Children's swimming teaching system
A teaching system, children's technology, applied in the field of swimming teaching system, can solve problems such as difficulty in movement, strenuousness, and children's boredom
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Embodiment 1
[0015] exist figure 1 In the first embodiment shown, the children's swimming teaching system includes a buoyancy collar 1 sleeved on the neck, buoyancy ankle collars 21, 22 sleeved on the left and right ankles; the buoyancy ankle collars 21, 22 are composed of air bags, so The airbag is connected to the rubber balls 41, 42 which can be grasped and are full in the natural state through the soft air tube 3; when the rubber balls 41, 42 are full, the buoyant ankle rings 21, 22 are deflated state, the maximum buoyancy force (that is, the buoyancy when the buoyancy ankle ring 21 is completely submerged in water) suffered by the buoyancy ankle ring 21 is not enough to make the child's legs and feet float up; The air of the buoyant ankle rings 21, 22 is pressed into the buoyant ankle rings 21, 22 to make the buoyant ankle rings 21, 22 full. At this moment, the maximum buoyancy force of the buoyant ankle rings 21, 22 makes the children's legs and feet float up.
[0016] In the above ...
Embodiment 2
[0019] for figure 2 The second embodiment shown is different from the first embodiment in that the internal volume of the rubber balls 41, 42 is larger than the internal volume of the buoyancy ankle rings 21, 22 when they are full; the buoyancy ankle rings 21, 22 A pressure relief valve 210, 220 is provided on the rubber ball 41, 42, and a one-way intake valve 410, 420 is provided on the rubber ball 41, 42.
[0020] For the solution of Embodiment 2, when the rubber balls 41, 42 are completely crushed, after the buoyancy ankle circles 21, 22 are filled with air, the excess air will be discharged from the pressure relief valves 210, 220 of the buoyancy ankle circles. A series of air bubbles are formed in the water, so that the feet of the child form a sense of shaking, accompanied by the sound of the air bubbles, to form a command signal to urge the legs and feet that the buoyant ankle ring is corresponding to; the rubber balls 41, 42 rebound Finally, the air leaked from the b...
Embodiment 3
[0022] for image 3 In the shown third embodiment, different from the first embodiment, the two buoyant ankle rings 21, 22 corresponding to the left and right ankles are respectively connected to a common air pressure treatment device through a soft air tube 3; the air pressure treatment device can It is held by an adult with one hand, and in the process of alternately clenching and loosening, the two buoyancy ankle circles 21 and 22 corresponding to the left and right ankles are alternately plump and deflated; the buoyancy ankle circles 21 and 22 When the buoyant ankle ring is in a deflated state, the maximum buoyancy force received by the buoyant ankle ring is not enough to make the child's legs and feet float up; while when the buoyant ankle ring is in a full state, the maximum buoyancy force received by the buoyant ankle ring makes the child's legs and feet float up.
[0023] For the pneumatic processing device, specifically, it includes a cylinder 51, and a slide plug 52 ...
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