CN107596664B - A kind of sport tennis service device - Google Patents
A kind of sport tennis service device Download PDFInfo
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- CN107596664B CN107596664B CN201710929907.XA CN201710929907A CN107596664B CN 107596664 B CN107596664 B CN 107596664B CN 201710929907 A CN201710929907 A CN 201710929907A CN 107596664 B CN107596664 B CN 107596664B
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- block
- funnel
- shank
- service pipe
- sliding rail
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Abstract
The present invention relates to a kind of ball serving device more particularly to a kind of sport tennis service devices.The technical problem to be solved in the present invention is to provide a kind of low manufacture costs, are adjustable the angle of tennis sending, moreover it is possible to a large amount of ball is put into togerther, without being put into one by one, and time saving and energy saving sport tennis service device.It in order to solve the above-mentioned technical problem, further include having regulating device, regulating device includes vertical bar etc.；Transverse slat is equipped with below bottom plate, transverse slat top left side is equipped with vertical bar, vertical bar top is equipped with switch block in such a way that pin connects, it is connect at the top of switch block with bottom base plate left side, transverse slat top right side is equipped with bearing block, is equipped with nut at the top of bearing block, nut is connect with the bearing in bearing block, it is fitted with fixed block at left and right sides of nut lateral surface, fixed block is arranged symmetrically.The present invention can be reminded and be issued on people polu pony by alarm set, and prevent people from being injured, and regulating device, be adjustable the angle of tennis sending.
Description
Technical field
The present invention relates to a kind of ball serving device more particularly to a kind of sport tennis service devices.
Background technique
Sport: being a kind of Social Culture phenomenon of complexity, it is raw according to human body using body and intellection as basic means
It is regular that long development, technical ability are formed and function improves etc., reach promote full development, improve physical fitness and overall education level,
Build up health with improve locomitivity, mode of making the life better with improve the quality of living it is a kind of conscious, purposeful, organized
Social activities.With the expansion of international association, the scale and level of sports business development have been to measure country, a social development
A progressive important symbol also becomes the important means of diplomacy and cultural exchanges between country.Sport can be divided into sport for all, specially
The types such as industry sport, school physical education.Including sports culture, physical education, sports, athletic competition, sports equipment, sports group
It knits, the lot of essential factors such as sports science technology.
When tennis training, when being trained together such as nobody, it can be all trained using service robot, and existing tennis service
Machine, cost of manufacture is high, is not adjustable the angle of tennis sending, it is also necessary to one by one ball is put into sending, it is time-consuming and laborious, therefore
It needs to research and develop a kind of low manufacture cost, is adjustable the angle of tennis sending, moreover it is possible to be put into togerther a large amount of ball, without one
A to be put into, time saving and energy saving sport tennis service device.
Summary of the invention
(1) technical problems to be solved
For the present invention in order to overcome existing tennis serve machine, cost of manufacture is high, is not adjustable the angle of tennis sending, also needs
Ball to be put into sending one by one, time-consuming and laborious disadvantage, the technical problem to be solved in the present invention is to provide one kind to be fabricated to
This is low, is adjustable the angle of tennis sending, moreover it is possible to a large amount of ball is put into togerther, it is time saving and energy saving without being put into one by one
Sport tennis service device.
(2) technical solution
In order to solve the above-mentioned technical problems, the present invention provides such a sport tennis service device, include bottom plate,
Support rod, ball serving device, shaking device and funnel, bottom plate top right side are equipped with support rod, middle part and bottom plate on front side of support rod
Ball serving device is equipped between top left side, supporting bar top is equipped with funnel, and funnel is located above ball serving device, funnel and service
Device connection, bottom plate top left side are equipped with shaking device, and the vibration component of shaking device is located on the left of funnel.
Preferably, ball serving device includes electronic reel, bracing wire, strut, sticks up bar, the first sliding rail, the first sliding block, first
Spring, the first shank, the first skewback, service pipe, guide sleeve, motion bar, second spring, push plate, baffle and the first fixture block, support rod
Service pipe is installed between bottom plate top left side in the middle part of front side, service pipe is to be obliquely installed, it is connect at the top of service pipe with funnel,
Be connected in service pipe and funnel, guide sleeve is installed among bottom in service pipe, be equipped with motion bar in guide sleeve, motion bar in guide sleeve
It is slidably matched, motion bar right end is equipped with push plate, and push plate bottom is contacted with bottom in service pipe, on the right side of push plate left side and guide sleeve
It is connected with second spring between face, baffle is installed at the top of push plate, is contacted at the top of baffle with the discharge port of funnel, baffle top left
Side is equipped with the first fixture block, and bottom left is equipped with strut in service pipe, and strut top is equipped with the first sliding rail, and the first sliding rail is right
Side and funnel outer left side lower part connects, and the first sliding rail is equipped with the first sliding block engaged therewith, on the first sliding block right side
It is connected with the first spring between portion and the outer left side lower part of funnel, the first slider bottom is equipped with the first shank, the first shank position
Above the first fixture block, the first shank and the first fixture block cooperate, and the first skewback, strut right side are equipped among the first shank bottom
Top, which is equipped with, sticks up bar, sticks up bar and is located on the left of the first skewback, bottom left is equipped with electronic reel, electronic coiling in service pipe
Wheel is located on the left of strut, is wound with bracing wire on electronic reel, bracing wire tail end is connect with the first sliding block left side top.
Preferably, shaking device includes pillar, cross bar, first motor, cam and contact block, the installation of bottom plate top left side
There is pillar, pillar is located on the left of service pipe, and pillar top is equipped with cross bar, and cross bar right end is equipped with first motor, first motor
Output shaft cam is connected with by shaft coupling, cam is located on the left of funnel, and funnel is equipped with contact block in the middle part of outer left side inclined-plane,
Contact block is located at cam upper right side.
It preferably, further include having regulating device, regulating device includes vertical bar, switch block, bearing block, nut, fixed block, silk
Bar and transverse slat, bottom plate lower section are equipped with transverse slat, and transverse slat top left side is equipped with vertical bar, and vertical bar top is pacified in such a way that pin connects
It equipped with switch block, is connect at the top of switch block with bottom base plate left side, transverse slat top right side is equipped with bearing block, is equipped at the top of bearing block
Nut, nut are connect with the bearing in bearing block, and fixed block is fitted at left and right sides of nut lateral surface, and fixed block is symmetrically to set
It sets, screw rod is equipped in nut, screw mandrel top is connect in such a way that pin connects with bottom base plate right side.
