Resistance-free oxygen supply and exhaust follow-up breathing device

Abstract

The invention relates to the technical field of medical instruments, and discloses a resistance-free oxygen supply and exhaust follow-up breathing device which comprises a main machine, a connector arranged at the bottom of the main machine, a winding mechanism arranged on the side, away from the main machine, of the connector and a driving mechanism arranged on the outer side of the winding mechanism. The winding mechanism comprises a butt joint unit arranged on the side, away from the main machine, of the connector, an unwinding unit arranged in the butt joint unit, and a winding unit arranged on the side, away from the unwinding unit, of the butt joint unit. The butt joint unit comprises a fixing pipe arranged on the side, away from the host, of the connector, a limiting ring arranged on the side, close to the host, of the fixing pipe, a housing arranged on the outer side of the limiting ring, and a through hole formed in the side, away from the fixing pipe, of the housing. By arranging the winding mechanism, continuous replacement of a filter membrane working area can be realized, so that the defect that traditional equipment needs to be shut down due to replacement of a filter membrane is overcome, the replacement process is simplified, and the operation of replacing the filter membrane is increased quickly and conveniently.

Description

Technical Field

[0001] The invention relates to the technical field of medical devices, and in particular to a resistance-free oxygen supply and exhaust follow-up breathing device. Background Art

[0002] The resistance-free oxygen supply and exhaust follow-up breathing device is an advanced respiratory assistance device designed to provide users with efficient and comfortable oxygen supply and carbon dioxide exhaust experience. Its core feature is that it can automatically adjust the flow of oxygen supply and exhaust according to the user's breathing rhythm to ensure a natural and smooth breathing process. This device uses precise sensors and intelligent control systems to monitor the user's breathing frequency and depth in real time, dynamically adjust oxygen output and exhaust emissions, and avoid respiratory resistance or discomfort common in traditional respiratory equipment. This device is widely used in medical scenarios. In the medical field, it is often used in intensive care units, operating rooms, and daily care of patients with chronic respiratory diseases to help patients maintain stable blood oxygen levels.

[0003] Traditional resistance-free oxygen supply and exhaust follow-up breathing devices are widely used in medical scenarios, but due to the limitations of their structure and working principles, there are often some problems that cannot be ignored. Although traditional resistance-free oxygen supply and exhaust follow-up breathing devices perform well in respiratory assistance, they have brought many inconveniences to users due to the need to stop the device to replace the filter surface and the low replacement efficiency. First of all, the filter surface of the traditional device needs to be replaced regularly to ensure the normal operation of the device and the user's respiratory safety. However, the device must be stopped when replacing the filter surface, which means that the user has to interrupt the respiratory assistance function during use. For critically ill patients who rely on respiratory devices, this interruption may cause short-term hypoxia or discomfort, and may even pose certain risks to health. In addition, frequent shutdowns for replacement will also affect the continuous use efficiency of the device, especially in scenarios such as medical emergency or long-term exercise. Such interruptions are unacceptable. Secondly, the replacement operation of traditional filter surfaces is usually complicated and inefficient. The replacement process may require the disassembly of multiple parts and even require professional personnel to operate, which not only increases the time cost, but may also lead to operational errors or equipment damage. For non-professionals, it is very difficult to complete the replacement operation quickly and accurately, resulting in a long replacement process that cannot meet emergency needs, further reducing the practicality of the equipment and user experience. Summary of the invention

[0004] In view of the problems in the prior art that the filter assembly must be stopped for replacement and the replacement efficiency of the filter assembly is low, a resistance-free oxygen supply and exhaust follow-up breathing device is proposed.

[0005] The purpose is to avoid downtime for replacing filter components and to achieve rapid replacement of filter components, thereby reducing the medical risks caused by downtime.

