CN210728619U

CN210728619U - Tennis training auxiliary device

Info

Publication number: CN210728619U
Application number: CN201921598616.8U
Authority: CN
Inventors: 何心秋
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-09-24
Filing date: 2019-09-24
Publication date: 2020-06-12
Anticipated expiration: 2029-09-24

Abstract

The utility model provides a tennis training auxiliary device, including the base, its characterized in that: a tennis ball storage barrel and a tennis ball conveying barrel are arranged on the base, a partition plate is arranged in the tennis ball storage barrel, the tennis ball storage barrel is divided into an upper cavity and a lower cavity by the partition plate, a first ball outlet is formed in the left end of the partition plate, a first motor is arranged in the lower cavity of the tennis ball storage barrel, an output shaft of the first motor penetrates through the partition plate and extends into the upper cavity of the tennis ball storage barrel, a second ball outlet is formed in the tennis ball storage barrel, a ball outlet pipe is arranged on the second ball outlet, a ball inlet of the ball outlet pipe is connected with the first ball outlet, an outlet of the ball outlet pipe penetrates through the second ball outlet and the lower end of the outer peripheral side wall of the tennis ball conveying barrel in sequence and extends into the tennis ball conveying barrel, and a rotary rod is arranged at the tail end of the output shaft of the first motor; the utility model discloses simple structure, the simple operation, portable has improved the efficiency of tennis training.

Description

Tennis training auxiliary device

Technical Field

The utility model relates to a tennis training ware technical field, especially a tennis training auxiliary device.

Background

The tennis trainer occupies small space, can be used indoors and outdoors, and is convenient to carry. Can practice the forward and backward hands and various batting techniques. Has the effect of improving the playing level and can standardize various basic actions. However, since tennis is a sport not easy to get on hand, and has certain requirements for training fields, it is not easy to practice or train at any time, and it is often difficult for beginners to master various techniques of tennis because they are not familiar with the sphericity of tennis. With the increasing living standard of people, tennis is enjoyed and participated by more and more people in recent years. However, the existing tennis training devices in the market are expensive, complex to operate and often have faults, and the manual mode wastes manpower, and the position of the tennis training device facing the head in a manual mode cannot be determined, so that the tennis training device is inconvenient for beginners to practice; the existing tennis launching device can not adjust the direction of launching the tennis according to the requirements of the players, thus greatly hindering the training of the players and failing to achieve the ideal training effect; most of the existing tennis launching devices need to be manually controlled, a large amount of manpower and time are wasted, the devices cannot serve automatically, and the training effect is reduced.

Disclosure of Invention

In view of this, the utility model aims at providing a tennis training auxiliary device can make things convenient for the tennis training, improves the efficiency of training.

The utility model discloses a following method realizes: the utility model provides a tennis training auxiliary device, includes the base, its characterized in that: a tennis ball storage barrel and a tennis ball conveying barrel are arranged on the base, a partition plate is arranged in the tennis ball storage barrel and divides the tennis ball storage barrel into an upper cavity and a lower cavity, a first ball outlet is formed in the left end of the partition plate, a first motor is arranged in the lower cavity of the tennis ball storage barrel, an output shaft of the first motor penetrates through the partition plate and extends into the upper cavity of the tennis ball storage barrel, a second ball outlet is formed in the tennis ball storage barrel and is provided with a ball outlet pipe, a ball inlet of the ball outlet pipe is connected with the first ball outlet, an outlet of the ball outlet pipe sequentially penetrates through the second ball outlet and the lower end of the outer peripheral side wall of the tennis ball conveying barrel and extends into the tennis ball conveying barrel, a rotary rod is arranged at the tail end of the output shaft of the first motor, a rotary disc is arranged on the output shaft of the first motor and is arranged below the rotary rod, holes for dropping tennis balls are formed in the periphery of the rotary table, and a switch sensor is arranged at a ball inlet of the ball outlet pipe; the tennis ball conveying device is characterized in that a supporting seat is arranged on the base, a second motor is arranged below the supporting seat, the tennis ball conveying cylinder is arranged on the upper surface of the supporting seat, the output end of the second motor is connected with a rotating shaft, the rotating shaft penetrates through the supporting seat and extends into the tennis ball conveying cylinder, the peripheral side wall of the rotating shaft is provided with an auger for conveying tennis balls from bottom to top, the side surface of the auger is provided with a positioning rod for limiting the conveying direction of the tennis balls, the tail end of the tennis ball conveying cylinder is provided with a transmitting tube convenient for conveying the tennis balls out of the tennis ball conveying cylinder, a rebounding device for adjusting the falling direction of the tennis balls is arranged right below the outlet of the transmitting tube, the rebounding device comprises a supporting plate, a ring is arranged on the supporting plate, a tennis net is paved in the ring, and a lifting assembly for driving, the lifting components are arranged on three vertexes of an inscribed triangle of an inscribed circle on the upper surface of the supporting plate, and grooves matched with the lifting components are formed in the circular ring.

