CN111450508A

CN111450508A - Tennis is swung and is clapped training automatically regulated service device

Info

Publication number: CN111450508A
Application number: CN202010341358.6A
Authority: CN
Inventors: 董雷
Original assignee: Binzhou University
Current assignee: Binzhou University
Priority date: 2020-04-24
Filing date: 2020-04-24
Publication date: 2020-07-28
Anticipated expiration: 2040-04-24
Also published as: CN111450508B

Abstract

The invention discloses an automatic adjusting service device for tennis swing training, which mainly comprises an outer frame, a support, a ball hopper, a middle pipe, a sealing shell, a blocking plate and an air pump, wherein the upper part of the support is provided with a rotating pin in a penetrating and rotating manner, the ball hopper is fixedly arranged between the two rotating pins, the front end of the rotating pin positioned at the front part is fixedly provided with a swinging plate, the middle part of the front side of the support is rotatably provided with an electric cylinder, the bottom end of the electric cylinder is rotatably connected with the swinging plate through a rotating shaft, and the rear end of the rotating pin positioned at the rear part is fixedly provided with. The invention has reasonable structural design, compact internal structure, good sealing effect of the middle pipe during ball discharging and stable ball discharging control; the gas discharged after internal driving blows the ball, so that the energy consumption utilization rate is improved, the ball can fall more conveniently, and the blockage is avoided; the device can swing left and right, swing up and down and adjust the ball discharging speed, does not need mechanical parts such as springs and the like which are easy to strain, and ensures the stability of the device for long-time use.

Description

Tennis is swung and is clapped training automatically regulated service device

Technical Field

The invention relates to the field of physical training appliances, in particular to an automatic adjusting service device for tennis racket swinging training.

Background

Tennis is a type of ball game that is commonly played between two singlets or two pairs of players. A player strikes a tennis ball on a tennis court with a tennis racket through a net; modern tennis originated in birmingham, england in the 19 th century, originally called "grass tennis", after which it has gained rapid development, the first grand slam wenbuerden championship in 1877, followed by the american net in 1881, the french net in 1891, and the australian net in 1905, the four grand slam game of tennis; the origin and development of tennis can be summarized in four sentences: the ball serving device is used for long-time, stable and frequent serving during tennis training, and is called the second-largest ball game in the world, wherein the ball serving device is used for serving balls.

The structure of current service device is simple and crude, service device overall structure dispersion, and is bulky, and the service adopts and casts the latter spring and launch, the stability of casting the device is inserted, the precision is low, spring ejection equipment uses for a long time and has the phenomenon that the spring is tired soft, wholly cast the dynamics, the angle of device and play ball speed can not be adjusted or can only manually regulated, at the service in-process, can't carry out real-time ball way and ball speed change, it is too deadly, the training effect is poor, it is inconvenient to use.

Disclosure of Invention

The invention aims to provide an automatic adjusting service device for tennis racket swinging training, which aims to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme:

an automatic adjusting service device for tennis swing training mainly comprises an outer frame, a support, ball hoppers, a middle pipe, a sealing shell, a blocking plate and an air pump, wherein rotary pins are rotatably arranged on the upper portion of the support in a penetrating manner, the ball hoppers are fixedly arranged between the two rotary pins, a swing plate is fixedly arranged at the front ends of the rotary pins at the front portions, electric cylinders are rotatably arranged in the middle of the front sides of the support, the bottom ends of the electric cylinders are rotatably connected with the swing plate through rotary shafts, gear rings are fixedly arranged at the rear ends of the rotary pins at the rear portions, angle sensors are fixedly arranged on the upper portions of the rear sides of the support, and rotating shafts of the angle sensors are meshed with the gear;

a sealing shell is rotatably mounted at the bottom end of the ball hopper, a middle pipe with a left opening is fixedly mounted at the bottom end of the sealing shell, a motor shell is fixedly mounted on the outer wall of the right part of the bottom end of the ball hopper, a motor is fixedly mounted on the inner side of the motor shell, a toothed plate is fixedly mounted at the right part of the top end of the sealing shell, a motor shaft of the motor is meshed with the toothed plate through a gear, and a limiter is fixedly mounted in the middle of the bottom end of the middle;

