CN203750152U - Ball throwing device used for tennis ball serving action practice - Google Patents

Ball throwing device used for tennis ball serving action practice Download PDF

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Publication number
CN203750152U
CN203750152U CN201420105067.7U CN201420105067U CN203750152U CN 203750152 U CN203750152 U CN 203750152U CN 201420105067 U CN201420105067 U CN 201420105067U CN 203750152 U CN203750152 U CN 203750152U
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CN
China
Prior art keywords
swing arm
ball
tennis
outlet
base
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn - After Issue
Application number
CN201420105067.7U
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Chinese (zh)
Inventor
余竹生
史芙英
刘宇
喻大力
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Shanghai University of Sport
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Shanghai University of Sport
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Publication date
Application filed by Shanghai University of Sport filed Critical Shanghai University of Sport
Priority to CN201420105067.7U priority Critical patent/CN203750152U/en
Application granted granted Critical
Publication of CN203750152U publication Critical patent/CN203750152U/en
Withdrawn - After Issue legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

A ball throwing device used for tennis ball serving action practice comprises a base. A swing rod is connected to the base through a supporting shaft, a rail is arranged in the swing rod, one end of the swing rod is connected with an up-and-down reciprocating driving device, the base is connected with a tennis ball basket through a connecting piece, an outlet is formed in the bottom of the tennis ball basket, the outlet is located above the rail, the lower end of the outlet is provided with a door opening and closing board and the door opening and closing board is connected with a driving mechanism. A plurality of tennis balls are placed in the tennis ball basket; when the other end of the swing rod moves downwards, the door opening and closing board rotates to open the outlet, and a tennis ball falls into the rail of the swing rod; when the other end of the swing rod moves upwards and then stops or moves downwards, the tennis ball rolling to the tail end of the rail is thrown out upwards under the effect of inertia. According to the ball throwing device, the up-and-down reciprocating driving device is used for repeatedly driving the swing rod, the tennis ball basket and the door opening and closing board are used for releasing the tennis balls one by one, the tennis balls at the tail end of the swing rod are thrown out, therefore, the action of throwing the tennis balls upwards repeatedly of an athlete is omitted and the time for actually practicing beating of the athlete is prolonged.