[0006] The technical solution of the present invention is a resistance-free oxygen supply and exhaust follow-up breathing device, comprising a main unit, a joint arranged at the bottom of the main unit, a winding mechanism arranged at a side of the joint away from the main unit, and a driving mechanism arranged outside the winding mechanism;

[0007] The winding mechanism comprises a docking unit arranged at a side of the joint away from the main machine, a reeling unit arranged inside the docking unit, and a reeling unit arranged at a side of the docking unit away from the reeling unit;

[0008] The docking unit includes a fixed tube arranged on the side of the joint away from the main machine, a limiting ring arranged on the side of the fixed tube close to the main machine, a cover shell arranged on the outside of the limiting ring, a through hole opened on the side of the cover shell away from the fixed tube, a telescopic tube arranged on the inner side of the through hole, two long grooves symmetrically opened on both sides of the telescopic tube, an upper arc rod arranged on the top inner wall of the cover shell close to the fixed tube side, two upper support blocks symmetrically arranged on the top inner wall of the cover shell close to the upper arc rod side, a discharging roller arranged on the inner side of the upper support block, the two ends of the discharging roller are respectively rotatably connected to the two upper support blocks, a lower arc rod arranged on the bottom inner wall of the cover shell close to the telescopic tube side, two lower support blocks symmetrically arranged on the bottom inner wall of the cover shell close to the lower arc rod side, and a receiving roller arranged on the inner side of the lower support block, the two ends of the receiving roller are respectively rotatably connected to the two lower support blocks.

[0009] Furthermore, a circular hole is formed on one side of the cover shell close to the joint, and a ring groove is formed inside the circular hole, and the shape of the ring groove matches the limiting ring.

[0010] Furthermore, the unwinding unit includes two retaining rings arranged in a linear array in the middle of the fixed tube, a shaft sleeve arranged on the outside of the fixed tube, the two ends of the shaft sleeve are rotatably connected to the two retaining rings respectively, four circular grooves symmetrically opened at the top and bottom of the shaft sleeve, a latch arranged at the top of the circular groove, an ejection spring arranged at the bottom of the latch, the top and bottom of the ejection spring are respectively fixedly connected to the latch and the circular groove, a material roll arranged on the outside of the shaft sleeve, two sliding grooves symmetrically opened on the inner wall of the material roll, the top of the latch is clamped with the inner wall of the sliding groove, and a filter membrane arranged on the outside of the material roll.

[0011] Furthermore, two arc-shaped grooves are symmetrically formed on the top of the slide slot, and the shapes of the grooves match the top shape of the latch.

[0012] Furthermore, the winding unit includes two linear arrays of rings arranged in the middle of the telescopic tube, a cylinder arranged on the outside of the telescopic tube, the two sides of the cylinder are rotatably connected to the two rings respectively, a spring arranged on the inside of the cylinder, the two ends of the spring are fixedly connected to the cylinder and the telescopic tube respectively, and a reel mounted on the outside of the cylinder, the outer side of the reel is fixedly connected to the side of the filter membrane away from the fixed tube.

[0013] Furthermore, a cavity is formed inside the cylinder, and assembly holes penetrating to the cavity are formed at both ends of the cylinder.

[0014] Furthermore, the driving mechanism includes two positioning rings arranged in a linear array in the middle of the cover shell, a driving ring arranged on the outside of the cover shell, a corrugated groove opened on the inner wall of the driving ring, two guide holes symmetrically opened on both sides of the cover shell, two cross bars symmetrically arranged on the side of the telescopic tube close to the fixed top tube, one end of the cross bar away from the telescopic tube passes through the guide hole and is slidably connected to the corrugated groove, and a reset spring sleeved on the side of the telescopic tube away from the cross bar, and the two ends of the reset spring are respectively fixedly connected to the cover shell and the circular ring.

[0015] Furthermore, the diameter of the crossbar matches the width of the guide hole, and the spacing between the two positioning rings matches the width of the drive ring.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. By setting up a winding mechanism, the working area of ​​the filter membrane can be continuously replaced, thereby avoiding the disadvantage of traditional equipment that needs to be shut down for filter membrane replacement. The mechanism can adjust the use area of ​​the filter membrane through the coordination of reeling and unreeling, ensuring that the device always has a clean filter membrane involved in the work during operation. This design not only eliminates the interruption risk caused by shutdown replacement, but also improves the continuous operation efficiency of the equipment. At the same time, the introduction of the winding mechanism simplifies the operating process of filter membrane replacement, reduces the frequency and complexity of manual intervention, and provides users with more stable and reliable breathing assistance, making the equipment more suitable for scenarios that require long-term continuous operation.

