Breathing machine support for respiratory support

Abstract

The invention provides a breathing machine support for respiratory support, which comprises a support seat, a support sleeve is upwards arranged at the upper end of the support seat, a support tube is rotatably connected to the support sleeve, a middle connecting rod is rotatably connected to the upper end of the support tube through a first rotating seat, and a suspension rod is rotatably connected to the free end of the middle connecting rod; the free end of the hanging rod is connected with a connecting strip, and the free end of the connecting strip is provided with an elastic pipe hanging hook. The middle connecting rod is sleeved with an operation sleeve rotationally connected with the middle connecting rod, sliding sleeves driven by the operation sleeve to slide are arranged at the two ends of the operation sleeve, an arc-shaped locking strip is arranged on one side of the free end of each sliding sleeve, and a first locking gear matched with the corresponding arc-shaped locking strip is arranged at the free end of the first rotating shaft. And a second locking gear matched with the corresponding arc-shaped locking strip is arranged at the free end of the second rotating shaft. The breathing machine pipeline fixing device is used for fixing a breathing machine pipeline, tightness adjustment can be rapidly conducted during use, operation is convenient and fast, and fixing is reliable.

Description

Technical Field

[0001] The invention belongs to the technical field of medical auxiliary equipment and relates to a ventilator bracket for respiratory support. Background Art

[0002] In the clinical treatment process, ventilators, as an important life support device, are widely used in emergency departments, intensive care units (ICUs) and other occasions that require assisted breathing. Especially when dealing with acute respiratory distress syndrome (ARDS), pneumonia, chronic obstructive pulmonary disease (COPD) and other diseases, ventilators can effectively help patients maintain normal gas exchange, reduce the workload of respiratory muscles, and gain precious time for disease treatment. With the development of medical technology, ventilators are not only used in hospitals, but also in home care environments in some cases.

[0003] When patients need to stay in bed for a long time and receive mechanical ventilation, in order to prevent the ventilator circuit from being accidentally pulled or displaced, a specially designed bracket is usually used to fix the circuit so that it can maintain a stable connection with the patient's artificial airway (such as an endotracheal tube or tracheotomy tube). Currently, there are two main types of ventilator circuit brackets on the market: one is a bendable metal tube or plastic tube made of flexible material. The advantage of this type of bracket is that the shape can be flexibly adjusted according to different scenarios, but due to the lack of sufficient rigid support, it is easy to deform or loosen during long-term use, affecting the fixation effect; the other type is a multi-joint bracket with multiple adjustable points. Although this design can theoretically provide better positioning accuracy and stability, in actual operation, each time the position is adjusted, the tightness needs to be adjusted node by node. The process is cumbersome and time-consuming, especially in emergency environments, which may affect the operating efficiency of medical staff and the safety of patients. Summary of the invention

[0004] The object of the present invention is to provide a ventilator bracket for respiratory support, which is used for fixing ventilator pipelines and can quickly adjust the tightness during use, is easy to operate and can be fixed reliably.

[0005] In order to solve the above technical problems, the present invention provides a ventilator support for breathing support, comprising a support, the upper end of the support is provided with a supporting sleeve upward, the supporting sleeve is rotatably connected to a supporting tube, the upper end of the supporting tube is provided with a first rotating seat, the first rotating seat is rotatably connected to an intermediate connecting rod rotating in a vertical plane, the first rotating seat is provided with a first rotating shaft outwardly, one end of the intermediate connecting rod is provided with a first rotating ring rotatably connected to the first rotating shaft, the free end of the intermediate connecting rod is rotatably connected to a hanging rod rotating in a vertical plane, one end of the hanging rod is provided with a second rotating seat, the second rotating seat is provided with a second rotating shaft outwardly, the free end of the intermediate connecting rod is provided with a second rotating ring rotatably connected to the second rotating shaft, the free end of the hanging rod is connected to a connecting strip, and the free end of the connecting strip is provided with an elastic pipe hanging hook; The intermediate connecting rod is covered with an operating sleeve rotatably connected to it, and both ends of the operating sleeve are provided with threaded sleeves with external threads, each threaded sleeve is threadedly connected to a threaded sliding tube, and the free end of each threaded sliding tube is provided with a sliding sleeve that covers the intermediate connecting rod and is slidably connected to it, and the intermediate connecting rod is provided with limit strips arranged along its length direction at the free ends of the two threaded sleeves, and a limit sliding groove is provided on the inner wall of each sliding sleeve that is slidably connected to the corresponding limit strip, and an arc-shaped locking strip is provided on one side of the free end of each sliding sleeve, and the free end of the first rotating shaft is provided with a first locking gear that matches the corresponding arc-shaped locking strip, and the free end of the second rotating shaft is provided with a second locking gear that matches the corresponding arc-shaped locking strip.

