CN206152234U - Ball and service car are picked up to semi -automatic tennis - Google Patents
Ball and service car are picked up to semi -automatic tennis Download PDFInfo
- Publication number
- CN206152234U CN206152234U CN201621216391.1U CN201621216391U CN206152234U CN 206152234 U CN206152234 U CN 206152234U CN 201621216391 U CN201621216391 U CN 201621216391U CN 206152234 U CN206152234 U CN 206152234U
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- service
- picks
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- 210000000515 Tooth Anatomy 0.000 claims description 18
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- 230000005611 electricity Effects 0.000 claims description 2
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- 101700050571 SUOX Proteins 0.000 abstract description 2
- 230000000386 athletic Effects 0.000 abstract description 2
- 238000007906 compression Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000005483 Hooke's law Effects 0.000 description 1
- 210000003205 Muscles Anatomy 0.000 description 1
- 206010033307 Overweight Diseases 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000005055 memory storage Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006011 modification reaction Methods 0.000 description 1
- 235000020825 overweight Nutrition 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
Abstract
The utility model relates to a ball and service car are picked up to semi -automatic tennis, including automobile body, chassis and wheel, still include: cylinder, guide rail, ball box, storage basket and apparatus for launching balls, the cylinder is through its center pin and place the vertical connecting rod swivelling joint on the chassis in, drum rear end is arranged in to the guide rail, installs on the chassis to upwards extend to and store up the basket front end, be an arc structure, be equipped with the opening cell type strip that supplies the operation of ball box on the guide rail, storing up basket and installing in the automobile body front end, the bottom is equipped with an aperture, be connected with apparatus for launching balls through the hose, the cylinder surface is still with the magic subsides. The utility model discloses can convenient and fast pick up the tennis that scatters in in a big way, the ground staff's that has significantly reduced work load and people's unnecessary physical demands in athletic training, labour saving and time saving has also improved and picked up ball efficiency simultaneously, the reliable operation, convenient to use is fit for the penetration and promotion, can extensively dispose and use in each sports training ground shop.
Description
Technical field
The utility model is related to one kind and picks up ball equipment, more particularly to a kind of semi-automatic tennis picks up ball and service car, it is adaptable to
The large number of tennis of tennis training venue is collected, and belongs to physical culture auxiliary appliance technical field.
Background technology
In recent years, tennis becomes increasingly popular, and increasing people is ready to put into tennis.But, in tennis
In training, especially in single service training, need to use many tennises, because tennis court area is larger, tennis is usually
It is scattered in the larger context, during playing ball, people will often take a lot of time and squat down on the ground or bend over to pick up ball, will
Tennis is collected, and carries out the exercise of a new round, that is, expend muscle power and lose time again, and ball picking-up efficiency is also low.
In order to improve the efficiency for picking up ball, some tennis ball picking up device are also occurred in that in the market, but type is few, greatly
All it is to be made up of parts such as draw ring, spring, ball cylinder, blend stop, pin, draw ring cylinder, iron wires, complex manufacturing technology, installing/dismounting is not
Just, and capacity is little, practicality is not strong, and it is overweight and damage tennis to be also easy to force during ball is picked up, and reduces the use longevity of tennis
Life, to the staff for picking up ball very big inconvenience is brought.
To sum up, existing tennis picks up ball and has that to bend over to pick up ball by manpower more inconvenient, not only expends the time, and expends body
The problems such as power, inefficiency.Meanwhile, existing tennis ball picking up device has capacity little, unhandy shortcoming.
The content of the invention
For the shortcoming of above-mentioned prior art, the purpose of this utility model is to provide a kind of easy to operate, ball picking-up efficiency height
Semi-automatic tennis pick up ball and service car, to solve that manually pick up present in prior art ball inconvenient, collect fatigue, pick up ball effect
The low and existing problem that tennis ball picking up device capacity is little, practicality is not strong of rate.
