Length-controllable breathing machine threaded pipe and threaded pipe length auxiliary control device
An auxiliary control device and threaded tube technology, applied in the direction of respirators, etc., can solve the problems of increasing the path length and influence of ventilation, and achieve the effect of reducing invalid ventilation paths, avoiding influence, and precise adjustment
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Embodiment 1
[0035] A ventilator threaded tube with controllable length, comprising a main pipe body 1, collars 2 are fixedly connected to both sides of each nodule of the main pipe body 1, two sets of symmetrical connecting plates 3 are fixedly connected to one end of the main pipe body 1, two sets of The connecting plates 3 are located on the same vertical plane, and the two sets of connecting plates 3 are provided with clamping holes 4 on the side away from the main body 1. The two sets of clamping holes 4 correspond to the respective sets of collars on both sides of the main tube 1. The axes of the two are coincident, and the two sets of connecting plates 3 are provided with slots connecting the clamping holes 4 on the side away from the main body 1 .
[0036] It should be noted that the diameter of the clamping hole 4 is smaller than that of the collar 2, and the clamping hole 4, the collar 2 and the slot are used to facilitate the connection of the auxiliary control device for the len...
Embodiment 2
[0038] An auxiliary control device for the length of a threaded pipe, which is used to control the threaded pipe of Embodiment 1, including a casing 5, the casing 5 is fixedly connected to the end of the main pipe body 1 away from the connecting plate 3, and the casing 5 cooperates with the connecting plate 3 to pull the main pipe The body 1 controls the winding mechanism of its length, and the winding mechanism is equipped with a limit mechanism for limiting the length of the main body 1 .
[0039] The winding mechanism includes a rotating rod 6, a coil spring 7 and a winding roller 8. The two ends of the rotating rod 6 are respectively connected to the two sides of the inner wall of the housing 5 and run through the housing 5. The coil spring 7 is wound on the rotating rod 6 and the two ends are respectively Fixedly connected with the rotating rod 6 and the casing 5, two groups of winding rollers 8 are provided, and the two groups of winding rollers 8 are fixedly connected to...
Embodiment 3
[0044]An auxiliary control device for the length of a threaded pipe. On the basis of the second embodiment, the limit mechanism includes a rotating pipe 13 and a block 14. The rotating pipe 13 is arranged perpendicular to the rotating rod 6. The rotating pipe 13 is rotatably connected to the casing 5 and penetrates the casing. 5. There are two sets of clamping blocks 14, and the two sets of clamping blocks 14 are symmetrically and fixedly connected to the bottom of the rotating tube 13, and the side walls of the clamping blocks 14 are arc-shaped.
[0045] Specifically, the limit mechanism includes a resisting tube 15, a rectangular column 16, and an elastic member 17. The top of the resisting tube 15 cooperates with two sets of blocks 14 to have two sets of primary card slots 18 and secondary card slots 19. The two sets of primary card slots The slots 18 and the secondary card slots 19 are distributed in a cross shape, the primary card slot 18 fits with the bottom part of the c...
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