CN207445527U

CN207445527U - A kind of tennis ball serving device for physical education training

Info

Publication number: CN207445527U
Application number: CN201721047627.8U
Authority: CN
Inventors: 黄帅
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-08-21
Filing date: 2017-08-21
Publication date: 2018-06-05
Anticipated expiration: 2027-08-21

Abstract

The utility model discloses a kind of tennis ball serving device for physical education training, including support construction and ball serving device；It is characterized in that, support construction includes pedestal, mounting bracket, bearing block, swivel plate, semicircular gear, horizontal rotating shaft, screw, driving motor, support feet, the mounting bracket is respectively and fixedly connected to pedestal both sides, the bearing block is fixed on mounting bracket, and the swivel plate top is fixedly installed vertical shaft；The vertical shaft set is on bearing block, the semicircular gear is welded on the lower face of swivel plate, the utility model provides a kind of tennis ball serving device for physical education training, it is substantially fixed motionless that the utility model solves traditional service robot, it can only fine-tuned emission cylinder angle, it can not achieve angular adjustment with a wide range of precise, the utility model realizes that service robot is a wide range of and angle is accurately adjusted, convenient for control, in actual use, using effect is very good, is conducive to routing motion person and realizes different angle training.

Description

A kind of tennis ball serving device for physical education training

Technical field

The utility model is related to sports training equipment technical fields, are specifically a kind of tennis hair for physical education training Ball device.

Background technology

Tennis is the sports of a grace and fierceness, and the whole world prevailing is referred to as second-biggest-in-the-world ball game, It is one of Olympic Games big event.However in tennis teaching, for sportsman service training generally require coach or other Team member carries out manually serving a ball or buying service robot, but service robot majority function on the market is relatively more fixed now, it is difficult to mould Intend flexible service pattern of the opponent in angle, and service robot does not adjust the structure of height, it is impossible to adapt to the hair of different heights The operation of ball personnel, and it is complicated, price is relatively expensive.

In conclusion, there is the flexible service being difficult to realize in different angle, it is impossible to adapt in service robot of the prior art The operation of the service personnel of different heights, it is expensive, it is complicated；In addition traditional service robot is substantially fixed motionless, can only Fine-tuned emission cylinder angle, it is impossible to realize angular adjustment with a wide range of precise.

Utility model content

The purpose of this utility model is to provide a kind of tennis ball serving device for physical education training, to solve the above-mentioned back of the body The problem of being proposed in scape technology.

To achieve the above object, the utility model provides following technical solution：

A kind of tennis ball serving device for physical education training, including support construction and ball serving device；Support construction includes Pedestal, mounting bracket, bearing block, swivel plate, semicircular gear, horizontal rotating shaft, screw, driving motor, support feet, the mounting bracket For two, two mounting brackets are respectively and fixedly connected to pedestal both sides, and the bearing block is fixed on mounting bracket, the swivel plate top End is fixedly installed vertical shaft, and for the vertical shaft set on bearing block, the semicircular gear is welded on swivel plate Lower face, the horizontal rotating shaft both ends are connected to by bearing on mounting bracket, and the screw is fixed in the middle part of horizontal rotating shaft, and Screw is engaged with semicircular gear, and the driving motor is fixed on mounting bracket, and driving motor output shaft connects with horizontal rotating shaft It connects；The swivel plate upper surface is connected with support feet, and the ball serving device includes spiral case, and the spiral case is spherical shell, snail Shell bottom is fixed on by supporting rod in support feet, and the spiral case front end has been horizontally disposed with service cylinder, the internal diameter of the service cylinder More than one times of be less than tennis diameter twice of tennis diameter, hopper is provided at the top of the spiral case, the feed hopper bottom has Barrel and the barrel of hopper are penetrated through to service cylinder, and the internal diameter of the barrel of hopper is more than one times of tennis diameter Less than twice of tennis diameter, tennis falls into service cylinder by net head, and cylinder of serving a ball is positioned at one end of scroll outer Service mouth, ball serving device include being arranged on the service shaft inside spiral case, are fixed on outside the ball beater and spiral case in service shaft The service motor that side is connected with service rotating shaft transmission, ball beater include hitting bar, and the bar that hits is fixed by connecting rod and service shaft Connection, the axial line for shaft of serving a ball and the axial line of service cylinder are antarafacial vertical line, and handle is provided on cylinder of serving a ball.

