CN206792987U - A kind of tennis serve machine - Google Patents
A kind of tennis serve machine Download PDFInfo
- Publication number
- CN206792987U CN206792987U CN201720559094.5U CN201720559094U CN206792987U CN 206792987 U CN206792987 U CN 206792987U CN 201720559094 U CN201720559094 U CN 201720559094U CN 206792987 U CN206792987 U CN 206792987U
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- gas
- gun barrel
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- serve machine
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Abstract
The utility model provides a kind of tennis serve machine, belongs to tennis apparatus field, this tennis serve machine, including gun body and upper ball funnel, and gun body includes gun barrel and emission part, and upper ball funnel is fixedly connected on the side of gun barrel；Gun barrel includes first end and the second end being oppositely arranged, first end is provided with the mouth of pipe, and emission part is arranged on the second end, and emission part includes pushing part, control gas portion and gas cylinder, gas cylinder can be deflated to gun barrel and promote pushing part to be moved to close to one end of the mouth of pipe, and control gas portion can control the releasing of gas in gas cylinder.The limitation of power supply can be broken away from by tennis serve machine provided by the utility model, and controllability of serving a ball is high, and gas cylinder is changed simply, and maintenance is also easy.
Description
Technical field
Tennis apparatus field is the utility model is related to, in particular to a kind of tennis serve machine.
Background technology
At present, the tennis serve machine of most main flow is that the tennis that extruded when rotating against for leaning on two wheels gets tennis.This
The tennis serve machine of sample has higher requirement to power supply, generally requires to take bulky portable power source, and need during power depletion
To charge for a long time.
It is related to motor and complicated drive connection in maintenance, maintenance cost is also higher and maintenance is complicated, the mistake of maintenance
Lose rate height.
Utility model content
The utility model provides a kind of tennis serve machine, it is intended to solves above-mentioned existing for tennis serve machine in the prior art
Problem.
What the utility model was realized in：
A kind of tennis serve machine, including gun body and upper ball funnel, the gun body include gun barrel and emission part, the upper ball leakage
Bucket is fixedly connected on the side of the gun barrel；
The gun barrel includes the first end being oppositely arranged and the second end, the first end are provided with the mouth of pipe, the emission part
Installed in second end, the emission part includes pushing part, control gas portion and gas cylinder, and the gas cylinder can be deflated to gun barrel and promote institute
State pushing part to move to close to one end of the mouth of pipe, the control gas portion can control the releasing of gas in the gas cylinder.
In the utility model preferred embodiment, the pushing part includes push the ball part, connecting rod and piston, the piston
Close to second end, the part of pushing the ball is connected to the piston close to one end of the mouth of pipe by the connecting rod.
In the utility model preferred embodiment, the control gas portion is arranged on the pushing part close to second end
Side, the control gas portion include the first retaining wall, the second retaining wall and gas-control part, are provided with first through hole on first retaining wall, institute
State and second through hole coaxial with the first through hole is provided with the second retaining wall, between first retaining wall and second retaining wall
Control room is provided with, the gas-control part is slidably arranged in the control room, and the gas-control part can block or open described first
Through hole and second through hole.
In the utility model preferred embodiment, one end of the gas-control part is provided with the first elastic component, and described first
The one end of elastic component away from the gas-control part is connected to the gun barrel inwall.
In the utility model preferred embodiment, discouraged portion is provided between the piston and the control gas portion, it is described
Losing heart, portion includes bleeder port, lose heart runner and opening and closing part, and the bleeder port connects on the inside of the gun barrel and the discouraged runner, institute
State and discouraged baffle plate is provided with discouraged runner, folding hole is provided with the discouraged baffle plate, the opening and closing part can be blocked or opened
The folding hole.
In the utility model preferred embodiment, fitting is provided with the discouraged runner, the discouraged portion is also wrapped
The second elastic component is included, one end of second elastic component is connected with the opening and closing part close to one end of the bleeder port, the other end
It is connected with the fitting.
