CN109260688B

CN109260688B - Special tennis of tennis training promotes service device

Info

Publication number: CN109260688B
Application number: CN201811282013.7A
Authority: CN
Inventors: 方标; 许萌; 柯军梁
Original assignee: Shangyu Research Institute of ZJUT
Current assignee: Shangyu Research Institute of ZJUT
Priority date: 2018-10-31
Filing date: 2018-10-31
Publication date: 2020-06-23
Anticipated expiration: 2038-10-31
Also published as: CN109260688A

Abstract

The invention provides a tennis pushing service device special for tennis training, and relates to the technical field of tennis training. This special tennis of tennis training promotes service device, including the device main part, the inside of device main part has from last down set gradually puts ball groove and service room, the bottom fixed mounting of device main part has unable adjustment base, unable adjustment base keeps away from the one end fixedly connected with universal wheel of device main part bottom, the top of device main part and be located one side of putting the ball groove and seted up the pull rod groove. This special tennis of tennis training promotes service device, through the second and rotates the disc, the fixed cylinder of second, lead to the groove, the movable rod, fixed rotating shaft, agree with the tooth, the joint setting of catch bar and fixed sliding opening, it is rotatory to make the device can drive the fixed cylinder of second through the second rotation disc in the promotion in-process, the fixed cylinder of second removes in leading to the inslot and can make the circular arc piece swing, the effect that agrees with the tooth through the catch bar surface makes the catch bar round trip movement in fixed sliding opening.

Description

Special tennis of tennis training promotes service device

Technical Field

The invention relates to the technical field of tennis training, in particular to a tennis pushing service device special for tennis training.

Background

In tennis training, a coach feeds balls continuously, a sportsman returns balls continuously is the most common method in tennis training, the method not only consumes a large amount of physical power of the coach, but also cannot track ball speed and ball movement tracks, scientific judgment on accuracy and stability of service is difficult to make, a tennis ball serving machine as a training auxiliary device can serve the balls to the sportsman continuously, stably and accurately to achieve the purposes of scientific and accurate training, the service principle of the tennis ball serving machine in the prior art is friction wheel service, the friction wheel service machine adopts the principle of double-wheel reverse rotation extrusion friction ball serving, and the problems exist that the service machine transmission device is complex, the swing of a service platform in the horizontal direction and the elevation angle of a service platform in the vertical direction are difficult to adjust, and meanwhile, the friction wheels work continuously in service interval time, the whole efficiency is low, the friction serve can wear the surface of the tennis ball, the damage to the surface of the tennis ball can be caused after long-time use, resources are wasted, a ball conveying port arranged at the top of the conventional serve device is easy to block, manual arrangement is needed once the ball conveying port is blocked, the time of a user is wasted, the conventional serve device is not provided with a moving or fixing device, and the moving process is troublesome, so that the problem is solved by providing the tennis ball pushing serve device special for tennis training.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a special tennis ball pushing service device for tennis training, which solves the problems that the service device is abraded due to friction service, a ball conveying port at the top of the service device is easy to block, and the service device is relatively troublesome to move and fix.

