sliding cover 20 and the pressure plate 21 are slidably connected to the integrated warehouse 14 through the pressure groove 19.

[0046] In this embodiment, when the driving motor 5 operates to drive the driving wheel 26 to rotate, the driving wheel 26 drives the transmission shaft 13 to rotate synchronously, the rotation of the transmission shaft 13 drives the fixed key 30 to rotate with the transmission shaft 13 as the center, and the rotation of the fixed key 30 drives the gear 25 to rotate with the transmission shaft 13 as the center. When the gear 25 rotates, the gear 25 can drive the spare sealing plate 37 to move laterally to push the working sealing plate 16 toward the recovery U The spare sealing plate 37 is moved in the mold block 36, and the gear 25 continues to drive the spare sealing plate 37 to move horizontally until the spare filter 24 in the spare sealing plate 37 completely overlaps with the initial position of the working filter 12, thereby completing the replacement operation of the filter material inside the sealing pipe 1, and then stopping the operation of the driving motor 5, so that the exhaust gas in the exhaust pipe can circulate normally, and the exhaust gas disinfection operation can be carried out normally with the replaced filter material. Through the mutual cooperation between the above-mentioned parts, the airtightness during the replacement of the filter material can be guaranteed to prevent the exhaust gas leakage during the replacement from causing harm to the operator.

[0047] The cross-section of the recycling U-shaped block 36 is a U-shaped structure, and the U-shaped structure is interconnected with the hollow structure inside the integrated warehouse 14. The inner wall of the U-shaped structure is provided with a friction pad, which can be used for temporary storage of the old spare sealing plate 37 after replacement. The setting of the friction pad improves the stability of the old spare sealing plate 37 during temporary storage.

[0048] like Figure 8 and Fig. 9As shown, the distance between the two ends of the trapezoidal block 22 is greater than the stroke when the latch tooth 17 and the gear 25 are in meshing state, and the distance between the trapezoidal block 22 and the spare sealing plate 37 is greater than the width of the gear 25. When the spare sealing plate 37 is to be replaced, the end of the trapezoidal block 22 close to the spare sealing plate 37 and the end of the connecting plate 23 close to the gear 25 are located in the same plane. In the process of driving the gear 25 to rotate to drive the spare sealing plate 37 to move, the trapezoidal block 22 moves laterally synchronously with the spare sealing plate 37 through the connecting block 18, and when the spare filter screen 24 is about to complete the replacement of the working filter screen 12 The inclined portion on the surface of the trapezoidal block 22 is inserted between the connecting plate 23 and the gear 25, and as the trapezoidal block 22 continues to move away from the driving motor 5, the connecting plate 23 is displaced and the gear 25 can be driven to move longitudinally through the connecting ring 27. When the spare filter 24 moves to the initial position of the working filter 12, the trapezoidal block 22 is completely inserted between the connecting plate 23 and the gear 25. At this time, the gear 25 is completely separated from the latch 17. In this way, the continuous operation of the driving motor 5 will no longer affect the position of the spare filter 24, thereby improving the stability of the spare filter 24 after the displacement.

[0049] After the spare filter 24 completes the replacement operation of the working filter 12, the initial position of the spare filter 24 will be vacant. At this time, the sliding cover 20 can be moved down on the outer wall of the integrated bin 14 by pressing the pressing plate 21 to open the internal space of the integrated bin 14, and then a new set of the spare sealing plate 37 and the spare filter 24 can be inserted into the interior of the integrated bin 14, so that the new set of the spare sealing plate 37 and the spare filter 24 are moved to the initial position of the old set of the spare sealing plate 37 and the spare filter 24, so as to facilitate the subsequent replacement of the filter material in the seal, and the above operation can be repeated to complete the replacement operation of the filter material. Improve the convenience of operation.

[0050] Among them, in the process of the new group of spare sealing plates 37 being fitted with the outer wall of the old group away from the side of the pressure plate 21, the surface of the new group of spare sealing plates 37 will squeeze the reset rod 32 in the old group of spare sealing plates 37, so that the reset rod 32 is inserted into the interior of the groove 33, and squeeze the inclined structure at the bottom of the groove 33, so that the reset drive block 31 moves downward, and the movement of the reset drive block 31 drives the trapezoidal block 22 downward through the connecting block 18, so that the trapezoidal block 22 in the old group is separated from the connecting plate 23, so that the reset action of the first spring 29 pulls the gear 25 to reset through the swivel 28, and engages with the latch tooth 17 at the top of the new group of spare sealing plates 37, so as to facilitate the subsequent replacement of the filter material in the sealing pipe 1.