In the utility model preferred embodiment, the one end of the opening and closing part away from second elastic component, which is provided with, prolongs
Boom, the termination of the extension rod are hinged with folding lever, and one end of the gas-control part is provided with thimble, and the thimble stretches out institute
State gun barrel and abut the described one end of folding lever away from the extension rod.
In the utility model preferred embodiment, the upper ball funnel includes first and second mouthful, the first
Area is more than second open area, and described second mouthful to form upper ball passage with being communicated inside the gun barrel, and the piston abuts
During the bleeder port, it is described push the ball part on described ball passage close to the side at second end.
In the utility model preferred embodiment, the one side away from the piston is set fluted on the part of pushing the ball,
The groove can coordinate with tennis.
A kind of tennis serve machine, including gun body and upper ball funnel, the gun body include gun barrel and emission part, the upper ball leakage
Bucket is detachably connected to the side of the gun barrel；
The gun barrel includes the first end being oppositely arranged and the second end, the first end are provided with the mouth of pipe, the emission part
Installed in second end, the emission part includes pushing part, control gas portion and gas cylinder, and the gas cylinder can be deflated to gun barrel and promote institute
State pushing part to move to close to one end of the mouth of pipe, the control gas portion can control the releasing of gas in the gas cylinder.
The beneficial effects of the utility model are：The limit of power supply can be departed from by tennis serve machine provided by the utility model
System.The time length of gas-control part is opened by controlling can control the emission rate of tennis, have higher service controlling.It is whole
The tennis serve machine small volume of body, is easy to preserve, easily maintenance simple in construction.
Brief description of the drawings
, below will be to required in embodiment in order to illustrate more clearly of the technical scheme of the utility model embodiment
The accompanying drawing used is briefly described, it will be appreciated that and the following drawings illustrate only some embodiments of the present utility model, therefore not
The restriction to scope is should be considered as, for those of ordinary skill in the art, on the premise of not paying creative work,
Other related accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation for the tennis serve machine that the utility model embodiment provides；
Fig. 2 is the partial enlarged drawing of a-quadrant in Fig. 1；
Fig. 3 is the structural representation in the control gas portion that the utility model embodiment provides；
Fig. 4 is the structural representation in the discouraged portion that the utility model embodiment provides；
Fig. 5 is the structural representation for the upper ball funnel that the utility model embodiment two provides.
Icon：001- tennis serve machines；010- gun bodies；011- gun barrels；013- emission parts；The upper ball funnels of 020-；021-
Flatly；Second mouthful of 023-；110- first ends；The 111- mouths of pipe；The ends of 130- second；200- pushing parts；210- pushes the ball part；211- is recessed
Groove；213- convex arcs；230- connecting rods；250- pistons；270- buffer parts；271- buffer walls；The elastic components of 273- the 3rd；275- is buffered
Block；300- control gas portion；The retaining walls of 310- first；311- first through hole；The retaining walls of 330- second；The through holes of 331- second；350- gas-control parts；
351- bracing wires；353- thimbles；370- control rooms；The elastic components of 390- first；400- loses heart portion；410- bleeder ports；430-, which loses heart, to flow
Road；450- opening and closing parts；451- extension rods；453- folding levers；470- loses heart baffle plate；471- foldings hole；480- fittings；490-
Second elastic component；500- gas cylinders；510- inner chambers；530- air outlet valves；531- gas outlets；533- outlet baffle plates；535- choking portions；
5351- type of tamper evidence；The elastic components of 5353- the 4th；5355- substrates；600- drive divisions；610- ball pivots portion；611- spheroids；613- balls
Set；630- drive components；The bars of 631- first；The bars of 633- second.
Embodiment
To make the purpose, technical scheme and advantage of the utility model embodiment clearer, below in conjunction with this practicality
Accompanying drawing in new embodiment, the technical scheme in the utility model embodiment is clearly and completely described, shown
So, described embodiment is a part of embodiment of the utility model, rather than whole embodiments.Based on this practicality
Embodiment in new, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of the utility model protection.Therefore, the implementation of the present utility model to providing in the accompanying drawings below
The detailed description of mode is not intended to limit claimed the scope of the utility model, but is merely representative of of the present utility model
Selected embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not making creative labor
The every other embodiment obtained under the premise of dynamic, belong to the scope of the utility model protection.
