A kind of Inflatable bar spanning training device for infantsTechnical field the present invention relates to a kind of infant's early education teaching aid.
Background technology is current, in child's early education mechanism, child is crossed in the training of cross bar, general is all that hollow cross bar that a duroplasts is made or the two ends frame of wooden stock are used as teaching aid on object, when having child to cross over cross bar failure, cross bar falls within ground, if child has stepped down in very easily to fall down, damage on hard cross bar, even sprain the teaching accidents such as ankle-joint, have potential safety hazard.When child is once injured or is seen that other children come to harm, in the face of can producing the feared state of mind, this hard cross bar child refuses training, there is mental handicape hidden danger.
Summary of the invention the object of the present invention is to provide a kind of Inflatable bar spanning training device for infants simple in structure, easy to use.The present invention mainly comprises base, cylinder air bag and hollow elbow.Wherein, base is lower cylinder, upper truncated cone, and its material is nonmetal flexible material; Cylinder air bag is made by thick plastics or rubber material; Hollow elbow is made by the rigid non-metallic material of lighter weight, and its internal diameter is slightly less than the external diameter of cylinder air bag; Cylinder air bag is through two hollow elbows, by the plane of two terminations of cylinder air bag respectively with two bases on the upper plane adhesion of truncated cone; Near base position, be provided with an aerating device.
Advantage of the present invention:
One, the design of cylinder, upper truncated cone under base of the present invention, add that its material is that nonmetal flexible material is as rubber or PU material, make this equipment there is in use good stability, its cylinder air bag is the design across the bar training body of rod as child, the feared state of mind in the time of can avoiding or eliminate child across bar, eliminates mental handicape hidden danger.
Two, this device can ground by regulating distance between two hollow elbows and base to realize easily the lifting of crosspiece air bag, to meet various teaching object height, Leg length and different training stage to the requirement across bar height.
Three, if child is across bar when failure, the airtight air bag of its hollow can with being subject to, force direction be tortuous, distortion, can effectively avoid or reduce child and tumble, damage or sprain after foot-operated, has eliminated potential safety hazard.
Four, child can recover original state automatically across bar failure separating device rear gasbag, makes teaching more convenient.
Five, collapsible or curling after this device air bag deflation, volume is little, is convenient to transmitting-receiving and deposits or carry.
Six, this equipment is suitable for applying in across bar training or play instruction child.
Accompanying drawing explanation
Fig. 1 is schematic perspective view of the present invention.
Fig. 2 is that the master of base of the present invention looks simplified schematic diagram.
Fig. 3 is the schematic perspective view of hollow elbow.
Fig. 4 makes the schematic perspective view after crosspiece air bag raises by adjusting hollow elbow height.
The specific embodiment
Bar spanning training device for infants involved in the present invention as shown in Figure 1, Figure 2, Figure 3 and Figure 4.This invention mainly comprises base 1, cylinder air bag 2 and hollow elbow 3.Wherein, base 1 is lower cylinder, upper truncated cone, and its material is nonmetal flexible material; Cylinder air bag 2 is made by thick plastics or rubber material; Hollow elbow 3 is made by the lighter rigid non-metallic material of weight, and its internal diameter is slightly less than the external diameter of cylinder air bag 2; Cylinder air bag 2 is through two hollow elbows 3, by the plane of two terminations of cylinder air bag 2 respectively with two bases 1 on the upper plane adhesion of truncated cone; Near base 1 place, be provided with an aerating device 4.
Using method: the position of adjusting two hollow elbows, two hollow elbows are equated with two base spacings respectively, stretch two cylinder air bags between hollow elbow in alignment, two bases are placed on respectively on the ground of linearity cylinder air bag homonymy, by aerating device, air bag gassy is become to " Π " shape, the position of adjusting base makes two hollow elbows respectively directly over two bases.Crosspiece air bag between two hollow elbows is that child is across the cross bar of bar training.