Preferably, further include having alarm set, alarm set include bearing piece, the second sliding rail, the second sliding block, spring base,
Third spring, the second fixture block, striking head, small bell, the second shank, the second skewback and horizontal block, the first sliding rail top left side are equipped with
Bearing piece, bearing piece top are equipped with the second sliding rail, and the second sliding rail right side is connect with funnel left side lower part, and the second sliding rail is equipped with
Second sliding block engaged therewith, the second sliding block are slidably matched with the second sliding rail, are equipped with the second fixture block on the right side of the second slider bottom,
Second fixture block right side is equipped with striking head, and the second sliding rail bottom right is equipped with small bell, and small bell is located on the right side of striking head, and second
Sliding rail top left side is equipped with spring base, and third spring, the second sliding rail bottom are connected between spring base and the second sliding block left side
Horizontal block is installed, horizontal block bottom right is inclined-plane, and the first slider top is equipped with the second shank, and the second shank is located at the on the left of portion
Below two fixture blocks, the second shank is engaged with the second fixture block, and the second shank top center is equipped with the second skewback.
It preferably, further include having bracket and weather shield, funnel is equipped with bracket, and cantilever tip is equipped with weather shield,
Weather shield is located at right above funnel.
Preferably, further include having dustproof cover and rubber pad, be equipped with dustproof cover on the right side of service pipe, dustproof cover left side top with
The connection of service pipe right upper portion, dustproof cover are equipped with rubber pad among left side.
Preferably, the material of bottom plate is Q235 steel.
Preferably, the material of service pipe is stainless steel.
Working principle: being operated first personnel and tennis be put into funnel, restarts shaking device, shaking device is in funnel
Tennis shaken, and then flow into tennis preferably in ball serving device, operator can start ball serving device, Jin Erfa
Ball issues tennis, and trainer can receive to the tennis of sending.When it is not necessary that ball serving device can be closed when playing tennis
And shaking device.
Because ball serving device includes electronic reel, bracing wire, strut, sticks up bar, the first sliding rail, the first sliding block, the first bullet
Spring, the first shank, the first skewback, service pipe, guide sleeve, motion bar, second spring, push plate, baffle and the first fixture block, before support rod
Service pipe is installed, service pipe is to be obliquely installed, and connect, sends out with funnel at the top of service pipe between middle side part and bottom plate top left side
It is connected in bulb and funnel, guide sleeve is installed among bottom in service pipe, motion bar is equipped in guide sleeve, is slided in motion bar and guide sleeve
Dynamic cooperation, motion bar right end are equipped with push plate, and push plate bottom is contacted with bottom in service pipe, push plate left side and guide sleeve right side
Between be connected with second spring, baffle is installed at the top of push plate, is contacted at the top of baffle with the discharge port of funnel, baffle top left side
First fixture block is installed, bottom left is equipped with strut in service pipe, and strut top is equipped with the first sliding rail, the first sliding rail right side
Face is connect with the outer left side lower part of funnel, and the first sliding rail is equipped with the first sliding block engaged therewith, the first sliding block right side top
With the first spring is connected with outside funnel between the lower part of left side, the first slider bottom is equipped with the first shank, and the first shank is located at
Above first fixture block, the first shank and the first fixture block cooperate, and are equipped with the first skewback among the first shank bottom, on strut right side
Portion, which is equipped with, sticks up bar, sticks up bar and is located on the left of the first skewback, bottom left is equipped with electronic reel, electronic reel in service pipe
On the left of strut, it is wound with bracing wire on electronic reel, bracing wire tail end is connect with the first sliding block left side top, when tennis is located at
When in funnel, operator can start electronic reel reversion, and bracing wire pulls the first sliding block to be moved to the left, and the first spring is drawn
It stretches, the first sliding block, which is moved to the left, drives the first shank to be moved to the left, and then the first shank drives baffle to the left by the first fixture block
Mobile, baffle, which is moved to the left, drives push plate to be moved to the left, and push plate, which is moved to the left, drives motion bar to be moved to the left, second spring pressure
Contracting, when baffle, which is moved to the left, not to be blocked the discharge port of funnel, tennis is fallen in service pipe, and tennis is contacted with push plate, into
And when the first skewback and when sticking up bar and contacting, sticking up bar moves up the first skewback, and then the first shank is driven to move up, and first
Shank, which moves up, not to be contacted with the first fixture block, because of the effect of second spring, push plate move right drive baffle move right by
The discharge port of funnel blocks, while tennis being driven to move right, and then tennis is projected by service pipe, and trainer can be to hair
Tennis out carries out training of receiving, and when tennis issues, operator can start electronic reel and rotate forward, and bracing wire is relaxed,
Because of the effect of the first spring, the first sliding block, which moves right, drives the first shank to move right recovery to original position, the first shank and the
One fixture block, which is engaged, to be caught on.Aforesaid operations repeatedly can serve a ball to a large amount of tennis.
Because shaking device includes pillar, cross bar, first motor, cam and contact block, bottom plate top left side is equipped with
Pillar, pillar are located on the left of service pipe, and pillar top is equipped with cross bar, and cross bar right end is equipped with first motor, first motor
Output shaft is connected with cam by shaft coupling, and cam is located on the left of funnel, and funnel is equipped with contact block in the middle part of outer left side inclined-plane, connects
Contact block is located at cam upper right side, and when tennis is located in funnel, operator can start first motor rotation, and first motor turns
Dynamic band moving cam rotates, and cam rotation is contacted with contact block, and then cam rotation shakes funnel by contact block, funnel
Vibration shakes tennis, and then tennis is enable preferably to fall in service pipe, will not block the discharge port of funnel.When
When without issuing tennis, first motor can be closed.
