CN214232699U

CN214232699U - Tennis training assistor

Info

Publication number: CN214232699U
Application number: CN202120095118.2U
Authority: CN
Inventors: 胡煜豪
Original assignee: Changsha Normal University
Current assignee: Changsha Normal University
Priority date: 2021-01-14
Filing date: 2021-01-14
Publication date: 2021-09-21
Anticipated expiration: 2031-01-14

Abstract

The utility model discloses a tennis training assistor, hold including service end, intervalve and material loading, bolt fixedly connected with driving motor is served to the service, the vertical central line position below of intervalve rotates and is connected with the driving lever, and fixedly connected with and the connecting rod that the driving lever is located same straight line in the top pivot of driving lever, connecting rod one side is provided with rotates the third toothed disc who is connected with the intervalve, and fixedly connected with cunning inlays in the inboard round pin axle of connecting rod on the vertical terminal surface of third toothed disc, the transmission is connected between third toothed disc and the driving motor. The utility model discloses in, rotate through driving motor transmission third toothed disc, when the round pin axle on the third toothed disc slides from top to bottom in the inside of connecting rod for the connecting rod interlock is located the inside driving lever left and right sides rotation of service end, thereby realizes to the hitting effect about dropping the tennis by the top, with the position that the tennis propelling movement is different to the service end, obtains the service position of bigger scope.

Description

Tennis training assistor

Technical Field

The utility model relates to a tennis training assistor.

Background

Tennis ball, one of ball games. The effective tennis court is a rectangle, the length of the tennis court is 23.77 meters, the width of the single play court is 8.23 meters, and the width of the double play court is 10.97 meters. The middle is separated by a net, both sides of the game respectively occupy one side of the court, and the players hit the ball with a tennis racket.

The existing tennis training device is only provided with one ball outlet, and the change of the ball direction is realized through the change of the pipeline direction, but the ball serving mode has single ball serving position and smaller change range of the ball path, which is not beneficial to the technical improvement of trainers.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a tennis training assistor has solved current tennis trainer service position singleness, the not good problem of training effect.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a tennis training assistor, includes the service end, service end intermediate position top fixedly connected with rather than the intervalve of intercommunication, and the top fixedly connected with material loading end of intervalve, bolt fixedly connected with driving motor on the service end, the vertical central line position below of intervalve rotates and is connected with the driving lever, and fixedly connected with and the connecting rod that the driving lever is located same straight line in the pivot of top of driving lever, connecting rod one side is provided with rotates the third toothed disc who is connected with the intervalve, and fixedly connected with cunning inlays in the inboard round pin axle of connecting rod on the vertical terminal surface of third toothed disc, the transmission is connected between third toothed disc and the driving motor.

As a further description of the above technical solution:

two second gear discs are sleeved on an output shaft of the driving motor, and one of the two second gear discs is in meshing transmission connection with the third gear disc through a synchronous belt.

As a further description of the above technical solution:

the central symmetry is put to the middle section of well pipe and is provided with two delivery wheels, and the horizontal both sides of overlooking the face of two delivery wheels all are the arc structure to two delivery wheel one sides all overlap and are equipped with first toothed disc, two meshing transmission is connected between the first toothed disc.

As a further description of the above technical solution:

one side of the middle shaft of one of the two conveying wheels, which is far away from the first gear disc, is sleeved with a second gear disc, and the second gear disc is in transmission connection with a second gear disc on the output shaft of the driving motor through synchronous belt meshing.

As a further description of the above technical solution:

the connecting rod is provided with a straight notch, the pin shaft is fixedly connected to the position, deviating from the center of a circle, of the third gear disc, and the swinging range of the connecting rod is +/-60 degrees.

As a further description of the above technical solution:

the bottom of service end is equidistant to be provided with a plurality of electric putter, and a plurality of electric putter's below all is provided with and serves end wall fixed connection's the board of accepting, be provided with the baffle between two adjacent in a plurality of electric putter, and the baffle highly descends in proper order to both sides by the centre.

The utility model discloses possess following beneficial effect at least:

1. the utility model discloses in, rotate through driving motor transmission third toothed disc, when the round pin axle on the third toothed disc slides from top to bottom in the inside of connecting rod for the connecting rod interlock is located the inside driving lever left and right sides rotation of service end, thereby realizes to the hitting effect about dropping the tennis by the top, with the position that the tennis propelling movement is different to the service end, obtains the service position of bigger scope.

