CN103055486B - Discus Throw Last Force Simulator - Google Patents

Abstract

The present invention relates to a discus last force simulating exerciser. This discus final force simulating exerciser includes a base, a column, a curved plate, a discus, a waist elastic fixing belt, and a pulley mechanism. There is an arc-shaped hole on the arc-shaped plate, the discus has a central shaft, and the central shaft passes through the arc-shaped hole and is fixedly installed with the circular discus seat; the top of the bracket of the pulley mechanism is fixed with the first fixed pulley , the steel wire rope passes through the first fixed pulley and the first movable pulley and is fixedly connected with the central axis of the discus, the second movable pulley is connected with the first movable pulley through a connecting piece, the second fixed pulley is fixed at the bottom of the bracket, and another steel wire rope passes through the first movable pulley After the second movable pulley and the second fixed pulley, they are fixedly connected with the waist elastic fixing belt. The invention can meet the needs of the trainer's waist and hands to move at the same time, realize the coherent technical action that the hip drives the throwing arm, and avoid the phenomenon of deformation and decomposition of the trainer's throwing action.

Description

Discus Throw Last Force Simulator

1. Technical field:

The invention relates to a simulation training device used in physical education teaching, in particular to a discus final force simulation training device.

2. Background technology:

The final force of the discus is the most important stage in the complete technique of discus throwing. The longer the working distance of the human body, the greater the force acting on the discus and the faster the speed, the greater the initial velocity of the discus when it is released. Coupled with a reasonable order of force and a suitable shooting state, the throwing distance will be farther. At present, in the discus final force teaching and training, methods such as unarmed in situ throwing imitation exercises, rubber band pulling imitation exercises, and swinging barbell plates are mainly used for final force exercises. However, the following problems exist in adopting the above-mentioned exercise method: it is easy to cause the practitioner's body center of gravity to be unstable, the angle of release is difficult to grasp, and the effective force distance is short. The decomposing action of the legs brings a certain degree of difficulty to the discus teaching, and also affects the training effect of the practitioner to a certain extent. However, the existing discus throwing trainer only trains the repeated throwing action of the throwing arm repeatedly by restraining the throwing arm, so that the trainer can focus more on the throwing arm. After long-term training, the trainer often cannot A good grasp of the hip to drive the throwing arm to perform coherent technical movements can not form a standardized technical movement, which affects beginners' learning of the discus.

3. Contents of the invention:

The object of the present invention is to provide a discus final force simulation exercise device, which is used to solve the problems that current practitioners are difficult to grasp during the discus final force teaching and training, such as reasonable angle of release, increased range of motion, and stable center of gravity of the body. At the same time, it also solves the problem that the hip drives the throwing arm to perform coherent technical movements and establishes the correct sequence of final exertion.

The technical solution adopted by the present invention to solve its technical problems is: this discus last force simulation exerciser includes a base, a column, a curved plate, a discus, a waist elastic fixing belt, a pulley mechanism, a column is fixed on the base, and a Inclined arc plate, there is an arc hole on the arc plate, the arc hole is set along the length direction of the arc plate, the discus has a central axis, the central axis passes through the arc hole and is fixedly installed with the circular discus seat, The discus can slide along the arc-shaped hole; the pulley mechanism is composed of a bracket, a first fixed pulley, a first movable pulley, a second movable pulley, a second fixed pulley and a wire rope. The first fixed pulley is fixed on the top of the bracket, and the wire rope passes through the first fixed pulley. The pulley and the first movable pulley are fixedly connected with the central axis of the discus, the second movable pulley is connected with the first movable pulley through a connecting piece, the second fixed pulley is fixed at the bottom of the bracket, and another wire rope passes through the second movable pulley and the second fixed pulley Finally, it is fixedly connected with the waist elastic fixing belt.

In the above scheme, there are three columns, two of which are fixed at both ends of the arc-shaped plate, the third column is fixed at the midpoint of the arc-shaped plate, and the two columns fixed at both ends of the arc-shaped plate are of equal height, and the third column The height is less than the other two uprights, so that the curved plate is inclined after being fixed on the uprights.

In the above scheme, the three uprights are all provided with a height adjustment mechanism, and the height of the uprights can be adjusted through the height adjustment mechanism to meet the needs of trainers of different heights.

The lower end of the discus center shaft has threads in the above-mentioned scheme, and the discus seat has a central hole, and the center hole wall has threads, and the central shaft is threadedly connected with the discus seat.

In the above scheme, there is an elastic band on the top of the discus, and the hands of the trainer pass through the elastic band during training, so that the hands can hold the discus better.

Beneficial effect:

According to the biomechanical analysis of the basic movement of the human body and related theories such as exercise physiology, and in combination with the characteristics of the mechanism of the fitness equipment, the present invention enables the trainee to fix the discus at one position and perform repeated swinging exercises when using the discus to simulate the exerciser with force at the end. It will cause the body's center of gravity to be unstable, the angle of the shot to be inaccurate, and the throwing action to deform and decompose.

4. Description of drawings:

Fig. 1 is a structural representation of the present invention;

Fig. 2 is the structure diagram of discus and discus holder in the present invention.

1-base; 2-column; 3-arc plate; 4-arc hole; 5-discus; 6-waist elastic fixing belt; 7-central axis; 8-discus seat; Pulley; 11-the first movable pulley; 12-wire rope; 13-the second movable pulley; 14-the second fixed pulley; 15-wire rope.