To achieve these goals, the utility model provides a kind of semi-automatic tennis and picks up ball and service car, including car body, bottom
Frame and wheel, it is characterised in that also include：Cylinder, guide rail, ball case, storage ball basket and ball serving device, the cylinder passes through its center
Axle is rotatably connected with the vertical connecting rod being placed on underframe, and the guide rails assembling is placed in cylinder rear side on underframe, and guide rail is in
Arcuate structure simultaneously extends upwardly to storage ball basket upside；Guide rail is provided with the strip gab groove for ball case operation, the storage ball basket peace
Loaded on car body front end, located at the lower section of storage ball basket, storage ball basket bottom is provided with an aperture to ball serving device, and aperture is by flexible pipe and service
Device connects, and the cylinder surface is accompanied by VELCRO.
Preferably, the ball case is in comb shape near cylinder one end, and the comb structure of cylinder protrusion is provided with ball case,
Comb structure presents the gradually roomy and abundant state in the sharp rear end in front end.
Preferably, the ball serving device has alley, batting cylinder, fixed seat, driving means, left and right directions adjusting apparatus,
Batting cylinder is located between alley and fixed seat, and driving means are located at batting cylinder downside and drive batting cylinder movement, cover in fixed seat
Spring is provided with, flexible pipe is connected with alley.
Preferably, the driving means also include the buncher for adjusting spring travel, the buncher and bullet
Spring connects.
Preferably, base plate is provided with the downside of ball serving device, base plate is provided with chute, and the end of alley has service mouth, left
Right direction adjusting apparatus located at service mouth front side, left and right directions adjusting apparatus include the first cam, oscillating motor, rubber band and
Gag lever post, the output end of oscillating motor is connected with one end of the first cam and drives the first cam rotation, oscillating motor to be arranged on
On motor cabinet, gag lever post is vertically installed on the side wall of ball serving device and located at the both sides of oscillating motor, and the lower end of gag lever post is put
In the chute, connected by rubber band between gag lever post and motor cabinet, the length of the first cam is more than oscillating motor and limit
Spacing between the bar of position.
Preferably, the second cam and elevation angle motor, the output end of elevation angle motor are provided between the ball serving device and base plate
It is connected with the second cam, the second cam can up and down adjust service direction by elevation angle motor.
Preferably, the driving means include reduction gearing, occlusion gear, rotate gear and service motor, occlusion
Gear be connected with the tooth bar engagement of batting cylinder bottom, and it is coaxially connected with reduction gearing to be engaged gear, reduction gearing and rotate gear
Engagement connection, the output end of motor of serving a ball is connected and drives rotate gear to rotate with rotate gear engagement.
Preferably, the periphery of the occlusion gear is provided with the teeth of protrusion, and only sets on the periphery of part
There are the teeth of protrusion.
Preferably, the ball serving device is configured with battery and controller, the elevation angle motor, service motor, pendulum
Dynamic motor and buncher are controlled by the controller.
Preferably, the wheel and cylinder are linked by belt series connection.
The semi-automatic tennis of the utility model picks up ball and service car, sticks tennis using cylinder, and is completed by ball case
Dress ball and ball, tennis is transported in storage ball basket.The present invention can conveniently be picked up and be scattered in net interior in a big way
Ball, greatly reduces the workload of field officer and the physical demands that people are unnecessary in training, time saving and energy saving,
Also improve ball picking-up efficiency simultaneously.Utility model works reliability, it is easy to use, it is adapted to penetration and promotion, can extensively be configured in each
Athletic training venue is used.
The technique effect of design of the present utility model, concrete structure and generation is made furtherly below with reference to accompanying drawing
It is bright, to be fully understood from the purpose of this utility model, feature and effect.
Description of the drawings
Fig. 1：The semi-automatic tennis of the utility model picks up ball and service bassinet structure 3 dimensional drawing；
Fig. 2：The semi-automatic tennis of the utility model picks up ball and service car top view；
Fig. 3：The utility model ball serving device schematic perspective view；
Fig. 4：The utility model ball serving device front view；
Fig. 5：The utility model ball serving device top view；
Fig. 6：The utility model ball serving device left view.