As further program of the utility model：The pedestal is square plate, and the pedestal passes through fixed spiral shell Bolt is fixed in ground or rack.

As the utility model further scheme：Steering speed change is provided between the driving motor and horizontal rotating shaft Device.

As the utility model further scheme：The semicircular gear is helical gear.

As the utility model further scheme：Described one end for being located in spiral case of service cylinder open up it is jagged, it is scarce The width of mouth is less than the diameter of a tennis.

As the utility model further scheme：Being provided in the service cylinder can be by the limit convex of tennis /V It rises, the limit protrusion is located on the extended line of the barrel of hopper, and limit protrusion is provided with 4 and is symmetrically distributed in hair altogether The both sides of the notch of ball cylinder；It is just surrounded among 4 limit protrusions by limiting section of the tennis /V in fixed position.

As the utility model further scheme：The spiral case bottom is fixed on by telescopic rod in support feet.

As the utility model further scheme：The bar that hits is curved rod, and end set has rubber pad.

Compared with prior art, the beneficial effects of the utility model are：The utility model provides a kind of for physical education Trained tennis ball serving device, structure novel；The utility model can be used for the ball transmitting such as tennis, table tennis, only need basis Need the diameter of the barrel of adjustment service cylinder and hopper；The utility model is simple in structure, can realize different angle On flexible service, can by adjustable telescopic rod adjust height to adapt to the demand of different height users, cost is relatively low；This It is substantially fixed motionless that utility model solves traditional service robot, can only fine-tuned emission cylinder angle, it is impossible to realize with a wide range of precise Angular adjustment, the utility model realizes that service robot is a wide range of and angle is accurately adjusted, convenient for control, in actual use, Using effect is very good, is conducive to routing motion person and realizes different angle training.

Description of the drawings

Fig. 1 is for the structure diagram of the tennis ball serving device of physical education training.

Fig. 2 is spiral case and service barrel structure schematic diagram in the tennis ball serving device for physical education training.

Fig. 3 is cylinder schematic cross-sectional view of serving a ball in the tennis ball serving device for physical education training.

Specific embodiment

The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out It clearly and completely describes, it is clear that the described embodiments are only a part of the embodiments of the utility model rather than whole Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are without making creative work All other embodiments obtained shall fall within the protection scope of the present invention.