Further, the lifting assembly comprises a fixed plate, an electric telescopic cylinder is arranged on the fixed plate, and a telescopic end of the telescopic cylinder is arranged in the groove to be fixed.

Further, lifting unit includes the third motor, third motor output is provided with the screw rod, the cover is equipped with a nut on the screw rod, be provided with on the nut periphery lateral wall with the first convex part of recess matched with, be provided with on the nut tip and be used for preventing the nut breaks away from the circular limiting plate of screw rod.

Further, the tennis ball conveying cylinder and the rotating shaft are detachably arranged, the tennis ball conveying cylinder comprises a first cylinder body fixed on the upper surface of the supporting seat, a plurality of sections of second cylinder bodies are connected and arranged on the first cylinder body, second convex parts are arranged on the left and right sides of the upper end of the outer peripheral side wall of the first cylinder body, first threaded holes are formed in the second convex parts, third convex parts are arranged on the left and right sides of the upper end of the outer peripheral side wall of the second cylinder body, fourth convex parts matched with the second convex parts are arranged at the lower end of the outer peripheral side wall of the second cylinder body, second screw holes are formed in the third convex parts and the fourth convex parts, the second cylinder body is fixed above the first cylinder body by penetrating first bolts through the first screw holes and the second screw holes, a third cylinder body is connected and arranged on the second cylinder body, and a fifth convex part matched with the third convex parts is arranged at the lower end of the outer peripheral side wall of the third, a third screw hole is formed in the fifth convex part, the third cylinder is fixed above the second cylinder through a second bolt, and the transmitting tube is arranged at the upper end of the peripheral side wall of the third cylinder; the supporting seat upper surface middle part is provided with first bearing, upper surface middle part is provided with the second bearing in the third barrel, the axis of rotation include with the first pivot of first bearing inner circle connection, fourth screw hole has been seted up at first pivot upper surface middle part, it is provided with multistage second pivot to connect in the first pivot, second pivot lower surface be provided with fourth screw hole matched with sixth convex part, fifth screw hole has been seted up at second pivot upper surface middle part, second pivot top connection is provided with the third pivot, third pivot lower surface be provided with fifth screw hole matched with seventh convex part, third pivot upper end with the second bearing inner circle is connected.

Furthermore, universal wheels convenient to move are arranged on the periphery of the lower portion of the base.

Furthermore, the rotary rod includes the first body of rod and the second body of rod, the first body of rod with the both ends of the second body of rod all have the curved part that is used for spacing tennis to do benefit to that the tennis can be better drop extremely in the hole.

The beneficial effects of the utility model reside in that: the utility model adds a tennis storage cylinder, a tennis delivery cylinder and a rebound device in the device, the tennis is delivered to the tennis delivery cylinder through the tennis storage cylinder and then sent out through the tennis delivery cylinder, the tennis is continuously popped out at the same interval time through the rebound device, which is convenient for the beginner to train, thereby ensuring the goal of serving the tennis, being convenient for the beginner to train in a previous period in a repeated way, being beneficial to the beginner to quickly improve the skill of tennis training in the previous period; the ball is sent out without manual operation in midway, so that the athletes can carry out continuous batting training, and the training efficiency is greatly improved; the tennis ball conveying cylinder and the rotating shaft in the device are detachable, so that a worker can adjust the height of the tennis ball conveying cylinder to adjust the force for serving balls, and the tennis ball conveying cylinder is convenient for beginners at different ages to use, so that the tennis ball serving device is more convenient to transport, can be disassembled and assembled, and is convenient to transport; the utility model discloses simple structure, the simple operation reduces manpower and materials in a large number, and the transportation of being convenient for has improved the efficiency of tennis training.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a sectional view taken along the direction a-a.