[0006] By adopting the above technical solution, when it is necessary to fix the pipeline, first adjust the position of the elastic pipe hook according to the need, rotate the operating sleeve during adjustment, and through the connection between the threaded sleeve and the threaded sliding tube, the threaded sliding tube moves inward along the middle connecting rod, driving the two arc-shaped locking strips to shrink inward, and not connected to the first locking gear and the second locking gear, so that both ends of the middle connecting rod can rotate relative to the support tube and the hanging rod, and at this time, the position of the elastic pipe hook can be adjusted arbitrarily, realizing one-step loosening and quick adjustment; After the adjustment is completed, rotate the operating sleeve in the opposite direction to make the two threaded sliding tubes move outward along the middle connecting rod, driving the two arc-shaped locking strips to move outward and connect with the first locking gear and the second locking gear respectively, so that the two ends of the middle connecting rod cannot rotate relative to the supporting tube and the hanging rod, thereby realizing one-step locking and fixing of the connection position. At this time, just clamp the breathing tube on the elastic tube hanging hook.

[0007] The present invention is further configured such that the support includes a U-shaped jacket opened in a horizontal direction, a threaded connection hole is provided on a side of the U-shaped jacket away from the support sleeve, a threaded adjustment shaft is threadedly connected to the threaded connection hole, a chuck is provided at one end of the threaded adjustment shaft inside the U-shaped jacket, and a knob is provided at the free end of the threaded adjustment shaft.

[0008] The present invention is further configured such that a lower gear plate with teeth on the upper side is provided at the bottom of the support sleeve, an upper gear plate capable of sliding up and down and with teeth on the lower side is provided above the upper gear plate, a support ring is provided on the inner wall of the support sleeve above the upper gear plate, the support tube is provided at the upper end of the support ring, a transmission slide groove communicating with the interior and having a non-circular cross section is provided upward at the lower end of the support tube, and a transmission slide bar slidably connected to the transmission slide groove is provided upward at the upper end of the upper gear plate; The first rotating seat is provided with a through hole connected to the upper end of the support tube, the middle part of the first rotating ring is provided with the wire groove, one end of the intermediate connecting rod is provided with a wire threading hole connected to the wire groove, the outer wall of the intermediate connecting rod is provided with a wire winding groove, and the wire winding groove is provided with a wire outlet hole connected to the wire threading hole. The upper end of the transmission slide is connected to a pull wire, and the free end of the pull wire passes through the transmission slide groove, the support tube, the through hole, the wire groove, the wire threading hole and the wire outlet hole in sequence and is finally connected to the inner wall of the operating sleeve.

[0009] By adopting the above technical scheme, when the operating sleeve rotates, the pull wire is pulled and wound in the wire winding groove as it rotates, and then the upper gear plate is pulled upward by the pull rope so that it does not mesh with the lower gear plate, so that the support tube can rotate relative to the support sleeve. When the operating sleeve rotates in the opposite direction, the pull wire is reset under the action of the upper gear plate, and the upper gear plate moves downward and meshes with the lower gear plate, so that the support tube cannot rotate relative to the support sleeve, thereby realizing one-step loosening and one-step locking of the rotation of the support tube.

[0010] The present invention is further configured such that the cross-sections of the transmission slide groove and the transmission slide bar are both rectangular.

[0011] The present invention is further configured such that a spring groove is provided on the outer wall of the intermediate connecting rod, a return spring which is sleeved on the intermediate connecting rod is provided in the spring groove, two ends of the return spring are respectively connected to the intermediate connecting rod and the operating sleeve, and when no external force is applied, the return spring drives the operating sleeve to rotate until the arc-shaped locking strip is connected to the first locking gear or the second locking gear.