Specific embodiment
It is new below in conjunction with this practicality to make purpose, technical scheme and the advantage of the utility model embodiment clearer
Accompanying drawing in type embodiment, is clearly and completely described to the technical scheme in the utility model embodiment.Obviously, retouched
The embodiment stated is a part of embodiment of the utility model, rather than the embodiment of whole.Based on the enforcement in the utility model
Example, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made is belonged to
The scope of the utility model protection.
The utility model is described in further detail with reference to Figure of description.
As depicted in figs. 1 and 2, a kind of semi-automatic tennis that the utility model is provided picks up ball and car of serving a ball, including car body 1,
Underframe 2, wheel 3, cylinder 4, guide rail 5, ball case 6, storage ball basket 7 and ball serving device 8, the cylinder 4 passes through central shaft and is placed in
Vertical connecting rod 21 on underframe 2 is rotatably connected, and the guide rail 5 is placed in the rear end of cylinder 4 and is installed on underframe 2, and guide rail 5 is in arc
Shape structure simultaneously extends upwardly to the upside of storage ball basket 7.Guide rail 5 is provided with the strip gab groove 51 for the operation of ball case 6, the storage ball basket
7 are installed on the front end of car body 1, and bottom is provided with an aperture 71, and aperture 71 is connected by flexible pipe 9 with ball serving device 8, the table of the cylinder 4
Face is accompanied by VELCRO.The ball case 6 is in comb shape near the one end of cylinder 4, because being provided with the comb of cylinder protrusion on ball case 6
Toothing 61, comb structure presents the closeer state in the more sparse the inner in outer end.
The semi-automatic tennis of the utility model picks up ball and service car includes wheel 3, gently promotes to make to pick up ball car and starts
It is mobile, it is convenient quickly to move in place.The surface of the utility model cylinder 4 has one layer of VELCRO, can stick tennis,
During picking up the movement of ball car, conveniently can will be scattered in multiple tennises interior in a big way and collect.
The utility model ball case 6 can be moved on guide rail 5, complete to fill ball and the action of falling ball.Ball case 6 is near the one end of cylinder 4
It is outer to dredge interior close in comb shape, effectively tennis can be peeled off from cylinder 4 and be dropped down onto in ball case 6, then through running on guide rail 5,
Ball case 6 is delivered into the upside of storage ball basket 7, tennis is poured into storage ball basket 7 memory storage tennis.Guide rail 5 is arranged for double guide rails so that ball
Box 6 can be more stable operation thereon.Comb structure is that front end is elongated sharp, and very close to VELCRO, rear end gradually becomes
Wide and abundant, such comb structure slowly can take off tennis, it is to avoid tennis stress and jump up.
In enforcement, when needing to pick up ball, the semi-automatic tennis of the utility model is promoted to pick up ball and serve a ball what car to tennis was scattered
Place, during passage, the cylinder with VELCRO can stick the tennis being scattered in tennis court, and ball case is by tennis from rolling
Peel off on cylinder, complete to fill ball, then ball case is moved on guide rail, tennis is delivered into storage ball basket, complete down ball, tennis is stored
In storage ball basket.The utility model carries out in a rolling manner automatically picking up balls using the cylinder with VELCRO, convenient and swift,
And tennis will not be caused to damage, tennis service life will not be reduced, tennis picks up efficiency high.Additionally, pick up after ball finishes, also
Tennis can be poured into storage ball basket, to store tennis, capacity is big, easy to use.
Ball serving device 8 has alley 811, batting cylinder 810, fixed seat 812, driving means and left and right directions adjusting apparatus.