Figure 3 is a top view of the internal structure of the tennis ball storage cylinder.

Fig. 4 is a schematic structural view of a first embodiment of the rebounding device.

Fig. 5 is a schematic structural view of a second embodiment of the rebounding device.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

Referring to fig. 1 to 5, the present invention provides an embodiment: an auxiliary device for tennis training comprises a base 1, wherein a tennis storage barrel 2 and a tennis conveying barrel 3 are arranged on the base 1, a partition plate 21 is arranged in the tennis storage barrel 2, the tennis storage barrel 2 is divided into an upper cavity and a lower cavity by the partition plate 21, a first ball outlet 22 is formed in the left end of the partition plate 21, a first motor 23 is arranged in the lower cavity of the tennis storage barrel 2, an output shaft of the first motor 23 penetrates through the partition plate 21 and extends into the upper cavity of the tennis storage barrel 2, a second ball outlet 24 is formed in the tennis storage barrel 2, a ball outlet pipe 25 is arranged on the second ball outlet 24, a ball inlet of the ball outlet pipe 25 is connected with the first ball outlet 22, an outlet of the ball outlet pipe 25 penetrates through the second ball outlet 24 and the lower end of the peripheral side wall of the tennis conveying barrel 3 in sequence and extends into the tennis conveying barrel 3, a rotating rod 26 is arranged at the tail end of the output shaft of the first motor 23, a rotating disc 27 is arranged on the output shaft of the first motor 23, the rotating disc 27 is arranged below the rotating rod 26, holes 28 for dropping tennis balls are formed in the periphery of the rotating disc 27, a switch sensor 29 is arranged at the ball inlet of the ball outlet pipe 25, tennis balls are stored in the upper cavity of the tennis storage barrel 2, when the tennis ball storage barrel is used, the first motor 23 is started, the output shaft of the first motor 23 rotates to drive the rotating disc 27 and the rotating rod 26 to rotate simultaneously, the rotating rod 26 rotates to drive the tennis balls in the upper cavity to rotate, so that the tennis balls can fall into the holes 28 of the rotating disc 27 and then fall into the first ball outlet 22 through the holes 28, the tennis balls are conveyed into the tennis conveying barrel 3 from the second ball outlet 24 under the action of the ball outlet pipe 25, and the falling tennis balls can push the falling tennis balls into the tennis conveying barrel 3, in order to avoid that too much tennis balls drop to block the ball outlet pipe 25, when the falling height of the tennis balls touches the switch sensor 29, the switch sensor 29 sends a signal to turn off the first motor 23, so that the tennis balls are prevented from dropping continuously to cause the rotary disc 27 to be blocked, and the first motor 23 is prevented from being burnt out; the tennis ball conveying device is characterized in that a supporting seat 11 is arranged on the base 1, a second motor 12 is arranged below the supporting seat 11, the tennis ball conveying cylinder 3 is arranged on the upper surface of the supporting seat 11, an output end of the second motor 12 is connected with and provided with a rotating shaft 4, the rotating shaft 4 penetrates through the supporting seat 11 and extends into the tennis ball conveying cylinder 3, an auger 41 used for conveying tennis balls from bottom to top is arranged on the peripheral side wall of the rotating shaft 4, a positioning rod 42 used for limiting the conveying direction of the tennis balls is arranged on the side surface of the auger 41, so that the second motor 12 drives the rotating shaft 4 to rotate, the rotating shaft 12 rotates to drive the auger 41 to move upwards, the positioning rod 42 can limit the direction of the tennis balls when the tennis balls fall into the tennis ball conveying cylinder 3, the tennis balls can move upwards along with the action of the auger 41, the tail end of the tennis ball conveying cylinder 3, under the action of the launching tube 31, the tennis balls in the tennis ball conveying cylinder 3 fall off, so that a user can conveniently practice hitting the tennis balls, a rebound device 5 for adjusting the falling direction of the tennis balls is arranged under the outlet of the launching tube 31, the rebound device 5 comprises a supporting plate 51, a ring 52 is arranged on the supporting plate 51, a tennis net 53 is paved in the ring 52, a lifting component 6 for driving the tennis net 53 to ascend and descend is arranged below the ring 52, the lifting component 6 is arranged on three vertexes of an inscribed triangle inscribed with a circle on the upper surface of the supporting plate 51, a groove 54 matched with the lifting component 6 is formed in the ring 52, so that the ring 52 can be driven to ascend and descend under the action of the lifting component 6, the adjustment of the direction when the tennis balls fall off is realized, and each lifting component 6 is controlled by an independent motor, so that when each lifting component 6 drives three vertexes of the ring 52 to ascend and descend, the lifting height can be inconsistent, and the adjustment of each angle can be carried out, so that a good training effect is achieved.