[0012] The present invention is further configured such that the free end of the suspension rod is connected with a spherical groove, and the free end of the connecting strip is provided with a ball head rotatably connected to the spherical groove.

[0013] The present invention is further configured such that the arc-shaped locking strip is made of elastic rubber material.

[0014] The present invention is further configured such that a tooth groove matching with the first locking gear or the second locking gear is provided on the inner side of the arc-shaped locking strip.

[0015] The present invention is further configured such that an anti-slip groove is provided on the outer wall of the operating sleeve.

[0016] Compared with the prior art, the present invention has the following beneficial effects: First, the bracket of the present invention is designed with a unique locking mechanism, which realizes a rapid locking function through the linkage between the operating sleeve and the threaded sliding tube, and the cooperation between the arc-shaped locking strip and the first locking gear and the second locking gear. When the position of the bracket needs to be adjusted, the locking state can be released by simply rotating the operating sleeve, and after the adjustment is completed, the operating sleeve is released, and the angles of each joint can be quickly locked to ensure the fixation of the bracket position, which greatly improves the operating efficiency.

[0017] Secondly, compared with the traditional multi-joint bracket, the design of the bracket of the present invention simplifies the adjustment steps. The user does not need to adjust the tightness of each joint one by one, but can complete the adjustment and fixation of the entire bracket system through a single operation. This feature enables medical staff to complete the layout of the ventilator pipeline more quickly in an emergency, reducing the operation time and improving the efficiency of emergency treatment.

[0018] Third, the support of the present invention adopts multiple fixing means such as reset spring, locking gear and elastic locking strip to ensure the tight connection of various parts after adjustment. In particular, the meshing of the upper gear plate and the lower gear plate is controlled by the pull wire, which further enhances the stability of the support tube relative to the support. This multiple insurance measure effectively avoids the risk of displacement of the pipeline due to external force during use, and ensures the safety of treatment.

[0019] Fourthly, the bracket of the present invention is designed with multiple adjustable points, allowing the user to easily adjust to the most suitable position according to different usage scenarios and personal needs. Whether it is necessary to fix the ventilator pipeline at a higher or lower position, or to change the direction of the pipeline, it can be achieved through simple operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is an exploded view of the support; Figure 3 It is a partial cross-sectional view used to show the connection between the support sleeve and the support tube; Figure 4Used to demonstrate the connection between the support tube and the middle connecting rod; Figure 5 Used to show the connection between the middle connecting rod and the suspension rod; Figure 6 It is a partial cross-sectional view used to show the connection between the intermediate connecting rod and the operating sleeve; Figure 7 For display of the connection between the suspension rod and the elastic tube hook.

[0021] Among them, 1. U-shaped jacket; 11. threaded connection hole; 12. threaded adjustment shaft; 13. chuck; 14. knob; 2. support sleeve; 21. lower gear plate; 22. upper gear plate; 23. support ring; 24. transmission slide; 3. support tube; 31. first rotating seat; 32. first rotating shaft; 33. first locking gear; 34. transmission slide; 35. through hole; 4. middle connecting rod; 41. first rotating ring; 42. second rotating ring; 43. spring groove; 44. Reset spring; 45. Limiting strip; 46. Wire groove; 47. Threading hole; 48. Wire winding groove; 49. Wire outlet hole; 5. Hanging rod; 51. Second rotating seat; 52. Second rotating shaft; 53. Spherical groove; 54. Second locking gear; 6. Connecting strip; 61. Ball head; 62. Elastic pipe hook; 7. Operating sleeve; 71. Threaded sleeve; 72. Threaded sliding tube; 73. Sliding sleeve; 74. Arc locking strip; 75. Limiting slide groove; 8. Pull wire. DETAILED DESCRIPTION

[0022] The following is a further detailed description of a ventilator support for respiratory support proposed by the present invention in conjunction with the accompanying drawings and specific embodiments. According to the following description, the advantages and features of the present invention will become clearer. It should be noted that the accompanying drawings are all in a very simplified form and are not in precise proportions, which are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention. The same or similar figure numbers in the drawings represent the same or similar parts.