Technical scheme

In order to achieve the purpose, the invention is realized by the following technical scheme: a tennis ball pushing and serving device special for tennis training comprises a device main body, wherein a ball placing groove and a ball serving chamber are sequentially arranged in the device main body from top to bottom, a fixed base is fixedly arranged at the bottom of the device main body, one end, far away from the bottom of the device main body, of the fixed base is fixedly connected with a universal wheel, a pull rod groove is formed in the top of the device main body and located on one side of the ball placing groove, a pull rod is placed in the pull rod groove, a pull rod sliding groove is formed in one side of the inner wall of the pull rod groove, a pull rod sliding block is fixedly arranged in one side of the bottom of the pull rod and located in the pull rod sliding groove, a rotating groove is formed in the inner wall of the top of the ball placing groove, a first rotating disc is rotatably connected in the rotating groove through a rotating shaft, a first fixed cylinder is fixedly arranged on one side, close to the bottom of the, the ball discharging device is characterized in that a motor rotating shaft is fixedly connected to one end, far away from the inner wall of the bottom of the ball discharging chamber, of the motor, a connecting rod is fixedly connected to one side, far away from the motor, of the motor rotating shaft, a rotating ring is fixedly connected to two ends of the connecting rod, a poking rod is fixedly connected to the center of the connecting rod, a ball conveying pipeline penetrating through the device body is arranged on the inner wall of the bottom of the ball discharging chamber, a ball dropping opening is fixedly connected to one end, far away from the ball discharging groove, of the ball conveying pipeline, a ball discharging opening is fixedly connected to one side of the ball dropping opening, a first fixing plate is fixedly mounted on the inner wall, far away from the ball discharging opening, of the ball discharging chamber, a fixed sliding opening is fixedly mounted at the bottom of the first fixing plate, a pushing rod is placed inside the fixed sliding opening, a second fixing plate is fixedly mounted below the first fixing plate on the inner wall of, the surface of the motor gear is fixedly connected with a first gear fixed on one side of a second fixed plate through a chain, the surface of the motor gear and one side of the first gear are fixedly connected with a second gear fixed on one side of the second fixed plate through a chain, the surface of the second gear is fixedly connected with a third gear fixed on one side of the second fixed plate, a fixed block is fixedly arranged on the inner wall of the bottom of the ball chamber and one side of the motor, the surface of the first gear is fixedly connected with a disc gear fixedly connected to the top of the fixed block through a chain, one end of the disc gear far away from the fixed block is fixedly connected with a second rotating disc, one side of the second rotating disc far away from the disc gear is fixedly provided with a second fixed cylinder, one side of the second rotating disc far away from the disc gear is provided with a movable rod, and the inside of the movable rod is provided with a through, the movable rod is far away from one end of the second fixed cylinder and is fixedly connected with an arc block, and the joint of the movable rod and the arc block is fixedly connected to the surface of the fixed block through a fixed rotating shaft.

Furthermore, the number of the first fixed cylinders is eight, and the first fixed cylinders are circularly distributed on the first rotating disc.

Furthermore, the rotating ring and the first rotating disc are the same in size, a forty-five-degree notch is formed in the surface of the rotating ring, one end of the poke rod is located at one end of the notch, and the poke rod is perpendicular to the connecting rod.

Furthermore, the first gear, the second gear and the third gear are the same in size, and the first gear and the second gear are in transmission connection through a motor gear.

Furthermore, there are two second rotating disks, and the second rotating disks are respectively distributed on two sides of the push rod.

Furthermore, the second fixed cylinder is located at one end of the through groove, and the length of the through groove is twice as long as the length from the center point of the second fixed cylinder to the center of the second rotating disc.

Furthermore, the surface of one side of the arc block, which is far away from the movable rod, is provided with a fit tooth, and the fit tooth, which is far away from the surface of the movable rod, of the arc block is fit with the fit tooth on the surface of the push rod.

Furthermore, the universal wheel and the pull rod are positioned on the same vertical line, and the universal wheel and the pull rod are positioned on one side of the device main body.

Furthermore, the surface of the motor rotating shaft is sequentially provided with a connecting rod and a motor gear from top to bottom.

Furthermore, the diameter of a pipeline opening below the ball falling opening and close to one side of the push rod is smaller than that of the tennis ball, and the ball outlet is an oblique angle outlet.

Advantageous effects

Compared with the prior art, the method has the advantages that,

1. this special tennis of tennis training promotes service device, through the second rotation disc, the fixed cylinder of second, lead to the groove, the movable rod, fixed rotating shaft, agree with the tooth, the joint setting of catch bar and fixed sliding opening, it is rotatory to make the device can rotate the fixed cylinder of second through the second rotation disc drive in the promotion process, the fixed cylinder of second removes in leading to the inslot and can make the circular arc piece swing, the effect that agrees with the tooth through the catch bar surface makes the catch bar round trip movement in fixed sliding opening, the different catch bars of removal angle provide power at the inside gliding acceleration difference of fixed sliding opening, abrasion has been reduced.

2. According to the tennis ball pushing and serving device special for tennis training, the motor rotating shaft, the motor gear, the first gear, the second gear, the third gear and the connecting rod are jointly arranged, so that the device drives the push rod to work through the transmission of the gears in the process of driving the push rod by the motor, the two sides of the push rod are provided with pushing power, the performance of the device is improved, and resources are saved.

3. According to the tennis ball pushing and serving device special for tennis training, the rotating ring, the poking rod, the connecting rod, the rotating groove, the first rotating disc and the first fixing cylinder are jointly arranged, so that the device drives the rotating disc to rotate when a motor is in work, the poking rod in the rotating disc rotates a circle to poke the first fixing cylinder to rotate for a certain distance, tennis balls in the ball placing groove are moved, and blocking of an inlet of the tennis balls is avoided.