Batting cylinder 810 is located between alley 811 and fixed seat 812, and driving means are located at the downside of batting cylinder 810 and drive batting cylinder 810
Transverse shifting, is arranged with spring 83 in fixed seat 812, flexible pipe 9 is connected with alley 811.Tennis enters alley 811 by flexible pipe 9,
Batting cylinder 810 is moved and compression spring 83 towards fixed seat 812, and after compression to a certain degree, batting cylinder 810 is released, and moment produces
The very big elastic force impact tennis of life, launches tennis.Ball serving device also includes the speed governing electricity for adjusting the stroke of spring 83
Machine, the buncher is connected with spring 83, after adjusting the stroke of spring 83, the compression stress change of spring 83, and then make spring
The 83 strength of batting changes for producing, the speed of tennis service also changes therewith.
Base plate 10 is provided with the downside of ball serving device, base plate 10 is provided with chute 817, and chute 817 is arcuate shape.Alley
811 end has service mouth 86, and left and right directions adjusting apparatus include the located at the front side of service mouth, left and right directions adjusting apparatus
One cam 81, oscillating motor 82, rubber band 84 and gag lever post 85, the output end of oscillating motor 82 connects with one end of the first cam 81
Connect and drive the first cam 81 to rotate, oscillating motor 82 is arranged on motor cabinet 815, and gag lever post 85 is vertically installed at ball serving device
On 8 side wall and located at the both sides of oscillating motor 82, the lower end of gag lever post 85 is placed in the chute.Gag lever post 85 and motor cabinet
Connected by rubber band 84 between 815, the length of the first cam 81 is more than the spacing between oscillating motor 82 and gag lever post 85, because
, when the first cam 81 is rotated, the end of the first cam 81 is clashed into after gag lever post 85, to the active force meeting that gag lever post 85 applies for this
Promote gag lever post to horizontally slip in chute, and then promote the alley 811 of ball serving device to move left and right, make flying after tennis service
Row track produces left and right change.
It is provided with the second cam 11 between ball serving device 8 and base plate 10, the second cam 11 can up and down adjust service direction, second
Cam 11 drives also by an elevation angle motor 110, and the output end of elevation angle motor 110 is connected with the second cam 11, elevation angle motor
110 drive the second cam rotation, the second cam ball serving device 8 is swung up and down, in the flight path generation after tennis service
Lower change.Therefore, with reference to left and right directions adjusting apparatus and the second cam, the service direction of tennis can be made towards any one side
To.
Driving means include reduction gearing 87, rotate gear 813, occlusion gear 816 and service motor 814, occlusion
Gear 816 is connected with the tooth bar engagement of batting cylinder 810 bottom, and occlusion gear 816 is coaxially connected with reduction gearing 87, reduction gearing
87 are connected with the engagement of rotate gear 813, and output end and the rotate gear 813 of motor 814 of serving a ball are engaged to be connected and drive and turned
Moving gear 813 is rotated, and rotate gear 813 drives reduction gearing 87 to rotate, and reduction gearing 87 drives occlusion gear 816 to rotate.Sting
The periphery for closing gear 816 is provided with the teeth of protrusion, and the periphery of only part is provided with the teeth of protrusion, another portion
Periphery be smooth, motor 814 of serving a ball is batted the tooth bar of cylinder bottom by reducing gear engaged gears, cylinder of batting
810 (right side of Fig. 4) movements backward, the batting movement energy storage of compression spring 83 of cylinder 810.When last tooth on occlusion gear 816
When tooth is snapped to tooth bar, ball cylinder position just allows a tennis to fall to alley 811.Continue to rotate service motor 814,
Occlusion gear 816 is also rotated clockwise, and when last teeth is turned to tooth bar is departed from, and occlusion gear 816 cannot early bite tooth
Bar, the potential energy of compression spring 83 discharges immediately, and spring 83 resets, and the batting moment of cylinder 810 impacts to the left tennis, realizes service.And send out
Ball strength size, is realized (buncher that spring rear portion is provided with adjustment service dynamics) by compression spring length.To occlusion
When gear 816 is rotated further, first teeth on its surface continue to be engaged the tooth bar below batting cylinder, and batting cylinder 810 continues
To the right compression spring 83, are moved back and forth with this.