Because further including having regulating device, regulating device includes vertical bar, switch block, bearing block, nut, fixed block, screw rod
And transverse slat, bottom plate lower section are equipped with transverse slat, transverse slat top left side is equipped with vertical bar, and vertical bar top is installed in such a way that pin connects
There is switch block, connect at the top of switch block with bottom base plate left side, transverse slat top right side is equipped with bearing block, is equipped with spiral shell at the top of bearing block
Mother, nut are connect with the bearing in bearing block, and fixed block is fitted at left and right sides of nut lateral surface, and fixed block is symmetrically to set
It sets, screw rod is equipped in nut, screw mandrel top is connect in such a way that pin connects with bottom base plate right side, when needs are with different angles
When degree issues tennis, operator can twist nut positive and negative rotation by fixed block, and nut positive and negative rotation drives screw rod to turn
It is dynamic, and then screw rod is moved up and down by nut, screw rod, which moves up and down, drives bottom plate to move up and down, and then drives bottom plate with upper-part
It moves up and down, when service pipe is moved up and down to the angle of demand, can stop twisting nut, tennis is issued.In this way, issuing
The tennis of different angle can training effect to trainer it is more preferable.
Because further including having alarm set, alarm set includes bearing piece, the second sliding rail, the second sliding block, spring base, third
Spring, the second fixture block, striking head, small bell, the second shank, the second skewback and horizontal block, the first sliding rail top left side are equipped with bearing piece,
The second sliding rail is installed at the top of bearing piece, the second sliding rail right side is connect with funnel left side lower part, and the second sliding rail is equipped with and it
Second sliding block of cooperation, the second sliding block is slidably matched with the second sliding rail, and the second slider bottom right side is equipped with the second fixture block, and second
Fixture block right side is equipped with striking head, and the second sliding rail bottom right is equipped with small bell, and small bell is located on the right side of striking head, the second sliding rail
Top left side is equipped with spring base, and third spring is connected between spring base and the second sliding block left side, and the second sliding rail bottom is left
Side is equipped with horizontal block, and horizontal block bottom right is inclined-plane, and the first slider top is equipped with the second shank, and the second shank is located at the second card
Below block, the second shank is engaged with the second fixture block, and the second shank top center is equipped with the second skewback, when bracing wire pulling the
When one sliding block is moved to the left, the first sliding block drives the second shank to be moved to the left simultaneously, and the second shank moves left through the second card
Block drives the second sliding block to be moved to the left, third spring-compressed, and when the second skewback and horizontal block contact of incline plane, horizontal block makes the second shank
It moves down and is not contacted with the second fixture block, because of the effect of third spring, the second sliding block moves right to be struck by the drive of the second fixture block
It taps the head and moves right, striking head moves right to be contacted with small bell, and then small bell sounds and reminds trainer's tennis that will send out at once
Out.When tennis issues, the first sliding block, which moves right, drives the second shank to move right recovery to original position, and then the second shank
It is engaged with the second fixture block.In this way, trainer can be prevented not look to cause to be injured by a crashing object by tennis.
Because further including having bracket and weather shield, funnel is equipped with bracket, and cantilever tip is equipped with weather shield, keeps off the rain
Plate is located at right above funnel, and weather shield can block foreign debris and rainwater, and then prevent rainwater from falling to funnel and soak tennis
It is wet that tennis is caused to damage.
Because further including having dustproof cover and rubber pad, dustproof cover, dustproof cover left side top and hair are equipped on the right side of service pipe
The connection of bulb right upper portion, dustproof cover are equipped with rubber pad among left side, and when tennis issues, tennis is contacted with rubber pad will
Dustproof cover is opened, and because gravity influences, dustproof cover is closed.Dustproof cover can prevent foreign debris from falling to the pipe plug that will serve a ball in service pipe
Plug, and cause tennis that cannot issue.
Because the material of bottom plate is Q235 steel, the load-bearing capacity of Q235 steel is strong, acidproof corrosion-resistant, increases the use of bottom plate
Service life.
Because the material of service pipe is stainless steel, stainless steel corrosion resistance and acid resistance are strong, make the service life of service pipe
It is longer.
(3) beneficial effect
The present invention can be reminded and be issued on people polu pony by alarm set, and prevent people from being injured, and adjust dress
It sets, is adjustable the angle of tennis sending, and the training that allows one to the tennis of different angle is carried out to receive, reach cost of manufacture
It is low, it is adjustable the angle of tennis sending, moreover it is possible to a large amount of ball is put into togerther, without being put into one by one, time saving and energy saving effect
Fruit.
Detailed description of the invention
Fig. 1 is schematic view of the front view of the invention.
Fig. 2 is the schematic view of the front view of ball serving device of the present invention.
Fig. 3 is the schematic view of the front view of shaking device of the present invention.
Fig. 4 is the schematic view of the front view of regulating device of the present invention.
Fig. 5 is the schematic view of the front view of alarm set of the present invention.
Fig. 6 is the first part schematic view of the front view of the invention.
Fig. 7 is second of part schematic view of the front view of the invention.
The label in accompanying drawing is: 1- bottom plate, 2- support rod, 3- ball serving device, the electronic reel of 301-, 302- bracing wire,
303- strut, 304- stick up bar, the first sliding rail of 305-, the first sliding block of 306-, the first spring of 307-, the first shank of 308-, 309-
One skewback, 310- service pipe, 311- guide sleeve, 312- motion bar, 313- second spring, 314- push plate, 315- baffle, 316- first
Fixture block, 4- shaking device, 41- pillar, 42- cross bar, 43- first motor, 44- cam, 45- contact block, 5- funnel, 6- adjust dress
It sets, 61- vertical bar, 62- switch block, 63- bearing block, 64- nut, 65- fixed block, 66- screw rod, 67- transverse slat, 7- alarm set,
701- bearing piece, the second sliding rail of 702-, the second sliding block of 703-, 704- spring base, 705- third spring, the second fixture block of 706-, 707-
Striking head, 708- small bell, the second shank of 709-, the second skewback of 710-, 711- horizontal block, 8- bracket, 9- weather shield, 10- dustproof cover,
11- rubber pad.
Specific embodiment
The present invention is further illustrated with reference to the accompanying drawings and examples.
Embodiment 1
A kind of sport tennis service device includes as shown in figs. 1-7 bottom plate 1, support rod 2, ball serving device 3, vibration dress
4 and funnel 5 are set, 1 top right side of bottom plate is equipped with support rod 2, is equipped between 2 front side middle part of support rod and 1 top left side of bottom plate
Ball serving device 3,2 top of support rod are equipped with funnel 5, and funnel 5 is located at 3 top of ball serving device, and funnel 5 is connect with ball serving device 3,
1 top left side of bottom plate is equipped with shaking device 4, and the vibration component of shaking device 4 is located at 5 left side of funnel.