[0018] 2. By setting up a driving mechanism, users can replace the working area of ​​the filter membrane by simply turning the driving ring. This design avoids the complicated operation of disassembling and assembling components in traditional equipment, simplifies the replacement process, and enables the new filter membrane area to quickly enter the working state while removing the used part. This mechanism not only reduces the operating steps, but also reduces the risk of equipment damage that may be caused by disassembling components.

[0019] 3. By setting the upper arc rod and the lower arc rod, it can work together with the discharge roller and the collection roller to guide the filter membrane. The structural design of the upper arc rod and the lower arc rod ensures that the filter membrane remains stable during movement to avoid deviation or wrinkles. The discharge roller and the collection roller keep the filter membrane flat. The cooperation of the two ensures that the working area of ​​the filter membrane is always in the correct position, ensuring the consistency of the filtering effect. This design not only optimizes the filter membrane replacement process, but also reduces the frequency of manual intervention, and improves the operating efficiency and reliability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0021] Figure 2 It is an enlarged view of the winding mechanism of the present invention;

[0022] Figure 3 It is a schematic diagram of the internal structure of the cover shell of the present invention;

[0023] Figure 4 It is a schematic diagram of the connection between the fixed pipe and the shaft sleeve of the present invention;

[0024] Figure 5 It is a schematic diagram of the connection between the shaft sleeve and the material coil of the present invention;

[0025] Figure 6 It is a schematic diagram of the material roll structure of the present invention;

[0026] Figure 7 is a cross-sectional view of a cover shell of the present invention;

[0027] Figure 8 It is a schematic diagram of the connection between the telescopic tube and the return spring of the present invention;

[0028] Fig. 9 It is a schematic diagram of the connection between the reel and the cylinder of the present invention;

[0029] Fig.10 It is a schematic diagram of the connection between the cross bar and the driving ring of the present invention;

[0030] Fig.11 It is a schematic diagram of winding and unwinding the filter membrane of the present invention;

[0031] Fig.12 It is a schematic diagram of the connection between the positioning ring and the cover shell of the present invention.

[0032] In the figure:

[0033] 1. Main machine; 2. Joint; 3. Winding mechanism; 4. Driving mechanism; 31. Fixed tube; 32. Limiting ring; 33. Cover; 34. Through hole; 35. Telescopic tube; 36. Long groove; 37. Upper arc rod; 38. Upper support block; 39. Unwinding roller; 310. Lower arc rod; 311. Lower support block; 312. Rewinding roller; 313. Retaining ring; 314. Bushing; 315. Circular groove; 316. Latch; 317. Ejection spring; 318. Material roll; 319. Slide; 320. Filter membrane; 321. Circular ring; 322. Cylinder; 323. Spring; 324. Reel; 41. Positioning ring; 42. Driving ring; 43. Corrugated groove; 44. Guide hole; 45. Cross bar; 46. Reset spring. DETAILED DESCRIPTION

[0034] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0035] Example 1, reference Figure 1-Figure 12 , which is the first embodiment of the present invention, provides a resistance-free oxygen supply and exhaust follow-up breathing device, including a main unit 1, a joint 2 fixedly connected to the bottom of the main unit 1, and also includes a winding mechanism 3 installed on the side of the joint 2 away from the main unit 1, and a driving mechanism 4 installed on the outside of the winding mechanism 3; the winding mechanism 3 includes a docking unit installed on the side of the joint 2 away from the main unit 1, a reeling unit installed inside the docking unit, and a reeling unit installed on the side of the docking unit away from the reeling unit; the docking unit includes a fixed tube 31 fixedly connected to the side of the joint 2 away from the main unit 1, a limiting ring 32 fixedly connected to the side of the fixed tube 31 close to the main unit 1, a cover shell 33 fixedly connected to the outside of the limiting ring 32, a through hole 34 provided on the side of the cover shell 33 away from the fixed tube 31, and a sliding A telescopic tube 35 connected to the inner side of the through hole 34, two long grooves 36 symmetrically opened on both sides of the telescopic tube 35, an upper arc rod 37 fixedly connected to the top inner wall of the cover shell 33 near the fixed tube 31, two upper support blocks 38 symmetrically fixedly connected to the top inner wall of the cover shell 33 near the upper arc rod 37, a feeding roller 39 rotatably connected to the inner side of the upper support blocks 38, the two ends of the feeding roller 39 are rotatably connected to the two upper support blocks 38 respectively, a lower arc rod 310 fixedly connected to the bottom inner wall of the cover shell 33 near the telescopic tube 35, two lower support blocks 311 symmetrically fixedly connected to the bottom inner wall of the cover shell 33 near the lower arc rod 310, and a receiving roller 312 rotatably connected to the inner side of the lower support block 311, and the two ends of the receiving roller 312 are rotatably connected to the two lower support blocks 311 respectively.