Description

For the ball-projecting device of tennis service action exercise
Technical field:
The utility model relates to mechanical field, relates in particular to athletic sports appliance, particularly automatic casting device, specifically a kind of ball-projecting device for tennis service action exercise.
Background technology:
Tennis is universal competitive events.For tennis beginner, holding bat, serving a ball, bat is three large basic fundamentals, and wherein service is a score technology of unilaterally being arranged by sportsman completely, and in the whole match, successful service technique plays very important effect to decision of a game.Service technique comprise flat service, cutting service and on revolve service, be in one's hands shooting method, toss position, striking point on the ball, bounce-back direction of three kinds of service techniques of different nature is different.The good different three types of GPRS is served a ball and accurately judges that the skyborne drop point of tennis impacts, and needs through repeating and training.Owing to first needing to have the process of a upthrow tennis in service process, the process that is constantly repeated upthrow tennis by sportsman can reduce the time that its actual exercise impacts.
Summary of the invention:
The purpose of this utility model is to provide a kind of ball-projecting device for tennis service action exercise, and the described this ball-projecting device for tennis service action exercise will solve the technical problem that process that prior art sportsman constantly repeats upthrow tennis causes the time decreased that its actual exercise impacts.
This ball-projecting device for tennis service action exercise of the present utility model, comprise a base, wherein, on described base, be fixedly installed a column, the upper end of described column is provided with a back shaft, described back shaft axially vertical with the length direction of column, on back shaft, be provided with a swing arm, between back shaft and column, or between back shaft and swing arm, or be provided with revolute pair between back shaft and swing arm and column, swing arm includes a first end and second end, in swing arm, be provided with along its length a track, described track is between the first end of swing arm and the shaft core position of back shaft, the second end of swing arm is connected with a drive unit up and down, track is provided with a baffle plate at the end at the first end place of swing arm, the upper end of column is fixedly installed a gag lever post, one end of described gag lever post extends in the stroke of swing arm, on base, be connected with a tennis ball railings by connector, described tennis ball railings is funnel-form, the bottom of tennis ball railings is provided with an outlet, described outlet is positioned at the top of swing arm middle orbit, the lower end of outlet is provided with a switch door-plate, described switch door-plate is connected with a driving mechanism.
Further, the driving mechanism that switch door-plate connects is connected with described drive unit up and down.
Further, swing arm is made up of a mobile jib and an extension rod, the length direction of described extension rod overlaps with the length direction of described mobile jib, the first end of swing arm is positioned at one end of extension rod, the other end of extension rod is connected with one end of mobile jib, and track lays respectively on mobile jib and extension rod.
Further, in a tubular form, described track is made up of the tube chamber of swing arm swing arm, and tube chamber is provided with outlet upwards at the first end of swing arm.
Further, described drive unit up and down comprises a motor, described motor is fixedly installed on base, on the output shaft of motor, be connected with a crank by reducing gear, the second end of swing arm and one end of a first connecting rod are hinged, and one end of the other end of described first connecting rod and described crank is hinged.
Further, the outlet at bottom of one side of described switch door-plate and column or swing arm or tennis ball railings is side walls hinged, on switch door-plate, be fixedly connected with a pull bar, one end of one end of described pull bar and a second connecting rod is hinged, and one end of the other end of described second connecting rod and described crank is hinged.
Further, the downside of base is provided with wheel, is provided with hand push frame on base.
Further, the first end of swing arm is greater than the second end of swing arm to the distance in the axle center of back shaft to the distance in the axle center of back shaft.
Further, motor includes a control end, and described control end is connected with a controller.
Further, on base, be provided with power supply.
Operation principle of the present utility model is: in tennis ball railings, place multiple tennises, the tennis in switch gate plate resistance backstop cage falls.Start up and down after drive unit, the first end of swing arm moves down, meanwhile, and the outlet of switch door-plate rotating opening tennis ball railings lower end, when the first end of swing arm moves down into lowermost end, the outlet of tennis ball railings lower end is opened completely, and a tennis is fallen in the track of swing arm, now, the first end of swing arm moves up, meanwhile, switch door-plate starts to cut out the outlet of tennis ball railings lower end, stops that next tennis falls.The first end of swing arm moves past in journey upper, and the tennis orbital motion that falls into track is to the end outlet place of swing arm first end and stopped by baffle plate, and drive unit drives swing arm break-in up and down, and tennis is upwards dished out under effect of inertia.Gag lever post can make swing arm first end on the journey of dividing a word with a hyphen at the end of a line end at once, the initial velocity when increasing tennis and dishing out.The Impact energy of swing arm and gag lever post is absorbed by gag lever post, column.The running speed that regulates the motor in drive unit up and down by controller, the height that can regulate tennis to throw, adapts to different exercise objects.