Embodiment 2
A kind of sport tennis service device includes as shown in figs. 1-7 bottom plate 1, support rod 2, ball serving device 3, vibration dress
4 and funnel 5 are set, 1 top right side of bottom plate is equipped with support rod 2, is equipped between 2 front side middle part of support rod and 1 top left side of bottom plate
Ball serving device 3,2 top of support rod are equipped with funnel 5, and funnel 5 is located at 3 top of ball serving device, and funnel 5 is connect with ball serving device 3,
1 top left side of bottom plate is equipped with shaking device 4, and the vibration component of shaking device 4 is located at 5 left side of funnel.
Ball serving device 3 includes electronic reel 301, bracing wire 302, strut 303, sticks up bar 304, the first sliding rail 305, first
Sliding block 306, the first spring 307, the first shank 308, the first skewback 309, service pipe 310, guide sleeve 311, motion bar 312, second
Spring 313, push plate 314, baffle 315 and the first fixture block 316 are equipped between 2 front side middle part of support rod and 1 top left side of bottom plate
Service pipe 310, service pipe 310 are to be obliquely installed, and 310 top of service pipe is connect with funnel 5, are connected in service pipe 310 and funnel 5
It is logical, guide sleeve 311 is installed among bottom in service pipe 310, is equipped with motion bar 312, motion bar 312 and guide sleeve 311 in guide sleeve 311
It is inside slidably matched, 312 right end of motion bar is equipped with push plate 314, and 314 bottom of push plate is contacted with bottom in service pipe 310, push plate
314 left sides and guide sleeve are connected with second spring 313 between 311 right side, and baffle 315, baffle are equipped at the top of push plate 314
315 tops are contacted with the discharge port of funnel 5, and 315 top left side of baffle is equipped with the first fixture block 316, and bottom is left in service pipe 310
Side is equipped with strut 303, and 303 top of strut is equipped with the first sliding rail 305,305 right side of the first sliding rail and the outer left side of funnel 5
Lower part connection, the first sliding rail 305 are equipped with the first sliding block 306 engaged therewith, 306 right side top of the first sliding block and funnel 5
The first spring 307 is connected between outer left side lower part, 306 bottom of the first sliding block is equipped with the first shank 308, the first shank
308 are located at 316 top of the first fixture block, and the first shank 308 and the first fixture block 316 cooperate, and the first shank is equipped among 308 bottom
First skewback 309,303 right upper portion of strut, which is equipped with, sticks up bar 304, sticks up bar 304 and is located at 309 left side of the first skewback, service pipe 310
Interior bottom left is equipped with electronic reel 301, and electronic reel 301 is located at 303 left side of strut, on electronic reel 301 around
There is bracing wire 302,302 tail end of bracing wire is connect with 306 left side top of the first sliding block.
Embodiment 3
A kind of sport tennis service device includes as shown in figs. 1-7 bottom plate 1, support rod 2, ball serving device 3, vibration dress
4 and funnel 5 are set, 1 top right side of bottom plate is equipped with support rod 2, is equipped between 2 front side middle part of support rod and 1 top left side of bottom plate
Ball serving device 3,2 top of support rod are equipped with funnel 5, and funnel 5 is located at 3 top of ball serving device, and funnel 5 is connect with ball serving device 3,
1 top left side of bottom plate is equipped with shaking device 4, and the vibration component of shaking device 4 is located at 5 left side of funnel.
Ball serving device 3 includes electronic reel 301, bracing wire 302, strut 303, sticks up bar 304, the first sliding rail 305, first
Sliding block 306, the first spring 307, the first shank 308, the first skewback 309, service pipe 310, guide sleeve 311, motion bar 312, second
Spring 313, push plate 314, baffle 315 and the first fixture block 316 are equipped between 2 front side middle part of support rod and 1 top left side of bottom plate
Service pipe 310, service pipe 310 are to be obliquely installed, and 310 top of service pipe is connect with funnel 5, are connected in service pipe 310 and funnel 5
It is logical, guide sleeve 311 is installed among bottom in service pipe 310, is equipped with motion bar 312, motion bar 312 and guide sleeve 311 in guide sleeve 311
It is inside slidably matched, 312 right end of motion bar is equipped with push plate 314, and 314 bottom of push plate is contacted with bottom in service pipe 310, push plate
314 left sides and guide sleeve are connected with second spring 313 between 311 right side, and baffle 315, baffle are equipped at the top of push plate 314
315 tops are contacted with the discharge port of funnel 5, and 315 top left side of baffle is equipped with the first fixture block 316, and bottom is left in service pipe 310
Side is equipped with strut 303, and 303 top of strut is equipped with the first sliding rail 305,305 right side of the first sliding rail and the outer left side of funnel 5
Lower part connection, the first sliding rail 305 are equipped with the first sliding block 306 engaged therewith, 306 right side top of the first sliding block and funnel 5
The first spring 307 is connected between outer left side lower part, 306 bottom of the first sliding block is equipped with the first shank 308, the first shank
308 are located at 316 top of the first fixture block, and the first shank 308 and the first fixture block 316 cooperate, and the first shank is equipped among 308 bottom
First skewback 309,303 right upper portion of strut, which is equipped with, sticks up bar 304, sticks up bar 304 and is located at 309 left side of the first skewback, service pipe 310
Interior bottom left is equipped with electronic reel 301, and electronic reel 301 is located at 303 left side of strut, on electronic reel 301 around
There is bracing wire 302,302 tail end of bracing wire is connect with 306 left side top of the first sliding block.
Shaking device 4 includes pillar 41, cross bar 42, first motor 43, cam 44 and contact block 45,1 top left of bottom plate
Side is equipped with pillar 41, and pillar 41 is located at 310 left side of service pipe, and 41 top of pillar is equipped with cross bar 42, the installation of 42 right end of cross bar
There is first motor 43, the output shaft of first motor 43 is connected with cam 44 by shaft coupling, and cam 44 is located at 5 left side of funnel, leakage
Bucket 5 is equipped with contact block 45 in the middle part of outer left side inclined-plane, and contact block 45 is located at 44 upper right side of cam.
Embodiment 4
A kind of sport tennis service device includes as shown in figs. 1-7 bottom plate 1, support rod 2, ball serving device 3, vibration dress
4 and funnel 5 are set, 1 top right side of bottom plate is equipped with support rod 2, is equipped between 2 front side middle part of support rod and 1 top left side of bottom plate
Ball serving device 3,2 top of support rod are equipped with funnel 5, and funnel 5 is located at 3 top of ball serving device, and funnel 5 is connect with ball serving device 3,
1 top left side of bottom plate is equipped with shaking device 4, and the vibration component of shaking device 4 is located at 5 left side of funnel.