[0036] Specifically, the end of the filter membrane 320 away from the joint 2 is passed through the upper arc rod 37 and the top of the feeding roller 39 in turn, and the filter membrane 320 is made to go vertically downward around the feeding roller 39, and then passed through the receiving roller 312 and the bottom of the lower arc rod 310 in turn, so that the filter membrane 320 is connected to the reel 324. At this time, the portion of the filter membrane 320 between the feeding roller 39 and the receiving roller 312 will be in a flat state, and the side of this section of the filter membrane 320 close to the joint 2 will always be in contact with the fixed tube 31. When the telescopic tube 35 is docked with the fixed tube 31, the gas flowing through will be filtered by the filter membrane 320. Under the action of the winding mechanism 3, the breathing device can realize the continuous replacement of the working area of ​​the filter membrane 320, thereby avoiding the disadvantage that the traditional equipment needs to be shut down due to the replacement of the filter membrane 320. The mechanism can adjust the use area of ​​the filter membrane 320 through the cooperation of the reel and unreel, ensuring that the device always has a clean filter membrane 320 to participate in the work during operation. This design not only eliminates The introduction of the winding mechanism 3 simplifies the operation process of replacing the filter membrane 320, reduces the frequency and complexity of manual intervention, provides users with more stable and reliable breathing assistance, and makes the device more suitable for scenarios that require long-term continuous operation. The upper arc rod 37 and the lower arc rod 310 can work together with the discharge roller 39 and the receiving roller 312 to guide the filter membrane 320. The structural design of the upper arc rod 37 and the lower arc rod 310 ensures that the filter membrane 320 remains stable during movement to avoid deviation or wrinkles. The discharge roller 39 and the receiving roller 312 keep the filter membrane 320 flat. The cooperation between the two ensures that the working area of ​​the filter membrane 320 is always in the correct position to ensure the consistency of the filtering effect. This design not only optimizes the replacement process of the filter membrane 320, but also reduces the frequency of manual intervention and improves the operation efficiency and reliability of the equipment.

[0037] Reference Figure 3 and Figure 7 A circular hole is formed on one side of the cover shell 33 close to the joint 2 , and a ring groove is formed inside the circular hole, and the shape of the ring groove matches the limiting ring 32 .

[0038] Specifically, the fixing tube 31 passes through the cover shell 33 through the circular hole, and the cover shell 33 is connected to the limiting ring 32 so as to keep itself relatively still with the fixing tube 31 .

[0039] Reference Figure 3-Figure 7The unwinding unit includes two linear array retaining rings 313 fixedly connected to the middle of the fixed tube 31, a sleeve 314 rotatably connected to the outside of the fixed tube 31, two ends of the sleeve 314 are rotatably connected to the two retaining rings 313 respectively, four circular grooves 315 symmetrically opened at the top and bottom of the sleeve 314, a latch 316 slidably connected to the top of the circular groove 315, an ejection spring 317 fixedly connected to the bottom of the latch 316, the top and bottom of the ejection spring 317 are fixedly connected to the latch 316 and the circular groove 315 respectively, a material roll 318 clamped on the outside of the sleeve 314, two sliding grooves 319 symmetrically opened on the inner wall of the material roll 318, the top of the latch 316 is clamped with the inner wall of the sliding groove 319, and a filter membrane 320 fixedly connected to the outside of the material roll 318.