[0051] like Figure 3 , Figure 4 as well as Figure 7 As shown, a recovery U-shaped block 36 is fixedly connected to the side of the integrated bin 14 away from the sliding cover 20, and a friction pad is provided on the inner wall of the recovery U-shaped block 36; after the working sealing plate 16 is pushed out by the spare sealing plate 37, it can be temporarily stored in the recovery U-shaped block 36, and the stability of the working sealing plate 16 after being pushed out can be maintained by the friction pad.

[0052] The specific working process of the technical solution of the present invention is as follows:

[0053] First, when the hyperbaric oxygen chamber is in normal use, the exhaust pipe is used to discharge the exhaust gas normally. However, when the impurities on the surface of the working filter 12 are accumulated too much and reach a saturated state, the exhaust gas at this time cannot be thoroughly disinfected after passing through the working filter 12, and the exhaust gas continues to flow inside the sealed pipe 1 to the exhaust port 3. When the exhaust gas passes through the detection end of the gas detector 6, the gas detector 6 is triggered to alarm. At this time, the drive motor 5 is operated through the PLC integrated controller 4. The operation of the drive motor 5 drives the active wheel 26 to rotate. The rotation of the active wheel 26 drives the driven shaft 10 to rotate through the transmission belt 8. The rotation of the driven shaft 10 drives the intake fan 7 to rotate, so as to blow the exhaust gas in the opposite direction and make the exhaust gas flow back to the exhaust pipe, thereby avoiding leakage caused by the failure of the working filter 12 and the inability to disinfect the exhaust gas in time.

[0054] Then, when the driving motor 5 is operated to drive the driving wheel 26 to rotate, the driving wheel 26 drives the transmission shaft 13 to rotate synchronously, the rotation of the transmission shaft 13 drives the fixed key 30 to rotate with the transmission shaft 13 as the center, and the rotation of the fixed key 30 drives the gear 25 to rotate with the transmission shaft 13 as the center. When the gear 25 rotates, through the mutual meshing of the latch 17 set at the top of the second rectangular plate and the gear 25, the gear 25 can drive the spare sealing plate 37 to move horizontally to push the working sealing plate 16 to move into the recovery U-shaped block 36. As the gear 25 continues to drive the spare sealing plate 37 to move horizontally, until the spare filter 24 in the spare sealing plate 37 completely overlaps with the initial position of the working filter 12, the replacement operation of the filter material inside the sealing pipe 1 can be completed, and then the driving motor 5 is stopped to allow the exhaust gas in the exhaust pipe to circulate normally, and the exhaust gas disinfection operation can be carried out normally with the replacement of the filter material. Through the mutual cooperation between the above-mentioned parts, the airtightness during the replacement of the filter material can be guaranteed to prevent the exhaust gas leakage during the replacement from causing harm to the operator.

[0055] The present invention covers any substitution, modification, equivalent method and scheme made on the essence and scope of the present invention. In order to make the public have a thorough understanding of the present invention, specific details are described in detail in the following preferred embodiments of the present invention, but those skilled in the art can fully understand the present invention without the description of these details. In addition, in order to avoid unnecessary confusion about the essence of the present invention, well-known methods, processes, procedures, components and circuits are not described in detail.