In description of the present utility model, it is to be understood that the term of indicating position or position relationship is based on accompanying drawing
Shown orientation or position relationship, it is for only for ease of description the utility model and simplifies description, rather than indicates or imply institute
The equipment or element of finger must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to this reality
With new limitation.
In the utility model, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " Gu
It is fixed " etc. term should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally；Can be
Mechanically connect or electrically connect；Can be joined directly together, can also be indirectly connected by intermediary, can be two
The connection of element internal or the interaction relationship of two elements.For the ordinary skill in the art, can basis
Concrete condition understands concrete meaning of the above-mentioned term in the utility model.
In the utility model, unless otherwise clearly defined and limited, fisrt feature is on or below second feature
Can directly it be contacted including the first and second features, it is not directly to contact but pass through it that can also include the first and second features
Between other characterisation contact.Moreover, fisrt feature is on second feature, top and above include fisrt feature the
Directly over two features and oblique upper, or be merely representative of fisrt feature level height and be higher than second feature.Fisrt feature is special second
Under sign, lower section and fisrt feature included below are immediately below second feature and obliquely downward, or are merely representative of fisrt feature level
Highly it is less than second feature.
Embodiment one
A kind of tennis serve machine 001 is present embodiments provided, referring to Fig. 1, this tennis serve machine 001 includes gun body
010 and upper ball funnel 020.
Referring to Fig. 2, gun body 010 includes gun barrel 011 and emission part 013, upper ball funnel 020 is fixedly installed on gun barrel 011
Side, upper ball funnel 020 includes first 021 and second mouthful 023, and the area of first 021 is more than second mouthful 023, passes through
Tennis easily can be put into upper ball funnel 020 by first 021, and tennis can be leak into gun barrel 011 by second mouthful 023
It is interior.Be connected with gun barrel 011 for second mouthful 023, second mouthful 023 with being communicated inside gun barrel 011, by second mouthful 023 can on
Tennis in ball funnel 020 is entered in gun barrel 011 by gravity.
Gun barrel 011 includes the end 130 of first end 110 and second being oppositely arranged, and first end 110 is provided with the mouth of pipe 111, tennis
Gun barrel 011 can be launched from the mouth of pipe 111.Emission part 013 is installed at the second end 130, emission part 013 includes pushing part 200,
Pushing part 200 is arranged on second mouthful 023 close to the side at the second end 130.Pushing part 200 includes push the ball part 210, connecting rod 230
With piston 250, one end and the piston 250 of connecting rod 230 are fixedly linked, and the other end is fixedly linked with part 210 of pushing the ball.Piston 250
It is put into gun barrel 011, piston 250 is positioned close to the side at the second end 130, and the periphery of piston 250 is with the inner wall sealing of gun barrel 011
It is slidably connected, connecting rod 230 and gun barrel 011 are coaxial.One end away from piston 250 of part 210 of pushing the ball sets fluted 211, groove
211 arc is engaged with the arc of tennis so that the tennis correct guidance during pushing the ball.In part 210 of pushing the ball close to piston
250 one end is provided with convex arc 213, and convex arc 213 can be when pushing the ball 210 backhaul of part so that falling down abutting from upper ball funnel 020
The tennis of connecting rod 230 is returned in upper ball funnel 020 along convex arc 213.
Buffer part 270 is additionally provided between piston 250 and part 210 of pushing the ball, buffer part 270 includes buffer wall the 271, the 3rd
Elastic component 273 and buffer stopper 275, buffer wall 271 are fixedly connected on inside gun barrel 011, are additionally provided with and are used in buffer wall 271
The hole that connecting rod 230 passes through, one end of the 3rd elastic component 273 are fixedly connected on buffer wall 271 towards one end of piston 250, and
The other end of three elastic components 273 is fixedly linked with buffer stopper 275, when piston 250 moves towards first end 110, can pass through
Buffer part 270 prevents piston 250 from moving on and goes out gun barrel 011.