Ball serving device 3 includes electronic reel 301, bracing wire 302, strut 303, sticks up bar 304, the first sliding rail 305, first
Sliding block 306, the first spring 307, the first shank 308, the first skewback 309, service pipe 310, guide sleeve 311, motion bar 312, second
Spring 313, push plate 314, baffle 315 and the first fixture block 316 are equipped between 2 front side middle part of support rod and 1 top left side of bottom plate
Service pipe 310, service pipe 310 are to be obliquely installed, and 310 top of service pipe is connect with funnel 5, are connected in service pipe 310 and funnel 5
It is logical, guide sleeve 311 is installed among bottom in service pipe 310, is equipped with motion bar 312, motion bar 312 and guide sleeve 311 in guide sleeve 311
It is inside slidably matched, 312 right end of motion bar is equipped with push plate 314, and 314 bottom of push plate is contacted with bottom in service pipe 310, push plate
314 left sides and guide sleeve are connected with second spring 313 between 311 right side, and baffle 315, baffle are equipped at the top of push plate 314
315 tops are contacted with the discharge port of funnel 5, and 315 top left side of baffle is equipped with the first fixture block 316, and bottom is left in service pipe 310
Side is equipped with strut 303, and 303 top of strut is equipped with the first sliding rail 305,305 right side of the first sliding rail and the outer left side of funnel 5
Lower part connection, the first sliding rail 305 are equipped with the first sliding block 306 engaged therewith, 306 right side top of the first sliding block and funnel 5
The first spring 307 is connected between outer left side lower part, 306 bottom of the first sliding block is equipped with the first shank 308, the first shank
308 are located at 316 top of the first fixture block, and the first shank 308 and the first fixture block 316 cooperate, and the first shank is equipped among 308 bottom
First skewback 309,303 right upper portion of strut, which is equipped with, sticks up bar 304, sticks up bar 304 and is located at 309 left side of the first skewback, service pipe 310
Interior bottom left is equipped with electronic reel 301, and electronic reel 301 is located at 303 left side of strut, on electronic reel 301 around
There is bracing wire 302,302 tail end of bracing wire is connect with 306 left side top of the first sliding block.
Shaking device 4 includes pillar 41, cross bar 42, first motor 43, cam 44 and contact block 45,1 top left of bottom plate
Side is equipped with pillar 41, and pillar 41 is located at 310 left side of service pipe, and 41 top of pillar is equipped with cross bar 42, the installation of 42 right end of cross bar
There is first motor 43, the output shaft of first motor 43 is connected with cam 44 by shaft coupling, and cam 44 is located at 5 left side of funnel, leakage
Bucket 5 is equipped with contact block 45 in the middle part of outer left side inclined-plane, and contact block 45 is located at 44 upper right side of cam.
It further include having regulating device 6, regulating device 6 includes vertical bar 61, switch block 62, bearing block 63, nut 64, fixed block
65, screw rod 66 and transverse slat 67 are equipped with transverse slat 67 below bottom plate 1, and 67 top left side of transverse slat is equipped with vertical bar 61, and 61 top of vertical bar is logical
The mode for crossing pin connection is equipped with switch block 62, and 62 top of switch block is connect with 1 bottom left of bottom plate, the installation of 67 top right side of transverse slat
There is bearing block 63, nut 64 is installed at the top of bearing block 63, nut 64 is connect with the bearing in bearing block 63,64 lateral surface of nut
The left and right sides is fitted with fixed block 65, fixed block 65 be it is arranged symmetrically, screw rod 66 is equipped in nut 64,66 top of screw rod passes through
The mode of pin connection is connect with 1 bottom right of bottom plate.
It further include having alarm set 7, alarm set 7 includes bearing piece 701, the second sliding rail 702, the second sliding block 703, spring
Seat 704, third spring 705, the second fixture block 706, striking head 707, small bell 708, the second shank 709, the second skewback 710 and horizontal block
711,305 top left side of the first sliding rail is equipped with bearing piece 701, and the second sliding rail 702, the second sliding rail 702 are equipped at the top of bearing piece 701
Right side is connect with 5 left side lower part of funnel, and the second sliding rail 702 is equipped with the second sliding block 703 engaged therewith, the second sliding block
703 are slidably matched with the second sliding rail 702, and 703 bottom right of the second sliding block is equipped with the second fixture block 706,706 right side of the second fixture block
Face is equipped with striking head 707, and 702 bottom right of the second sliding rail is equipped with small bell 708, and small bell 708 is located at 707 right side of striking head,
Second sliding rail, 702 top left side is equipped with spring base 704, and spring base 704 and the second sliding block are connected with third between 703 left side
Spring 705,702 bottom left of the second sliding rail are equipped with horizontal block 711, and 711 bottom right of horizontal block is inclined-plane, the first sliding block 306 top
Portion is equipped with the second shank 709, and the second shank 709 is located at 706 lower section of the second fixture block, and the second shank 709 connects with the second fixture block 706
Touching cooperation, 709 top center of the second shank is equipped with the second skewback 710.
Further include having bracket 8 and weather shield 9, bracket 8 is installed at the top of funnel 5,8 top of bracket is equipped with weather shield 9, gear
Rain plate 9 is located at right above funnel 5.
Further include having dustproof cover 10 and rubber pad 11, dustproof cover 10 is equipped on the right side of service pipe 310, on 10 left side of dustproof cover
Portion is connect with 310 right upper portion of service pipe, and dustproof cover is equipped with rubber pad 11 among 10 left side.
The material of bottom plate 1 is Q235 steel.
The material of service pipe 310 is stainless steel.
Working principle: being operated first personnel and tennis be put into funnel 5, restarts shaking device 4,4 pairs of shaking device leakages
Tennis in bucket 5 is shaken, and then flows into tennis preferably in ball serving device 3, and operator can start ball serving device
3, and then serve a ball and issue tennis, trainer can receive to the tennis of sending.When without that can close when playing tennis
Ball serving device 3 and shaking device 4.