As shown in fig. 4, in an embodiment of the present invention, the lifting assembly 6 includes a fixing plate 61, an electric telescopic cylinder 62 is disposed on the fixing plate 61, and a telescopic end of the electric telescopic cylinder 62 is disposed in the groove 54 for fixing. The electric telescopic cylinder 62 is lifted to drive the ring 52 to lift, so as to adjust the falling direction of the fixed tennis ball, and enable a user to train the hitting ball better.

As shown in fig. 5, in an embodiment of the present invention, the lifting assembly 6 includes a third motor 63, a screw 64 is disposed at an output end of the third motor 63, a nut 65 is sleeved on the screw 64, a first protrusion 66 engaged with the groove 54 is disposed on a peripheral sidewall of the nut 65, and a circular limiting plate 67 for preventing the nut 65 from being disengaged from the screw 64 is disposed at an end of the nut 65. The third motor 63 can drive the screw rod 64 to rotate, the screw rod 64 can drive the nut 65 to move up and down by rotating, and the nut 65 can drive the ring 52 to move up and down by moving up and down under the action of the first convex part 66, so as to adjust the dropping direction of the fixed tennis ball, and enable a user to train the hitting ball better.

With continuing reference to fig. 1 and 2, in an embodiment of the present invention, the tennis ball feeding cylinder 3 and the rotating shaft 4 are detachably disposed, the tennis ball feeding cylinder 3 includes a first cylinder 32 fixed on the upper surface of the supporting seat 11, a plurality of sections of second cylinders 33 are connected to the first cylinder 32, second protrusions 34 are disposed on the left and right sides of the upper end of the peripheral sidewall of the first cylinder 32, first threaded holes (not shown) are formed on the second protrusions 34, third protrusions 35 are disposed on the left and right sides of the upper end of the peripheral sidewall of the second cylinder 33, a fourth protrusion 36 matched with the second protrusion 34 is disposed on the lower end of the peripheral sidewall of the second cylinder 33, second screw holes 37 are formed on the third protrusion 34 and the fourth protrusion 36, and the second cylinder 33 is fixed above the first cylinder 32 by a first bolt 38 passing through the first screw holes and the second screw holes 37, the second cylinder 33 is connected with a third cylinder 39, a fifth convex part 7 matched with the third convex part 35 is arranged at the lower end of the peripheral side wall of the third cylinder 39, a third screw hole 71 is formed in the fifth convex part 7, the third cylinder 39 is fixed above the second cylinder 33 through a second bolt 72, and the transmitting tube 31 is arranged at the upper end of the peripheral side wall of the third cylinder 39; the upper surface middle part of the support seat 11 is provided with a first bearing 13, the upper surface middle part is provided with a second bearing 391 in the third barrel 39, the axis of rotation 4 include with the first pivot 43 of first bearing 13 inner circle connection, fourth screw hole (not shown) has been seted up at first pivot 43 upper surface middle part, it is provided with multistage second pivot 44 to connect on the first pivot 43, second pivot 44 lower surface be provided with fourth screw hole matched with sixth convex part 45, fifth screw hole (not shown) has been seted up at second pivot 44 upper surface middle part, it is provided with third pivot 46 to connect above the second pivot 44, third pivot 46 lower surface be provided with fifth screw hole matched with seventh convex part 47, third pivot 46 upper end with the second bearing 391 inner circle is connected. The multi-section second barrel body 33 can be disassembled by the user through the first bolt 38 and the second bolt 72, and the multi-section second rotating shaft 44 can be spirally disassembled, so that the tennis ball conveying barrel 3 can be disassembled and assembled at any time when the user carries the tennis ball, and is convenient to carry, and the tennis ball conveying barrel can be adjusted in height and serve strength according to users of different ages to adapt to the users of different ages.