2. The utility model discloses in, rotate through driving motor transmission second gear wheel dish, the coaxial delivery wheel of second gear wheel dish transmission rotates, through first gear wheel dish effect between two delivery wheels, realizes the rotation of opposite direction to the realization is to the synchronous underdrive of tennis, because the interval is less between two delivery wheels, when it does not rotate, carries out the separation to the top tennis, realizes sending one by one of tennis, through the rotational speed of adjusting driving motor, realizes the regulation to serving quantity in the unit interval.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without any creative effort.

Fig. 1 shows a front view provided in accordance with the present invention;

fig. 2 shows an internal structural view provided in accordance with the present invention;

fig. 3 shows a top view of the intermediate pipe according to the present invention;

fig. 4 shows a cross-sectional structure diagram at a according to the present invention.

In the figure: 1. a ball-serving end; 2. a feeding end; 3. an intermediate pipe; 4. a delivery wheel; 5. a first gear plate; 6. a drive motor; 7. a second gear wheel disc; 8. a synchronous belt; 9. a third gear plate; 10. a connecting rod; 11. a deflector rod; 12. a pin shaft; 13. a partition plate; 14. an electric push rod; 15. a bearing plate.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1-4, a tennis training aid comprises a pitching end 1, a middle tube 3 connected with the pitching end 1 is fixedly connected above the middle position of the pitching end 1, a feeding end 2 is fixedly connected above the middle tube 3, a driving motor 6 is fixedly connected with the pitching end 1 through a bolt, a shifting lever 11 is rotatably connected below the vertical center line of the middle tube 3, a connecting rod 10 which is positioned on the same straight line with the shifting lever 11 is fixedly connected on a rotating shaft at the top end of the shifting lever 11, a third gear disc 9 rotatably connected with the middle tube 3 is arranged on one side of the connecting rod 10, a pin shaft 12 which is slidably embedded on the inner side of the connecting rod 10 is fixedly connected on the vertical end surface of the third gear disc 9, a straight notch is arranged on the connecting rod 10, the pin shaft 12 is fixedly connected to the position of the third gear disc 9 which deviates from the center of the circle, the swinging range of the connecting rod 10 is +/-60 degrees, and the third gear disc 9 is in transmission connection with the driving motor 6, when the third gear plate 9 rotates, the pin 12 slides up and down in the straight slot of the connecting rod 10, and the connecting rod 10 is linked to reciprocate left and right, so that tennis balls are thrown out in different left and right directions.

Specifically, as shown in fig. 1, two second gear discs 7 are sleeved on an output shaft of the driving motor 6, and one of the two second gear discs 7 is in meshing transmission connection with a third gear disc 9 through a synchronous belt 8, so that the driving motor 6 controls the third gear disc 9 to rotate.

Specifically, as shown in fig. 1-3, two conveying wheels 4 are centrally and symmetrically arranged at the middle section of the middle tube 3, and both sides of the top horizontal surface of the two conveying wheels 4 are arc-shaped, the distance between the two conveying wheels 4 is smaller than the diameter of a tennis ball, so as to ensure the blocking of the tennis ball, and meanwhile, when the conveying wheels 4 rotate, the conveying wheels 4 have certain extrusion force on the tennis ball, so that the tennis ball has certain acceleration, and the movement inside the ball-serving end 1 is better realized, and one side of each of the two conveying wheels 4 is sleeved with a first gear disc 5, the two first gear discs 5 are in meshing transmission connection, one side of the middle shaft of one of the two conveying wheels 4, which is far away from the first gear disc 5, is sleeved with a second gear disc 7, and the second gear disc 7 on the output shaft of the driving motor 6 is in meshing transmission connection through a synchronous belt 8, so that the tennis ball falls in the middle tube 3 under the electromagnetic control, when the tennis ball is thrown towards the deflector rod 11, the deflector rod 11 still rotates, and the ball throwing effect of the deflector rod 11 is ensured.