a telescopic pipe is fixedly arranged in the middle of the right side wall of the middle pipe in a penetrating manner, a hose is fixedly arranged at the right end of the telescopic pipe, a pressure limiting valve is fixedly arranged at the right part of the bottom end of the middle pipe, the right end of the pressure limiting valve is fixedly connected with the hose, an air storage tank is fixedly arranged at the left end of the middle pipe at the bottom end of the pressure limiting valve, an air pump is fixedly arranged at the left part of the bottom end of the middle pipe, the right end of the air pump is communicated with the left end of the air storage tank through an air pipe, a reversing valve is fixedly arranged at the left end of the telescopic pipe, a blocking plate is fixedly arranged at the outer side of the reversing valve, a rubber plate is fixedly arranged at the left end of the blocking plate, a reset spring is fixedly arranged at the right end of the blocking plate, the right, well pipe bottom right part inner wall seted up with spacing piece complex spout, frame bottom middle part fixed mounting has the adapter, ball fill outside lower part fixed mounting has the switching frame, and the switching frame rotates with the adapter to be connected.

As a further scheme of the invention: the lower part of the swing plate is fixedly provided with a sliding seat, the lower part of the front side of the bracket is fixedly provided with a limiting seat matched with the sliding seat, and the limiting seat is connected with the sliding seat in a sliding manner.

As a still further scheme of the invention: the top end of the ball hopper is rotatably provided with a cover plate.

As a still further scheme of the invention: the side wall of the right side of the top end of the outer frame is provided with an arc-shaped slot matched with the motor, and the side wall of the middle of the top end of the outer frame is provided with a round hole matched with the ball hopper.

As a still further scheme of the invention: the stopper mainly includes backing pin, sliding sleeve, spring and electro-magnet, well pipe lower part lateral wall is managed in sliding sleeve outside upper portion outer wall fixed connection, the inboard slidable mounting of sliding sleeve has the backing pin, and backing pin middle part fixed mounting has the spring, sliding sleeve bottom fixed mounting has the electro-magnet, spring bottom fixed connection electro-magnet top lateral wall.

As a still further scheme of the invention: the middle pipe top end right part is provided with a sliding opening matched with the blocking plate, the bottom end of the blocking plate is embedded with a sealing plate, and the side wall of the top end of the sealing plate is in close contact with the outer wall of the middle part of the top end of the middle pipe.

As a still further scheme of the invention: the controller is fixedly installed on the outer wall of the left side of the ball hopper, electrically connected with the electric cylinder, the motor, the reversing valve, the air pump, the electromagnet, the angle sensor and the pressure limiting valve through a wire harness, and electrically connected with an external power supply through the wire harness.

Compared with the prior art, the invention has the beneficial effects that:

the invention has reasonable structural design, compact internal structure, good sealing effect of the middle pipe during ball discharging and stable ball discharging control: the gas discharged after internal driving blows the ball, so that the energy consumption utilization rate is improved, the ball can fall more conveniently, and the blockage is avoided; the device can swing left and right, swing up and down and adjust the ball discharging speed, does not need mechanical parts such as springs and the like which are easy to strain, and ensures the stability of the device for long-time use.

Drawings

Fig. 1 is a schematic structural view of an automatic adjusting service device for tennis racket swinging training.

Fig. 2 is a schematic semi-cut view of the front half part of the support in the automatic adjusting service device for training the tennis racket swing.

Fig. 3 is a rear view schematic diagram of the automatic adjusting service device for tennis racket swinging training.

Fig. 4 is a schematic cross-sectional view of the outer frame, the middle tube, the blocking plate, the air pump and the sealing shell in the automatic adjusting service device for training the tennis racket swing.

Fig. 5 is a schematic top view of the outer frame, the middle tube, the adapter frame and the sealing shell of the automatic adjusting service device for training tennis swing.

Fig. 6 is a schematic cross-sectional view of the automatic adjusting service device for training tennis racket swinging, wherein the ball inlet, the middle tube and the sealing shell are arranged between the two.

Fig. 7 is a schematic structural diagram of the baffle, the sealing plate, the blocking plate and the reversing valve in the automatic adjusting service device for tennis swing training.

Fig. 8 is a schematic structural view of the automatic adjusting service device for training tennis swing, wherein the stop pin, the middle tube, the sliding sleeve and the spring are arranged among the automatic adjusting service device.