[0040] Specifically, by aligning the slide groove 319 on the material roll 318 with the pin 316, the material roll 318 is sleeved on the outside of the sleeve 314, and the pin 316 will restrain the material roll 318 by cooperating with the slide groove 319, so that the axial force acting on the material roll 318 is less than the friction between the pin 316 and the slide groove 319, and the position between the material roll 318 and the sleeve 314 remains relatively fixed.

[0041] Reference Figure 5 and Figure 6 Two arc-shaped grooves are symmetrically opened on the top of the slide slot 319 , and the shape of the grooves matches the top shape of the latch pin 316 .

[0042] Specifically, under the action of the ejection spring 317 , the top of the latch 316 can remain engaged with the arc-shaped groove of the slide slot 319 , thereby fixing the material roll 318 .

[0043] Reference Figure 8 and Fig. 9 The winding unit includes two linear arrays of rings 321 fixedly connected to the middle of the telescopic tube 35, a cylinder 322 rotatably connected to the outside of the telescopic tube 35, both sides of the cylinder 322 are rotatably connected to the two rings 321 respectively, a spring 323 fixedly connected to the inside of the cylinder 322, both ends of the spring 323 are fixedly connected to the cylinder 322 and the telescopic tube 35 respectively, and a reel 324 sleeved on the outside of the cylinder 322, the outer side of the reel 324 is fixedly connected to the side of the filter membrane 320 away from the fixed tube 31.

[0044] Specifically, the spring 323 accumulates power by rotating the cylinder 322, and then the reel 324 is put on the outside of the cylinder 322. When the fixed tube 31 and the telescopic tube 35 are in an unconnected state, the spring 323 releases energy to drive the cylinder 322 to rotate. The rotation of the cylinder 322 also drives the reel 324 to rotate. After the reel 324 rotates, the filter membrane 320 is rolled up. After the filter membrane 320 is rolled up, the area that fits the fixed tube 31 will be replaced with an unused area. When the fixed tube 31 and the telescopic tube 35 are connected, the filter membrane 320 will be clamped so that it will no longer move, so that the spring 323 is constrained and no longer drives the cylinder 322 and the reel 324 to rotate.

[0045] Reference Fig. 9 A cavity is formed inside the cylinder 322, and assembly holes penetrating into the cavity are formed at both ends of the cylinder 322.

[0046] Specifically, the telescopic tube 35 passes through the assembly holes at both ends of the cylinder 322, so that the cylinder 322 can only rotate around the telescopic tube 35, and the cavity of the cylinder 322 can accommodate the movement of the mainspring 323 inside.

[0047] Example 2, reference Figure 3-Figure 12 , which is the second embodiment of the present invention. This embodiment is different from the first embodiment in that: the driving mechanism 4 includes two positioning rings 41 fixedly connected to the middle of the cover shell 33 in a linear array, a driving ring 42 rotatably connected to the outside of the cover shell 33, a corrugated groove 43 provided on the inner wall of the driving ring 42, two guide holes 44 symmetrically provided on both sides of the cover shell 33, two cross bars 45 symmetrically fixedly connected to the side of the telescopic tube 35 close to the fixed top tube, one end of the cross bar 45 away from the telescopic tube 35 passes through the guide hole 44 and is slidably connected to the corrugated groove 43, and a reset spring 46 sleeved on the side of the telescopic tube 35 away from the cross bar 45, and the two ends of the reset spring 46 are respectively fixedly connected to the cover shell 33 and the ring 321.

[0048] Specifically, the rotating driving ring 42 can drive the two cross bars 45 to move through the corrugated groove 43. The cross bars 45 are constrained by the guide holes 44 and can only move along the direction of the guide holes 44. The cross bars 45 move while driving the telescopic tube 35 to move together. The telescopic tube 35 moves while squeezing the reset spring 46. After the movement, the telescopic tube 35 will no longer dock with the fixed tube 31, thereby releasing the fixation of the filter membrane 320. After the filter membrane 320 is freed from constraints, the reel 324 and the cylinder 322 will rotate under the action of the clockwork 323, and the filter membrane 320 will be rolled up while the reel 324 rotates. The used part of the filter membrane 320 will move toward the reel 324, so that the unused part will move to the end of the fixed tube 31 away from the joint 2. When the corrugated groove 43 drives the telescopic tube 35 to move to the maximum stroke through the cross bar 45, the telescopic tube 35 will be reset under the action of the reset spring 46, and re-docked with the fixed tube 31, and the filter membrane 320 will be fixed, so that the reel 324 will no longer be rolled up.

