A sitting posture correction device
A technology of sitting posture and fixed seat, applied in the field of eye protection and auxiliary equipment for children's habit formation, can solve problems such as improper sitting posture and incorrect distance, and achieve the effect of eliminating rejection psychology.
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Embodiment 1
[0026] Such as Figure 1 to Figure 3 As shown, a sitting posture correcting device includes a chin rest 1, a fixed seat 7 and a connecting rod for connecting the chin rest 1 and the fixed seat 7, and the connecting rod includes a telescopic rod 3, a fastening nut 4, and a telescopic tube 5 and the tube base 6, the tube base 6 is fixed on the fixed seat 7, the lower end of the telescopic tube 5 is hingedly connected with the tube base 6, the upper end of the telescopic tube 5 is provided with an external thread for pipe thread, and the pipe thread section is also provided with There is a strip-shaped and lengthwise variable diameter slot 52 along the longitudinal direction of the telescopic tube 5. The lower end of the telescopic rod 3 is located in the inner hole 51 of the telescopic tube 5. The fastening nut 4 is threaded on the pipe thread, and the telescopic rod 3 The upper end of the upper end is provided with an external thread, the chin rest 1 is threadedly connected to ...
Embodiment 2
[0030] The present embodiment is further limited on the basis of embodiment 1, as Figure 1 to Figure 3 As shown, the diameter reduction groove 52 provided is used for the expansion or reduction of the end of the telescopic cylinder 5 when the diameter of the pipe thread section is reduced. There are at least three diameter-reducing grooves 52 for the inner diameter of the section, and the diameter-reducing grooves 52 are evenly distributed in an annular shape relative to the axis of the telescopic cylinder 5 .
[0031] As a structure that is easy to adjust the position of the movable baffle 73, the base 71 is also provided with at least two strip-shaped adjustment grooves 72, and each adjustment groove 72 is provided with an adjustment screw. The threaded sections of the adjusting screws are all threaded on the movable baffle 73, and the groove width of the adjusting groove 72 is smaller than the diameter of the top hat of the adjusting screw.
[0032] In order to facilitate t...
Embodiment 3
[0035] This embodiment is further limited on the basis of any one of the solutions provided in the above embodiments. In order to enable the present invention to be self-installed or detached for children with little strength, and at the same time to facilitate the stability of the present invention's fixation, the fastening screw The thread on the 8 is a fine thread.
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