Referring to Fig. 3, being additionally provided with control gas portion 300 at the second end 130 of gun barrel 011, control gas portion 300 includes the first retaining wall
310th, the second retaining wall 330 and gas-control part 350, first through hole 311 is provided with the first retaining wall 310, is provided with the second retaining wall 330
Second through hole 331, the through hole 331 of first through hole 311 and second is coaxial, and control is provided among the first retaining wall 310 and the second retaining wall 330
Room 370 processed.Gas-control part 350 is installed in control room 370, the side of gas-control part 350 abuts the first retaining wall 310, and opposite side supports
The second retaining wall 330 is connect, gas-control part 350 can slide in control room 370, when gas-control part 350 slides into first through hole 311 and second
When between through hole 331, passage that gas-control part 350 is blocked between the through hole 331 of first through hole 311 and second so that gas can not be from
Second through hole 331 enters first through hole 311 or enters the second through hole 331 from first through hole 311.When gas-control part 350 slides into
When leaving between the through hole 331 of first through hole 311 and second, the through hole 331 of first through hole 311 and second is formed can be with gas communication
Passage.
The through hole 331 of first through hole 311 and second is positioned close to the side of ball funnel 020 in the present embodiment, controls gas
The one end of part 350 away from the through hole 331 of first through hole 311 and second is provided with the first elastic component 390, the first elastic component 390 it is another
One end is fixedly connected on the inwall of gun barrel 011.Also set in the one end of gas-control part 350 away from the through hole 331 of first through hole 311 and second
It is equipped with bracing wire 351.The one end of bracing wire 351 away from gas-control part 350 can control manually, motor control or other control modes, lead to
The position of gas-control part 350 can be controlled by crossing bracing wire 351, so as to control the folding between the through hole 331 of first through hole 311 and second.
Fig. 2 and Fig. 4 are referred to, thimble 353, thimble are additionally provided with the one end of gas-control part 350 away from the first elastic component 390
353 pass through the inwall of gun barrel 011, stretch out gun barrel 011.Discouraged portion 400 is provided between control gas portion 300 and piston 250, portion of losing heart
400 include bleeder port 410, lose heart runner 430 and opening and closing part 450, and the runner 430 that loses heart is arranged on gun barrel 011 close to upper ball funnel
020 side, bleeder port 410 connect the inner side of gun barrel 011 and discouraged runner 430.Discouraged baffle plate is provided with discouraged runner 430
470, folding hole 471 is provided with the baffle plate 470 that loses heart, and opening and closing part 450 be truncated cone-shaped, and the stub end of opening and closing part 450 is close to discouraged
Hole 410, small head end can block folding hole 471 completely close to folding hole 471 by opening and closing part 450.In discouraged runner 430
The elastic component 490 of fitting 480 and second is additionally provided with, fitting 480 is arranged between discouraged baffle plate 470 and bleeder port 410, the
One end of two elastic components 490 is fixedly connected on fitting 480, and the other end is fixedly connected on opening and closing part 450.In opening and closing part
450 one end away from bleeder port 410 are additionally provided with extension rod 451, and the one end of extension rod 451 away from opening and closing part 450 is hinged with out
Lever 453 is closed, the one end of folding lever 453 away from extension rod 451 is abutted with thimble 353, and folding can be prized by thimble 353
Lever 453, further extension rod 451 is controlled to be moved towards or away from the direction of bleeder port 410.
Gas cylinder 500 is also associated with the second end 130, gas cylinder 500 and gun barrel 011 are connected through a screw thread, when in gas cylinder 500
Gas cylinder 500 can be changed during air pressure deficiency to be continuing with.Gas cylinder 500 includes inner chamber 510 and air outlet valve 530, and air outlet valve 530 includes
Gas outlet 531, outlet baffle plate 533 and choking portion 535, outlet baffle plate 533 are arranged at gas outlet 531, set on outlet baffle plate 533
Venthole is equipped with, choking portion 535 includes type of tamper evidence 5351, the 4th elastic component 5353 and substrate 5355, and type of tamper evidence 5351 can block
Venthole, one end of the 4th elastic component 5353 are connected with type of tamper evidence 5351, and the other end is connected with substrate 5355.
