CN209696240U - A kind of tennis training machine - Google Patents

Abstract

The utility model discloses a kind of tennis training machines, including center bearing bracket, cross bar, swing seat, swing arm and simulation tennis；Center bearing bracket includes bracket outer tube, and the first T-type card slot is provided on the side of bracket outer tube；One end of cross bar is provided with fastener, and cross bar is by the cooperation of fastener and the first T-type card slot to be fixedly plugged on the bracket outer tube；Swing seat is rotatablely installed on the other end of cross bar；The both ends of torsion spring member are connect with swing seat and the cross bar respectively；Swing arm setting is in swing seat and vertical with cross bar；It is fixed on a swing arm to simulate tennis.The same tennis of impact can be repeated several times in trainer in a short time, do not need other people and carry out cooperation service and pick up ball, save plenty of time and physical strength；And the position that tennis resets every time is identical；The height of tennis can be adjusted, tennis training machine is made to be adapted to the use crowd of different heights.

Description

A tennis trainer

technical field

The utility model relates to the field of sporting goods, in particular to a tennis training device.

Background technique

Tennis is a sport that is popular all over the world. It is highly competitive and entertaining, and the number of fans participating in this sport is also very large. Because tennis has high technical requirements and requires certain training to get started, standard movements are very important for beginners, and the requirements for hitting accurate parts are relatively high. In traditional practice, athletes need to pick up a lot of balls after practice, which wastes time and energy, and they need to prepare a lot of tennis balls before practice, but the emergence of tennis practice equipment has avoided this cumbersome problem.

The tennis trainer on the market generally has following several kinds at present: (1) the tennis trainer that adopts the combination of base and elastic rope needs to fill water or sand to the base before use, so that the base has enough self-weight to keep stable. The athlete hits the tennis ball tied on the elastic rope or the elastic rope. After the tennis ball flies a certain distance, it rebounds due to the elastic force of the elastic rope, so as to achieve the effect of repeated hitting many times. This trainer is inconvenient to use and cannot control the rebounding position of the tennis ball, which easily accelerates the wear and tear of the athlete's physical strength. (2) Tennis ball launcher, the tennis ball launcher has complex structure, large footprint, high cost, and cannot be widely used at present. (3) An elastic rod made of elastic material is used to fix the tennis ball on the elastic rod. When hitting the tennis ball, the elastic rod can return the tennis ball due to its own elastic potential energy. Because the strength of hitting tennis balls is usually relatively large, the material of the elastic rod will also be made of a material with strong elasticity, which causes the elastic rod to continue to vibrate back and forth after returning to its position, making it difficult for the athlete to grasp the position of the tennis ball. The experience is not good.

Utility model content

In order to overcome the deficiencies of the prior art, the purpose of this utility model is to provide a tennis machine, which can make the tennis ball rebound and reset after being hit, and can adjust the setting height of the tennis ball.

The utility model adopts following technical scheme to realize:

A tennis trainer, the tennis trainer includes a central support, a cross bar, a swing seat, a swing arm and a simulated tennis ball; the central support includes a support outer tube, and a first T-shaped structure is arranged on the side of the support outer tube A card slot; one end of the cross bar is provided with a clip, and the cross bar is fixedly inserted on the outer tube of the bracket through the cooperation of the clip and the first T-shaped slot; The swing seat is rotatably mounted on the other end of the cross bar; the two ends of the torsion spring assembly are respectively connected to the swing seat and the cross bar; the swing arm is arranged on the swing seat and connected to the cross bar Vertical; the simulated tennis ball is fixed on the swing arm.

Further, a Y-shaped tennis rack is provided at the top of the swing arm; two coaxial tennis fixed shafts are provided at both ends of the Y-shaped tennis rack, and the simulated tennis is movable and socketed on the tennis fixed shafts .

Further, a limiting piece is fixedly arranged on the cross bar, and one end of the limiting piece is pressed against the side of the swing seat.

Further, the swing arm is hinged on the swing seat, and the direction of its rotation axis is the radial direction of the cross bar, so that the swing arm is vertical or parallel to the cross bar. Switch between locations.

Further, the side of the outer tube of the bracket is provided with a plurality of first T-shaped slots with different heights, and the first T-shaped slots are evenly arranged at equal distances in the vertical direction.

Further, the central bracket also includes a bracket inner tube, and the bracket inner tube is sleeved inside the bracket outer tube; the bracket inner tube is provided with a plurality of equidistant height adjustment holes, and the bracket outer tube The tube is provided with a spring buckle seat and a buckle seat hole, and the spring buckle seat is fastened in the height adjustment hole and the buckle seat hole, so that the bracket inner tube and the bracket outer tube are fixed.