5. Specific implementation methods:

Below in conjunction with accompanying drawing, the present invention will be further described:

As shown in Figure 1, this discus last force simulation exerciser comprises base 1, column 2, arc-shaped plate 3, discus 5, waist elastic fixed belt 6, pulley mechanism, and base 1 is circular, and base 1 is fixed with A column 2, an inclined arc plate 3 is fixed on the column 2, the arc plate 3 is a semicircular iron plate, there is an arc hole 4 on the arc plate 3, and the arc hole 4 is located at the center of the arc plate 3, And the same shape as the arc plate 3, the arc hole 4 is arranged along the length direction of the arc plate 3, but the two ends of the arc plate 3 are closed, that is to say the length of the arc hole 4 is less than the length of the arc plate 3 . As shown in Figure 2, the discus 5 has a central shaft 7, and the central shaft 7 passes through the arc-shaped hole 4 and is fixedly installed with a circular discus seat 8. Specifically, the lower end of the discus central shaft 7 is threaded, and the discus seat 8 has a center hole, the central hole hole wall has threads, and the central axis 7 is threadedly connected with the discus seat 8; Side, the discus 5 can slide along the arc hole 4, the top of the discus 5 also has an elastic band. The pulley mechanism is made up of support 9, the first fixed pulley 10, the first movable pulley 11, the second movable pulley 13, the second fixed pulley 14, and a wire rope. The support 9 is arranged on the side of the arc plate 3, and the top of the support 9 is fixed with a first Fixed pulley 10, wire rope 12 passes through the first fixed pulley 10, the first movable pulley 11 and is fixedly connected with the central axis 8 of the discus, the second movable pulley 13 is connected with the first movable pulley 11 through a connector, the second movable pulley 13, the first movable pulley 11 are arranged on the lower half of support 9, and the second fixed pulley 14 is fixed on the bottom of support 9, after another steel wire rope 15 passes through second movable pulley 13, second fixed pulley 14, is fixedly connected with waist elastic fixed belt 6 , the waist elastic fixing belt 6 adopts the elastic belt commonly used by athletes to tighten the waist.

In the present invention, there are three columns 2, two of which are fixed at the two ends of the arc-shaped plate 3, the third column is fixed at the midpoint of the arc-shaped plate 3, and the heights of the two columns fixed at the two ends of the arc-shaped plate 3 are equal. The height of the third column is less than the other two columns, and like this, the curved plate 3 is inclined after being fixed on the column 2. There are height adjustment mechanisms on the three columns, through which the height of the columns can be adjusted. The height adjustment mechanism can be formed by setting an adjustment sleeve and installing holes on the column. There are several holes on the adjustment sleeve. The height adjustment of the column is realized by corresponding to different mounting holes.

When using the present invention for training, the trainer stands on the base 1, buckles the waist elastic fixing belt 6 on the waist, holds the iron handle 5, and when the waist is twisted forcefully, holds the iron handle 5 and slides along the arc-shaped hole 4 at the same time. When the second movable pulley 13 moves downward, the first movable pulley 11 also moves downward with the second movable pulley 13, and the steel rope 15 connected with the waist elastic fixed belt 6 and the steel rope 12 connected with the discus 5 are fed synchronously, which can cooperate with the trainer The need for simultaneous movement of the waist and hands enables the hip to drive the throwing arm to perform coherent technical movements, effectively combining the movements of the hip and the throwing arm, and exerting force at the same time, which inspires the trainer's awareness of the discus throwing technique In order to avoid the mistakes of trainers, especially beginners, who separate the movements of the hip and throwing arm from each other, and avoid the phenomenon of deformation and decomposition of throwing movements.

In addition, the present invention enables the practitioner to fix at one position for repeated swinging exercises. Since the discus can only move along the arc-shaped hole, the angle of the practitioner's shot is accurate, which is of great help to improve the discus practitioner's final forceful technical movements and accuracy. .

Claims (5)

1. A discus final force simulation exerciser, characterized in that: the discus final force simulation exerciser includes a base (1), a column (2), an arc plate (3), a discus (5), and a waist elastic fixing belt (6) Pulley mechanism, the base (1) is fixed with a column (2), the column (2) is fixed with an inclined arc-shaped plate (3), and there is an arc-shaped hole (4) on the arc-shaped plate (3) , the arc-shaped hole (4) is set along the length of the arc-shaped plate (3), the discus (5) has a central shaft (7), and the central shaft (7) passes through the arc-shaped hole (4) and connects with the circular discus seat (8) Fixed installation, the discus (5) can slide along the arc hole (4); the pulley mechanism consists of a bracket (9), a first fixed pulley (10), a first movable pulley (11), a second movable pulley (13), The second fixed pulley (14) and a steel wire rope are formed, the top of the support (9) is fixed with the first fixed pulley (10), and a steel wire rope (12) passes through the first fixed pulley (10) and the first movable pulley (11). It is fixedly connected with the central shaft (7) of the discus, the second movable pulley (13) is connected with the first movable pulley (11) through a connecting piece, the second fixed pulley (14) is fixed at the bottom of the bracket (9), and another steel wire rope ( 15) After passing through the second movable pulley (13) and the second fixed pulley (14), it is fixedly connected with the waist elastic fixing belt (6). 2. The discus final force simulation exerciser according to claim 1, characterized in that: there are three columns (2), two of which are fixed at both ends of the arc-shaped plate (3), and the third column is fixed At the midpoint of the arc-shaped plate (3), the heights of the two columns fixed at the two ends of the arc-shaped plate (3) are equal, and the height of the third column is less than the height of the other two columns. 3. The discus final force simulation exerciser according to claim 2, characterized in that: the three columns (2) are all provided with height adjustment mechanisms. 4. The discus last force simulation exerciser according to claim 3 is characterized in that: the lower end of the discus central axis (7) has threads, the discus seat (8) has a center hole, and the center hole wall has threads, The central shaft (7) is threadedly connected with the discus seat (8). 5. The discus final force simulation exerciser according to claim 4, characterized in that: said discus (5) has an elastic band on it.