[0049] Reference Figure 2-Figure 3 The diameter of the cross bar 45 matches the width of the guide hole 44 , and the spacing between the two positioning rings 41 matches the width of the driving ring 42 .

[0050] Specifically, the guide hole 44 can constrain the moving direction of the cross bar 45, the corrugated groove 43 drives the cross bar 45 to move through the oblique part, and enables the cross bar 45 to be reset through the part parallel to its own axis. The driving ring 42 can only rotate at a distance under the constraint of the two positioning rings 41, and the rest of the structure is the same as that of Example 1.

[0051] In summary, the working principle of the present invention is as follows: after the slide groove 319 of the material roll 318 is aligned with the latch 316, the material roll 318 is sleeved on the outer side of the shaft sleeve 314, and the ejection spring 317 will make the latch 316 extend, and the top of the latch 316 cooperates with the arc groove of the slide groove 319, so that the material roll 318 is fixed, and the filter membrane 320 is moved away from one end of the fixed tube 31 by one foot through the upper arc rod 37 and the top of the discharge roller, and then the filter membrane 320 is sequentially passed through the receiving roller 312 and the bottom of the lower arc rod 310, and the rotating cylinder 314 is rotated. 22 makes the spring 323 accumulate force, and then the reel 324 connected to the filter membrane 320 is sleeved on the outside of the cylinder 322, so that the telescopic tube 35 cooperates with the fixed tube 31 under the action of the reset spring 46, so as to fix the filter membrane 320. When air flows through the pipeline formed by the fixed tube 31 and the telescopic tube 35, it will be filtered by the filter membrane 320. When the filter membrane 320 needs to be replaced, the drive ring 42 is rotated. While the drive ring 42 is rotating, it will drive the cross bar 45 to move through the bellows. After the cross bar 45 is stressed, it moves along the guide The hole 44 moves, and at the same time drives the telescopic tube 35 to move together. After the telescopic tube 35 is subjected to force, it moves in the direction away from the fixed tube 31, so that the filter membrane 320 is no longer fixed. At this time, the clockwork 323 drives the cylinder 322 to rotate. The cylinder 322 rotates and drives the reel 324 to rotate. When the reel 324 rotates, the filter membrane 320 will be rolled up. At this time, the used area of ​​the filter membrane 320 moves toward the direction of the reel 324, and the unused part moves to the fixed tube 31 and the telescopic tube 35. When the telescopic tube 35 reaches the docking position, after the corrugated groove 43 drives the telescopic tube 35 to move to the maximum stroke, the telescopic tube 35 will be reset under the action of the reset spring 46, and will be re-docked with the fixed tube 31 and the filter membrane 320 will be fixed. The replacement of the filter membrane 320 has never been completed. By quickly rotating the drive ring 42, the telescopic tube 35 can be quickly moved and reset. Since the spring 323 is in a power storage state, the spring 323 is wound up at the moment the telescopic tube 35 moves, thereby completing the quick replacement of the working area of ​​the filter membrane 320.

[0052] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A resistance-free oxygen supply and exhaust follow-up breathing device, comprising a main unit (1), a connector (2) arranged at the bottom of the main unit (1), characterized in that: It also includes a winding mechanism (3) arranged on a side of the joint (2) away from the main machine (1), and a driving mechanism (4) arranged outside the winding mechanism (3); The winding mechanism (3) comprises a docking unit arranged on a side of the joint (2) away from the main machine (1), an unwinding unit arranged inside the docking unit, and a rewinding unit arranged on a side of the docking unit away from the unwinding unit; The docking unit comprises a fixed tube (31) arranged on a side of the joint (2) away from the main machine (1), a limiting ring (32) arranged on a side of the fixed tube (31) close to the main machine (1), a cover (33) arranged outside the limiting ring (32), a through hole (34) provided on a side of the cover (33) away from the fixed tube (31), a telescopic tube (35) provided inside the through hole (34), two long grooves (36) symmetrically provided on both sides of the telescopic tube (35), an upper arc rod (37) provided on the inner wall of the top of the cover (33) close to the fixed tube (31), and two symmetrically provided on the cover (33). ) an upper support block (38) on the inner wall of the top of the housing (33) close to the upper arc rod (37), a material discharging roller (39) arranged on the inner side of the upper support block (38), the two ends of the material discharging roller (39) being rotatably connected to the two upper support blocks (38), a lower arc rod (310) arranged on the inner wall of the bottom of the housing (33) close to the telescopic tube (35), two lower support blocks (311) symmetrically arranged on the inner wall of the bottom of the housing (33) close to the lower arc rod (310), and a material receiving roller (312) arranged on the inner side of the lower support block (311), the two ends of the material receiving roller (312) being rotatably connected to the two lower support blocks (311).