[0023] Example, see Figure 1-7 A ventilator support for respiratory support includes a support, which includes a U-shaped jacket 1 opened in the horizontal direction. A threaded connection hole 11 is opened on the side of the U-shaped jacket 1 away from the supporting sleeve 2. A threaded adjustment shaft 12 is threadedly connected to the threaded connection hole 11. A chuck 13 is arranged at one end of the threaded adjustment shaft 12 in the U-shaped jacket 1. A knob 14 is arranged at the free end of the threaded adjustment shaft 12. When in use, the U-shaped jacket 1 is directly put on the table, and the threaded adjustment shaft 12 is rotated to clamp the chuck 13 to clamp the table to complete the fixation.

[0024] A support sleeve 2 is upwardly arranged at the upper end of the U-shaped jacket 1, and a support tube 3 is rotatably connected to the support sleeve 2. A first rotating seat 31 is arranged at the upper end of the support tube 3, and an intermediate connecting rod 4 rotating in a vertical plane is rotatably connected to the first rotating seat 31. A first rotating shaft 32 is arranged outwardly of the first rotating seat 31, and a first rotating ring 41 rotatably connected to the first rotating shaft 32 is arranged at one end of the intermediate connecting rod 4, and a hanging rod 5 rotating in a vertical plane is rotatably connected to the free end of the intermediate connecting rod 4, and a second A rotating seat 51, a second rotating seat 51 is provided with a second rotating shaft 52 outwardly, a free end of the intermediate connecting rod 4 is provided with a second rotating ring 42 rotatably connected to the second rotating shaft 52, and parking at any position is achieved through the cooperation of the intermediate connecting rod 4 and the hanging rod 5, a connecting bar 6 is connected to the free end of the hanging rod 5, a spherical groove 53 is connected to the free end of the hanging rod 5, a ball head 61 rotatably connected to the spherical groove 53 is provided at the free end of the connecting bar 6, and two elastic tube hanging hooks 62 are provided at the free end of the connecting bar 6, and the breathing tube is clamped by the elastic tube hanging hooks 62.

[0025] The intermediate connecting rod 4 is covered with an operating sleeve 7 rotatably connected thereto, and the outer wall of the operating sleeve 7 is provided with a plurality of anti-slip grooves, and the outer wall of the intermediate connecting rod 4 is provided with two spring grooves 43, and a return spring 44 covered with the intermediate connecting rod 4 is provided in the spring groove 43, and the two ends of the return spring 44 are respectively connected to the intermediate connecting rod 4 and the operating sleeve 7, so that after the operating sleeve 7 is rotated, the return spring 44 can drive the operating sleeve 7 to return to its original position. A threaded sleeve 71 with an external thread is provided at both ends of the operating sleeve 7, each threaded sleeve 71 is threadedly connected to a threaded sliding tube 72, and a sliding sleeve 73 is provided at the free end of each threaded sliding tube 72, which is covered with an intermediate connecting rod 4 and slidably connected to the sliding sleeve 73. The intermediate connecting rod 4 is provided with three limit strips 45 arranged along its length direction at the free ends of the two threaded sleeves 71, and the inner wall of each sliding sleeve 73 is provided with three limit sliding grooves 75 slidably connected to the corresponding limit strips 45. The limit strips 45 not only play a role in limiting the position of the operating sleeve 7 at both ends, but also play a role in limiting the rotation of the sliding sleeve 73. A curved locking strip 74 is provided on one side of the free end of each sliding sleeve 73, a first locking gear 33 matching the corresponding curved locking strip 74 is provided on the free end of the first rotating shaft 32, and a second locking gear 54 matching the corresponding curved locking strip 74 is provided on the free end of the second rotating shaft 52. In order to achieve a locking effect after contacting the locking gear, the curved locking strip 74 is made of elastic rubber material, or a tooth groove matching the first locking gear 33 or the second locking gear 54 is provided on the inner side of the curved locking strip 74.

