CN202263369U - Table tennis trainer with double rotatable balls - Google Patents

Abstract

The utility model belongs to the field of sports, in particular to a double-ball rotary table tennis practice device used in table tennis teaching and training. It is characterized in that the main frame of the exerciser is welded by a horizontal square tube 5, two upright flat square tubes 3 and two bottom flat square tubes 1, and two sets of the same vernier 13, rotating shaft 7, and support are arranged on the horizontal square tube. Frame 9 and spheroid 10 form. Described sphere is made up of bolt 11 strings through the inner ring hole of bearing 15, and bearing is installed on circular sleeve 16 two ends, bearing outer ring and circular sleeve inner hole interference fit, and nut 14 fastens bearing inner ring end face to form. The bracket is composed of four telescopic flat square tubes. The instrument can be installed on any part of the table tennis table, and the height, bracket angle and length of the two spheres on the exerciser can be adjusted arbitrarily. And the sphere composed of bolts and bearings has strong rotation performance. The exerciser has a simple structure and is convenient to use, and is suitable for table tennis technical and tactical exercises.

Description

Double Ball Rotary Table Tennis Exerciser

technical field

The utility model belongs to the field of sports, in particular to a double-ball rotary table tennis practice device used in table tennis teaching and training.

Background technique

In table tennis teaching and training, the use of exercise equipment for auxiliary exercises can improve the learning efficiency of athletes' table tennis skills. The applicant developed a rotary table tennis training device in 2009, and applied for a Chinese utility model patent, patent number: 200820228131.5. The training device plays a very good auxiliary role in the teaching and training of table tennis techniques such as forehand attack, backhand attack, forehand arc, backhand arc, rubbing, skimming, picking, etc. Practice has proved that it can make Athletes quickly master the essentials of table tennis technical movements in a short period of time. In the long-term practice and use process, it has found its shortcomings, such as: a, this exerciser is a single-ball rotary table tennis exerciser, because only one exercise ball is set, it cannot satisfy the two-point attack and left-hander. Teaching and training of tactics such as pushing right attack; b, the length of the bracket on the exerciser is fixed, because the length cannot be adjusted, which affects the flexibility of the position adjustment of the exercise ball on it; c, the exercise ball used by the exerciser The ball is a nylon ball with a thin screw shaft interspersed in its center, which affects the degree of rotation of the ball.

Contents of the invention

In order to overcome the above-mentioned shortcomings, the present invention proposes a double-ball rotary table tennis exerciser, on which two exercise balls, two sets of cursors and brackets are arranged. Telescopic adjustment arm length. The exerciser can enable athletes to carry out more effective training and practice for various table tennis techniques and tactics.

The technical scheme adopted by the utility model is: a double-ball rotary table tennis exerciser, the main frame of the exerciser is welded by a horizontal square tube, two vertical flat square tubes and two bottom flat square tubes, It is composed of two sets of identical vernier, rotating shaft, bracket and sphere.

The side of the horizontal square tube is provided with several positioning holes, the two ends of the bottom of the horizontal square tube are welded with casters, and the bottom flat square tube is provided with a screw hole, and the threaded rod with the fixing plate passes through the screw hole.

The two sets of verniers are set on the horizontal square tube, the side of the vernier is equipped with a limit adjuster, the upper end of the vernier is welded to the lower end of the rotating shaft, and the outer side of the rotating shaft is welded with two clips with holes and the bottom end of the bracket through adjustable screws Connection, the fork-shaped top screw hole of the bracket is connected with the bolt of the sphere.

The sphere is composed of bolts passing through the inner ring hole of the bearing, the bearings are installed at both ends of the circular sleeve, the outer ring of the bearing is in interference fit with the inner hole of the circular sleeve, and the end face of the inner ring of the bearing is fastened by nuts.

The bracket is composed of four telescopic flat square tubes, each section is fixed with screws.