2. The resistance-free oxygen supply and exhaust follow-up breathing device according to claim 1 is characterized in that: A circular hole is formed on one side of the cover shell (33) close to the joint (2), and a ring groove is formed inside the circular hole, wherein the shape of the ring groove matches that of the limiting ring (32).

3. The resistance-free oxygen supply and exhaust follow-up breathing device according to claim 1 is characterized in that: The unwinding unit comprises two retaining rings (313) arranged in a linear array at the middle of a fixed tube (31), a shaft sleeve (314) arranged on the outside of the fixed tube (31), the two ends of the shaft sleeve (314) being rotatably connected to the two retaining rings (313), four circular grooves (315) symmetrically arranged at the top and bottom of the shaft sleeve (314), a latch (316) arranged at the top of the circular groove (315), an ejection spring (317) arranged at the bottom of the latch (316), the top and bottom of the ejection spring (317) being fixedly connected to the latch (316) and the circular groove (315), a material roll (318) arranged on the outside of the shaft sleeve (314), two sliding grooves (319) symmetrically arranged on the inner wall of the material roll (318), the top of the latch (316) being clamped with the inner wall of the sliding groove (319), and a filter membrane (320) arranged on the outside of the material roll (318).

4. The resistance-free oxygen supply and exhaust follow-up breathing device according to claim 3 is characterized in that: The top of the slide groove (319) is symmetrically provided with two arc-shaped grooves, and the shapes of the grooves match the top shape of the latch (316).

5. The resistance-free oxygen supply and exhaust follow-up breathing device according to claim 1, characterized in that: The winding unit comprises two circular rings (321) arranged in a linear array in the middle of the telescopic tube (35), a cylinder (322) arranged on the outside of the telescopic tube (35), the two sides of the cylinder (322) being rotatably connected to the two circular rings (321), a spring (323) arranged on the inside of the cylinder (322), the two ends of the spring (323) being fixedly connected to the cylinder (322) and the telescopic tube (35), and a reel (324) sleeved on the outside of the cylinder (322), the outer side of the reel (324) being fixedly connected to a side of the filter membrane (320) away from the fixed tube (31).

6. The resistance-free oxygen supply and exhaust follow-up breathing device according to claim 5, characterized in that: The cylinder (322) has a cavity inside, and both ends of the cylinder (322) have assembly holes that penetrate the cavity.

7. The resistance-free oxygen supply and exhaust follow-up breathing device according to claim 1, characterized in that: The driving mechanism (4) comprises two positioning rings (41) arranged in a linear array in the middle of the housing (33), a driving ring (42) arranged on the outside of the housing (33), a corrugated groove (43) provided on the inner wall of the driving ring (42), two guide holes (44) symmetrically provided on both sides of the housing (33), two cross bars (45) symmetrically arranged on the side of the telescopic tube (35) close to the fixed top tube, one end of the cross bar (45) away from the telescopic tube (35) passes through the guide hole (44) and is slidably connected to the corrugated groove (43), and a return spring (46) sleeved on the side of the telescopic tube (35) away from the cross bar (45), and the two ends of the return spring (46) are respectively fixedly connected to the housing (33) and the ring (321).

8. The resistance-free oxygen supply and exhaust follow-up breathing device according to claim 7, characterized in that: The diameter of the crossbar (45) matches the width of the guide hole (44), and the distance between the two positioning rings (41) matches the width of the driving ring (42).

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