CN2267836Y

CN2267836Y - Assistant for learning breststroke

Info

Publication number: CN2267836Y
Application number: CN 96237029
Authority: CN
Inventors: 严庆
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-06-04
Filing date: 1996-06-04
Publication date: 1997-11-19
Anticipated expiration: 2006-06-04

Abstract

The utility model provides a swimming learning aid device for training legs, which is composed of a blade and a foot sleeve. The blade is divided into an upper blade, a lower blade and a back blade. The upper and the lower blades are movably connected with a convex body middle cavity of a middle plate of a foot part through bolts. The middle plate of the foot part is fixed on a bottom plate of the foot part by screws. The back blade together with a middle plate of an ankle part is fixed with a bottom plate of the ankle part through screws. The foot sleeve is arranged on the bottom plate of the foot part and the bottom plate of the ankle part. The utility model effectively improves the force and the diathesis of muscles at the leg part, so as to achieve the purpose of improving the overall skills of breaststroke swimming.

Description

The breaststroke learning-aid device

The utility model relates to a kind of learning-aid device of the shank training of swimming.

At present, the method for carrying out breaststroke shank training is to hold up plate kick exercise in water.

Hold up plate kick exercise owing to can not increase its heavy burden,, can't further improve, promote the overall development of this swimming technique so there is wretched insufficiency in the special quality of development shank.

The purpose of this utility model is to improve effectively the strength quality and the speed quality of shank intramuscular, thereby reaches the purpose that improves the breaststroke overall technology.

A kind of breaststroke learning-aid device is made up of blade and footmuff, it is characterized in that blade is divided into blade, lower blade and rear blade, and blade flexibly connects by the convex body lumen of plate in stay bolt and the foot up and down, and plate is fixed on foot's base plate by screw in the foot; Rear blade is fixed on the ankle base plate by screw plate in ankle; Footmuff is placed on foot's base plate and the ankle base plate.

The utility model advantage is:

1. standard breaststroke leg techniques makes its more science, laborsaving.

2. the breaststroke learning-aid device closes up because of water resistance makes blade in receiving the leg action; After turning over pin, blade opens automatically because of water resistance again, increases the water resistance face, stimulates shank each several part muscle, the purpose that its various quality are improved thereby reach.

When kicking one's legs backward, upper and lower blade is opened automatically with rear blade and is formed powerful resistance area, pedals resistance behind the increase pin, thereby directly stimulates rectus femoris; In the rear section of kicking one's legs, legs joined at this moment, stimulates adduction of the hip joint flesh; When receiving leg, upper and lower blade closes up automatically, and it is vertical that rear blade changes into human body, at this moment owing to the blade effect, limits the trend of two legs, but specification technique has on the frog palm simultaneously, and making the back receive leg has certain resistance, can stimulate shank to receive the leg muscle group again; When turning over pin, because the steering drag of rear blade, pin outward turning burden reduces, and makes laterotorsio crura freely.

Be described further below in conjunction with accompanying drawing.

Fig. 1 is the utility model overall structure figure;

Fig. 2 is the upward view of Fig. 1.

See also accompanying drawing, there are two

base plates

1,2 inboard of footmuff 6,

base plate

1,2 is emptied in inner appropriate location part, empty position 10 it is fixed thereby the rubber of footmuff 6 is injected into, at

base plate

1,2 another sides plate 4 in the plate 3 and ankle is arranged in the foot, middle plate 3,4 is fixed on the

bottom

1,2 in the relevant position by screw, and middle plate 3,4 links to each other with screw 13 in the artis position, owing to be,, pin rotates so can doing to stretch in footmuff 6 to bend in the artis position.There are some hollow convex bodys 11 another side of middle plate 3, in this convex body 11, wear a stay bolt 5, connect by bolt 5, on the

lower blade

7,8,

lower blade

7,8 can relative in plate 3 rotate, another side at middle plate 4 connects a rear blade 9 by screw 12 in the ankle-joint position, owing to be in the ankle-joint position, so sole can be done an amount of rotation by ankle-joint.

Above-mentioned blade forms with plastics, and base plate, middle plate are that alloy steel products is made, and footmuff is made with rubber.

Claims

1. a breaststroke learning-aid device is made up of blade and footmuff, it is characterized in that blade is divided into blade, lower blade and rear blade, and blade flexibly connects by the convex body lumen of plate in stay bolt and the foot up and down, and plate is fixed on foot's base plate by screw in the foot; Rear blade is fixed on the ankle base plate by screw plate in ankle; Footmuff is placed on foot's base plate and the ankle base plate.

2. breaststroke learning-aid device according to claim 1 is characterized in that base plate adapts to the position part and empties in inside, and the rubber injection of footmuff is emptied the position and fixed.

3. breaststroke learning-aid device according to claim 1 is characterized in that a joint is arranged between the plate in the ankle under the plate in the foot, connects for rotating.