Drive division 600 can also be set in the outer side away from upper ball funnel 020 of gun barrel 011, drive division 600 includes ball pivot
Portion 610 and drive component 630, ball pivot portion 610 include spheroid 611 and ball cover 613, can after ball cover 613 is fixed on into fixed position
To cause gun barrel 011 to be rotated with spheroid 611 for run-on point.Drive component 630 is arranged on ball pivot portion 610 close to the second end
130 outside of gun barrel 011, drive component 630 include the first bar 631 and the second bar 633, and the first bar 631 is socketed in the second bar 633
Interior to be slided in the second bar 633, the second bar 633 and gun barrel 011 are be hinged, the first bar 631 can be connected by flexible cord motor head or
Artificially the type of drive such as promotion make it that the first bar 631 moves to person, so as to drive gun barrel 011 to be rotated around spheroid 611 in all directions.
Each elastic component uses spring in the present embodiment, can also use the bullets such as rubber or air bag in other embodiments
Property part.
The limitation of power supply can be departed from by tennis serve machine 001 provided by the utility model.Control gas is opened by controlling
The time length of part 350 can control the emission rate of tennis, have higher service controlling.Overall tennis serve machine
001 small volume, it is easy to preserve, easily maintenance simple in construction.
Embodiment two
A kind of tennis serve machine 001 is present embodiments provided, referring to Fig. 1, the tennis serve machine 001 that the present embodiment provides
It is with the difference of embodiment one：
Fig. 1 and Fig. 5 are referred to, upper ball funnel 020 is by being threadably mounted on gun barrel 011, and upper ball funnel 020 can during storage
To remove, to save space.
The limitation of power supply can be departed from by tennis serve machine 001 provided by the utility model.Control gas is opened by controlling
The time length of part 350 can control the emission rate of tennis, have higher service controlling.Overall tennis serve machine
001 small volume, it is easy to preserve, easily maintenance simple in construction.
Preferred embodiment of the present utility model is the foregoing is only, is not limited to the utility model, for
For those skilled in the art, the utility model can have various modifications and variations.It is all in spirit of the present utility model and former
Within then, any modification, equivalent substitution and improvements made etc., it should be included within the scope of protection of the utility model.
Claims (10)
- A kind of 1. tennis serve machine, it is characterised in that including gun body and upper ball funnel, the gun body includes gun barrel and emission part, The upper ball funnel is fixedly connected on the side of the gun barrel；The gun barrel includes first end and the second end being oppositely arranged, and the first end is provided with the mouth of pipe, the emission part installation At second end, the emission part includes pushing part, control gas portion and gas cylinder, and the gas cylinder can be deflated to described in gun barrel promotion and push away Dynamic portion moves to close to one end of the mouth of pipe, and the control gas portion can control the releasing of gas in the gas cylinder.
- 2. tennis serve machine according to claim 1, it is characterised in that the pushing part include push the ball part, connecting rod and Piston, the piston are connected to the piston close to the pipe close to second end, the part of pushing the ball by the connecting rod One end of mouth.
- 3. tennis serve machine according to claim 2, it is characterised in that it is close that the control gas portion is arranged on the pushing part The side at second end, the control gas portion include the first retaining wall, the second retaining wall and gas-control part, are provided with first retaining wall First through hole, is provided with second through hole coaxial with the first through hole on second retaining wall, first retaining wall and described Control room is provided between second retaining wall, the gas-control part is slidably arranged in the control room, the gas-control part can block or Open the first through hole and second through hole.
- 4. tennis serve machine according to claim 3, it is characterised in that one end of the gas-control part is provided with the first elasticity Part, the described one end of first elastic component away from the gas-control part are connected to the gun barrel inwall.
- 5. tennis serve machine according to claim 3, it is characterised in that be provided between the piston and the control gas portion Lose heart portion, the discouraged portion includes bleeder port, lose heart runner and opening and closing part, and the bleeder port connects on the inside of the gun barrel and described Lose heart runner, is provided with discouraged baffle plate in the discouraged runner, folding hole is provided with the discouraged baffle plate, the opening and closing part can Block or open the folding hole.