Because ball serving device 3 include electronic reel 301, bracing wire 302, strut 303, stick up bar 304, the first sliding rail 305,
First sliding block 306, the first spring 307, the first shank 308, the first skewback 309, service pipe 310, guide sleeve 311, motion bar 312,
Second spring 313, push plate 314, baffle 315 and the first fixture block 316 are pacified between 2 front side middle part of support rod and 1 top left side of bottom plate
Equipped with service pipe 310, service pipe 310 is to be obliquely installed, and 310 top of service pipe is connect with funnel 5, in service pipe 310 and funnel 5
It is connected to, guide sleeve 311 is installed among bottom in service pipe 310, is equipped with motion bar 312, motion bar 312 and guide sleeve in guide sleeve 311
It is slidably matched in 311,312 right end of motion bar is equipped with push plate 314, and 314 bottom of push plate contacts with bottom in service pipe 310, pushes away
314 left side of plate and guide sleeve are connected with second spring 313 between 311 right side, and baffle 315, baffle are equipped at the top of push plate 314
315 tops are contacted with the discharge port of funnel 5, and 315 top left side of baffle is equipped with the first fixture block 316, and bottom is left in service pipe 310
Side is equipped with strut 303, and 303 top of strut is equipped with the first sliding rail 305,305 right side of the first sliding rail and the outer left side of funnel 5
Lower part connection, the first sliding rail 305 are equipped with the first sliding block 306 engaged therewith, 306 right side top of the first sliding block and funnel 5
The first spring 307 is connected between outer left side lower part, 306 bottom of the first sliding block is equipped with the first shank 308, the first shank
308 are located at 316 top of the first fixture block, and the first shank 308 and the first fixture block 316 cooperate, and the first shank is equipped among 308 bottom
First skewback 309,303 right upper portion of strut, which is equipped with, sticks up bar 304, sticks up bar 304 and is located at 309 left side of the first skewback, service pipe 310
Interior bottom left is equipped with electronic reel 301, and electronic reel 301 is located at 303 left side of strut, on electronic reel 301 around
There is bracing wire 302,302 tail end of bracing wire is connect with 306 left side top of the first sliding block, when tennis is located in funnel 5, operator
Electronic reel 301 can be started to invert, bracing wire 302 pulls the first sliding block 306 to be moved to the left, and the first spring 307 stretches, and first
Sliding block 306, which is moved to the left, drives the first shank 308 to be moved to the left, and then the first shank 308 drives baffle by the first fixture block 316
315 are moved to the left, baffle 315 be moved to the left drive push plate 314 be moved to the left, push plate 314 be moved to the left drive motion bar 312 to
It moves left, second spring 313 is compressed, and when baffle 315, which is moved to the left, not to be blocked the discharge port of funnel 5, tennis falls to hair
In bulb 310, tennis is contacted with push plate 314, and then when the first skewback 309 is with sticking up bar 304 and contacting, and sticking up bar 304 makes first tiltedly
Block 309 moves up, so drive the first shank 308 move up, the first shank 308 move up not with the first fixture block 316
Contact, because of the effect of second spring 313, push plate 314, which moves right, drives baffle 315 to move right the discharge port gear of funnel 5
Firmly, while tennis being driven to move right, and then tennis is projected by service pipe 310, trainer can to the tennis of sending into
Row is received training, and when tennis issues, operator can start electronic reel 301 and rotate forward, and bracing wire 302 is relaxed, because of the
The effect of one spring 307, the first sliding block 306, which moves right, drives the first shank 308 to move right recovery to original position, the first shank
308 are engaged with the first fixture block 316 catches on.Aforesaid operations repeatedly can serve a ball to a large amount of tennis.
Because shaking device 4 includes pillar 41, cross bar 42, first motor 43, cam 44 and contact block 45, bottom plate 1 is pushed up
Pillar 41 is installed, pillar 41 is located at 310 left side of service pipe, and 41 top of pillar is equipped with cross bar 42,42 right end of cross bar on the left of portion
First motor 43 is installed, the output shaft of first motor 43 is connected with cam 44 by shaft coupling, and it is left that cam 44 is located at funnel 5
Side, funnel 5 are equipped with contact block 45 in the middle part of outer left side inclined-plane, and contact block 45 is located at 44 upper right side of cam, when tennis is located at funnel 5
When interior, operator can start first motor 43 rotation, first motor 43 rotation band moving cam 44 rotate, cam 44 rotation with
Contact block 45 contacts, and then the rotation of cam 44 shakes funnel 5 by contact block 45, and tennis is shaken in the vibration of funnel 5
It is dynamic, and then tennis is enable preferably to fall in service pipe 310, the discharge port of funnel 5 will not be blocked.When it is not necessary that tennis is sent out
When out, first motor 43 can be closed.
Because further including having regulating device 6, regulating device 6 includes vertical bar 61, switch block 62, bearing block 63, nut 64, consolidates
Determine block 65, screw rod 66 and transverse slat 67, transverse slat 67 is equipped with below bottom plate 1,67 top left side of transverse slat is equipped with vertical bar 61, and vertical bar 61 pushes up
End is equipped with switch block 62 in such a way that pin connects, and 62 top of switch block is connect with 1 bottom left of bottom plate, 67 top right side of transverse slat
Bearing block 63 is installed, nut 64 is installed at the top of bearing block 63, nut 64 is connect with the bearing in bearing block 63, outside nut 64
Be fitted with fixed block 65 at left and right sides of side, fixed block 65 be it is arranged symmetrically, nut 64 is interior equipped with screw rod 66,66 top of screw rod
It is connect in such a way that pin connects with 1 bottom right of bottom plate, when needing to issue tennis with different angle, operator is
64 positive and negative rotation of nut can be twisted by fixed block 65,64 positive and negative rotation of nut drives screw rod 66 to rotate, and then screw rod 66 passes through
Nut 64 moves up and down, and screw rod 66, which moves up and down, drives bottom plate 1 to move up and down, and then bottom plate 1 is driven to move up and down with upper-part,
When service pipe 310 is moved up and down to the angle of demand, it can stop twisting nut 64, tennis is issued.In this way, issuing different
The tennis of angle can training effect to trainer it is more preferable.