The exerciser is simple in structure and easy to use, can be installed at any position on the table tennis table as required, and can flexibly adjust the height, bracket angle and length of the two spheres on the exerciser. The inside of the exercise ball is composed of bolts and bearings, so it has strong rotation and is durable. When using this exerciser to practice, you can hit and rub the ball to let the athletes experience the feeling of grinding and grinding, so that the athletes have a clear understanding in their minds, and form a correct movement pattern, quickly establish power and stereotypes . Alternate use of multi-ball practice, single-ball practice and double-ball table tennis practice can avoid the monotony of the training process and stimulate athletes' interest in learning. And when there is no sparring and serving machine, it can avoid the destruction of technical actions due to playing uncertain balls. Athletes practice technical movements by rubbing and hitting the balls on the rack of the double-ball rotary table tennis exerciser. After establishing an effective technical practice effect, they can cooperate with high-density, high-intensity multi-ball practice to improve the excitement of the athletes and establish Conditional reflexes form the correct concept of technical movements, and consolidate the dynamic stereotypes, so as to achieve the purpose of preventing the generalization of technical movements in the early stage and strengthening the stereotypes of technical movements. For athletes who are practicing tactics and competitions in the early stage, their attention is often placed on hitting the ball on the opponent's table, ignoring the essentials of the action, resulting in deformation of the action. Combining tactics, competitions and double-ball table tennis training equipment can enable athletes to focus on technical movements, experience correct footwork, timing of hitting the ball, and hitting line, and establish a good muscle feeling when hitting the ball. The correct technical action enables athletes to quickly improve the hitting rate of the ball. The training device can meet the needs of the public and professional athletes, and the application of the training device has practical significance for improving table tennis technique and tactical training effect.

Description of drawings

Below in conjunction with accompanying drawing, the specific embodiment of the present utility model is described in further detail.

The three-dimensional sketch map of Fig. 1 double-ball rotary table tennis training device;

Fig. 2 is the A-A direction sectional view of Fig. 1;

Fig. 3 is a schematic diagram of a specific embodiment of the present invention.

Detailed ways

The double-ball rotary table tennis training device proposed by the utility model adopts the following structure, as shown in Figure 1 or 2, the main frame of the training device consists of a horizontal square tube 5, two vertical flat square tubes 3 and two bottom flat square tubes. Tube 1 is welded, and the horizontal square tube is provided with two sets of identical vernier 13, rotating shaft 7, bracket 9 and spheroid 10 and forms.

Above-mentioned horizontal square tube side is provided with some positioning holes 6, and caster 4 is welded at two ends of horizontal square tube bottom, and flat square tube 1 at the bottom is provided with screw hole, and the threaded rod 2 with fixed disc passes through screw hole.

The above two sets of cursors are all set on the horizontal square tube, the side of the cursor is equipped with a limit adjuster 12, the upper end of the cursor is welded to the lower end of the rotating shaft, and two clips with holes are welded on the outer side of the rotating shaft and the bottom end of the bracket is passed through adjustable screws 8 connection, the fork-shaped top screw hole of the bracket is connected with the bolt 11 of the sphere.

Above-mentioned spheroid is passed bearing 15 inner ring holes by bolt string, and bearing is installed on circular sleeve 16 two ends, bearing outer ring and circular sleeve inner hole interference fit, and nut 14 fastens bearing inner ring end face to form.

The above-mentioned bracket is composed of four telescopic flat square tubes, and each section is fixed with screws.

When in use, as shown in Figure 3, the athlete is installed on a certain position of the table tennis table according to the content to be practiced with the double-ball rotary type table tennis table, and the exerciser is installed near the end line when practicing two-point attack, Adjust the two verniers to the right and left corners of the table tennis table respectively, fix them through the limit adjuster, and fix them after adjusting the height, angle and length of the bracket. Athletes can repeatedly practice forehand and backhand attacking techniques by hitting and rubbing the two balls on the exerciser according to the practice requirements; they can also practice forehand moving attack, left push right attack or push side attack techniques and tactics in combination with footsteps etc.; you can also adjust the double-ball rotary table tennis exerciser to the near net, the backhand ball to the near table, and the forehand ball bracket to elongate, so that the ball is transferred to the end line to practice rubbing, swinging, and skimming. Combination techniques and tactics of forehand, backhand, forehand loop and backhand loop, etc.

Claims (2)

1. two rotary table tennis exercising machine of ball; This training aids main frame by the upright flat square tube (3) of horizontal square tube (5), two with two at the bottom of flat square tube (1) weld; It is characterized in that horizontal square tube is provided with two covers identical vernier (13), turning cylinder (7), carriage (9) and spheroid (10) and forms.

2. the rotary table tennis exercising machine of pair ball according to claim 1; It is characterized in that said spheroid was gone here and there the interior annular distance of bearing (15) by bolt (11), bearing is installed in circular cover (16) two ends; Outer race and circular cover endoporus interference fit, the fastening bearing inner ring end face of nut (14) is formed.

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