- 6. tennis serve machine according to claim 5, it is characterised in that be provided with fitting in the discouraged runner, institute Stating discouraged portion also includes the second elastic component, and one end of second elastic component and the opening and closing part are close to one end of the bleeder port Connection, the other end are connected with the fitting.
- 7. tennis serve machine according to claim 6, it is characterised in that the opening and closing part is away from second elastic component One end is provided with extension rod, and the termination of the extension rod is hinged with folding lever, and one end of the gas-control part is provided with thimble, institute State thimble and stretch out the described described one end of folding lever away from the extension rod of gun barrel abutting.
- 8. tennis serve machine according to claim 5, it is characterised in that the upper ball funnel includes first and second Mouthful, first open area is more than second open area, and described second mouthful to form upper ball passage with being communicated inside the gun barrel, When the piston abuts the bleeder port, it is described push the ball part on described ball passage close to the side at second end.
- 9. tennis serve machine according to claim 2, it is characterised in that the one side away from the piston on the part of pushing the ball Set fluted, the groove can coordinate with tennis.
- A kind of 10. tennis serve machine, it is characterised in that including gun body and upper ball funnel, the gun body includes gun barrel and emission part, The upper ball funnel is detachably connected to the side of the gun barrel；The gun barrel includes first end and the second end being oppositely arranged, and the first end is provided with the mouth of pipe, the emission part installation At second end, the emission part includes pushing part, control gas portion and gas cylinder, and the gas cylinder can be deflated to described in gun barrel promotion and push away Dynamic portion moves to close to one end of the mouth of pipe, and the control gas portion can control the releasing of gas in the gas cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720559094.5U CN206792987U (en) | 2017-05-18 | 2017-05-18 | A kind of tennis serve machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720559094.5U CN206792987U (en) | 2017-05-18 | 2017-05-18 | A kind of tennis serve machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206792987U true CN206792987U (en) | 2017-12-26 |
Family
ID=60740990
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720559094.5U Expired - Fee Related CN206792987U (en) | 2017-05-18 | 2017-05-18 | A kind of tennis serve machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206792987U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108543300A (en) * | 2018-07-05 | 2018-09-18 | 安徽省欧球信息技术有限公司 | A kind of tennis serve machine |
| CN108905154A (en) * | 2018-08-30 | 2018-11-30 | 德清创能电子科技有限公司 | A kind of tennis transmitter |
| CN108939496A (en) * | 2018-09-30 | 2018-12-07 | 张家林 | A kind of intelligent tennis ball transmitter |
| CN109107133A (en) * | 2018-10-12 | 2019-01-01 | 温州职业技术学院 | A kind of tennis emitter |
| CN111603743A (en) * | 2020-06-03 | 2020-09-01 | 平顶山学院 | Sports teaching tennis service trainer |
| CN112138355A (en) * | 2020-08-17 | 2020-12-29 | 盐城锐特健康发展有限公司 | Closed table tennis training ball table |
-
2017
- 2017-05-18 CN CN201720559094.5U patent/CN206792987U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108543300A (en) * | 2018-07-05 | 2018-09-18 | 安徽省欧球信息技术有限公司 | A kind of tennis serve machine |
| CN108905154A (en) * | 2018-08-30 | 2018-11-30 | 德清创能电子科技有限公司 | A kind of tennis transmitter |
| CN108939496A (en) * | 2018-09-30 | 2018-12-07 | 张家林 | A kind of intelligent tennis ball transmitter |
| CN109107133A (en) * | 2018-10-12 | 2019-01-01 | 温州职业技术学院 | A kind of tennis emitter |
| CN111603743A (en) * | 2020-06-03 | 2020-09-01 | 平顶山学院 | Sports teaching tennis service trainer |
| CN112138355A (en) * | 2020-08-17 | 2020-12-29 | 盐城锐特健康发展有限公司 | Closed table tennis training ball table |
| CN112138355B (en) * | 2020-08-17 | 2021-10-01 | 盐城锐特健康发展有限公司 | Closed table tennis training ball table |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171226 Termination date: 20180518 |