Because further including having alarm set 7, alarm set 7 include bearing piece 701, the second sliding rail 702, the second sliding block 703,
Spring base 704, third spring 705, the second fixture block 706, striking head 707, small bell 708, the second shank 709,710 and of the second skewback
Horizontal block 711,305 top left side of the first sliding rail are equipped with bearing piece 701, and the second sliding rail 702 is equipped at the top of bearing piece 701, and second is sliding
702 right side of rail is connect with 5 left side lower part of funnel, the second sliding rail 702 be equipped with the second sliding block 703 engaged therewith, second
Sliding block 703 is slidably matched with the second sliding rail 702, and 703 bottom right of the second sliding block is equipped with the second fixture block 706, the second fixture block 706
Right side is equipped with striking head 707, and 702 bottom right of the second sliding rail is equipped with small bell 708, and it is right that small bell 708 is located at striking head 707
Side, 702 top left side of the second sliding rail are equipped with spring base 704, and spring base 704 and the second sliding block are connected between 703 left side
Third spring 705,702 bottom left of the second sliding rail are equipped with horizontal block 711, and 711 bottom right of horizontal block is inclined-plane, the first sliding block
306 tops are equipped with the second shank 709, and the second shank 709 is located at 706 lower section of the second fixture block, the second shank 709 and the second fixture block
706 are engaged, and 709 top center of the second shank is equipped with the second skewback 710, when bracing wire 302 pulls the first sliding block 306 to the left
When mobile, the first sliding block 306 drives the second shank 709 to be moved to the left simultaneously, and the second shank 709 moves left through the second fixture block
706 the second sliding blocks 703 of drive are moved to the left, and third spring 705 compresses, when the second skewback 710 is with 711 contact of incline plane of horizontal block,
Horizontal block 711 moves down the second shank 709 not contact with the second fixture block 706, because of the effect of third spring 705, the second sliding block
703 move right drives striking head 707 to move right by the second fixture block 706, and striking head 707 moves right to be connect with small bell 708
Touching, and then small bell 708 sounds and reminds trainer's tennis that will have issued at once.When tennis issues, the first sliding block 306 is to the right
The second shank 709 of mobile drive, which moves right, to be restored to original position, and then the second shank 709 is engaged with the second fixture block 706.Such as
This, can prevent trainer not look to cause to be injured by a crashing object by tennis.
Because further including having bracket 8 and weather shield 9, bracket 8 is installed at the top of funnel 5,8 top of bracket is equipped with weather shield
9, weather shield 9 is located at right above funnel 5, and weather shield 9 can block foreign debris and rainwater, and then prevent rainwater from falling to funnel
Tennis is soaked tennis is caused to damage by 5.
Because further including having dustproof cover 10 and rubber pad 11, dustproof cover 10,10 left side of dustproof cover are equipped on the right side of service pipe 310
Face top is connect with 310 right upper portion of service pipe, and dustproof cover is equipped with rubber pad 11 among 10 left side, when tennis issues,
Tennis contacts with rubber pad 11 and opens dustproof cover 10, and because gravity influences, dustproof cover 10 is closed.Dustproof cover 10 can prevent external miscellaneous
Object falls in service pipe 310 and blocks service pipe 310, and causes tennis that cannot issue.
Because the material of bottom plate 1 is Q235 steel, the load-bearing capacity of Q235 steel is strong, acidproof corrosion-resistant, increases making for bottom plate 1
Use the service life.
Because the material of service pipe 310 is stainless steel, stainless steel corrosion resistance and acid resistance are strong, make making for service pipe 310
Use longer life expectancy.
The preferred embodiment of the present invention above described embodiment only expresses, the description thereof is more specific and detailed, but simultaneously
Limitations on the scope of the patent of the present invention therefore cannot be interpreted as.It should be pointed out that for those of ordinary skill in the art
For, without departing from the inventive concept of the premise, several deformations can also be made, improves and substitutes, these belong to this hair
Bright protection scope.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (6)
1. a kind of sport tennis service device, which is characterized in that include bottom plate (1), support rod (2), ball serving device (3), shake
Dynamic device (4) and funnel (5), bottom plate (1) top right side are equipped with support rod (2), middle part and bottom plate (1) on front side of support rod (2)
Ball serving device (3) are equipped between top left side, support rod (2) top is equipped with funnel (5), and funnel (5) is located at ball serving device (3)
Top, funnel (5) are connect with ball serving device (3), and bottom plate (1) top left side is equipped with shaking device (4), the shake of shaking device (4)
Dynamic component is located on the left of funnel (5);Ball serving device (3) includes electronic reel (301), bracing wire (302), strut (303), sticks up
Bar (304), the first sliding rail (305), the first sliding block (306), the first spring (307), the first shank (308), the first skewback
(309), service pipe (310), guide sleeve (311), motion bar (312), second spring (313), push plate (314), baffle (315) and
One fixture block (316) is equipped with service pipe (310), service pipe between support rod (2) front side middle part and bottom plate (1) top left side
(310) it to be obliquely installed, is connect at the top of service pipe (310) with funnel (5), is connected to, serves a ball in service pipe (310) and funnel (5)
Pipe is equipped with guide sleeve (311) among (310) interior bottom, and motion bar (312), motion bar (312) and guide sleeve are equipped in guide sleeve (311)
(311) it is slidably matched in, motion bar (312) right end is equipped with push plate (314), push plate (314) bottom and service pipe (310) interior bottom
Portion's contact, is connected with second spring (313) between push plate (314) left side and guide sleeve (311) right side, at the top of push plate (314)
It is equipped with baffle (315), is contacted with the discharge port of funnel (5) at the top of baffle (315), baffle (315) top left side is equipped with the
One fixture block (316), service pipe (310) interior bottom left are equipped with strut (303), and strut (303) top is equipped with the first sliding rail
(305), the first sliding rail (305) right side is connect with the outer left side lower part of funnel (5), and the first sliding rail (305) is equipped with matches with it
The first sliding block (306) closed, is connected with first between the first sliding block (306) right side top and the outer left side lower part of funnel (5)
Spring (307), the first sliding block (306) bottom are equipped with the first shank (308), and the first shank (308) is located at the first fixture block (316)
Top, the first shank (308) and the first fixture block (316) cooperate, and are equipped with the first skewback among the first shank (308) bottom
(309), strut (303) right upper portion, which is equipped with, sticks up bar (304), sticks up bar (304) and is located on the left of the first skewback (309), service pipe
(310) interior bottom left is equipped with electronic reel (301), and electronic reel (301) is located on the left of strut (303), it is electronic around
It is wound in line wheel (301) bracing wire (302), bracing wire (302) tail end is connect with the first sliding block (306) left side top;Shaking device
It (4) include pillar (41), cross bar (42), first motor (43), cam (44) and contact block (45), bottom plate (1) top left side
It is equipped with pillar (41), pillar (41) is located on the left of service pipe (310), and pillar (41) top is equipped with cross bar (42), cross bar
(42) right end is equipped with first motor (43), and the output shaft of first motor (43) is connected with cam (44), cam by shaft coupling
(44) it is located on the left of funnel (5), inclined-plane middle part in left side is equipped with contact block (45) funnel (5) outside, and contact block (45) is located at cam
(44) upper right side;Further include having regulating device (6), regulating device (6) include vertical bar (61), switch block (62), bearing block (63),
Nut (64), fixed block (65), screw rod (66) and transverse slat (67), bottom plate (1) lower section are equipped with transverse slat (67), transverse slat (67) top left
Side is equipped with vertical bar (61), and vertical bar (61) top is equipped with switch block (62) in such a way that pin connects, at the top of switch block (62) with
The connection of bottom plate (1) bottom left, transverse slat (67) top right side are equipped with bearing block (63), are equipped with nut at the top of bearing block (63)
(64), nut (64) is connect with the bearing in bearing block (63), is fitted with fixed block at left and right sides of nut (64) lateral surface
(65), fixed block (65) is arranged symmetrically, is equipped with screw rod (66) in nut (64), the side that screw rod (66) top is connected by pin
Formula is connect with bottom plate (1) bottom right.