Further, the bracket outer tube also includes a top end cover; the top end cover fixed cover is arranged on the top of the bracket outer tube, and the bottom of the top end cover is provided with a second T-shaped slot.

Further, the tennis trainer also includes a base, and the base is fixed on the bottom of the central support; the base includes a base body, feet and non-slip pads, and the feet are circumferentially arranged on the base On the main body, the anti-skid pad is fixed on the bottom of the foot.

Further, the feet are hinged on the main body of the base, so that the feet can be switched between unfolded and folded states.

Compared with the prior art, the beneficial effect that the utility model can achieve is: after the simulated tennis ball is hit, the swing arm and the swing seat rotate around the central axis of the cross bar, and then are rebounded and reset by the rebound force of the torsion spring assembly. The same tennis ball can be hit repeatedly in a short period of time, without the need for other trainers to cooperate with serving and picking up the ball, which saves a lot of time and physical strength; and the tennis ball resets to the same position each time, so the trainer does not need to move repeatedly. Cooperate with the rebounding position of the tennis ball; the cross bar can be adjusted to the height of the tennis ball by being inserted into the first T-shaped slot of different heights on the outer tube of the bracket, so that the tennis trainer can adapt to users of different heights, and can A variety of technical movements with hitting heights are used for training, which expands the training range and enhances the training effect.

Description of drawings

Fig. 1 is the three-dimensional schematic diagram of tennis trainer;

Fig. 2 is a schematic diagram of the state of the tennis trainer when hitting simulated tennis;

Fig. 3 is an exploded view of the tennis trainer;

Fig. 4 is the partial view of A place of Fig. 3;

Fig. 5 is a partial view at the B place of Fig. 3;

Fig. 6 is the partial view of the C place of Fig. 3;

Fig. 7 is the schematic diagram of end cap;

Fig. 8 is the schematic diagram of Y-shaped tennis rack;

Fig. 9 is a schematic diagram of the swing arm in a folded state;

Fig. 10 is a schematic diagram of the tennis trainer as a whole in a folded state.

In the figure: 10, center bracket; 11, bracket outer tube; 111, first T-shaped slot; 112, buckle seat hole; 113, top cover; 114, second T-shaped slot; 12, bracket inner tube; 121 , Height adjustment hole; 13, Spring buckle seat; 20, Cross bar; 21, Fastening piece; 22, Limit piece; 30, Torsion spring assembly; 40, Swing seat; 50, Swing arm; 60, Y-shaped tennis rack ; 61, fixed shaft of tennis ball; 70, simulated tennis ball; 80, base; 81, main body of base; 82, foot;

Detailed ways

Below, the utility model will be further described in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, on the premise of not conflicting, the various embodiments or technical features described below can be combined arbitrarily to form new implementations. example.

The utility model discloses a tennis training device, through which a trainer can perform single-player batting training, without needing other training personnel to cooperate with serving and pick up the ball.

Referring to Fig. 1-Fig. 3, this tennis trainer comprises:

The central support 10 includes a support outer tube 11 and a support inner tube 12 , and several first T-shaped slots 111 for height adjustment are arranged on both sides of the support outer tube 11 . The cross bar 20, wherein the cross bar 20 is a round bar, referring to Fig. 4, one end of the cross bar 20 is provided with a square sheet-shaped clip 21, which is clamped in the first T-shaped slot 111 by the clip 21, namely The cross bar 20 can be plugged on the bracket outer tube 11 . Refer to FIG. 3 for the swing base 40 , the swing base 40 has an L-like structure and is rotatably mounted on the other end of the cross bar 20 . The torsion spring assembly 30, referring to Fig. 3, the torsion spring assembly 30 is built in the cross bar 20, and the two ends are respectively connected with the swing seat 40 and the cross bar 20; when the swing seat 40 rotates around the central axis of the cross bar 20, due to the With the rebound force of the spring assembly 30, the swing seat 40 can realize rebound reset. Swing arm 50, swing arm 50 is PA material, is used to install simulation tennis 70, and swing arm 50 is arranged on the swing seat 40 and is vertical with cross bar 20; Simulate tennis ball 70, and simulation tennis 70 is installed on the swing arm 50, can adopt The material of ordinary training balls or other impact-resistant materials. When the athlete hits the simulated tennis ball 70, the simulated tennis ball 70, the swing arm 50, and the swing seat 40 will rotate around the central axis of the cross bar 20 together, and then be rebounded and reset by the rebound force of the torsion spring assembly 30, which can be repeated many times. The effect of hitting.