[0056] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A sterilization seal for an exhaust pipe of a hyperbaric oxygen chamber, comprising a sealing pipe and a docking flange fixedly connected to one end of the outer wall of the sealing pipe, an exhaust port is arranged at the other end of the outer wall of the sealing pipe, and a working filter is arranged inside the sealing pipe, characterized in that: An anti-leakage mechanism, which is used to provide an early warning of disinfection of the exhaust gas inside the sealed pipe, and is distributed inside and outside the sealed pipe, and is connected to the sealed pipe; A replacement mechanism, the replacement mechanism is used to assist in replacing the working filter, the replacement mechanism is connected to the anti-leakage mechanism and the working filter; The anti-leakage mechanism comprises a gas detector arranged on the top of the sealing pipe and extending into the interior of the sealing pipe, a PLC integrated controller fixed to the sealing pipe is arranged at one end of the gas detector, an external mounting bracket fixed to the sealing pipe and penetrating into the interior of the sealing pipe is arranged on one side of the PLC integrated controller, a driving motor is fixedly installed on the upper end of the external mounting bracket through a bolt assembly, an inner mounting bracket is fixedly connected to one end of the inner wall of the sealing pipe close to the exhaust port, a driven shaft extending to both ends of the outer wall of the inner mounting bracket is rotatably connected inside the internal mounting bracket, an intake fan is fixedly connected to one end of the driven shaft close to the exhaust port, a driving wheel is fixedly connected to the output end of the driving motor, a transmission belt is sleeved on the outer wall of the other end of the driven shaft and the outer wall of the driving wheel, and the upper end of the transmission belt and the driving wheel are both located inside the external mounting bracket; The replacement mechanism includes an integrated warehouse fixedly connected to one end of the sealing pipe close to the docking flange, a mounting cover is fixedly connected to the top of the integrated warehouse, the integrated warehouse and the sealing pipe and the mounting cover are mutually connected, the end of the driving wheel away from the driving motor is fixedly connected to a transmission shaft extending to the inside of the mounting cover, the outer wall of the transmission shaft is fixedly connected to a fixing key, the outer walls of the transmission shaft and the fixing key are movably sleeved with a gear, a swivel extending to one end of the outer wall of the gear is provided inside the gear, the other end of the gear is fixedly connected to a connecting ring, the end of the connecting ring away from the gear is fixedly connected to a connecting plate, a first spring is provided between the swivel and the mounting cover, the two ends of the first spring are respectively connected to the swivel and the mounting cover, and a working sealing plate is movably provided inside the integrated warehouse; The working sealing plate is composed of two groups of hollow first rectangular plates, and the ends of the two groups of the first rectangular plates close to each other are both provided with a first annular groove matching the outer diameter of the working filter screen, the working filter screen is located inside the annular groove, the center of the first annular groove corresponds to the center of the sealing pipe, and the two groups of the rectangular plates are connected to the working filter screen by a bolt assembly; The replacement mechanism also includes a plurality of latch teeth fixedly connected to the top of the first rectangular plate at equal distances, a spare sealing plate is provided on one side of the working sealing plate, and the spare sealing plate is composed of two groups of hollow second rectangular plates, and the ends of the two groups of second rectangular plates close to each other are both provided with a second annular groove matching the outer diameter of the spare filter screen, and the spare filter screen is located inside the second annular groove, and the two groups of second rectangular plates are connected to the spare filter screen through a bolt assembly, and the top of the second rectangular plate is also provided with a plurality of latch teeth at equal distances, and the gear is meshed with the plurality of latch teeth located at the top of the two groups of second rectangular plates; The replacement mechanism also includes a reset groove arranged on one side of the top of the spare sealing plate away from the gear, and a second spring is arranged at the bottom of the reset groove, and a reset driving block is arranged on the top of the second spring, and a groove is arranged inside the reset driving block, which passes through the two sides of the outer wall of the reset driving block, and a reset rod is movably arranged in the reset groove, and is located on one side of the bottom of the groove. The two ends of the outer wall of the reset rod are fixedly connected with a rectangular limiting strip, and the inner wall of the reset groove is provided with a limiting slide groove matching the rectangular limiting strip. The outer wall of the upper end of the reset driving block is fixedly connected to a connecting block extending to the inner wall of the reset groove, and the upper end of the spare sealing plate is provided with a movable slide groove that penetrates the reset groove, and the movable slide groove matches the connecting block, and the other end of the connecting block is fixedly connected with a trapezoidal block, and an avoidance groove is arranged on the internal top of the integrated warehouse, and the latch tooth and the trapezoidal block are located in the avoidance groove.

2. The exhaust pipe disinfection head for a hyperbaric oxygen chamber according to claim 1, characterized in that: The bottom surface of the groove is arranged as an inclined surface structure.

3. The exhaust pipe disinfection head for a hyperbaric oxygen chamber according to claim 1, characterized in that: A sliding cover is movably provided inside one side of the integrated bin, a pressing plate extending to the inner wall of the integrated bin is fixedly connected to the top of the sliding cover, and a pressing groove matching the pressing plate is provided on the inner wall of the integrated bin.

4. The exhaust pipe disinfection head for a hyperbaric oxygen chamber according to claim 3, characterized in that: The reset groove, the second spring, the reset rod, the reset drive block, the groove, the trapezoidal block, the connecting block, the rectangular limit strip and the limit slide groove are also distributed inside and outside the working filter and the upper end of the working sealing plate close to the sliding cover.

5. The exhaust pipe disinfection head for a hyperbaric oxygen chamber according to claim 3, characterized in that: A recovery U-shaped block is fixedly connected to a side of the integrated bin away from the sliding cover, and a friction pad is arranged on the inner wall of the recovery U-shaped block.

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