2. a kind of sport tennis service device according to claim 1, which is characterized in that it further include having alarm set (7),
Alarm set (7) includes bearing piece (701), the second sliding rail (702), the second sliding block (703), spring base (704), third spring
(705), the second fixture block (706), striking head (707), small bell (708), the second shank (709), the second skewback (710) and horizontal block
(711), the first sliding rail (305) top left side is equipped with bearing piece (701), is equipped with the second sliding rail (702) at the top of bearing piece (701),
Second sliding rail (702) right side is connect with funnel (5) left side lower part, and the second sliding rail (702) is equipped with engaged therewith second
Sliding block (703), the second sliding block (703) are slidably matched with the second sliding rail (702), and the second sliding block (703) bottom right is equipped with
Two fixture blocks (706), the second fixture block (706) right side are equipped with striking head (707), and the second sliding rail (702) bottom right is equipped with
Small bell (708), small bell (708) are located on the right side of striking head (707), and the second sliding rail (702) top left side is equipped with spring base
(704), it is connected with third spring (705) between spring base (704) and the second sliding block (703) left side, the second sliding rail (702) bottom
It is equipped with horizontal block (711) on the left of portion, horizontal block (711) bottom right is inclined-plane, is equipped with the second shank at the top of the first sliding block (306)
(709), the second shank (709) is located at below the second fixture block (706), and the second shank (709) is contacted with the second fixture block (706) matches
It closes, the second shank (709) top center is equipped with the second skewback (710).
3. a kind of sport tennis service device according to claim 2, which is characterized in that further include having bracket (8) and gear
Rain plate (9), funnel (5) top are equipped with bracket (8), and bracket (8) top is equipped with weather shield (9), and weather shield (9) is located at funnel
(5) right above.
4. a kind of sport tennis service device according to claim 3, which is characterized in that further include have dustproof cover (10) and
Rubber pad (11), service pipe (310) right side are equipped with dustproof cover (10), and dustproof cover (10) left side top and service pipe (310) are right
Upper lateral part connects, and is equipped with rubber pad (11) among dustproof cover (10) left side.
5. a kind of sport tennis service device according to claim 4, which is characterized in that the material of bottom plate (1) is Q235
Steel.
6. a kind of sport tennis service device according to claim 5, which is characterized in that the material of service pipe (310) is
Stainless steel.
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| CN201710929907.XA CN107596664B (en) | 2017-10-09 | 2017-10-09 | A kind of sport tennis service device |
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|---|---|---|---|
| CN201710929907.XA CN107596664B (en) | 2017-10-09 | 2017-10-09 | A kind of sport tennis service device |
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| CN107596664A CN107596664A (en) | 2018-01-19 |
| CN107596664B true CN107596664B (en) | 2019-07-12 |
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Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108379810A (en) * | 2018-02-23 | 2018-08-10 | 王小军 | A kind of sport table tennis training teeing apparatus |
| CN108404391A (en) * | 2018-04-03 | 2018-08-17 | 湖南文理学院 | A kind of athletic training vollyball catapult-launching gear |
| CN108579052A (en) * | 2018-04-27 | 2018-09-28 | 傅源彬 | A kind of athletic training ball projecting device for tennis |
| CN108992901B (en) * | 2018-07-26 | 2020-09-11 | 瑞安市众人体育培训有限公司 | Table tennis serving device for physical training |
| CN108905111B (en) * | 2018-08-28 | 2021-08-24 | 百铭服饰(福建)有限公司 | Tennis ball launching and recovering device for tennis training field |
| CN109107134B (en) * | 2018-10-10 | 2020-06-05 | 詹晓丹 | Children's ball patting exercise device |
| CN109529302B (en) * | 2018-12-11 | 2020-09-22 | 温州骐烨机械有限公司 | Table tennis training service equipment |
| CN110193181B (en) * | 2019-05-15 | 2021-01-19 | 韩子愈 | Ball serving equipment for sports table tennis training |
| CN110327609A (en) * | 2019-07-05 | 2019-10-15 | 朱青青 | A kind of baseball training impact equipment |
| CN111420382B (en) * | 2020-04-09 | 2021-03-19 | 华北水利水电大学 | Tennis serving device for physical training |
| CN114028791A (en) * | 2021-12-01 | 2022-02-11 | 湖南第一师范学院 | Service robot is used in table tennis training convenient to angle regulation |
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| CN201862237U (en) * | 2010-08-31 | 2011-06-15 | 郑纳钢 | Full-automatic pitching machine |
| CN202387195U (en) * | 2011-12-27 | 2012-08-22 | 焦作大学 | Universally automatic rotary stretching-type pitching machine |
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Effective date of registration: 20190619 Address after: 226112 Jiangsu Province, Haimen City, Haimen City, Samsung Town, near 23 Dadao Road, Dieshiqiao Applicant after: Nantong Tai Ying new Mstar Technology Ltd Address before: 330000 Nanchang economic and Technological Development Zone, Nanchang, Jiangxi, 889 Applicant before: Zhou Aiyun |
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