Please refer to Fig.1~3, in the utility model embodiment, a kind of tennis ball serving device for physical education training, including Support construction and ball serving device；Support construction includes pedestal 1, mounting bracket 2, bearing block 4, swivel plate 16, semicircular gear 3, water Flat turn axis 19, screw 20, driving motor 17, support feet 5, the pedestal 1 are square plate, and the pedestal 1 passes through fixation Bolt is fixed in ground or rack；The mounting bracket 2 is two, and two mounting brackets 2 are respectively and fixedly connected to 1 both sides of pedestal, described Bearing block 4 be fixed on mounting bracket 2,16 top of swivel plate is fixedly installed vertical shaft 15, the vertical shaft 15 are sleeved on bearing block 4, and the semicircular gear 3 is welded on the lower face of swivel plate 16,19 liang of the horizontal rotating shaft End is connected to by bearing on mounting bracket 2, and the screw 20 is fixed in 19 middle part of horizontal rotating shaft, and screw 20 and semicircular gear 3 engagements, the driving motor 17 is fixed on mounting bracket 2, and 17 output shaft of driving motor is connected with horizontal rotating shaft 19；Described 16 upper surface of swivel plate is connected with support feet 5, and the ball serving device includes spiral case 6, and the spiral case 6 is spherical shell, 6 bottom of spiral case Portion is fixed on by telescopic rod 14 in support feet 5, is easily installed, better than being directly fixed on swivel plate 16；The driving motor It is provided between 17 and horizontal rotating shaft 19 and turns to speed changer 18, speed changer 18 is turned to while electronic-controlled power steering is carried out, by power Speed change can greatly improve torsional forces；The semicircular gear 3 is helical gear, and helical gear promotes semicircular gear 3 convenient for screw 20 It rotates；6 front end of spiral case has been horizontally disposed with service cylinder 7, and the internal diameter of the service cylinder 7 is more than one times of 9 diameter of tennis and is less than Twice of 9 diameter of tennis, 6 top of the spiral case are provided with hopper 8, and 8 bottom of hopper has barrel and hopper 8 Barrel is penetrated through to service cylinder 7, and the internal diameter of the barrel of hopper 8 be more than 9 diameter of tennis one times is less than 9 diameter of tennis Twice, tennis 9 falls into cylinder 7 of serving a ball by 9 shape part of tennis, and one end being located at outside spiral case 6 of service cylinder 7 is service mouth, is sent out One end that ball cylinder 7 is located in spiral case 6 opens up jagged 21, and the width of notch 21 is less than the diameter of a tennis 9, serves a ball in cylinder 7 Being provided with can be located at the limit protrusion 10 of 9 /V of tennis, the limit protrusion 10 on the extended line of the barrel of hopper 8, Limit protrusion 10 is provided with 4 and is symmetrically distributed in the both sides of the notch 21 of service cylinder 7 altogether；Among 4 limit protrusions 10 just It surrounds limiting section of 9 /V of tennis in fixed position；Ball serving device includes being arranged on the service shaft 13 inside spiral case 6, Gu The service motor being sequentially connected on the outside of the ball beater and spiral case being scheduled in service shaft 13 with service shaft 13, ball beater include arc Shape hits bar 11, and arc, which hits 11 end set of bar, rubber pad, and the arc hits bar 11 and fixed by connecting rod 12 and service shaft 13 Connection, the axial line of the axial line and service cylinder 7 of shaft 13 of serving a ball is antarafacial vertical line, should when tennis 9 is located at limiting section Tennis 9 is located at arc and hits in the rotating path of bar 11, and arc hits bar 11 and hits the hitting point of tennis 9 as 9 heart of tennis horizontally outward Extend the interface point with 9 face of tennis, handle 7-1, conveniently adjusting angle and height, service motor connection are provided on cylinder 7 of serving a ball 220V power supplys.

The operation principle of the utility model is：In use, service electrical power, drives service shaft 13 and then drives connection Ball beater in service shaft 13, ball beater obtain kinetic energy quick rotation, impact tennis, since tennis 9 is flexible, receive punching It hits deformation to cross limiting section and go out service cylinder, service is completed；When needing to adjust angle, the utility model passes through driving motor 17 drive horizontal rotating shafts 19 rotate, and turn to speed changer 18 while electronic-controlled power steering is carried out, and power speed changing can greatly improve Torsional forces, the horizontal rotating shaft 19 of rotation drive screw 20 to rotate, and the screw 20 of rotation drives semicircular gear rotation, so as to control 16 rotation angle of swivel plate controls the rotating cycle of driving motor 17, you can the rotation angle of control swivel plate 16, and then control The angle of emitter, the rotation control precision first of this mode is high, and convenient for control, in actual use, using effect is non- Chang Hao；The utility model can be used for the ball transmitting such as tennis, table tennis, need to only adjust service cylinder 7 and hopper 8 as needed Barrel diameter；The utility model is simple in structure, can realize the flexible service in different angle, can pass through Adjustable telescopic rod 14 adjusts height to adapt to the demand of different height users, and cost is relatively low.