In the figure: the device comprises an outer frame 1, a motor shell 2, a support 3, a cover plate 4, a ball hopper 5, a rotating pin 6, a swing plate 7, a middle pipe 8, a limiting seat 9, a sliding seat 10, an electric cylinder 11, an adapter frame 12, a stop pin 13, a sealing plate 14, a sealing shell 15, a toothed plate 16, a motor 17, an extension pipe 18, a return spring 19, a blocking plate 20, a reversing valve 21, a baffle plate 22, an adapter 23, a sliding sleeve 24, an air pump 25, a spring 26, an electromagnet 27, a rubber plate 28, a semi-rubber ring 29, a limiting piece 30, a ball inlet 31, a gear ring 32, a protective shell 33, an angle sensor 34, a hose 35, a pressure limiting valve 36, an air storage tank 37 and a controller.

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.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can, for example, be fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 8, in the embodiment of the present invention, an automatic ball serving device for tennis swing training mainly includes an outer frame 1, a support 3, a ball hopper 5, a middle pipe 8, a sealing shell 15, a blocking plate 20 and an air pump 25, where a rotating pin 6 is rotatably installed on the upper portion of the support 3 in a penetrating manner, the ball hopper 5 is fixedly installed between the two rotating pins 6, a swing plate 7 is fixedly installed at the front end of the rotating pin 6 located at the front portion, an electric cylinder 11 is rotatably installed at the middle portion of the front side of the support 3, the bottom end of the electric cylinder 11 is rotatably connected with the swing plate 7 through a rotating shaft, a gear ring 32 is fixedly installed at the rear end of the rotating pin 6 located at the rear portion, an angle sensor 34 is fixedly installed at the upper portion of the rear side of the support 3;

a sealing shell 15 is rotatably mounted at the bottom end of the ball hopper 5, a middle pipe 8 with a left opening is fixedly mounted at the bottom end of the sealing shell 15, a motor shell 2 is fixedly mounted on the outer wall of the right part of the bottom end of the ball hopper 5, a motor 17 is fixedly mounted on the inner side of the motor shell 2, a toothed plate 16 is fixedly mounted at the right part of the top end of the sealing shell 15, a motor shaft of the motor 17 is meshed and connected with the toothed plate 16 through a gear, and a stopper is fixedly mounted in the middle of the bottom end of;

a telescopic pipe 18 is fixedly installed in the middle of the right side wall of the middle pipe 8 in a penetrating manner, a hose 35 is fixedly installed at the right end of the telescopic pipe 18, a pressure limiting valve 36 is fixedly installed at the right part of the bottom end of the middle pipe 8, the right end of the pressure limiting valve 36 is fixedly connected with the hose 35, an air storage tank 37 is fixedly installed at the left end of the pressure limiting valve 36 at the bottom end of the middle pipe 8, an air pump 25 is fixedly installed at the left part of the bottom end of the middle pipe 8, the right end of the air pump 25 is communicated with the left end of the air storage tank 37 through an air pipe, a reversing valve 21 is fixedly installed at the left end of the telescopic pipe 18, a blocking plate 20 is fixedly installed at the outer side of the reversing valve 21, a rubber plate 28 is fixedly installed at the left end of the blocking plate 20, a return spring 19 is fixedly installed at the right end of the blocking plate 20, the right end, the 20 bottom side wall fixed mounting of closure plate has spacing piece 30, well 8 bottom right part inner walls of pipe offer with spacing piece 30 complex spout, 1 bottom middle part fixed mounting of frame has

adapter

23, 5 outside lower parts fixed mounting of ball fill have adapter 12, and adapter 12 is connected with adapter 23 rotation.

The lower part of the swing plate 7 is fixedly provided with a sliding seat 10, the lower part of the front side of the bracket 3 is fixedly provided with a limiting seat 9 matched with the sliding seat 10, and the limiting seat 9 is connected with the sliding seat 10 in a sliding manner.

The top end of the ball hopper 5 is rotatably provided with a cover plate 4.

The side wall of the right side of the top end of the outer frame 1 is provided with an arc-shaped slot matched with the motor 17, and the side wall of the middle of the top end of the outer frame 1 is provided with a round hole matched with the ball hopper 5.

Stopper mainly includes backing pin 13, sliding sleeve 24, spring 26 and electro-

magnet

27, 8 lower part lateral walls in the pipe in the outer wall fixed connection in the 24 outside upper portion of sliding sleeve, 24 inboard slidable mounting of sliding sleeve has backing pin 13, and backing pin 13 middle part fixed mounting has

spring

26, 24 bottom fixed mounting of sliding sleeve has electro-magnet 27, the lateral wall in spring 26 bottom fixed connection electro-magnet 27 top.