The utility model and prior art are compared, and its effect is actively with obvious.The utility model utilizes drive unit up and down to repeat to drive swing arm, utilize tennis ball railings and switch door-plate to discharge one by one tennis, the tennis of swing arm end is dished out, exempted sportsman and repeat the action of upthrow tennis, increased the time that the actual exercise of sportsman impacts.
Brief description of the drawings:
Fig. 1 is the structural representation of the ball-projecting device for tennis service action exercise of the present utility model.
Fig. 2 is the partial structurtes schematic diagram of an embodiment of the ball-projecting device for tennis service action exercise of the present utility model.
Detailed description of the invention:
Embodiment 1:
As depicted in figs. 1 and 2, ball-projecting device for tennis service action exercise of the present utility model, comprise a base 11, wherein, on described base 11, be fixedly installed a column 10, the upper end of described column 10 is provided with a back shaft 15, described back shaft 15 axially vertical with the length direction of column 10, on back shaft 15, be provided with a swing arm 3, between back shaft 15 and swing arm 3, be provided with revolute pair, swing arm 3 includes a first end and second end, in swing arm 3, be provided with along its length a track, described track is between the first end of swing arm 3 and the shaft core position of back shaft 15, the second end of swing arm 3 is connected with a drive unit up and down, track is provided with a baffle plate at the end at the first end place of swing arm 3, the upper end of column 10 is fixedly installed a gag lever post 2, one end of described gag lever post 2 extends in the stroke of swing arm 3, on base 11, be connected with a tennis ball railings 1 by connector 17, described tennis ball railings 1 is funnel-form, the bottom of tennis ball railings 1 is provided with an outlet, described outlet is positioned at the top of swing arm 3 middle orbits, the lower end of outlet is provided with a switch door-plate, described switch door-plate is connected with a driving mechanism.
Concrete, one end of gag lever post 2 is provided with clashes into contact head 18.
Further, the driving mechanism that switch door-plate connects is connected with described drive unit up and down.
Further, swing arm 3 is made up of a mobile jib and an extension rod 4, the length direction of described extension rod 4 overlaps with the length direction of described mobile jib, the first end of swing arm 3 is positioned at one end of extension rod 4, the other end of extension rod 4 is connected with one end of mobile jib by adapter sleeve 22, and track lays respectively on mobile jib and extension rod 4.
Further, in a tubular form, described track is made up of the tube chamber of swing arm 3 swing arm 3, and tube chamber is provided with outlet upwards at the first end of swing arm 3.
Further, described drive unit up and down comprises a motor 9, described motor 9 is fixedly installed on base 11, on the output shaft of motor 9, be connected with a crank 23 by reducing gear 16, the second end 5 of swing arm 3 and one end of a first connecting rod 7 are hinged, and one end of the other end of described first connecting rod 7 and described crank 23 is hinged.
Further, one side and the swing arm 3 of described switch door-plate are hinged, on switch door-plate, be fixedly connected with a pull bar 8, one end of described pull bar 8 and one end of a second connecting rod 6 are hinged, and one end of the other end of described second connecting rod 6 and described crank 23 is hinged.
Further, the downside of base 11 is provided with wheel 12, is provided with hand push frame 14 on base 11, includes handrail 13 in hand push frame 14.
Further, the first end of swing arm 3 is greater than the second end of swing arm 3 to the distance in the axle center of back shaft 15 to the distance in the axle center of back shaft 15.
Further, motor 9 includes a control end, and described control end is connected with a controller 25.In controller 25, be provided with parameter display screen 24, control button 28, control button 26 and control button 27.
Further, on base 11, be provided with power supply 21.
Concrete, on base 11, being provided with containment vessel 20, power supply 21, motor 9 and reducing gear 16 are all positioned at containment vessel 20.
The operation principle of the present embodiment is: in tennis ball railings 1, place multiple tennises 19, the tennis 19 in switch gate plate resistance backstop cage 1 falls.Start up and down after drive unit, the first end of swing arm 3 moves down, meanwhile, and the outlet of switch door-plate rotating opening tennis ball railings 1 lower end, when the first end of swing arm 3 moves down into lowermost end, the outlet of tennis ball railings 1 lower end is opened completely, and a tennis 19 is fallen in the track of swing arm 3, now, the first end of swing arm 3 moves up, meanwhile, switch door-plate starts to cut out the outlet of tennis ball railings 1 lower end, stops that next tennis 19 falls.The first end of swing arm 3 moves past in journey upper, and tennis 19 orbital motions that fall into track are to the end outlet place of swing arm 3 first ends and stopped by baffle plate, and drive unit drives swing arm 3 break-ins up and down, and tennis 19 is upwards dished out under effect of inertia.Gag lever post 2 can make swing arm 3 first ends on the journey of dividing a word with a hyphen at the end of a line end at once, the initial velocity when increasing tennis 19 and dishing out.Swing arm 3 is absorbed by gag lever post 2, column 10 with the Impact energy of gag lever post 2.The running speed that regulates the motor 9 in drive unit up and down by controller 25, the height that can regulate tennis 19 to throw, adapts to different exercise objects.