4. The tennis pushing service device special for tennis training is characterized in that the tennis pushing service device is arranged in the tennis conveying pipeline in the process of launching the tennis through the joint arrangement of the tennis conveying pipeline, the tennis drop opening and the tennis outlet, the pushing rod launches the tennis out of the tennis outlet continuously at the tennis drop opening, the tennis loading time is saved, and meanwhile, the tennis is prevented from being clamped at the tennis outlet.

5. This special tennis of tennis training promotes service device through the joint setting of pull rod, pull rod groove, pull rod spout, unable adjustment base and universal wheel, makes the device can use through the cooperation of pull rod and universal wheel on the way of removing to reach the effect of removal, has avoided the physical waste of transport, makes because the universal wheel has only set up in one side in the use, also can reach fixed effect, is convenient for remove and fixed, provides a good training environment for the user.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged view of the present invention at A;

FIG. 3 is a bottom view of the push rod of the present invention;

fig. 4 is a bottom view of the first rotatable disk of the present invention.

In the figure: the device comprises a device body 1, a fixed base 2, a universal wheel 3, a ball placing groove 4, a ball serving chamber 5, a pull rod groove 6, a pull rod 7, a pull rod sliding groove 8, a pull rod sliding block 9, a first rotating disc 10, a rotating groove 11, a first fixed cylinder 12, a rotating ring 13, a connecting rod 14, a poking rod 15, a motor rotating shaft 16, a ball conveying pipeline 17, a ball dropping port 18, a ball discharging port 19, a first fixed plate 20, a second fixed plate 21, a first gear 22, a motor gear 23, a motor gear 24, a fixed block 25, a second gear 26, a third gear 27, a fixed sliding port 28, a pushing rod 29, a meshing tooth 30, a second rotating disc 31, a second fixed cylinder 32, a through groove 33, a movable rod 34, a fixed rotating shaft 35, a circular arc block 36 and a circular disk gear 38.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1-4, an embodiment of the present invention provides a tennis ball pushing service device for tennis training, including a device main body 1, a ball placing groove 4 and a service room 5 are sequentially disposed in the device main body 1 from top to bottom, a fixing base 2 is fixedly mounted at the bottom of the device main body 1, a universal wheel 3 is fixedly connected to one end of the fixing base 2 away from the bottom of the device main body 1, a pull rod groove 6 is disposed at one side of the ball placing groove 4 at the top of the device main body 1, a pull rod 7 is disposed in the pull rod groove 6, a pull rod chute 8 is disposed at one side of the inner wall of the pull rod groove 6, a pull rod slider 9 is fixedly mounted at one side of the bottom of the pull rod 7 and in the pull rod chute 8, a rotating groove 11 is disposed at the inner wall of the top of the ball placing groove 4, the universal wheel 3 and the pull rod 7 are on the same vertical, the interior of the rotating groove 11 is rotatably connected with a first rotating disc 10 through a rotating shaft, eight first fixed cylinders 12 are provided, the first fixed cylinders 12 are circularly distributed on the first rotating disc 10, one side of the first rotating disc 10 close to the bottom of the rotating groove 11 is fixedly provided with the first fixed cylinders 12, the inner wall of the bottom of the ball-emitting chamber 5 is fixedly provided with a motor 24, one end of the motor 24 far away from the inner wall of the bottom of the ball-emitting chamber 5 is fixedly connected with a motor