The sliding opening matched with the blocking plate 22 is formed in the right portion of the top end of the middle pipe 8, the sealing plate 14 is fixedly installed at the bottom end of the blocking plate 22 in an embedded mode, and the side wall of the top end of the sealing plate 14 is in close contact with the outer wall of the middle portion of the top end of the middle pipe 8.

The controller 38 is fixedly installed on the outer wall of the left side of the ball hopper 5, the controller 38 is electrically connected with the electric cylinder 11, the motor 17, the reversing valve 21, the air pump 25, the electromagnet 27, the angle sensor 34 and the pressure limiting valve 36 through a wire harness, and the controller 38 is electrically connected with an external power supply through the wire harness.

The working principle of the invention is as follows:

the invention relates to an automatic ball serving device for tennis swing training, which is characterized in that when the device is used, a ball is poured into a ball hopper 5, the ball serving frequency, the ball serving speed and the ball serving angle can be set through a program in a controller 38, and after the device is set, the device automatically works according to a preset program, and the ball serving frequency changes: the reversing valve 21 can be periodically powered by the controller 38, the power supply cycle is a ball discharging cycle, before a ball is discharged, the electromagnet 27 is powered off, the stop pin 13 is supported to limit the ball, the blocking plate 20 is positioned at the right end of the middle pipe 8, the ball can fall into the middle pipe 8 from the ball inlet 31, the air pump 25 is continuously started, high-pressure air is arranged in the air storage tank 37, when the ball needs to be discharged, the reversing valve 21 conducts the right space of the middle pipe 8 with the air storage tank 37, the blocking plate 20 with sealed edges slides leftwards by air pressure, the return spring 19 is lengthened, the blocking plate 22 blocks the ball inlet 31 at the moment, the left part of the middle pipe 8 is only provided with one opening at the left end, then the electromagnet 27 is powered on to attract the stop pin 13 downwards to open the channel, then the reversing valve 21 reverses to blow the air in the air storage tank 37 to blow the ball at a high speed, the ball is sent out, a ball discharging cycle is completed, the internal, the ball discharging control is stable;

after the balls are discharged, the right space of the middle pipe 8 is communicated with the left space of the middle pipe 8 through the reversing valve 21, the gas which is just filled in the right space of the middle pipe 8 enters the left space of the middle pipe 8, and after the ball inlet 31 is opened through the baffle plate 22, the gas can enter the ball hopper 5 from the ball inlet 31, the gas blows the balls in the ball hopper 5, the blown balls can fall conveniently, and blocking is avoided;

the device that can simultaneously set up the horizontal hunting and the luffing motion, the horizontal hunting is passed through motor 17 and pinion rack 16 relative movement and is realized, make frame 1 can wind ball fill 5 at certain within range internal rotation, motor 17's slew velocity is slow, and can reciprocating rotation, make well pipe 8 orientation can slow reciprocating oscillation, the luffing motion can be realized through balance weight 7 and electric cylinder 11 cooperation simultaneously, for guaranteeing that the scope of wobbling is controllable, can carry out swing angle's real-time supervision through angle sensor 34, detection signal sends controller 38, form closed-loop control, simultaneous control ware 38 cooperates pressure limiting valve 36 to carry out gas storage pressure and controls, energy storage pressure is big ball speed, energy storage pressure is little to go out the ball slowly, and through pneumatic play ball, do not need the mechanical part of easy strain such as spring, guarantee the stability of long-time use of device.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. An automatic adjusting service device for tennis swing training, which mainly comprises an outer frame (1), a bracket (3), a ball hopper (5), a middle pipe (8), a sealing shell (15), a blocking plate (20) and an air pump (25), it is characterized in that the upper part of the bracket (3) is provided with a rotating pin (6) in a penetrating and rotating way, a ball hopper (5) is fixedly arranged between the two rotating pins (6), the front end of the rotating pin (6) positioned at the front part is fixedly provided with a swinging plate (7), an electric cylinder (11) is rotatably arranged in the middle of the front side of the bracket (3), the bottom end of the electric cylinder (11) is rotatably connected with the swing plate (7) through a transfer shaft, a gear ring (32) is fixedly arranged at the rear end of the rotary pin (6) positioned at the rear part, an angle sensor (34) is fixedly mounted at the upper part of the rear side of the bracket (3), and a rotating shaft of the angle sensor (34) is meshed with the gear ring (32) through an external gear;