Adjustment service motor 814, by changing motor range length, adjusts the reduction length of spring 83, so as to change
Service machine impact force degree.Principle：It is long that spring Hooke's law F=k*L, elastic force F are multiplied by compression travel equal to the elastic coefficient k
Degree L.
Ball serving device 8 is also configured with battery and controller, and battery to all of motor in whole device is powered.Control
Device realizes respectively service, adjustment service dynamics and angle by 4 motors according to program setting.
The utility model wheel 3 and cylinder 4 are linked by belt series connection.In being embodied as, when tennis quantity very little when, net
Ball cannot reach ball case, therefore wheel and cylinder are together in series linkage by increasing belt so that pick up ball effect more preferable.
The utility model can easily, efficiently without the tennis for bending over just to be scattered in place collect dry
Only, the workload of field officer and the physical demands that people are unnecessary in training are greatly reduced, it is time saving and energy saving,
Simultaneously ball picking-up efficiency is also improved, due to shortening the ball time is picked up, increased the practice periods of practitioner, also just improve tennis
The efficiency of exercise.Utility model works reliability, it is easy to use, it is adapted to penetration and promotion, can extensively be configured in each sports training ground
Shop uses.Ball and service car are picked up using the semi-automatic tennis of the utility model, using simple, multiple tennises can be simultaneously picked up, together
When be easy to taking for tennis, substantially increase user's ball picking-up efficiency.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
Any modification, equivalent and improvement made within the spirit and principle of invention etc., should be included in guarantor of the present utility model
Within the scope of shield.
Claims (10)
1. a kind of semi-automatic tennis picks up ball and service car, including car body (1), underframe (2) and wheel (3), it is characterised in that also wrap
Include：Cylinder (4), guide rail (5), ball case (6), storage ball basket (7) and ball serving device (8), the cylinder (4) by central shaft with put
Vertical connecting rod (21) on underframe (2) is rotatably connected, and the guide rail (5) is installed on underframe (2) and is placed in after cylinder (4)
Side, the curved structure of guide rail simultaneously extends upwardly to storage ball basket (7) upside；Guide rail (5) is provided with the bar shaped run for ball case (6) and opens
Mouth groove (51), storage ball basket (7) is installed on car body (1) front end, and ball serving device stores up ball basket (7) bottom located at the lower section of storage ball basket
Portion is provided with an aperture (71), and aperture is connected by flexible pipe (9) with ball serving device (8), and cylinder (4) surface is accompanied by magic
Patch.
2. semi-automatic tennis according to claim 1 picks up ball and service car, it is characterised in that the ball case (6) is near rolling
Cylinder (4) one end is in comb shape, and the comb structure (61) of cylinder protrusion is provided with ball case, and it is sharp that comb structure presents front end
The gradually roomy and abundant state in rear end.
3. semi-automatic tennis according to claim 1 and 2 picks up ball and service car, it is characterised in that the ball serving device (8)
With alley (811), batting cylinder (810), fixed seat (812), driving means, left and right directions adjusting apparatus, batting cylinder is located at ball
Between road and fixed seat, driving means are located at batting cylinder downside and drive batting cylinder movement, and spring (83) is arranged with fixed seat,
Flexible pipe is connected with alley.
4. semi-automatic tennis according to claim 3 picks up ball and service car, it is characterised in that be provided with the downside of ball serving device
Base plate (10), base plate is provided with chute, and the end of alley (811) has service mouth (86), and left and right directions adjusting apparatus are located to be sent out
The front side of ball mouth, left and right directions adjusting apparatus include the first cam (81), oscillating motor (82), rubber band (84) and gag lever post
(85), the output end of oscillating motor is connected and drives the first cam rotation, oscillating motor to be arranged on electricity with one end of the first cam
On support, gag lever post is vertically installed on the side wall of ball serving device and located at the both sides of oscillating motor, and the lower end of gag lever post is placed in
In the chute, connected by rubber band (84) between gag lever post and motor cabinet, the length of the first cam more than oscillating motor with
Spacing between gag lever post.