[0026] A lower gear plate 21 with teeth on the upper side is provided at the bottom of the support sleeve 2, and an upper gear plate 22 which can slide up and down and has teeth on the lower side is provided on the support sleeve 2 above the upper gear plate 22. A circle of support ring 23 is provided on the inner wall of the support sleeve 2 above the upper gear plate 22, and the support tube 3 is provided at the upper end of the support ring 23. A transmission slide groove 34 with a rectangular cross-section and connected to the interior of the support tube 3 is opened upward at the lower end of the support tube 3, and a transmission slide bar 24 slidably connected to the transmission slide groove 34 is provided upward at the upper end of the upper gear plate 22, so that the upper gear plate 22 can rotate with the rotation of the support tube 3. The first rotating seat 31 is provided with a through hole 35 connected to the upper end of the support tube 3, and the middle part of the first rotating ring 41 is provided with a wire groove 46. One end of the intermediate connecting rod 4 is provided with a threading hole 47 connected to the wire groove 46. The outer wall of the intermediate connecting rod 4 is provided with a circle of winding groove 48, and the winding groove 48 is provided with a wire outlet hole 49 connected to the wire outlet hole 47. The upper end of the transmission slide 24 is connected to the pull wire 8. The free end of the pull wire 8 passes through the transmission slide 34, the support tube 3, the through hole 35, the wire groove 46, the wire outlet hole 47 and the wire outlet hole 49 in sequence and is finally connected to the inner wall of the operating sleeve 7. The pull wire 8 is wound in the winding groove 48, and the upper gear plate 22 can be pulled upward by the pull wire 8 so that it does not mesh with the lower gear plate 21.

[0027] Working principle: when it is necessary to fix the pipeline, first adjust the position of the elastic pipe hook 62 as needed, and rotate the operating sleeve 7 during adjustment, so that the threaded sliding tube 72 moves inward along the middle connecting rod 4 through the connection between the threaded sleeve 71 and the threaded sliding tube 72, driving the two arc-shaped locking strips 74 to shrink inward, and not connected to the first locking gear 33 and the second locking gear 54, so that both ends of the middle connecting rod 4 can rotate relative to the support tube 3 and the suspension rod 5, and when the operating sleeve 7 rotates, the pull wire 8 is pulled and wound in the winding groove 48 with the rotation, and then the upper gear disk 22 is pulled upward by the pull rope so that it does not mesh with the lower gear disk 21, so that the support tube 3 can rotate relative to the support sleeve 2, and the position of the elastic pipe hook 62 can be adjusted at will at this time, so as to achieve one-step loosening and quick adjustment; After the adjustment is completed, after loosening the operating sleeve 7, the operating sleeve 7 is driven to rotate in the opposite direction under the action of the reset spring 44, so that the two threaded sliding tubes 72 move outward along the middle connecting rod 4, driving the two arc-shaped locking strips 74 to move outward and connect with the first locking gear 33 and the second locking gear 54 respectively, so that the two ends of the middle connecting rod 4 cannot rotate relative to the support tube 3 and the suspension rod 5, and the pull wire 8 is reset under the action of the upper gear plate 22, and the upper gear plate 22 moves down and meshes with the lower gear plate 21, so that the support tube 3 cannot rotate relative to the support sleeve 2, realizing direct position locking and fixation, and realizing one-step locking. At this time, the breathing tube can be clamped on the elastic tube hanging hook 62.

[0028] It should be noted that the various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0029] The above description is only a description of the preferred embodiments of the present invention, and is not intended to limit the scope of the present invention. Any changes or modifications made by a person skilled in the art in the field of the present invention based on the above disclosure shall fall within the scope of protection of the claims.

Claims

1. A ventilator support for respiratory support, comprising a support, wherein a support sleeve (2) is provided upwardly at the upper end of the support, characterized in that: The support sleeve (2) is rotatably connected to the support tube (3), the upper end of the support tube (3) is provided with a first rotating seat (31), the first rotating seat (31) is rotatably connected to an intermediate connecting rod (4) that rotates in a vertical plane, the first rotating seat (31) is provided with a first rotating shaft (32) outwardly, one end of the intermediate connecting rod (4) is provided with a first rotating ring (41) rotatably connected to the first rotating shaft (32), the free end of the intermediate connecting rod (4) is rotatably connected to a suspension rod (5) that rotates in a vertical plane, one end of the suspension rod (5) is provided with a second rotating seat (51), the second rotating seat (51) is provided with a second rotating shaft (52) outwardly, the free end of the intermediate connecting rod (4) is provided with a second rotating ring (42) rotatably connected to the second rotating shaft (52), the free end of the suspension rod (5) is connected to a connecting strip (6), and the free end of the connecting strip (6) is provided with an elastic pipe hanging hook (62); The intermediate connecting rod (4) is covered with an operating sleeve (7) rotatably connected thereto, and both ends of the operating sleeve (7) are provided with threaded sleeves (71) with external threads, and each threaded sleeve (71) is threadedly connected to a threaded sliding tube (72), and the free end of each threaded sliding tube (72) is provided with a sliding sleeve (73) covered with the intermediate connecting rod (4) and slidably connected thereto, and the intermediate connecting rod (4) is provided with a plurality of free ends of the two threaded sleeves (71) along the length direction thereof. A limit strip (45) is disposed on the inner wall of each sliding sleeve (73), a limit slide groove (75) slidably connected to the corresponding limit strip (45) is provided, a side of the free end of each sliding sleeve (73) is provided with an arc-shaped locking strip (74), the free end of the first rotating shaft (32) is provided with a first locking gear (33) matching with the corresponding arc-shaped locking strip (74), and the free end of the second rotating shaft (52) is provided with a second locking gear (54) matching with the corresponding arc-shaped locking strip (74).