Referring to fig. 1 and fig. 2, in an embodiment of the present invention, universal wheels 14 are disposed around the bottom of the base 1 for easy movement.

As shown in fig. 3, in an embodiment of the present invention, the rotating rod 26 includes a first rod 261 and a second rod 262, and both ends of the first rod 261 and the second rod 262 have a bent portion for limiting a tennis ball, so that the tennis ball can better fall into the hole 28. By the limiting action of the bent portion, the first rod 261 and the second rod 262 can limit the tennis ball when rotating, so that the tennis ball can fall into the hole 28 better.

The utility model provides a first motor, second motor, third motor, electronic telescopic cylinder and switch sensor's circuit principle and structure are prior art, and the technical personnel in the field can know in detail already, do not explain in detail here, the utility model provides a switch sensor model can be MH281, but is not limited to this.

The utility model discloses a theory of operation: when the tennis ball feeding device is used, the user speaks the rebounding device to be placed under the outlet of the launching tube, the user adjusts the height position and the inclination angle of the circular ring to a proper position by opening the lifting assembly, so that the bouncing and falling directions of the tennis ball can be adjusted, the user can conveniently hit the tennis ball, when the user needs to carry out service training, the first motor is started, the first motor rotates to drive the rotary disc and the rotary bar to simultaneously rotate, the rotary bar drives the tennis ball in the upper cavity to rotate, the tennis ball rotates into the hole of the rotary disc and falls into the first ball outlet, the tennis ball falls into the ball outlet through the first ball outlet, the tennis ball is conveyed into the tennis conveying cylinder through the second ball outlet and the ball outlet, the second motor is started to drive the rotary shaft to rotate, the rotary shaft rotates to drive the auger to move upwards, so that the auger drives the tennis ball to move upwards, due to the action of the positioning, the tennis ball can move upwards, is sent out from the launching tube and falls onto the serving net, and the serving net bounces the tennis ball, so that a user can carry out batting training, the process is continuously circulated, the athlete can carry out continuous batting training, the training efficiency is greatly improved, and a good training effect is achieved.

The above is only the preferred embodiment of the present invention, and all the equivalent changes and modifications made according to the claims of the present invention should be covered by the present invention.