rotating shaft 16, one side of the motor rotating shaft 16 far away from the motor 24 and positioned on the first rotating disc 10 is fixedly connected with a connecting rod 14, the surface of the motor rotating shaft 16 is sequentially provided with a connecting rod 14 and a motor gear 23 from top to bottom, two ends of the connecting rod 14 are fixedly connected with rotating rings 13, the center of the connecting rod 14 is fixedly connected with a poking rod 15, the rotating rings 13 have the same size as the first rotating disc 10, one end of a poke rod 15 is positioned at one end of the gap, the poke rod 15 is perpendicular to the connecting rod 14, a ball conveying pipeline 17 penetrating through the device main body 1 is arranged on the inner wall of the bottom of the ball placing groove 4, one end of the ball conveying pipeline 17 far away from the ball placing groove 4 is fixedly connected with a ball falling port 18, one side of the ball falling port 18 is fixedly connected with a ball outlet 19, the diameter of a pipeline port below the ball falling port 18 and close to one side of a push rod 29 is smaller than that of a tennis ball, the ball outlet 19 is an oblique angle outlet ball serving chamber 5, the inner wall of the ball outlet 19 far away from the ball outlet 19 is fixedly provided with a first fixing plate 20, the bottom of the first fixing plate 20 is fixedly provided with a fixed sliding port 28, the push rod 29 is placed inside the fixed sliding port 28, a second fixing plate 21 is fixedly arranged on the inner wall of the ball serving chamber 5 and below the first fixing plate 20, a motor gear 23 is fixedly arranged on the surface of a motor rotating shaft 16 and on one side of a 22, a second gear 26 fixed on one side of the second fixing plate 21 is movably connected to one side of the first gear 22 on the surface of the motor gear 23 through a chain, the first gear 22, the second gear 26 and the third gear 27 are the same in size, the first gear 22 and the second gear 26 are in transmission connection through the motor gear 23, the third gear 27 fixed on one side of the second fixing plate 21 is movably connected to the surface of the second gear 26, a fixing block 25 is fixedly installed on one side of the inner wall of the bottom of the ball-emitting chamber 5 located on the motor 24, a disc gear 38 fixedly connected to the top of the fixing block 25 is movably connected to the surface of the first gear 22 through a chain, a second rotating disc 31 is fixedly connected to one end of the disc gear 38 far away from the fixing block 25, a second fixing cylinder 32 is fixedly installed on one side of the second rotating disc 31 far away from the disc gear 38, two second rotating discs 31 are provided, and the second rotating discs 31 are respectively distributed on two sides of, the movable rod 34 has been placed to one side that disc gear 38 was kept away from to second rotating disc 31, logical groove 33 that contains the fixed cylinder 32 of second is seted up to the inside of movable rod 34, the fixed cylinder 32 of second is located the one end of logical groove 33, and the length that leads to groove 33 is the twice of the fixed cylinder 32 central point of second to second rotating disc 31 centre of a circle length, the one end fixedly connected with circular arc piece 36 that second fixed cylinder 32 was kept away from to movable rod 34 is kept away from to movable rod 34, a side surface that circular arc piece 36 kept away from movable rod 34 is provided with the agreeing with tooth, the agreeing with tooth that agrees with on tooth and catch bar 29 surface mutually of circular arc piece 36 kept away from movable rod 34 surface, movable rod 34 passes through fixed rotating shaft 35 fixed connection in the surface of fixed block 25 with.