2. A ventilator support for respiratory support according to claim 1, characterized in that: The support comprises a U-shaped jacket (1) which is open in a horizontal direction, a threaded connection hole (11) being provided on a side of the U-shaped jacket (1) away from the support sleeve (2), a threaded adjustment shaft (12) being threadedly connected to the threaded connection hole (11), a chuck (13) being provided at one end of the threaded adjustment shaft (12) inside the U-shaped jacket (1), and a knob (14) being provided at the free end of the threaded adjustment shaft (12).

3. A ventilator support for respiratory support according to any one of claims 1 or 2, characterized in that: The bottom of the support sleeve (2) is provided with a lower gear plate (21) with teeth on the upper side; the support sleeve (2) is provided with an upper gear plate (22) capable of sliding up and down and with teeth on the lower side above the upper gear plate (22); the inner wall of the support sleeve (2) is provided with a support ring (23) above the upper gear plate (22); the support tube (3) is provided at the upper end of the support ring (23); the lower end of the support tube (3) is provided with a transmission slide groove (34) communicating with the interior thereof and having a non-circular cross section; the upper end of the upper gear plate (22) is provided with a transmission slide bar (24) slidably connected to the transmission slide groove (34); The first rotating seat (31) is provided with a through hole (35) connected to the upper end of the support tube (3); the first rotating ring (41) is provided with the wire groove (46) in the middle; one end of the intermediate connecting rod (4) is provided with a wire threading hole (47) connected to the wire threading hole (46); the outer wall of the intermediate connecting rod (4) is provided with a wire winding groove (48); the wire winding groove (48) is provided with a wire outlet hole (49) connected to the wire threading hole (47); the upper end of the transmission slide bar (24) is connected with a pull wire (8); the free end of the pull wire (8) passes through the transmission slide groove (34), the support tube (3), the through hole (35), the wire groove (46), the wire threading hole (47) and the wire outlet hole (49) in sequence and is finally connected to the inner wall of the operating sleeve (7).

4. A ventilator support for respiratory support according to claim 3, characterized in that: The cross-sections of the transmission slide groove (34) and the transmission slide bar (24) are both rectangular.

5. A ventilator support for respiratory support according to claim 1, characterized in that: The outer wall of the intermediate connecting rod (4) is provided with a spring groove (43), and a return spring (44) is arranged in the spring groove (43) and is sheathed around the intermediate connecting rod (4). Two ends of the return spring (44) are respectively connected to the intermediate connecting rod (4) and the operating sleeve (7). When no external force is applied, the return spring (44) drives the operating sleeve (7) to rotate until the arc-shaped locking strip (74) is connected to the first locking gear (33) or the second locking gear (54).

6. A ventilator support for respiratory support according to claim 1, characterized in that: The free end of the suspension rod (5) is connected to a spherical groove (53), and the free end of the connecting strip (6) is provided with a ball head (61) rotatably connected to the spherical groove (53).

7. A ventilator support for respiratory support according to claim 1, characterized in that: The arc-shaped locking strip (74) is made of elastic rubber material.

8. A ventilator support for respiratory support according to claim 1, characterized in that: A tooth groove matching the first locking gear (33) or the second locking gear (54) is provided on the inner side of the arc-shaped locking strip (74).

9. A ventilator support for respiratory support according to claim 1, characterized in that: The outer wall of the operating sleeve (7) is provided with an anti-slip groove.

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