Claims (10)

1. the ball-projecting device for tennis service action exercise, comprise a base, it is characterized in that: on described base, be fixedly installed a column, the upper end of described column is provided with a back shaft, described back shaft axially vertical with the length direction of column, on back shaft, be provided with a swing arm, between back shaft and column, or between back shaft and swing arm, or be provided with revolute pair between back shaft and swing arm and column, swing arm includes a first end and second end, in swing arm, be provided with along its length a track, described track is between the first end of swing arm and the shaft core position of back shaft, the second end of swing arm is connected with a drive unit up and down, track is provided with a baffle plate at the end at the first end place of swing arm, the upper end of column is fixedly installed a gag lever post, one end of described gag lever post extends in the stroke of swing arm, on base, be connected with a tennis ball railings by connector, described tennis ball railings is funnel-form, the bottom of tennis ball railings is provided with an outlet, described outlet is positioned at the top of swing arm middle orbit, the lower end of outlet is provided with a switch door-plate, described switch door-plate is connected with a driving mechanism.
2. the ball-projecting device for tennis service action exercise as claimed in claim 1, is characterized in that: the driving mechanism that switch door-plate connects is connected with described drive unit up and down.
3. the ball-projecting device for tennis service action exercise as claimed in claim 1, it is characterized in that: swing arm is made up of a mobile jib and an extension rod, the length direction of described extension rod overlaps with the length direction of described mobile jib, the first end of swing arm is positioned at one end of extension rod, the other end of extension rod is connected with one end of mobile jib, and track lays respectively on mobile jib and extension rod.
4. the ball-projecting device for tennis service action exercise as claimed in claim 1, is characterized in that: in a tubular form, described track is made up of the tube chamber of swing arm swing arm, and tube chamber is provided with outlet upwards at the first end of swing arm.
5. the ball-projecting device for tennis service action exercise as claimed in claim 1, it is characterized in that: described drive unit up and down comprises a motor, described motor is fixedly installed on base, on the output shaft of motor, be connected with a crank by reducing gear, the second end of swing arm and one end of a first connecting rod are hinged, and one end of the other end of described first connecting rod and described crank is hinged.
6. the ball-projecting device for tennis service action exercise as claimed in claim 5, it is characterized in that: the outlet at bottom of a side of described switch door-plate and column or swing arm or tennis ball railings is side walls hinged, on switch door-plate, be fixedly connected with a pull bar, one end of one end of described pull bar and a second connecting rod is hinged, and one end of the other end of described second connecting rod and described crank is hinged.
7. the ball-projecting device for tennis service action exercise as claimed in claim 1, is characterized in that: the downside of base is provided with wheel, is provided with hand push frame on base.
8. the ball-projecting device for tennis service action exercise as claimed in claim 1, is characterized in that: the first end of swing arm is greater than the second end of swing arm to the distance in the axle center of back shaft to the distance in the axle center of back shaft.
9. the ball-projecting device for tennis service action exercise as claimed in claim 5, is characterized in that: motor includes a control end, and described control end is connected with a controller.
10. the ball-projecting device for tennis service action exercise as claimed in claim 5, is characterized in that: on base, be provided with power supply.
CN201420105067.7U 2014-03-10 2014-03-10 Ball throwing device used for tennis ball serving action practice Withdrawn - After Issue CN203750152U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420105067.7U CN203750152U (en) 2014-03-10 2014-03-10 Ball throwing device used for tennis ball serving action practice

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420105067.7U CN203750152U (en) 2014-03-10 2014-03-10 Ball throwing device used for tennis ball serving action practice

Publications (1)

Publication Number Publication Date
CN203750152U true CN203750152U (en) 2014-08-06

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Country Status (1)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103801066A (en) * 2014-03-10 2014-05-21 上海体育学院 Ball throwing device for tennis service practices
CN104474683A (en) * 2014-12-16 2015-04-01 孙传莉 Robot tennis serving device
CN108579052A (en) * 2018-04-27 2018-09-28 傅源彬 A kind of athletic training ball projecting device for tennis
CN109260681A (en) * 2018-11-22 2019-01-25 杨玉军 Ball serving device is used in a kind of teaching of volleyball training
CN110164257A (en) * 2019-05-31 2019-08-23 吉林化工学院 A kind of discrete variable apparatus for demonstrating

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103801066A (en) * 2014-03-10 2014-05-21 上海体育学院 Ball throwing device for tennis service practices
CN103801066B (en) * 2014-03-10 2015-12-16 上海体育学院 A kind of ball-projecting device for tennis service action exercise
CN104474683A (en) * 2014-12-16 2015-04-01 孙传莉 Robot tennis serving device
CN108579052A (en) * 2018-04-27 2018-09-28 傅源彬 A kind of athletic training ball projecting device for tennis
CN109260681A (en) * 2018-11-22 2019-01-25 杨玉军 Ball serving device is used in a kind of teaching of volleyball training
CN109260681B (en) * 2018-11-22 2020-10-30 嵊州市森拓新材料有限公司 Service device is used in volleyball training teaching
CN110164257A (en) * 2019-05-31 2019-08-23 吉林化工学院 A kind of discrete variable apparatus for demonstrating

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
AV01 Patent right actively abandoned

Granted publication date: 20140806

Effective date of abandoning: 20151216

C25 Abandonment of patent right or utility model to avoid double patenting