The working principle is as follows: when the tennis ball ejecting device is used, the motor 24 is started, the motor 24 drives the motor rotating shaft 16 and the motor gear 23 to rotate, the rotating ring 13 outside the connecting rod 14 starts to stir the first rotating disc 10 to rotate, tennis balls in the ball placing groove 4 enter the ball dropping opening 18 through the ball conveying pipeline 17, meanwhile, the second rotating disc 31 rotates to drive the second fixing cylinder 32 to move in the through groove 33, the push rod 29 is driven to rapidly push to one side in the fixing sliding opening 28 through transmission, the tennis balls are pushed to be ejected from the ball discharging opening 19, then the second fixing cylinder 32 continues to rotate on the second rotating disc 31, and the tennis balls are moved backwards by the push rod 29 and drop from the ball dropping opening 18 to wait for next pushing.

The electrical components presented in the document are all electrically connected with an external master controller and 220V mains, and the master controller can be a conventional known device controlled by a computer or the like.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a special tennis of tennis training promotes service device, includes device main part (1), its characterized in that: the device is characterized in that a ball placing groove (4) and a ball serving chamber (5) are sequentially arranged in the device main body (1) from top to bottom, a fixed base (2) is fixedly arranged at the bottom of the device main body (1), one end, far away from the bottom of the device main body (1), of the fixed base (2) is fixedly connected with a universal wheel (3), a pull rod groove (6) is formed in the top of the device main body (1) and is positioned at one side of the ball placing groove (4), a pull rod (7) is placed in the pull rod groove (6), a pull rod sliding groove (8) is formed in one side of the inner wall of the pull rod groove (6), a pull rod sliding block (9) is fixedly arranged in one side of the bottom of the pull rod (7) and is positioned in the pull rod sliding groove (8), a rotating groove (11) is formed in the inner wall of the top of the ball placing groove (4), and a first rotating disc, a first fixing cylinder (12) is fixedly mounted on one side, close to the bottom of the rotating groove (11), of the first rotating disc (10), a motor (24) is fixedly mounted on the inner wall of the bottom of the ball serving chamber (5), one end, far away from the inner wall of the bottom of the ball serving chamber (5), of the motor (24) is fixedly connected with a motor rotating shaft (16), one side, far away from the motor (24), of the motor rotating shaft (16) and located on the first rotating disc (10) is fixedly connected with a connecting rod (14), two ends of the connecting rod (14) are fixedly connected with rotating rings (13), a poking rod (15) is fixedly connected with the center of the connecting rod (14), a ball conveying pipeline (17) penetrating through the device main body (1) is arranged on the inner wall of the bottom of the ball placing groove (4), one end, far away from the ball placing groove (4), of the ball conveying pipeline (17), one side of the ball falling port (18) is fixedly connected with a ball outlet (19), the inner wall of the ball outlet (19) far away from the ball serving chamber (5) is fixedly provided with a first fixing plate (20), the bottom of the first fixing plate (20) is fixedly provided with a fixed sliding port (28), the inside of the fixed sliding port (28) is provided with a push rod (29), the inner wall of the ball serving chamber (5) is fixedly provided with a second fixing plate (21) below the first fixing plate (20), the surface of the motor rotating shaft (16) is fixedly provided with a motor gear (23) on one side of the motor (24), the surface of the motor gear (23) is movably connected with a first gear (22) fixed on one side of the second fixing plate (21) through a chain, the surface of the motor gear (23) is fixedly provided with a second gear (26) fixed on one side of the second fixing plate (21) on one side of the first gear (22) through a chain, the surperficial swing joint of second gear (26) has third gear (27) of fixing in second fixed plate (21) one side, the inner wall of service room (5) bottom and the one side fixed mounting who is located motor (24) have fixed block (25), the surface of first gear (22) has disc gear (38) of fixed connection at fixed block (25) top through chain swing joint, disc gear (38) are kept away from the one end fixedly connected with second rotation disc (31) of fixed block (25), one side fixed mounting that disc gear (38) were kept away from in second rotation disc (31) has second stationary cylinder (32), movable rod (34) have been placed to one side that disc gear (38) were kept away from in second rotation disc (31), logical groove (33) that contain second stationary cylinder (32) are seted up to the inside of movable rod (34), the one end fixedly connected with circular arc piece (36) that second stationary cylinder (32) were kept away from in movable rod (34) The joint of the movable rod (34) and the arc block (36) is fixedly connected to the surface of the fixed block (25) through a fixed rotating shaft (35).

2. The tennis ball pushing serving device as recited in claim 1, wherein: eight first fixed cylinders (12) are arranged, and the first fixed cylinders (12) are circularly distributed on the first rotating disc (10).

3. The tennis ball pushing serving device as recited in claim 1, wherein: the rotating circular ring (13) and the first rotating disc (10) are the same in size, a forty-five-degree notch is formed in the surface of the rotating circular ring (13), one end of the poking rod (15) is located at one end of the notch, and the poking rod (15) is perpendicular to the connecting rod (14).

4. The tennis ball pushing serving device as recited in claim 1, wherein: the first gear (22), the second gear (26) and the third gear (27) are the same in size, and the first gear (22) and the second gear (26) are in transmission connection through the motor gear (23).

5. The tennis ball pushing serving device as recited in claim 1, wherein: the number of the second rotating disks (31) is two, and the second rotating disks (31) are respectively distributed on two sides of the push rod (29).

6. The tennis ball pushing serving device as recited in claim 1, wherein: the second fixed cylinder (32) is positioned at one end of the through groove (33), and the length of the through groove (33) is twice as long as the length from the center point of the second fixed cylinder (32) to the circle center of the second rotating disk (31).

7. The tennis ball pushing serving device as recited in claim 1, wherein: the surface of one side, far away from the movable rod (34), of the arc block (36) is provided with engaging teeth, and the engaging teeth, far away from the surface of the movable rod (34), of the arc block (36) are engaged with the engaging teeth on the surface of the push rod (29).

8. The tennis ball pushing serving device as recited in claim 1, wherein: the universal wheel (3) and the pull rod (7) are positioned on the same vertical line, and the universal wheel (3) and the pull rod (7) are positioned on one side of the device main body (1).

9. The tennis ball pushing serving device as recited in claim 1, wherein: the surface of the motor rotating shaft (16) is sequentially provided with a connecting rod (14) and a motor gear (23) from top to bottom.

10. The tennis ball pushing serving device as recited in claim 1, wherein: the diameter of a pipeline opening at one side of the lower part of the ball falling opening (18) close to the push rod (29) is smaller than that of a tennis ball, and the ball outlet (19) is an oblique angle outlet.