a sealing shell (15) is rotatably mounted at the bottom end of the ball hopper (5), a middle pipe (8) with a left opening is fixedly mounted at the bottom end of the sealing shell (15), a motor shell (2) is fixedly mounted on the outer wall of the right part of the bottom end of the ball hopper (5), a motor (17) is fixedly mounted on the inner side of the motor shell (2), a toothed plate (16) is fixedly mounted at the right part of the top end of the sealing shell (15), a motor shaft of the motor (17) is meshed and connected with the toothed plate (16) through a gear, and a stopper is fixedly mounted in the middle of the bottom end of the middle;

a telescopic pipe (18) penetrates through and is fixedly installed in the middle of the right side wall of the middle pipe (8), a hose (35) is fixedly installed at the right end of the telescopic pipe (18), a pressure limiting valve (36) is fixedly installed at the right end of the bottom of the middle pipe (8), the right end of the pressure limiting valve (36) is fixedly connected with the hose (35), an air storage tank (37) is fixedly installed at the left end of the pressure limiting valve (36) at the bottom of the middle pipe (8), an air pump (25) is fixedly installed at the left end of the bottom of the middle pipe (8), the right end of the air pump (25) is communicated with the left end of the air storage tank (37) through an air pipe, a reversing valve (21) is fixedly installed at the left end of the telescopic pipe (18), a blocking plate (20) is fixedly installed at the outer side of the reversing valve (21), a rubber plate (28) is fixedly installed at, stifled board (20) top fixed mounting has baffle (22), stifled board (20) right-hand member fixed mounting has half gluey ring (29), half gluey ring (29) lateral wall and sealed shell (15) inner wall and well pipe (8) right part lateral wall sliding contact, stifled board (20) bottom lateral wall fixed mounting has spacing piece (30), well pipe (8) bottom right part inner wall seted up with spacing piece (30) complex spout, frame (1) bottom middle part fixed mounting has adapter (23), ball fill (5) outside lower part fixed mounting has switching frame (12), and switching frame (12) are connected with adapter (23) rotation.

2. The automatic adjusting service device for tennis racket swinging training as claimed in claim 1, wherein a sliding seat (10) is fixedly installed at the lower part of the swinging plate (7), a limiting seat (9) matched with the sliding seat (10) is fixedly installed at the lower part of the front side of the bracket (3), and the limiting seat (9) is slidably connected with the sliding seat (10).

3. The automatic adjusting service device for tennis racket swinging training as claimed in claim 1, wherein the top end of the hopper (5) is rotatably installed with a cover plate (4).

4. The automatic adjusting service device for tennis racket swinging training as claimed in claim 1, wherein the right side wall of the top end of the outer frame (1) is provided with an arc-shaped slot matched with the motor (17), and the middle side wall of the top end of the outer frame (1) is provided with a round hole matched with the ball hopper (5).

5. The automatic adjusting service device for tennis racket swinging training as claimed in claim 1, wherein the stopper mainly comprises a stop pin (13), a sliding sleeve (24), a spring (26) and an electromagnet (27), the outer wall of the outer upper part of the sliding sleeve (24) is fixedly connected with the lower side wall of the middle pipe (8), the stop pin (13) is slidably mounted on the inner side of the sliding sleeve (24), the spring (26) is fixedly mounted in the middle of the stop pin (13), the electromagnet (27) is fixedly mounted at the bottom end of the sliding sleeve (24), and the bottom end of the spring (26) is fixedly connected with the top side wall of the electromagnet (27).

6. The automatic adjusting service device for tennis racket swinging training as claimed in claim 1, wherein a sliding opening matched with the blocking plate (22) is formed at the right part of the top end of the middle tube (8), a sealing plate (14) is fixedly embedded at the bottom end of the blocking plate (22), and the side wall of the top end of the sealing plate (14) is tightly contacted with the outer wall of the middle part of the top end of the middle tube (8).

7. The automatic adjusting ball serving device for tennis racket swinging training as claimed in claim 1, wherein a controller (38) is fixedly mounted on the outer wall of the left side of the tennis hopper (5), the controller (38) is electrically connected with the electric cylinder (11), the motor (17), the reversing valve (21), the air pump (25), the electromagnet (27), the angle sensor (34) and the pressure limiting valve (36) through a wire harness, and the controller (38) is electrically connected with an external power supply through a wire harness.