It is obvious to a person skilled in the art that the utility model is not limited to the details of above-mentioned exemplary embodiment, and And in the case of the spirit or essential attributes without departing substantially from the utility model, it can realize that this practicality is new in other specific forms Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this practicality is new The scope of type is indicated by the appended claims rather than the foregoing description, it is intended that will fall containing in the equivalent requirements of the claims All changes in justice and scope are embraced therein.Any reference numeral in claim should not be considered as limitation Involved claim.

Moreover, it will be appreciated that although this specification is described in terms of embodiments, but not each embodiment is only wrapped Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should Using specification as an entirety, the technical solutions in each embodiment can also be properly combined, forms those skilled in the art It is appreciated that other embodiment.

Claims

1. a kind of tennis ball serving device for physical education training, including support construction and ball serving device；It is characterized in that, support Structure includes pedestal, mounting bracket, bearing block, swivel plate, semicircular gear, horizontal rotating shaft, screw, driving motor, support feet, institute Mounting bracket is stated as two, two mounting brackets are respectively and fixedly connected to pedestal both sides, and the bearing block is fixed on mounting bracket, described Swivel plate top is fixedly installed vertical shaft, and on bearing block, the semicircular gear is welded on the vertical shaft set The lower face of swivel plate, the horizontal rotating shaft both ends are connected to by bearing on mounting bracket, and the screw is fixed in horizontal turn In the middle part of axis, and screw is engaged with semicircular gear, and the driving motor is fixed on mounting bracket, and driving motor output shaft and water Flat turn axis connection；The swivel plate upper surface is connected with support feet, and the ball serving device includes spiral case, and the spiral case is spherical shape Housing, spiral case bottom are fixed on by supporting rod in support feet, and the spiral case front end has been horizontally disposed with service cylinder, the service cylinder Internal diameter be more than one times of tennis diameter be less than tennis diameter twice, be provided with hopper, the hopper bottom at the top of the spiral case Portion has barrel and the barrel of hopper is penetrated through to service cylinder, and the internal diameter of the barrel of hopper is more than tennis diameter One times be less than twice of tennis diameter, tennis falls into service cylinder by net head, and cylinder of serving a ball is located at scroll outer One end is service mouth, and ball serving device includes being arranged on service shaft inside spiral case, the ball beater that is fixed in service shaft and The service motor being connected on the outside of spiral case with service rotating shaft transmission, ball beater include hitting bar, and the bar that hits is turned by connecting rod and service Axis is fixedly connected, and the axial line for shaft of serving a ball and the axial line of service cylinder are antarafacial vertical line, and handle is provided on cylinder of serving a ball.

2. the tennis ball serving device according to claim 1 for physical education training, which is characterized in that the pedestal is Square plate, the pedestal are fixed in by fixing bolt on ground or rack.

3. the tennis ball serving device according to claim 1 for physical education training, which is characterized in that the driving motor Steering speed changer is provided between horizontal rotating shaft.

4. the tennis ball serving device according to claim 1 for physical education training, which is characterized in that the semi-circular teeth It takes turns as helical gear.

5. the tennis ball serving device according to claim 1 for physical education training, which is characterized in that the service cylinder position Opened up in one end in spiral case jagged, the width of notch is less than the diameter of a tennis.

6. the tennis ball serving device according to claim 5 for physical education training, which is characterized in that in the service cylinder Being provided with can be located at the limit protrusion of tennis /V, the limit protrusion on the extended line of the barrel of hopper, limit convex Play the both sides for the notch for being provided with 4 altogether and being symmetrically distributed in service cylinder；It is just surrounded among 4 limit protrusions by tennis /V Limiting section in fixed position.

7. the tennis ball serving device according to claim 1 for physical education training, which is characterized in that the spiral case bottom It is fixed on by telescopic rod in support feet.

8. the tennis ball serving device according to claim 1 for physical education training, which is characterized in that the bar that hits is arc Shape bar, and end set has rubber pad.