5. semi-automatic tennis according to claim 4 picks up ball and service car, it is characterised in that the ball serving device and base plate
Between be provided with the second cam (11) and elevation angle motor (110), the output end of elevation angle motor is connected with the second cam, and the second cam can
Service direction is adjusted up and down by elevation angle motor.
6. semi-automatic tennis according to claim 5 picks up ball and service car, it is characterised in that the driving means include subtracting
Fast gear (87), occlusion gear (816), rotate gear (813) and service motor (814), occlusion gear and batting cylinder bottom
The tooth bar engagement connection in portion, occlusion gear is coaxially connected with reduction gearing, and reduction gearing is connected with rotate gear engagement, and service is driven
The output end of dynamic motor is connected and drives rotate gear to rotate with rotate gear engagement.
7. semi-automatic tennis according to claim 6 picks up ball and service car, it is characterised in that the driving means also include
For adjusting the buncher of spring travel, the buncher is connected with spring (83).
8. semi-automatic tennis according to claim 1 picks up ball and service car, it is characterised in that the wheel (3) and cylinder
(4) linked by belt series connection.
9. semi-automatic tennis according to claim 7 picks up ball and service car, it is characterised in that the ball serving device (8) is matched somebody with somebody
Battery and controller are equipped with, the elevation angle motor, service motor, oscillating motor and buncher receive the controller
Control.
10. semi-automatic tennis according to claim 6 picks up ball and service car, it is characterised in that the occlusion gear (816)
Periphery be provided with the teeth of protrusion, and the periphery of only part is provided with the teeth of protrusion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621216391.1U CN206152234U (en) | 2016-11-11 | 2016-11-11 | Ball and service car are picked up to semi -automatic tennis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621216391.1U CN206152234U (en) | 2016-11-11 | 2016-11-11 | Ball and service car are picked up to semi -automatic tennis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206152234U true CN206152234U (en) | 2017-05-10 |
Family
ID=58659855
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621216391.1U Withdrawn - After Issue CN206152234U (en) | 2016-11-11 | 2016-11-11 | Ball and service car are picked up to semi -automatic tennis |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206152234U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106362371A (en) * | 2016-11-11 | 2017-02-01 | 湖北科技学院 | Semi-automatic tennis ball picking up and serving vehicle |
| TWI655023B (en) * | 2018-09-14 | 2019-04-01 | 崑山科技大學 | Smart tennis ball picking machine and method thereof |
| CN111214812A (en) * | 2020-02-03 | 2020-06-02 | 北方民族大学 | Tennis ball collecting device for tennis training and using method thereof |
| CN111388969A (en) * | 2020-04-07 | 2020-07-10 | 九江学院 | Sports teaching badminton save set |
| CN114247111A (en) * | 2021-12-23 | 2022-03-29 | 吉林体育学院 | Badminton collection device |
-
2016
- 2016-11-11 CN CN201621216391.1U patent/CN206152234U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106362371A (en) * | 2016-11-11 | 2017-02-01 | 湖北科技学院 | Semi-automatic tennis ball picking up and serving vehicle |
| CN106362371B (en) * | 2016-11-11 | 2018-11-02 | 湖北科技学院 | A kind of semi-automatic tennis picks up ball and service vehicle |
| TWI655023B (en) * | 2018-09-14 | 2019-04-01 | 崑山科技大學 | Smart tennis ball picking machine and method thereof |
| CN111214812A (en) * | 2020-02-03 | 2020-06-02 | 北方民族大学 | Tennis ball collecting device for tennis training and using method thereof |
| CN111388969A (en) * | 2020-04-07 | 2020-07-10 | 九江学院 | Sports teaching badminton save set |
| CN114247111A (en) * | 2021-12-23 | 2022-03-29 | 吉林体育学院 | Badminton collection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170510 Effective date of abandoning: 20181102 |