As a preferred embodiment, referring to Fig. 8, the top of the swing arm 50 is provided with a Y-shaped tennis rack 60 as a tennis mounting seat; the inner side of the opening at both ends of the Y-shaped tennis rack 60 is provided with two coaxial tennis fixing shafts 61 , the simulated tennis ball 70 is provided with corresponding openings, and is movably socketed on the tennis ball fixing shaft 61 . In this way, while the simulated tennis ball 70 is installed on the Y-shaped tennis rack 60, it can rotate 360 degrees around the tennis ball fixed axis 61, which can simulate to the greatest extent when athletes are performing technical actions such as chopping and backspin. The self-spin created by the tennis ball.

As a preferred embodiment, referring to FIG. 6 , a limiting piece 22 is fixedly arranged on the cross bar 20 , and one end of the limiting piece 22 is pressed against the side of the swing seat 40 . When the dynamics of hitting the tennis ball is relatively high, the rebound force received by the swing arm 50 is relatively large, so that the reset stroke becomes larger, causing the tennis ball to fail to return to its original position quickly; Still continue to produce back and forth small concussion afterwards, make the athlete can't grasp the position of tennis better. The oscillating seat 40 is tightened and limited by the limiting sheet 22, so that the oscillating seat 40 can be accurately reset to the initial position every time, and at the same time, the back and forth vibration is reduced, so that the athlete can hit from the same position every time Tennis, the training effect is more smooth.

As a preferred embodiment, referring to Fig. 3, the side of the bracket outer tube 11 is provided with a plurality of first T-shaped slots 111 with different heights, and the first T-shaped slots 111 are equidistant in the vertical direction. Arranged uniformly, in this embodiment, five first T-shaped slots 111 are preferably arranged in the same row, that is, five height gears are installed on the cross bar 20 . The height of the simulated tennis ball 70 can be adjusted by inserting the crossbar 20 into the first T-shaped slot 111 at different heights; in addition, when the crossbar 20 is inserted, the swing arm can also be selected to The direction of the 50 is up or down, which further expands the height adjustment range of the tennis ball, so that the tennis trainer can adapt to more training crowds of different heights, and can adapt to a variety of technical movements with different hitting heights.

As a preferred embodiment, referring to Fig. 1 and Fig. 9, the swing arm 50 is hinged on the swing seat 40 by screws and fixed by a buckle pin, and the direction of the hinged rotation axis is the radial direction of the cross bar 20, so that The swing arm 50 is switched between two positions perpendicular to or parallel to the cross bar 20 . Through this embodiment, the swing arm 50 can be folded, that is, the swing arm 50 is perpendicular to the cross bar 20 in the unfolded state, and parallel to the cross bar 20 in the folded state.

As a preferred embodiment, referring to Fig. 3 and Fig. 5, the bracket inner tube 12 is sleeved inside the bracket outer tube 11; the bracket inner tube 12 is provided with a plurality of equidistant height adjustment holes 121, and the bracket outer tube 11 A spring buckle seat 13 and a buckle seat hole 112 are arranged on the top, and the spring buckle seat 13 is clamped in the height adjustment hole 121 and the buckle seat hole 112, so that the bracket inner tube 12 and the bracket outer tube 11 are fixed. The height of the central support 10 can be adjusted by aligning the height adjustment holes 121 of different heights of the inner tube 12 of the bracket with the buckle hole 112 and clamping and fixing the two holes with the spring buckle 13 . In this embodiment, there are preferably nine height adjustment holes 121 , that is, the center support 10 has nine height positions.

As a preferred embodiment, referring to Fig. 7, the bracket outer tube 11 also includes a top end cover 113; the top end cover 113 is fixedly covered on the top of the bracket outer tube 11, and the bottom of the top end cover 113 is provided with a second T-shaped slot 114 . Referring to Fig. 10, when the tennis trainer needs to be folded, the cross bar 20 is removed from the bracket outer tube 11, and then clamped in the second T-shaped slot 114 through the clip 21 of the cross bar 20, that is, The cross bar 20 can be folded and closed.

As a preferred embodiment, referring to FIG. 3 , the tennis trainer further includes a base 80 fixed on the bottom of the central support 10 . The base 80 includes a base body 81 , feet 82 and anti-slip pads 83 , the feet 82 are circumferentially disposed on the base body 81 , and the angle between the feet 82 and the center support 10 is 100 degrees, which is a preferred support angle. The anti-skid pad 83 is fixed on the bottom of the foot 82 to enhance the friction between the foot 82 and the ground, so that the stability of the base 80 is stronger.

Further, referring to FIG. 10 , the feet 82 are hinged on the base body 81 through screws, so that the feet 82 can be switched between unfolded and folded states. When the feet 82 and the center support 10 are rotated to be parallel to the center support 10 , the feet 82 are in a folded state.