Specifically, as shown in fig. 2, a plurality of electric push rods 14 are arranged at equal intervals at the bottom end of the serve end 1, the electric push rods 14 have instantaneous acceleration, so as to ensure the ball speed when the tennis ball is pushed out of the serve end 1, receiving plates 15 fixedly connected with the end walls of the serve end 1 are arranged below the electric push rods 14, partition plates 13 are arranged between two adjacent electric push rods 14, and the heights of the partition plates 13 are gradually decreased from the middle to the two sides, so that the tennis ball can smoothly enter the different receiving plates 15.

The working principle is as follows: tennis balls are poured into the feeding end 2, the tennis balls in the feeding end 2 sequentially enter the middle pipe 3, the driving motor 6 is started to rotate at the moment, the driving motor 6 drives the conveying wheels 4 through the action of the second gear wheel disc 7 and the synchronous belt 8, the two conveying wheels 4 synchronously rotate downwards through the action of the first gear disc 5, the tennis balls are further pushed downwards, one tennis ball is driven downwards at a time through the action of the conveying wheels 4, the ball serving speed can be adjusted by controlling the rotating speed of the driving motor 6, the driving motor 6 rotates and drives the third gear disc 9, when the third gear disc 9 rotates, the pin shaft 12 at the vertical end of the third gear disc moves in the chute of the connecting rod 10, so that the connecting rod 10 swings left and right, the deflector rod 11 swings left and right in a reciprocating mode inside the ball serving end 1, and the tennis balls falling from the middle pipe 3 are hit, the tennis ball enters different partition plates 13, so that different serving positions are realized; when the tennis ball enters between the two partition boards 13, the tennis ball rolls to the top end of the electric push rod 14, and at the moment, the electric push rod 14 extends to push the tennis ball out of the bearing board 15, so that the service operation is completed.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the principles of the present invention may be applied to any other embodiment without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. An auxiliary device for tennis training comprises a ball serving end (1), a middle pipe (3) communicated with the ball serving end (1) is fixedly connected above the middle position of the ball serving end, a feeding end (2) is fixedly connected above the middle pipe (3), it is characterized in that the driving motor (6) is fixedly connected with the pitching end (1) through a bolt, a deflector rod (11) is rotatably connected below the vertical center line of the middle pipe (3), a connecting rod (10) which is positioned on the same straight line with the deflector rod (11) is fixedly connected on a rotating shaft at the top end of the deflector rod (11), a third gear plate (9) which is rotationally connected with the middle pipe (3) is arranged on one side of the connecting rod (10), and a pin shaft (12) which is slidably embedded in the inner side of the connecting rod (10) is fixedly connected on the vertical end surface of the third gear disc (9), the third gear disc (9) is in transmission connection with the driving motor (6).

2. The tennis training aid of claim 1, wherein two second gear discs (7) are sleeved on the output shaft of the driving motor (6), and one of the two second gear discs (7) is in meshing transmission connection with the third gear disc (9) through a synchronous belt (8).

3. The tennis training aid of claim 1, wherein two conveying wheels (4) are arranged in the middle of the middle tube (3) in a central symmetry manner, the two conveying wheels (4) are arc-shaped on two horizontal sides of the top surface, and a first gear disc (5) is sleeved on one side of each conveying wheel (4), and the two first gear discs (5) are in meshing transmission connection.

4. A tennis training aid as claimed in claim 3, characterized in that the side of the intermediate shaft of one of the two delivery wheels (4) remote from the first gear wheel (5) is sleeved with a second gear wheel disc (7), and the second gear wheel disc (7) is in meshing transmission connection with the second gear wheel disc (7) on the output shaft of the driving motor (6) through a synchronous belt (8).

5. An aid for training tennis as claimed in claim 1, wherein the connecting rod (10) is provided with a notch, the pin (12) is fixedly connected to the third gear wheel (9) at a position offset from the center of the circle, and the swinging range of the connecting rod (10) is ± 60 °.

6. The tennis training aid of claim 1, wherein a plurality of electric push rods (14) are arranged at equal intervals at the bottom end of the service end (1), a bearing plate (15) fixedly connected with the end wall of the service end (1) is arranged below each electric push rod (14), a partition plate (13) is arranged between two adjacent electric push rods (14), and the heights of the partition plates (13) are gradually reduced from the middle to two sides.