Claims

1. The utility model provides a tennis training auxiliary device, includes the base, its characterized in that: a tennis ball storage barrel and a tennis ball conveying barrel are arranged on the base, a partition plate is arranged in the tennis ball storage barrel and divides the tennis ball storage barrel into an upper cavity and a lower cavity, a first ball outlet is formed in the left end of the partition plate, a first motor is arranged in the lower cavity of the tennis ball storage barrel, an output shaft of the first motor penetrates through the partition plate and extends into the upper cavity of the tennis ball storage barrel, a second ball outlet is formed in the tennis ball storage barrel and is provided with a ball outlet pipe, a ball inlet of the ball outlet pipe is connected with the first ball outlet, an outlet of the ball outlet pipe sequentially penetrates through the second ball outlet and the lower end of the outer peripheral side wall of the tennis ball conveying barrel and extends into the tennis ball conveying barrel, a rotary rod is arranged at the tail end of the output shaft of the first motor, a rotary disc is arranged on the output shaft of the first motor and is arranged below the rotary rod, holes for dropping tennis balls are formed in the periphery of the rotary table, and a switch sensor is arranged at a ball inlet of the ball outlet pipe; the tennis ball conveying device is characterized in that a supporting seat is arranged on the base, a second motor is arranged below the supporting seat, the tennis ball conveying cylinder is arranged on the upper surface of the supporting seat, the output end of the second motor is connected with a rotating shaft, the rotating shaft penetrates through the supporting seat and extends into the tennis ball conveying cylinder, the peripheral side wall of the rotating shaft is provided with an auger for conveying tennis balls from bottom to top, the side surface of the auger is provided with a positioning rod for limiting the conveying direction of the tennis balls, the tail end of the tennis ball conveying cylinder is provided with a transmitting tube convenient for conveying the tennis balls out of the tennis ball conveying cylinder, a rebounding device for adjusting the falling direction of the tennis balls is arranged right below the outlet of the transmitting tube, the rebounding device comprises a supporting plate, a ring is arranged on the supporting plate, a tennis net is paved in the ring, and a lifting assembly for driving, the lifting components are arranged on three vertexes of an inscribed triangle of an inscribed circle on the upper surface of the supporting plate, and grooves matched with the lifting components are formed in the circular ring.

2. A tennis training aid as claimed in claim 1, wherein: the lifting assembly comprises a fixed plate, an electric telescopic cylinder is arranged on the fixed plate, and a telescopic end of the telescopic cylinder is arranged in the groove to be fixed.

3. A tennis training aid as claimed in claim 1, wherein: the lifting component comprises a third motor, the output end of the third motor is provided with a screw rod, a nut is sleeved on the screw rod, a first convex part matched with the groove is arranged on the side wall of the periphery of the nut, and the nut is prevented from being separated from the circular limiting plate of the screw rod.

4. A tennis training aid as claimed in claim 1, wherein: the tennis ball conveying cylinder and the rotating shaft are detachably arranged, the tennis ball conveying cylinder comprises a first cylinder body fixed on the upper surface of a supporting seat, a plurality of sections of second cylinder bodies are connected and arranged on the first cylinder body, second convex parts are arranged on the left and right sides of the upper end of the peripheral side wall of the first cylinder body, first screw holes are formed in the second convex parts, third convex parts are arranged on the left and right sides of the upper end of the peripheral side wall of the second cylinder body, fourth convex parts matched with the second convex parts are arranged at the lower end of the peripheral side wall of the second cylinder body, second screw holes are formed in the third convex parts and the fourth convex parts, the second cylinder body is fixed above the first cylinder body by penetrating through the first screw holes and the second screw holes through first bolts, a third cylinder body is connected and arranged on the second cylinder body, and a fifth convex part matched with the third convex parts is arranged at the lower end of the peripheral side wall of the third cylinder body, a third screw hole is formed in the fifth convex part, the third cylinder is fixed above the second cylinder through a second bolt, and the transmitting tube is arranged at the upper end of the peripheral side wall of the third cylinder; the supporting seat upper surface middle part is provided with first bearing, upper surface middle part is provided with the second bearing in the third barrel, the axis of rotation include with the first pivot of first bearing inner circle connection, fourth screw hole has been seted up at first pivot upper surface middle part, it is provided with multistage second pivot to connect in the first pivot, second pivot lower surface be provided with fourth screw hole matched with sixth convex part, fifth screw hole has been seted up at second pivot upper surface middle part, second pivot top connection is provided with the third pivot, third pivot lower surface be provided with fifth screw hole matched with seventh convex part, third pivot upper end with the second bearing inner circle is connected.

5. A tennis training aid as claimed in claim 1, wherein: the universal wheels convenient to move are arranged on the periphery below the base.

6. A tennis training aid as claimed in claim 1, wherein: the rotary rod comprises a first rod body and a second rod body, and bent portions used for limiting tennis balls are arranged at two ends of the first rod body and at two ends of the second rod body, so that the tennis balls can better fall into the holes.