The working principle of the tennis training device will be described in detail below: First, the base 82 is unfolded to make the base 80 stand on the ground stably, the cross bar 20 is inserted into the first T-shaped card slot 111 of an appropriate height, and the bracket outside The tube 11 is adjusted to a suitable height; the athlete hits the simulated tennis ball 70, and the simulated tennis ball 70, the swing arm 50, and the swing seat 40 rotate around the central axis of the cross bar 20 together, and then are rebounded and reset by the rebound force of the torsion spring assembly 30 , the limit sheet 22 resets the return limit to it, and the athletes can carry out repeatedly hitting training.

The folding process of the tennis trainer is described in detail below: referring to Fig. 9-Fig. The swing arm 50 is removed from the bracket outer tube 11 together, and the two cross bars 20 are engaged on the second T-shaped slot 114 through the engaging parts 21 of the cross bar 20; the spring buckle seat 13 is loosened, and the bracket outer tube The height of 11 is adjusted to the minimum, so that it is fully fitted with the support inner tube 12 and fixed with the spring buckle seat 13; the foot 82 is rotated around the base 80, so that the foot 82 is parallel to the center support 10. So far, the entire process of the tennis trainer is completed; otherwise, it is the unfolding process of the tennis trainer.

Through the detailed elaboration of the above-mentioned embodiment, it can be understood that the utility model can allow the trainer to repeatedly hit the same tennis ball repeatedly in a short period of time, without the need for other trainers to cooperate with serving and picking up the ball, which saves a lot of time and effort. Physical strength; and the tennis ball resets to the same position each time, the trainer does not need to move repeatedly to hit; the height of the tennis ball can be adjusted, so that the tennis trainer can adapt to users of different heights, and can be used for various hitting heights The technical movements are trained, which expands the scope of training and enhances the training effect. In addition, the tennis trainer can be folded greatly, and the folded volume is small, which is easy to carry and use, so that the trainer can practice in various places such as offices, family living rooms, parks, etc. anytime and anywhere, which is very convenient to use.

The above-mentioned embodiments are only preferred embodiments of the present utility model, and cannot be used to limit the scope of protection of the present utility model. The scope of protection required by the utility model.

Claims (9)

1. A tennis trainer, characterized in that, said tennis trainer comprises a central support, a cross bar, a torsion spring assembly, a swing seat, a swing arm and a simulated tennis ball; said central support comprises a support outer tube, and said support outer tube A first T-shaped card slot is provided on the side of the tube; a clip is provided at one end of the cross bar, and the cross bar is fixedly plugged in through the cooperation of the clip and the first T-shaped clip slot. On the outer tube of the bracket; the swing seat is rotatably mounted on the other end of the cross bar; the two ends of the torsion spring assembly are respectively connected with the swing seat and the cross bar; the swing arm is arranged on the The swing base is perpendicular to the cross bar; the simulated tennis ball is fixed on the swing arm. 2. tennis trainer as claimed in claim 1, is characterized in that, the top of described swing arm is also provided with Y-shaped tennis frame; The two ends of described Y-shaped tennis frame are provided with two coaxial tennis fixed shafts, The simulated tennis activity is socketed on the fixed shaft of the tennis ball. 3 . The tennis trainer according to claim 1 , wherein a limiting piece is fixedly arranged on the cross bar, and one end of the limiting piece is pressed against the side of the swing seat. 4 . 4. The tennis trainer as claimed in claim 1, wherein the swing arm is hinged on the swing seat, and the direction of its rotation axis is the radial direction of the cross bar, so that the swing arm Toggle between two positions that fit perpendicular or parallel to the bar. 5. The tennis trainer as claimed in claim 1, characterized in that, the side of the outer tube of the bracket is provided with a plurality of first T-shaped slots with different heights, between the first T-shaped slots vertically Arranged evenly and equidistantly in the direction. 6. The tennis trainer as claimed in claim 1, wherein the central bracket also includes a bracket inner tube, and the bracket inner tube is sleeved inside the bracket outer tube; the bracket inner tube is provided with There are a plurality of equidistant height adjustment holes, and the outer tube of the bracket is provided with a spring buckle seat and a buckle seat hole, and the spring buckle seat is fastened in the height adjustment hole and the buckle seat hole, so that all The inner tube of the stent and the outer tube of the stent are fixed. 7. The tennis trainer as claimed in claim 1, characterized in that, the outer tube of the bracket also includes a top end cap; the fixed cover of the top end cap is arranged on the top of the outer tube of the bracket, and the bottom of the top end cap is arranged There is a second T-shaped card slot. 8. The tennis training device according to claim 1, characterized in that, the tennis training device also includes a base, and the base is fixed on the bottom of the center support; the base includes a base body, feet and anti-skid A spacer, the feet are circumferentially arranged on the main body of the base, and the anti-skid spacer is fixed on the bottom of the feet. 9 . The tennis trainer according to claim 8 , wherein the feet are hinged on the base body so that the feet can be switched between unfolded and folded states. 10 .